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3 Arroyo Vista Legis Action Attch 2 D (2)
zins mm Ank ARROYO VISTA HOUSING PROJEC DUBLIN, ALAMEDA CALIFORNIA I Prepared For: Jerry Haag 2029 University Avenue Berkeley, CA 94704 Contact: Tom Fraser fraser@wra-ca.com Date: February 2008 3�7 � 201 z*� wra ENV�RONNIEN17A, CONSULTANTS 2169-G E-cs; '-.cncisco Blvd- Son Rcfoel: CA 9490 (4151 454-8868 tel (415" 4511-0129 fax itoCwo-CC.corr.. www.w,-o-ce.com 9 0 _��3q 4 E01 TABLE OF CONTENTS 1.0 INTRODUCTION ...................... ..............................1 2.0 REGULATORY BACKGROUND ............ ............................... 1 2.1 Federal Regulations ............... ............................... 1 2.2 State Law ..... ................. ..............................3 2.3 Local Ordinances .................. ..............................5 3.0 METHODS ............................. ..............................5 3.1 Biological Communities ............ ............................... 5 3.1.1 Non - sensitive Biological Communities .......................... 6 3.1.2 Sensitive Biological Communities .............................. 6 3.2 Special Status Species ............ ............................... 6 3.2.1 Literature Review ........... ............................... 6 3.2.2 Site Assessment ............ ............................... 7 4.0 RESULTS .............................. ..............................8 4.1 Biological Communities ............ ............................... 8 19 4.1.2 Sensitive Biological Communities ............................. 10 4.2 Special Status Species ........... ............................... 12 20 4.2.1 Plants ..................... .............................12 Riparian Habitat ................. ............................... 20 4.2.2 Wildlife .................. ............................... 12 5.0 SUMMARY AND RECOMMENDATIONS .... ............................... 17 5.1 Biological Communities ........... ............................... 17 5.2 Special Status Plant Species ....... ............................... 17 5.3 Special Status Wildlife Species ..... ............................... 17 6.0 POTENTIAL IMPACTS AND MITIGATION ... ............................... 19 6.1 Special Status Species ........... ............................... 19 6.1.1 Impacts to Special Status Species ............................ 19 6.1.2 Suggested Mitigation ....... ............................... 20 6.2 Riparian Habitat ................. ............................... 20 6.2.1 Impacts ................... .............................20 6.2.2 Suggested Mitigation ....... ............................... 20 6.3 Section 404 Wetlands ............ ............................... 21 6.3.1 Impacts ................... .............................21 6.3.2 Suggested Mitigation ....... ............................... 21 6.4 Wildlife Corridors and Habitat ...... ............................... 21 6.4.1 Impacts ................... .............................21 6.4.2 Suggested Mitigation ....... ............................... 22 6.5 Local Policies ..................... .............................22 6.5.1 Impacts ................... .............................22 6.5.2. Suggested Mitigation ....... ............................... 22 6.6 Conservation Plans ................ .............................23 6.6.1 Impacts ..................... .............................23 6.6.2 Suggested Mitigation ......... ............................... 23 7.0 REFERENCES .......................... .............................23 LIST OF FIGURES Figure 1. Project Area Location Map ............................................ 2 Figure 2. Project Area ........................ ............................... 9 Figure 3. Areas with Wetland Plants . ............................... ...... 11 Figure 4. Special Status Plant Species Occurrences within Five Miles of Project Area ..... 13 Figure 5. Special Status Wildlife Species Occurrences within Five Miles of Project Area .... 14 LIST OF APPENDICES Appendix A- List of Observed Plant and Animal Species Appendix B- Potential for Special Status Plant and Wildlife Species to Occur in the Project Area Appendix C- Representative Project Area Photographs y r 9 f q S-0 1.0 INTRODUCTION On September 20, 2007, WRA, Inc. performed an assessment of biological resources at the 25- acre existing Arroyo Vista housing site (Project Area) in Dublin, Alameda County, California, which is located along Dougherty Road just north of Highway 580 (Figure 1). The purpose of the assessment was to gather information necessary to complete a review of biological resources, including an assessment of any sensitive habitats or special status species under the California Environmental Quality Act (CEQA). This information will be used in the development of an Initial Study and an Environmental Assessment document to support CEQA and National Environmental Policy Act (NEPA) review and analysis of this project. This report describes the results of the site visit, which assessed the Project Area for (1) the presence of special status species; (2) the potential to support special status species; and (3) the presence of other sensitive biological resources protected by local, state, and federal laws and regulations. This report also contains an evaluation of potential impacts to special status species and sensitive biological resources that may occur as a result of the proposed project, and potential mitigation measures to compensate for those impacts. A biological resources assessment provides general information on the potential presence of sensitive species and habitats, but is not an official protocol -level survey for listed species that may be required for project approval by local, state, or federal agencies. Specific findings on the occurrence of any species or the presence of sensitive habitats may require that protocol -level surveys be conducted. This assessment is based on information available at the time of the study and on site conditions that were observed on the date of the site visit. 2.0 REGULATORY BACKGROUND The following sections explain the regulatory context of the biological resources assessment, including applicable laws and regulations that were applied to the field investigation and analysis of potential project impacts. 2.1 Federal Regulations Special Status Species Federal special status species include those plants and wildlife species that have been formally listed, are proposed as endangered or threatened, or are candidates for such listing under the Federal Endangered Species Act (ESA). The ESA affords protection to both listed and proposed species. In addition, U.S. Fish and Wildlife Service ( USFWS) Birds of Conservation Concern, and sensitive species included in USFWS Recovery Plans are all considered special status species. Migratory Bird Treaty Act In addition to regulations for special status species, most birds in the United States, including non - status species, are protected by the Migratory Bird Treaty Act of 1918. Under this legislation, destroying active nests, eggs, and young is illegal. ~~Z ~~ goy } _~ ~~ r, .~ .,tom: ~ ~ ~~ ~~` ~. a ~ ~; ~ ~ / .. '~- ., ~- ,~-. , 6_ ` ~ z ~,~; -, / _ • ~« `V ~~ __ ~ „ ~ '~ ~ ~ j! ~; ~ ~... . ~ r e i r ' ._ ~ _._. ;: C ~ ~ ~< ` ~ T :_ , .. .: ~ ~~` c ~ ~ ~ ~ ~ _ .~sc---~.x~ } ~ rf ' ,, _ 1: _. ., ,~:~ 1 ~ _ ,~ ~~ ~~ ~ _Pr~~ject Area ~ ~ ~ ~~~~' - ~{ -.~ ~.~'~ t t ~..: ~,,_,, ~. ~ ~ iii ~ ` _ ~.. i y,. ~ ,.~ _', 1 r - ~ .~f~ ~t_ ~ ~ 7 - 1 ,~~I, i r ~ - ~ ~~ ~ ~ ~'. `~~'~ - - ~', : ~ a ;~2~-~_J ~ti~• ! . 3 ~~ ~~~ `y".f i.~..~....~...~ .~~ ~ i~ ~ ~i ..E x e ~~ v_ '. .GRA1~E3'.f` ~ - ~ :~ ~ _ C Y ~ ='` - Feet 0 X01,000 2,000 -a- ~~ ~ ,~ :~ ~ Figure 7 . Project Area coca#ion Map Dublin Arroyo Vis#a Biological Assessmen# ~' ~,' ~' `x sM ,~~ 325 . ~~ ~~_.~ ~~~~Z. li -----~- ~3 ~._ i a ~r~ EI~VIRONMEt+t'A_ CCPtSt}L3ANTS Date: September 2007 BaSerra0: i15G5 Topo Quad MaD ey: Derek Chan filepaih: t:\ACad 2000 FiMS\16000\16142\q's\ ArCMap\figl_LOCMaD PS_200~0925.mxtl ttis. Critical Habitat Critical habitat is a term defined and used in the ESA as a specific geographic area that contains features essential for the conservation of a threatened or endangered species and that may require special management and protection. The ESA requires federal agencies to consult with the USFWS to conserve listed species on their lands and to ensure that any activities or projects they fund, authorize, or carry out will not jeopardize the survival of a threatened or endangered species. In consultation for those species with critical habitat, federal agencies must also ensure that their activities or projects do not adversely modify critical habitat to the point that it will no longer aid in the species' recovery. In many cases, this level of protection is similar to that already provided to species by the ESA "jeopardy standard." However, areas that are currently unoccupied by the species but which are needed for the species' recovery, are protected by the prohibition against adverse modification of critical habitat. Sensitive Biological Communities Federal sensitive biological communities include habitats thatfulfill special functions or have special values, such as wetlands, streams, and riparian habitat. These habitats are regulated under federal regulations including the Clean Water Act. Waters of the United States The U.S. Army Corps of Engineers (Corps) regulates "Waters of the United States" under Section 404 of the Clean Water Act. "Waters of the U.S."are defined broadly as waters susceptible to use in commerce, including interstate waters and wetlands, all other waters (intrastate waterbodies, including wetlands), and their tributaries (33 CFR 328.3). Potential wetland areas, according to the three criteria used to delineate wetlands stated in the Corps of Engineers Wetlands Delineation Manual (1987), are identified by the presence of (1) hydrophytic vegetation, (2) hydric soils, and (3) wetland hydrology. Areas that are inundated for sufficient duration and depth to exclude growth of hydrophytic vegetation are subject to Section 404 jurisdiction as "other waters" and are often characterized by an ordinary high water line (OHW). Other waters, for example, generally include lakes, rivers, and streams. The placement of fill material into "Waters of the U.S." (including wetlands) generally requires an individual or nationwide permit from the Corps under Section 404 of the Clean Water Act. 2.2 State Law Special Status Species State special status species include those plants and wildlife species that have been formally listed, are proposed as endangered or threatened, or are candidates for such listing under the California Endangered Species Act (CESA). The CESA affords protection to both listed and proposed species. In addition, California Department of Fish and Game (CDFG) Species of Special Concern, which are species that face extirpation in California if current population and habitat trends continue, and CDFG special status invertebrates are all considered special status species. Although CDFG Species of Special Concern generally have no special legal status, they are given special consideration under CEQA. 3 In addition, plant species on California Native Plant Society (GNPs) Lists- 1 and 2 are also considered special status plant species. Impacts to these species are considered significant according to CEQA. CNPS List 3 plants have little or no protection under CEQA, but are included in this analysis for completeness. Sensitive Biological Communities State sensitive biological communities include habitats that fulfill special functions or have special values, such as wetlands, streams, and riparian habitat. These habitats are protected in California under state regulations such as the Porter-Cologne Act, the CDFG Streambed Alteration Program, and CEQA. Waters of the State The term "Waters of the State" is defined by the Porter-Cologne Act as "any surface water or groundwater, including saline waters, within the boundaries of the state." The Regional Water Quality Control Board (RWQCB) protects all waters in its regulatory scope, but has special responsibility for wetlands, riparian areas, and headwaters. These waterbodies have high resource value, are vulnerable to filling, and are not systematically protected by other programs. RWQCB jurisdiction includes "isolated" wetlands and waters that may not be regulated by the Corps under Section 404. "Waters of the State" are regulated by the RWQCB under the State Water Quality Certification Program which regulates discharges of fill and dredged material under Section 401 of the Clean Water Act and the Porter-Cologne Water Quality Control Act. Projects that require a Corps permit, or fall under other federal jurisdiction, and have the potential to impact `NVaters of the State," are required to comply with the terms of the Water Quality Certification determination. If a proposed project does not require a federal permit, but does involve dredge or fill activities that may result in a discharge to "Waters of the State," the RWQCB has the option to regulate the dredge and fill activities under its state authority in the form of Waste Discharge Requirements. Streams. Lakes. and Riparian Habitat Streams and lakes, as habitat for fish and wildlife species, are subject to jurisdiction by CDFG under Sections 1600-1616 of the State Fish and Game Code. Alterations to or work within or adjacent to streambeds or lakes generally require a 1602 Lake and Streambed Alteration Agreement. The term stream, which includes creeks and rivers, is defined in the California Code "' of Regulations (CCR) as follows: "a body of water that flows at least periodically or intermittently through a bed or channel having banks and supports fish or other aquatic life. This includes watercourses having a surface or subsurface flow that supports or has supported riparian vegetation" (14 CCR 1.72). In addition, the term stream can include ephemeral streams, dry washes, watercourses with subsurface flows, canals, aqueducts, irrigation ditches, and other means of water conveyance if they support aquatic life, riparian vegetation, orstream-dependent ~ terrestrial wildlife (CDFG ESD 1994). Riparian is defined as, "on, or pertaining to, the banks of a stream;" therefore, riparian vegetation is defined as, "vegetation which occurs in and/or adjacent to a stream and is dependent on, and occurs because of, the stream itself" (CDFG ESD 1994). ,~ Removal of riparian vegetation also requires a Section 1602 Lake and Streambed Alteration Agreement from CDFG. 4 Other Sensitive Biological Communities Other sensitive biological communities not discussed above include habitats that fulfill special functions or have special values. Natural communities considered sensitive can be identified by CDFG. CDFG ranks sensitive communities as "threatened" or "very threatened" and keeps records of their occurrences in its Natural Diversity Database. Sensitive plant communities are also identified by CDFG on their List of California Natural Communities Recognized by the CNDDB. Impacts to sensitive natural communities identified in local or regional plans, policies, regulations or by the CDFG or USFWS must be considered and evaluated under CEQA (California Code of Regulations: Title 14, Div. 6, Chap. 3, Appendix G). 2.3 Local Ordinances Sensitive Biological Communities Local sensitive biological communities include habitats that fulfill special functions or have special values, such as wetlands, streams, and riparian habitat. These habitats are protected by local ordinances or policies (City or County Tree Ordinances, Special Habitat Management Areas, and General Plan Elements). Ordinance No. 52-87 of the City of Dublin establishes requirements for the protection of watercourses, including a 20-foot setback area adjacent to open channel watercourses, such as Alamo Creek. Chapter 5.60 of the City of Dublin's Municipal Ordinances also specifies that Heritage Trees are protected. These include any oak, bay, cypress, maple, redwood, buckeye, or sycamore tree having a diameter of 24 inches or more at breast height. 3.0 METHODS On September 20, 2007, the Project Area was traversed on foot to determine (1) plant communities present within the Project Area, (2) if existing conditions provided suitable habitat for any special status plant or wildlife species, and (3) if sensitive habitats are present. All plant and wildlife species encountered were recorded, and are summarized in a species list in Appendix A. 3.1 Biological Communities Prior to the site visit, the Soil Survey of Alameda County, California (U.S. Department of Agriculture 1966) was examined to determine if any unique soil types. that could support sensitive plant communities and/or aquatic features were present in the Project Area. Aerial photographs and previous biological reports for the neighboring area were also reviewed. Biological communities present in the Project Area were classified based on existing plant community descriptions described in the Preliminary Descriptions of the Terrestrial Natural Communities of California (Holland 1986). However, in some cases it is necessary to identify variants of community types or to describe non-vegetated areas that are not described in the literature. Biological communities were classified assensitive ornon-sensitive as defined by CEQA and other applicable laws and regulations. 5 ~ y (Q ~~ ~ of ~_. 3.1.1 Non-sensitive Biological Communities Non-sensitive biological communities are those communities that are not afforded special protection under CEQA, and other state, federal, and local laws, regulations and ordinances. These communities may, however, provide suitable habitat for some special status plant or wildlife species and are identified or described in Section 4.1.1 below. 3.1.2 Sensitive Biological Communities Sensitive biological communities are defined as those communities that are given special protection under CEQA and other applicable federal, state, and local laws, regulations and ordinances. Applicable laws and ordinances are discussed above in Section 2.0. Special methods used to identify sensitive biological communities are discussed below. Wetlands and Waters The Project Area was surveyed to determine if any wetlands and waters potentially subject to jurisdiction by the Corps, RWQCB, or CDFG were present. The assessment was based primarily on the presence of wetland plant indicators, but may also include any observed indicators of wetland hydrology or wetland soils. Any potential wetland areas were identified as areas dominated by planf species with a wetland indicator status' of OBL, FACW, or FAC as given on the U.S. Fish and Wildlife Service List of Plant Species that Occur in Wetlands (Reed 1988). Evidence of wetland hydrology can include direct evidence (primary indicators}, such as visible inundation or saturation, surface sediment deposits, algal mats and drift lines, or indirect indicators (secondary indicators), such as oxidized root channels. Some indicators of wetland soils include dark colored soils, soils with a sulfidic odor, and soils that contain redoximorphic features as defined by the Corps Manual (Environmental Laboratory, 1987) and Field Indicators of Hydric Soils in the United States (NRCS, 2002). Other Sensitive Biological Communities The Project Area was evaluated for the presence of other sensitive biological communities, including riparian areas and sensitive plant communities recognized by CDFG. If present in the Project Area, these sensitive biological communities were mapped and are described in Section 4.1.2 below. 3.2 Special Status Species 3.2.1 Literature Review Potential occurrence of special status species in the Project Area was evaluated by first determining which special status species occur in the vicinity of the Project Area through a literature and database search. Database searches for known occurrences of special status species focused on the Dublin 7.5 minute USGS quadrangle and the eight surrounding USGS quadrangles. ' OBL =Obligate, always found in wetlands (> 99% frequency of occurrence); FACW = Facultative wetland, usually found in wetlands (67-99% frequency of occurrence); FAC =Facultative, equal occurrence in wetland or non-wetlands (34-66% frequency of occurrence). 6 w~ ~x - ~ _. The following sources were reviewed to determine which special status plant and wildlife species have been documented to occur in the vicinity of the Project Area: • California Natural Diversity Database records (CNDDB) (CDFG 2007) • USFWS quadrangle species lists (USFWS 2007) • CNPS Electronic Inventory records (GNPs 2007) • CDFG publication "California's Wildlife, Volumes I-III" (Zeiner et al. 1990) • CDFG publication "Amphibians and Reptile Species of Special Concern in California" (Jennings 1994) • A Field Guide to Western Reptiles and Amphibians (Stebbins, R.C. 2003) 3.2.2 Site Assessment A site visit was made to the Project Area to search for suitable habitats for species identified in the literature review as occurring in the vicinity. The potential for each special status species to occur in the Project Area was then evaluated according to the following criteria: 1) No Potential. Habitat on and adjacent to the site is clearly unsuitable for the species requirements (foraging, breeding, cover, substrate, elevation, hydrology, plant community, site history, disturbance regime). 2) Unlikely. Few of the habitat components meeting the species requirements are present, and/or the majority of habitat on and adjacent to the site is unsuitable or of very poor quality. The species is not likely to be found on the site. 3) Moderate Potential. Some of the habitat components meeting the species requirements are present, and/or only some of the habitat on or adjacent to the site is unsuitable. The species has a moderate probability of being found on the site. 4) High Potential. All of the habitat components meeting the species requirements are present and/or most of the habitat on or adjacent to the site is highly suitable. The species has a high probability of being found on the site. 5) Present. Species is observed on the site or has been recorded (i.e. CNDDB, other reports) on the site recently. The site assessment is intended to identify the presence or absence of suitable habitat for each special status species known to occur in the vicinity in order to determine its potential to occur in the Project Area. The site visit does not constitute aprotocol-level survey and is not intended to determine the actual presence or absence of a species; however, if a special status species is observed during the site visit, its presence will be recorded and discussed. Appendix B presents the evaluation of potential for occurrence of each special status plant and wildlife species known to occur in the vicinity of the Project Area with their habitat requirements, potential for occurrence, and rationale for the classification based on criteria listed above. Recommendations for further surveys are made in Section 5.0 below for species with a moderate or high potential to occur in the Project Area. 7 ~~~ ~~ roc 4.0 RESULTS The entire Project Area has previously been disturbed and does not represent ahigh-value habitat. It is a highly modified site within the city of Dublin, surrounded by other housing developments and ruderal fields. On the east side it is bounded by Dougherty Road; Amador Valley Boulevard is northwest of the Project Area. Alamo Creek flows past the western edge of the Project Area and is fenced off from the site. The elevation of the Project Area ranges from 350 to 372 feet. More than eighty percent of the site is a housing development. Community center buildings, an outdoor basketball court, and a ring of tall redwoods mark the center of the housing development (Figure 2). This development has two main access roads (Monterey Drive and North Mariposa). Houses are clustered on either side of Monterey Drive, both north and south of the loop-shaped North Mariposa road. Houses face inwards towards a shared courtyard consisting of a lawn, parking lot, and pathways. Vegetation throughout the housing subdivision consists primarily of landscaped ornamentals. Domestic or feral cats appear to frequent the Project Area, reducing habitat value for wildlife. The rest of the site is occupied by two undeveloped ruderal fields, one at the northern end of the site (North Field) and one on the western edge of the site (West Field). In North Field brush piles, wood chips, and litter cover much of the ground, and a mix of mostly non-native weedy plants comprises most of the vegetation. A few eucalyptus trees (Eucalytpus sp.) and coast live oak trees (Quercus agrifolia) are growing at the far eastern end of North Field, near Dougherty Road. West Field is more manicured in appearance and is surrounded on all sides by a paved foot/bikepath. A basketball court borders the eastern edge of this field. The central section of this field has been mowed and a layer of sawdust placed around sections of the perimeter of the mowed area. The topography slopes downward from the north and east edges of West Field towards a low point in the northwestern corner, where a drain is located. Shrubs and trees, including willow (Salix sp.), coyote brush (Baccharis pilularis), cotoneaster (Cotoneastersp.), firethorn (Pyracantha sp.), and non-native ornamentals are growing along the fence line that borders the western edge of this field. Soils have been disturbed in both of these fields. North Field was disced, and both fields (especially West Field) appear to have been graded and modified with earth-moving equipment. A wide swath of gravel has been laid on top of the soil in the southwestern section of the North Field, searing as what appears to be a temporary roadway/turnaround area. The following sections present the results and discussion of the biological assessment within the Project Area. 4.1 Biological Communities The predominant biological community present in the Project Area is ruderal herbaceous grassland, which is anon-sensitive community. No sensitive biological communities are found in the Project Area, although a small area of wetland plants was found and is discussed below. 4.1.1 Non-sensitive Biological Communities Ruderal herbaceous grassland Although not described in the literature, ruderal herbaceous grassland includes areas that have been partially developed or have been used in the past for agriculture. Wildlife within this 8 ~> o~ ~~ ~ gds community may often include such small rodents as mice and voles, as well as snakes, lizards, and , foraging songbirds. Ruderal herbaceous grassland can also be used by special status or larger animals depending on proximity to open space and other factors. .~ The two fields within the Project Area can best be described as ruderal herbaceous grassland, particularly North Field, which is not mowed like West Field. Plant species observed in both these fields include non-native plant species such as wild oat (Avena fatua), ripgut brome (Bromus diandrus), yellow star thistle (Centaurea so/stitialis), field bindweed (Convolvulus arvensis), Bermuda grass (Cynodon dactylon), sweet fennel (Foeniculum vulgare), daflis grass (Paspalum „~ dilatatum), Harding grass (Phalaris aquatics), bristly ox tongue (Picris echioides), curly dock (Rumexcrispus),andstrawberryclover(Trifoliumfragiferum). Additionalnon-nativesoccurringjust '~' in North Field are cutleaf geranium (Geranium dissectum), Mediterranean barley (Hordeum ~, marinum), prickly lettuce (Lactuca serriola), Italian ryegrass (Lolium multiflorum), wild radish (Raphanus sativus), tumbleweed (Salsola tragus), and milk thistle (Silybum marianum). Plants growing along the fence line bordering the north portion of North Field include English ivy (Hedera helix), periwinkle (Vinca major, and grape vine (Vitis sp.). The native slender willowherb 'r (Epilobium ciliatum) is also present in North Field. Wildlife use of these areas appears to be limited. Raccoon scat was observed along with several small rodent burrows, likely vole (Microtus sp.) or gopher (Thomomys bottae). Birds in these areas included Wild Turkey (Megeagris '"" gallopavo), American Crow (Corvus brachyrhynchos), and European Starling. (Sturnus vulgaris). ~, This community, making up the areas within the Project Area that are not already paved and developed, consists mostly of non-native plants and likely common wildlife species. It is a non- sensitive community. 4.1.2 Sensitive Biological Communities Wetlands According to the Soil Surrey of Alameda County, California (U.S. Department of Agriculture 1966), ` two different soil types occur in the Project Area: Diablo clay (DbC) and Clear Lake clay (CdA). The majority of the site has Diablo clay soils, which are classified as well-drained and occurring on slopes of 7-15%. There is a small inclusion of Clear Lake clay soils in the Project Area encompassing the western half of North Field and just the northwestern tip of West Field. These soils are classified as moderately well-drained, occurring on 0-3% slopes. "'~ Two small (roughly 250 square feet) areas dominated by wetland plants were mapped on either side of the fooUbikepath bordering the northwestern edge of West Field within the area mapped as having Clear Lake clay soils. These plants occur along a drain line in the vicinity of the drain, as shown on Figure 3 and in the photographs in Appendix C. Plants observed were tall flat-sedge (Cyperus eragrostis), dallis grass (Paspalum dilatatum), narrowleaf plantain (Plantago lanceo/ata), California bulrush (Scirpus californicus), and rough cockle-bur (Xanthium strumarium). No other sensitive biological communities are present within the Project Area. 10 ~~l ~ ~o F:: _ ~ o~ ~~ ~~ Z ®~ 4.2 Special Status Species 4.2.1 Plants Based on a review of the resources and databases given in Section 3.2.1, thirty-five special status plant species have been recorded in the vicinity of the Project Area (Appendix B). Six of these special status species have been documented to occur within five miles of the Project Area, as shown on Figure 4. These are Congdon's tarplant (Centromadia parryi ssp. congdoniv), Mt. Diablo buckwheat (Eriogonum truncatum), San Joaquin spearscale (Atriplex joaquiniana), Diablo helianthella (Helianthella castanea), saline clover (Trifolium depauperatumvar. hydrophilum), and hairless popcorn flower (Plagiobothrys glaber). No plant species requiring protection were observed during the site assessment. The site assessment occurred during the blooming period of Congdon's tarplant (which blooms between May and October), Mt. Diablo buckwheat (which blooms between April and September), and San Joaquin spearscale (which blooms between April and October); however, these species were not observed during the survey. While the survey did not occur during the blooming period of Diablo helianthella and saline clover, suitable habitat does not exist on-site for either of these species. Diablo helianthella was historically found in the hills to the northwest of the Project Area "~ (see Figure 4), and saline clover requires marshes, swamps, vernal pools, or valley and foothill grassland with mesic/alkaline soils. Hairless popcorn flower was historically documented in the Project Area, but this native annual herb is now presumed extinct in California. ~. One naturalized Northern California black walnut (Juglans californica var. hindsiv) seedling was observed during the September 20"' survey. This seedling was observed along the fence line on .~ the western edge of West Field. This is a CLAPS List 1 B species and is usually found in riparian forest and riparian woodland, at elevations between 0 - 440 meters. It blooms between April and `` May. Since this species is widely naturalized in cismontane California, and since only native stands „~ of this species have protected status, this individual plant does not require any special protection in the Project Area. The remaining species documented to occur in the vicinity of the Project Area '' have no potential to occur there, either due to lack of suitable habitat or because the Project Area is outside of the species' elevation range. "" 4.2.2 Wildlife All of the wildlife observed in the Project Area are commonly found species, and many are adapted to occupying disturbed or urban areas. No special status wildlife species were observed during the site assessment. Thirty-six special status species of wildlife have been recorded in the vicinity of the Project Area. Appendix B summarizes the potential for each of these species to occur in the Project Area. A map showing 2007 CNDDB occurrences of special status wildlife species is provided in Figure 5. No special status species are known to occur or have a high potential to occur within the Project Area. Two special status wildlife species have a moderate potential to occur in the Project Area: the pallid bat and Loggerhead Shrike. Special status wildlife species of particular interest are discussed below. 12 ~~ / 1 1 ~ O ~ - ._ _ _ - -' - - - ,~. ems:.-~ _.. ,.. ~ _ _ «. ~ ~... ~` L., _ ti: -~ ~. .~ ~ ~ ~~ u ~ _ ~ - -° ~ r +° ~.. ~_ _, i .. • - -. - ~ _ Wit` - ~'''' ~ ~ ``~` ~ ti..~._.~.,~, `b. ~ - - ~` ~ 1 i _ l ~ ~ `\ ~ ` t ±~ .~ ~._ ,... " a ~, ,... ~... r .. _.... ,. .- _ _ ,w r. ~ .~ ~ ~ ~' .. _ .: ~~ ~ ~_ .- ° ~s._ ~ _ e ,_,.,. __ _ m _ ~ ,~_ .~.., e„_ .. _ w 4 ., •_ I ~,~+. °° o u x M, ,~ ~ ~. . `° _.. - ~ ~~~ _~ s [" i r ~ ~~~, - : ~ -~__ _, _. .. _. ~ti _ProjectArea - ~ -~ - ! ~. r - - - . _ ~ n s _.., ~; -. .. f i ~ o ~ a !" ~ _ a "~~ ~ ,:. ___ a, ~ _ ~1 - _ ~-. _ ~ _ „_ _ f_ .~ __~~ - w.e - -..__ _ _ :. .._ ~~ ~ ~ _ x - ~ _ r ~' _ ~ .. ~.~. .. E .. ,. • '" ~ - E e a ~ ~. - ~ ,~: . t - r' -- +- - ~,~ ~ -. ,. ~ ~ _..,,a+e ~.,<,~ ~_ w ,~._ - _ ._ o ._ - _ -~I - ~ ~ u ~. A , ~- ~"' - .~. ~O r^ " __ - ----- _.- ~ ~ ~~ ... -- .. ._ _ ~ ~ _ .~ ~ __ _` ~ ` ~~ _, .~ ~ ~~ .. ~~~~ ~~5~mile Buffer~from Project Area°~ _ _~.. _ ~ ~ ti ~ ~ ~,~. - ~~ Congdon's Tarptan! . ' - ` ~ -'~. _'-- Oiabio HetiaMhe~3 ~ .. ' . _.~_ , _ __ < ~ d~ ~+, . .~_- ~ _ _-~;=.~ ML DiabtO BUCkwkl@3t -% .. ~ __ .._"x~. _., _ 3 ~ __ . ~ ~. :, ~~ _ - ~ _ '. Haan Joaquir+ Spearsple _~' ~ ~ ~~ ` ~ ~~ m Hairless Popcorn-flower - ~° -: ~ ~. ~-~ - ~, ~ ~ ~~ - ®Saline pover , y -~~ ~ ~ ~ 0 1 2 4 ~- - ~ ~ e . Miles :- ~; ~_;~ Figure 4. Special Status Plant Species ~ m Occurrences within Five Miles of Project Area ~~ ~a ETv'diRflNNict~t'At. CCPSSILTkNiS Gate: October 2007 Dublin Arroyo Vis#a Biological Assessment BasemaD: t15G5TOpoQuao Map By: Oerek Ct+an A I.. w... r1 .. ~.~.....~.. 1'~..I:F.......:.. 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American Badger ~:: ~ ~ ' San Jaa~in Kit fox ~ PaNid Bai '~ _ -_ -- ;... a - ~ ~~ _~. Cakbmia Horned Lark Y~xna My~otis ~ TricokXed Blactmird 1 :> ._ _ _.. ._ .... _ . r ;~ Calsfomia Lirxieaepa ~ Burrowing Owl ~ Wesfem Pond Turtle a' _ ,,,.x; Calibmia ReC-IeggeC Prog ~ Gdden 5agk ~ Whi1e-tai~d Kae ~ ., - - .. Cakiom;a Tger Salamander Noc~em Harries g.- ~ 1 2 4 ~;- Mi~s~ ~_ a a _~ Figure 5. Special Status Wildlife Species Occurrences within Five Miles of Project Area ~~~ ~~ ENYIROt3Mi£NtT;P~I CCNSFSLikN35 Dublin Arroyo Vista Biological Assessment Date: Dctooer 2007 9axmaD: t35G57opoQuad hlap By: Derek Chan • FNCtfath: L:WCAa 2000Fik9\16000\16142\g~s\ Alameda County. Califorrna _ _____ _ ~r«Sao\F~95_~,DDQ_an~mal~~oo~1~2.mxd L.u ~;, &:., 35~ o f 80~ Burrowing Owl (Athene cunicularia), CDFG Species of Special Concern; USFWS Bird of Conservation Concern. Burrowing Owl typically favors flat, open grassland or gentle slopes and sparse-shrub land ecosystems. This species prefers annual or perennial grasslands, typically with sparse or nonexistent tree or shrub canopies; however, they also colonize debris piles and old pipes. In California, Burrowing Owl is found in close association with California ground squirrels. Burrowing Owl exhibits high site fidelity and usually uses the. abandoned burrows of ground squirrels for shelter and nesting. Burrowing Owl is unlikely to occur within the Project Area because most of the property has been developed, paved, and/or landscaped with lawn grass and ornamental plants. However, numerous occurrences of this species have been documented in grassy vacant lots and open areas just east of the site (Figure 5). The Project Area is mostly surrounded by urban development and is not contiguous with large expanses of grassland that might encourage owls to disperse to the site. Only two open areas are present within the Project Area: North Field and West Field. North Field is disced, a management practice that discourages use by wildlife, particularly burrowing owls. West Field is maintained for recreation, and appears to have a high amount of human activity that would deter wildlife use. No ground squirrels or suitable owl burrows were seen anywhere within the Project Area. California tiger salamander (Ambystoma caiiforniense), Federal Threatened, CDFG Species of Concern. California tiger salamander (CTS) is restricted to grasslands and low-elevation foothill regions in California (generally under 1500 feet) where it uses seasonal aquatic habitats for breeding. The salamanders breed in natural ephemeral pools, or ponds that mimic ephemeral pools (stock ponds that go dry), and occupy substantial areas surrounding the breeding pool as adults. CTS spends most of its time in the grasslands surrounding breeding pools. It survives hot, dry summers by estivating (going through a dormant period) in refugia (such as burrows created by ground squirrels and other mammals and deep cracks or holes in the ground) where the soil atmosphere remains near the water saturation point. During wet periods, salamanders may emerge from refugia and feed in the surrounding grasslands. CTS is unlikely to occur within the Project Area. CTS have been documented east of the Project Area, as close as two miles away (CNDDB, 2007). However, similar to Burrowing Owl, this species requires relatively undisturbed grassland for foraging and plentiful rodent burrows for shelter. Sites that have been disturbed by development and earth-moving activities are not likely to contain CTS unless CTS can re-colonize the area through a corridor that connects to an adjacent population. In addition, CTS requires nearby pools that hold standing water for at least a few months in order to breed. None of these components are present within or adjacent to the Project Area, which has been thoroughly disturbed by earth-moving activities and is nearly surrounded by urban development. California red-legged frog (Rana aurora draytonii), Federal Threatened, CDFG Species of Concern. California red-legged frog (CRLF) is dependent on suitable aquatic, estivation, and upland habitat. During periods of wet weather, starting with the first rainfall in late fall, red-legged frogs disperse away from their estivation sites to seek suitable breeding habitat. Aquatic and breeding habitat is characterized by dense, shrubby, riparian vegetation and deep, still or slow- movingwater. Breeding occurs between late November and late April. California red-legged frog estivates during the dry months in small mammal burrows, moist leaf litter, incised stream channels, and large cracks in the bottom of dried ponds. 15 CRLF is unlikely to occur within the Project Area. Alamo Creek, which passes along the western edge of the Project Area, is the only feature that might attract or support this species. However, CRLF has not been documented in Alamo Creek within five miles of the Project Area. The Project ~°' Area itself is heavily developed and disturbed, has high human traffic, does not contain aquatic ; habitat, and does not contain suitable upland estivation habitat or dispersal corridors. The Project Area is nearly surrounded by urban development and is not likely to ever constitute habitat for this ~° species. Pallid bat (Antrozous pallidus). CDFG Species of Special Concern, WBWG High Priority. „~ Pallid bat is found in a variety of low elevation habitats throughout California. It selects a variety of day roosts including rock outcrops, mines, caves, hollow trees, buildings, and bridges. Night roosts are usually found under bridges, but also in caves, mines, and buildings. Pallid bat is ,,,R, sensitive to roost disturbance. Unlike most bats, pallid bat primarilyfeeds on large ground-dwelling arthropods, and many prey are taken on the ground (Zeiner, et al. 1990). Pallid bat has a moderate potential for occurrence within the Project Area. Buildings and other structures within the Project Area may provide marginal habitat for this, species. However, most buildings observed during the September 2007 site visit were in good repair and had few openings or crevices for bats to utilize. Levels of human activity within the housing development are high, and this would likely discourage bats from roosting in this area. Marginal foraging habitat is present along the creek corridor to the west and over grassy areas to the east. A recent occurrence of pallid bat has been documented two miles southwest of the Project Area (CNDDB, 2007). Cautions taken for pallid bat would also be beneficial for other sensitive bats such as Yuma myotis (Myotis yumanensis). Loggerhead Shrike (Lanius iudovicianus). CDFG Species of Special Concern, USFWS Bird of Conservation Concern. Loggerhead Shrike is a common resident and winter visitor in lowlands and foothills throughout California. It prefers open habitats with scattered trees, shrubs, posts, fences, utility lines or other perches. Nests are usually built on a stable branch in a densely- foliaged shrub or small tree and are usually well-concealed. The highest densities occur in open- canopied valley foothill hardwood, valley foothill hardwood-conifer, valley foothill riparian pinyon- juniper, juniper, and desert riparian habitats. While this species eats mostly Arthropods, they also take amphibians, small to medium-sized reptiles, small mammals and birds. They are also known to scavenge on carrion. Loggerhead Shrike has a moderate potential for occurrence within the Project Area. Marginal foraging habitat exists in open areas within and adjacent to the property, and a number of trees and bushes would be suitable for nesting. "~ steelhead-Central California Coast (Oncorhynchus mykiss irideus). Federal Threatened. Central California Coast ESU includes all naturally spawned populations of steelhead (and their progeny) in California streams from the Russian River to Aptos Creek, and the drainages of San Francisco and San Pablo Bays eastward to the Napa River (inclusive), excluding the Sacramento- San Joaquin River Basin. steelhead typically migrate to marine waters after spending two years in freshwater, though they may stay up to seven. They then reside in marine waters for two or three years prior to returning to their natal stream to spawn as four- orfive-year-olds. steelhead adults typically spawn between December and June. In California, females typically spawn two times before they die. Preferred spawning habitat for steelhead is in perennial streams with cool to cold 16 .6 water temperatures, high dissolved oxygen levels and fast flowing water. Abundant riffle areas (shallow areas with gravel or cobble substrate) for spawning and deeper pools. with sufficient riparian cover for rearing are necessary for successful breeding. steelhead has no potential to occur within the Project Area since there are no creeks within the property. However, Alamo Creek is immediately west of the Project Area. This creek is a tributary to Arroyo de la Laguna Creek, which has been repeatedly surveyed with virtually no suggestion that this creek constitutes habitat for steelhead (Leidy et al., 2003). Arroyo de la Laguna is a tributary to Alameda Creek, which is thought of as habitat for this species although migration barriers prevent regular spawning (Gunther et aL, 2000). Nonetheless, steelhead should be considered in conjunction with land management on properties adjacent to watersheds that could contain this species. Water quality can be impacted by runoff from these properties, and this decreases habitat value for fish. The quality of runoff that enters creeks from adjacent properties such as the Project Area should be carefully controlled through the use of erosion control plans, best management practices (BMPs), and wastewater containment. 5.0 SUMMARY AND RECOMMENDATIONS No special status plant species of concern and no special status wildlife species were observed during the site assessment. One potentially sensitive plant community was identified within the Project Area. Two special status wildlife species have a moderate potential to occur within the Project Area. The following sections present recommendations for future studies and/or measures to avoid or reduce impacts to these species and sensitive habitats. 5.1 Biological Communities Most of the Project Area is either paved and developed, or comprised of ruderal herbaceous grassland, which is not a sensitive biological community. However, two small 250 square foot areas in the vicinity of the drain in West Field support wetland plants. This area should be further studied to determine whether or not it falls within the jurisdiction of the Corps under Section 404 of the Clean Water Act and RWQCB under the Porter Cologne Act and Section 401 of the Clean Water Act. 5.2 Special Status Plant Species No further special status plant surveys are recommended for the Project Area. Of the 35 special status plant species known to occur in the vicinity of the Project Area, two species were determined to have some potential to occur in the Project Area. Only one of the two species, California black walnut, was observed in the Project Area, but was a naturalized individual, which does not require protection. Most of the species found in the review of background literature occur in high quality cismontane woodland, chaparral, orvalley and foothill grassland habitat, none of which are present in the Project Area. 5.3 Special Status Wildlife Species A small number of wildlife concerns for development within the Project Area can be addressed through the use of mitigation measures. No special status species are known to be present or 17 ~5~ ~ ~o~ - have a high potential to occur within the Project Area. Loggerhead Shrike and pallid bat were determined to have a moderate potential for occurrence. Wildlife concerns can be summarized as follows: Nesting birds, including special-status birds such as Loggerhead Shrike, maybe impacted by tree and brush removal or development within the breeding season from February to August. Bats such as pallid bat may be impacted by building demolition or tree removal from November through August. Steelhead and other fish could be impacted by a decrease in creek water quality as a result of surface runoff. Nesting birds may be impacted by construction during the bird breeding season from February to August. As mentioned in Section 2.1, the Migratory Bird Treaty Act protects almost all species of nesting birds, including common species. Special status birds receive additional protection. Ideally, the clearing of vegetation and the initiation of construction can take place in the non- breeding season between September and January. If these activities cannot be done in the non- breeding season, a qualified biologist shall perform pre-construction bird surveys within 30 days of the onset of construction or clearing of vegetation. If nesting birds are discovered in the vicinity of planned development, it will likely be necessary to establish buffer areas around the nest until the nest is vacated. The size of the buffer would be dependent on the particular species of nesting bird. Disturbance of trees, buildings, and other structures in the Project Area may impact bat roosts. As e with birds, bat roost sites can change from year to year, so pre-construction surveys are usually .~ necessary to determine the presence or absence of bat roost sites in a given area. Pre- construction bat surveys do not need to be performed if building demolition work is conducted `~` between September 1 and October 31, after young have matured and prior to the bat hibernation ,~. period. However, if it is necessary to disturb potential bat roost sites between November 1 and August 31, pre-construction surveys will be necessary. Pre-construction bat surveys normally involve surveying trees, rock outcrops, bridges, and buildings subject to removal or demolition for evidence of bat use (guano accumulation, or acoustic or visual detections). If evidence of bat use is found, then biologists should conduct a minimum of three acoustic surveys between April and ~~ September under appropriate conditions using an acoustic detector to determine whether a site is occupied. If bats are found, they should be excluded from occupied roosts in the presence of a "~` qualified biologist during the fall prior to construction. ,w Runoff from urban development in the Project Area may contribute to degradation of a watershed that may comprise habitat for steelhead and other sensitive fish. In order to avoid sedimentation in the Alameda Creek watershed, thorough erosion control measures should be designed and implemented during construction activities. Such measures are typically required as part of a SWPPP that is submitted while obtaining a grading permit. Protective measures to avoid wildlife impacts can be summarized as follows: Initiation of construction and tree and brush removal should be done during the non- breeding season for birds between September and January. If vegetation removal occurs outside this time period, pre-construction nesting bird surveys shall be performed by a qualified biologist. 18 ,¢~ ~~' ~' Initiation of construction, tree removal, and building demolition should be performed in September or October to avoid impacting bats. If all construction activities can not be confined to this period, preconstructionsuweys shall be performed by a qualified biologist. Design and implement a thorough erosion control plan to avoid indirectly impacting steelhead habitat. 6.0 POTENTIAL IMPACTS AND MITIGATION The proposed project involves the conversion of 25 acres of low-income housing units and ruderat plant communities to a higher density low-income housing development. The proposed conversion project would retain the redwoods circling North Mariposa. The Project Area is completely fenced and surrounded by rural development and roadways, meaning that no significant impacts to wildlife migratory corridors are likely to occur. The potential presence of most special status wildlife species is considered unlikely due to degraded habitat conditions in the Project Area, absence of suitable breeding habitat, and human disturbance in the vicinity of the site due to surrounding residential development. It is likely that no wetlands or potentially jurisdictional waters are present in the Project Area, although the small cluster of wetland plants in West Field (Figure 3) merits further investigation. No significant impacts to special status amphibians, reptiles or invertebrates are anticipated as a result of the proposed project. The project has the potential to impact one special status bat species and one special status bird species. The project also has the potential to impact nesting birds protected under the Migratory Bird Treaty Act and to degrade the quality of a nearby creek that maybe upstream from steelhead habitat. The project's potential to impact Dublin heritage trees was addressed in a separate report (gabby 2007). A single heritage redwood tree was identified in the impacted portion of the Project Area. Potential impacts and mitigation measures outlined in a format following the CEQA checklist are discussed below. With the following suggested mitigation measures, impacts to these biological resources would be reduced to less-than-significant. 6.1 Special Status Species Would the project have a substantial adverse effect, either directly or indirectly or through habitat modifications, on any species identified as a candidate, sensitive, or special status species in local or regional plans, policies, or regulations, or by the California Department of Fish and Game or U.S. Fish and Wildlife Service? 6.1.1 Impacts to Special Status Species Wildlife Potential impacts to wildlife as a result of development within the Project Area are summarized below. Amore detailed description of these impacts appears in Section 5.3. Nesting birds, including special-status birds such as Loggerhead Shrike, may be impacted 19 ~~~ ~ ~ ~ ~~ by tree and brush removal or development within the breeding season from February to . August. Bats such as pallid bat may be impacted by building demolition or tree removal from '"~ November through August. W Steelhead and other fish could be impacted by a decrease in creek water quality as a result of surface runoff. ..~ Plants No special-status plants are determined to be present in the Project Area. Project construction could commence with no further mitigation with respect to special status plants. 6.1.2 Suggested Mitigation Protective measures to avoid wildlife impacts are summarized below. Amore detailed description of mitigation measures can be found in Section 5.3. Initiation of construction and tree and brush removal should be done during the non- breeding season for birds between September and January. If vegetation removal outside this time period cannot be avoided, pre-construction nesting bird surveys shall be performed by a qualified biologist. Initiation of construction, tree removal, and building demolition should be performed in September or October to avoid impacting bats. If all such work cannot be confined to this time period, pre-construction bat surveys shall be performed by a qualified biologist. Design and implement a thorough erosion control plan to avoid indirectly impacting steelhead habitat. 6.2 Riparian Habitat Would the project have a substantial adverse effect on riparian habitat or other sensitive natural community identified in local or regional plans, policies, or regulations, or by the California Department of Fish and Game or U.S. Fish and Wildlife Service? 6.2.1 Impacts Most of the Project Area is comprised of ruderal habitat which is not considered sensitive habitat under CEQA. The only riparian habitat observed was adjacent to the Project Area on its western flank, where Alamo Creek bends around the site. This riparian area is already fenced off from the Project Area, providing a buffer zone that satisfies the City of Dublin's Ordinance No. 52-87 setback requirements for open channel watercourses. 6.2.2 Suggested Mitigation No significant impacts to riparian habitat are anticipated as a result of the proposed project, thus no mitigation is required. 20 '~` ~=: ~~ r~ ~p ~ ~~ ~ ~.~. 6.3 Section 404 Wetlands Would the project have a substantial adverse effect on federally protected wetlands as defined by Section 404 of the Clean Water Act (including, but not limited to, marsh, vernal pool, coastal, etc.) through direct removal, filling, hydrological interruption, or other means? 6.3. i Impacts With the possible exception of the small area of wetland plants in West Field, there are no other expected impacts to federally protected wetlands or waters. 6.3.2 Suggested Mitigation Prepare jurisdictional wetland delineation to determine presence or absence of Section 404 wetlands on-site. If it is confirmed that there are no jurisdictional wetlands, then no mitigation will be required. Erosion control measures shall be implemented to reduce or prevent sediment and pesticide run-off from entering Alamo Creek. An Erosion Control Plan and Storm Water Pollution Prevention Plan shall be prepared for this project. 6.4 Wildlife Corridors and Habitat Would the project interfere substantially with the movement of any native resident or migratory fish or wildlife species or with established native resident or migratory wildlife corridors, or impede the use of native wildlife nursery sites? 6.4.1 Impacts Development within the Project Area will not substantially impact wildlife habitat or movement corridors. The majority of the Project Area is urban, having been disturbed, graded, developed, landscaped, paved, and otherwise modified and occupied by humans, and therefore does not comprise valuable habitat for wildlife species. The Project Area is also fenced on nearly all sides, so it is unlikely that any wildlife corridors go through the site. A vacant lot in~ the north of the Project Area (North Field), provides open space between grassy vacant lots to the east and a narrow wooded creek corridor to the west, beyond which is open grassland in the north Dublin hills. This is one of only a few places where wildlife could potentially move between open space east of Dougherty Road and open space west of a belt of urban development along Dougherty Road. However, this does not appear to be ahigh-value or regularly used wildlife corridor due to fences on both sides of the bike path that runs along the western edge of the Project Area. High levels of human activity in this area and traffic on Dougherty Road are likely to discourage wildlife from using this route, along with the fact that the corridor is already blocked by fences. Alamo Creek to the west of the Project Area could be considered a tributary to a native wildlife 21 +~ ~(oZ ~ ~n1 nursery, as juvenile steelhead may be present further downstream. Polluted surface runoff entering this creek could impact habitat quality for steelhead downstream. As mentioned in Section 6.1.1, the Project Area may also provide rearing habitat for juvenile birds and bats in trees and man-made structures. 6.4.2 Suggested Mitigation Since the open space at the north end of the Project Area does not appear to be a practical or substantial wildlife corridor, no mitigation measures are suggested. Mitigation measures for birds, bats, and steelhead are provided in Section 6.1.2 and 6.3.2. 6.5 Local Policies Would the project conflict with any local policies or ordinances protecting biological resources, such as a tree preservation policy or ordinance? ~: 6.5.1 Impacts '~ Some mature native trees ,are present in the Project Area that are protected under the City of Dublin Heritage Tree Ordinance. This ordinance prohibits tree removal without a permit from any property within the City of Dublin, of any oak, bay, cypress, maple, redwood, buckeye, and sycamore tree having a trunk or main stem of twenty-four (24) inches or greater. The majority of the native trees in the project vicinity occur in the riparian corridor along Alamo Creek that is not part of the Project Area and is fenced off from it. The circle of redwoods lining the west end of North Mariposa will be retained, and there are several heritage-sized trees within this grouping. The project arborist determined that only one heritage tree, a 26-inch dbh redwood, will be impacted by the project. 6.5.2. Suggested Mitigation The project applicant shall submit the arborist's findings and obtain a tree removal permit from the City for any impacted heritage trees (currently projected to be just a single tree). The applicant shall install replacement trees for the removal of any heritage tree in the Project Area at a ratio to be determined by the City and monitor the survival of the replacement trees for a period of three years. Any trees that die during the monitoring period will be replaced and monitored for three years. Heritage trees preserved in the Project Area shall be surrounded by protective fencing during project construction. This fencing will be installed at least ten feet outside the dripline of the protected trees and no construction material or chemicals will be stored within the protective fencing. The City may require additional mitigation for impacts to other native trees including oaks. These mitigation measures may include but are not limited to compensatory tree replacement for impacts to native oaks and monitoring the success of replacement tree plantings. If such mitigation is required by the City the applicant will comply with such measures. This will reduce impacts to 22 ~. 3{~~ Z~ x'01 existing native trees to a less than significant level. 6.6 Conservation Plans Would the project conflict with the provisions of an adopted Habitat Conservation Plan, Natural Community Conservation Plan, or other approved local, regional, or state habitat conservation plan? 6.6.1 Impacts No impact. The project will not conflict with the provisions of an adopted Habitat Conservation Plan (HCP), Natural Community Conservation Plan (NCCP), or other approved local, regional, or state habitat conservation plan. 6.6.2 Suggested Mitigation No mitigation is required as no HCPs, NCCPs, or other conservation plans apply to the Project Area. 7.0 REFERENCES Babby, D. L., 2007. An Arborist Report for the Arroyo Vista Housing Project in Dublin, California. California Department of Fish and Game. 2007. Natural Diversity Database, Wildlife and Habitat Data Analysis Branch. Sacramento. California Native Plant Society. 2007. Electronic Inventory of Rare and Endangered Vascular Plants of California. California Native Plant Society, Sacramento, California. City of Dublin, California. 2007. City of Dublin Municipal Code, Chapter 5.60: Heritage Trees. http://www.codepublishing.com/ca/dublin.html Environmental Laboratory. 1987. Corps of Engineers Wetlands Delineation Manual. Department of the Army, Waterways Experiment Station, Vicksburg, Mississippi 39180-0631. Gunther, A.J., J. Hagar, and P. Salop. 2000. An assessment of the potential for restoring a viable steelhead trout population in the Alameda Creek watershed. Alameda Creek Fisheries Restoration Workgroup. Prepared by Applied Marine Sciences LLC and Hagar Environmental Science. Hickman, J.C. (ed.) 1993. The Jepson manual: higher plants of California. University of California Press. Holland, R. F. 1986. Preliminary Descriptions of the Terrestrial Natural Communities of California. Prepared for the California Department of Fish and Game, Sacramento, California Jennings, Mark R. 2004. An Annotated Check List of Amphibians and Reptile Species of ... 23 ~~ ~ ~~ ~ 01 California and Adjacent Waters. Third, revised edition. California Department of Fish and Game. Leidy, R.A., G.S. Becker, and B.N. Harvey. 2003. Historical Distribution and Current Status of Steelhead (Oncorhynchus mykiss), Coho Salmon (O. kisutch), and Chinook Salmon (O. tshawytscha) in Streams of the San Francisco Estuary, California. US EPA and Center for Ecosystem Management and Restoration. Natural Resources Conservation Service (NRCS). 2002. Field Indicators of Hydric Soils in the United States, version 5.0. G.W. Hurt, P.M. Whited, eds. USDA, NRCS in cooperation with the National Technical Committee for Hydric Soils, Fort Worth, TX. Reed, Jr., Porter B. 1988. National List of Plant Species That Occur in Wetlands: National Summary. U.S. Fish & Wildlife Service. Biol. Rep. 88 (24). 244 pp. Stebbins, R.C. A Field Guide to Western Reptiles and Amphibians, 3'~ Edition. 2003. The Peterson Field Guide Series, Houghton Mifflin Company, New York. U.S. Department of Agriculture, Soil Conservation Service.1966. Soil Survey of Alameda County. California. In cooperation with the University of California Agricultural Experiment Station. United States Fish and Wildlife Service (USFWS). 2007. Quadrangle Species Lists, Sacramento Fish and Wildlife Service. Zeiner, D. C., W. F. Laudenslayer, Jr., K. E. Mayer, and M. White. 1990. California's Wildlife, Volume I-III: Amphibians and Reptiles, Birds, Mammals. California Statewide Wildlife Habitat Relationships System, California Department of Fish and Game, Sacramento. 24 "~ Y~3 ~~~ ~ ~o i APPENDIX A LIST OF OBSERVED PLANT AND ANIMAL SPECIES ~!a ~ °~ Appendix A. List of Observed Plan# and Animal Species in the Project Area from the site assessment conducted on September 20, 2007_ SCIENTIFIC NAME . COMMON NAME PLAI3TS Aesculus califomica California buckeye Arctotheca calendula capeweed Argyranthemum sp. daisy, marguerite Avena fatua wild oat Avena barbata slender wild oat Baccharis pilularis coyote brush Brassica nigra black mustard Bromus diandrus ripgut brome Bromus catharticus rescue grass Carpobrotus edulis iceplant Centaurea solstitialis yellow star thistle Convolvufus arvensis field bindweed Conyza sp. horseweed Cotoneaster sp. cotoneaster Cynodon dactylon Bermuda grass .Cyperus eragrostis tall flat-sedge Dittrichia graveolens stinkwort Epilobium ciliatum slender willowherb Eucalyptus sp. gum Foeniculum vutgare sweet fennel Fuchsia sp. fuchsia Geranium dissectum dissected geranium Hedera helix English ivy Hordeum marinum Mediterranean barley Juglans californica Califomia black walnut Lactuca serriola prickly lettuce Lavandu/a sp. lavender Liquidambar styracif/ua sweetgum Lolium mu/tif/orum Italian rye grass Lotus cornicu/afus bird's foot trefoil Ma/va nicaeensis bull mallow Medicago polymorpha bur clover Mentha pulegium pennyroyal Mentha sp. mint Paspa/um dilatatum dallis grass Phalaris aquatics Harding grass Picris echioides bristly ox tongue Pious radiata Monterey pine Pious sp. pine Plantago /anceolata narrowleaf plantain Po/ygonum arenastrum oval leaf knotweed Pyracantha sp. firethorn Quercus agrifolia coast live oak Quercus /obata valley oak Raphanus sativus wild radish Rosa sp. rose Rumex crispus curly dock Salix sp. willow, Sa/so/a tragus tumbleweed Scirpus californicus California bulrush Sequoia sempervirens redwood Sifybum marianum milk thistle Taraxacum officina/e common dandelion Tribu/us terrestris puncture vine Trifolium fragiferum strawberry clover Tropaeolum majus ~ garden nasturtium ~~-~ ~a- Vicia saliva common vetch Vinca major periwinkle Vitis sp. grape Xanthium strumariurn rough cockle-bur Zantedeschia aefhiopica calla lily wi~~lFE Anas platyrhynchos Mallard Aphelocoma califomica Western Scrub Jay Buteo lineatus Red-shouldered Hawk Calypte anna Anna's Hummingbird Canis lupus familiaris domestic dog Carpodacus mexicanus House Finch Corvus brachyrhynchos American Crow Falco sparverius American Kestrel Fells silvestris talus domestic cat Megeagris gallopavo Wild Turkey Microtus sp. vole {burrows) Picoides nuttallii Nuttall's Woodpecker Pipilo crissatis California Towhee Procyon lotor raccoon {scat) Stumus vulgaris European Starling Thomomys bottae Bona's pocket gopher {burrows) Zenaida macroura Mourning Dove APPENDIX B POTENTIAL FOR SPECIAL STATUS PLANT AND WILDLIFE SPECIES TO OCCUR IN THE PROJECT AREA Appendix B. Potential for Special Status Plant and Wildlife Species to Occur in the Project Area. List compiled from a September 2007 search of the California Department of Fish and Game Natural Diversity w Database (CNDDB), U.S. Fish and Wildlife Service.(USFWS) Species Lists, and California Native Plant Society (GNPs) Electronic Inventory search of the Dublin, Diablo, Tassajara, Livermore, La Costa Valley, Niles, Newark, Hayward, and Las Trampas Ridge USGS 7.5' quadrangles. A review of other CDFG lists and publications y (Jennings and Hayes 1994, Zeiner et al. 1990) was also conducted. SPECIES STATUS* HABITAT POTENTIAL FOR OCCURRENCE Mammals salt-marsh wandering shrew Sorex vagrans halicoetes pallid bat Antrozous pallidus CSC Salt marshes of the south arm of San Francisco Bay. Medium high marsh 6 to 8 feet above sea level where abundant driftwood is scattered among Salicornia. CSC, WBWG Occupies a variety of habitats at low elevation including grasslands, shrublands, woodlands, and forests. Most common in open, dry habitats with rocky areas for roosting. No Potential. Salt marsh habitat not present within the Project Area. Moderate Potential. This species may be somewhat tolerant of human presence and may find roosting habitat in isolated trees, buildings, or other structures. Townsend's big-eared bat CSC, WBWG Primarily found in rural settings in Unlikely. High levels of Corynorhinus townsendii a wide variety of habitats human activity in and including oak woodlands and around the buildings and mixed coniferous-deciduous general Project Area are forest. Day roosts highly likely to deter this associated with caves and mines. species.. Very sensitive to human disturbance. San Joaquin kit fox Vulpes macrotis mutica American badger Taxidea taxus Birds Cooper's Hawk Accipiter cooperii FE, ST, RP Annual grasslands or grassy open stages with scattered shrubby vegetation. Need loose-textured sandy soils for burrowing, and suitable prey base. CSC CSC Most abundant in drier open stages of most shrub, forest, and herbaceous habitats, with friable soils. Requires friable soils and open, uncultivated ground. Preys on burrowing rodents. Associated with open or interrupted woodland and riparian habitats in the Coast ranges and foothills surrounding the Central Valley. Nest sites mainly in riparian growths of deciduous trees, as in canyon bottoms on river flood-plains; also nests in live oaks. Unlikely. The Project Area is surrounded by urbanization and does not contain suitable foraging or burrowing habitat for this species. Unlikely. The few portions of open ground within the Project Area that might support this species have been disced or heavily modified. Unlikely. This species may utilize the riparian corridor to the west but is unlikely to nest or forage within the Project Area. SPECIES STATUS* HABITAT POTENTIAL FOR OCCURRENCE Sharp-shinned Hawk CSC This species is a fairly common Unlikely. This species Accipiter striatus migrant and winter visitor may utilize the riparian throughout California and is found corridor to the west but is in a variety of habitats, especially unlikely to nest or forage woodlands. It usually nests in within the Project Area. dense small-tree stands of conifers near water. Preferred roost sites are within intermediate to high-canopy forest areas. Golden Eagle BCC, CSC, (Nesting and wintering) rolling No Potential. Open, Aquila chrysaetos CFP, CDF foothills mountain areas, isolated habitat for nesting sensitive, sage-juniper flats, desert. or foraging is not present BLM sensitive Cliff-walled canyons provide within the Project Area. nesting habitat in most parts of range; also, large trees in open areas. Ferruginous Hawk BCC, CSC, (Wintering) Frequents open Unlikely. Typical open Buteo regalis BLM sensitive grasslands, sagebrush flats, foraging habitat for this desert scrub, low foothills species is not present surrounding valleys and fringes of within the Project Area. pinyon-juniper habitats. Preys on lagomorphs, ground squirrels and mice. Population trends may follow lagomorph population cycles. Northern Harrier CSC (Nesting) Nests and forages in Unlikely. Typical Circus cyaneus grassland habitats, usually in grassland/marsh nesting association with coastal salt and and foraging habitat for freshwater marshes. Nests on this species is not present ground in shrubby vegetation, within the Project Area. usually at marsh edge; nest built of a large mound of sticks in wet areas. May also occur in alkali desert sinks. White-tailed Kite CFP Year-long resident of coastal and Unlikely. This species E/anus /eucurus valley lowlarids; rarely found away may utilize the riparian from agricultural areas. Preys on corridor to the west but is small diurnal mammals and unlikely to nest or forage occasional birds, insects, reptiles, within the Project Area. and amphibians. Prairie Falcon BCC, CSC (Nesting) inhabits dry, open Unlikely. Typical Falco mexicanus terrain, either level or hilly. breeding and foraging Breeding sites located on cliffs. habitat for this species is Forages far afield, even to not present within the marshlands and ocean shores. Project Area. American Peregrine Falcon FD, SE, CFP, Winters throughout Central Unlikely. Typical Falco peregrinus anatum BCC Valley. Requires protected cliffs breeding and foraging and ledges for cover. Feeds on a habitat for this species is variety of birds, and some not present within the mammals, insects, and fish. Project Area. ~ ~a ~~ ~. a SPECIES STATUS* HABITAT POTENTIAL FOR OCCURRENCE Western Snowy Plover FT, CSC, (Nesting} Federal listing applies No Potential. This Charadrius alexandrinus BCC, RP only to the Pacific coastal species is generally nivosus population. Found on sandy restricted to coastal areas. beaches, salt pond levees and shores of large alkali lakes. Requires sandy, gravelly or friable soils for nesting. Burrowing Owl CSC, BCC Frequents open grasslands and No Potential. Burrow Athene cunicu/aria shrublands with perches and habitat not present within burrows. Preys upon insects, the Project Area. small mammals, reptiles, birds, Frequent human, dog, and and carrion. Nests and roosts in ,cat disturbance is likely to old burrows of small mammals. deter this species. Project Area is fragmented isolated from appropriate habitat. Loggerhead Shrike BCC, CSC Inhabits broken woodlands, Moderate Potential. Lanius ludovicianus savannah, pinyon-juniper, Joshua Marginal foraging and tree, and riparian woodlands, nesting habitat for this desert oases, scrub and washes. species may be present Prefers open country for hunting, within the Project Area. with perches for scanning, and fairly dense shrubs and brush for nesting. California Horned Lark CSC Coastal regions, chiefly from Unlikely. Grassland Eremophila a/pestris actia Sonoma County to San Diego habitat within the Project County. Also main part of San Area is likely too minimal, Joaquin Valley and east to disturbed, and isolated to foothills. Short-grass prairie, be utilized by this species. "bald" hills, mountain meadows, open coastal plains, fallow grain fields, alkali flats. Bank Swallow ST Migrant in riparian and other No Potential. Suitable Riparia riparia lowland habitats in western bank habitat not present California. Nests in riparian areas within the Project Area. with vertical cliffs and bands with fine-textured or sandy soils in which to nest. Yellow Warbler CSC Yellow warblers prefer dense Unlikely. This species Dendroica petechia brewsteri riparian vegetation for breeding. may utilize the riparian Yellow warbler populations have corridor to the west but is declined due to brood parasitism unlikely to nest or forage bybrown-headed cowbirds within the Project Area. (Mo/othrus ate and habitat destruction. Diet is primarily insects supplemented with berries. SPECIES STATUS* HABITAT ~~~ ~~ ~ d a POTENTIAL FOR OCCURRENCE .. Saltmarsh Common Yellowthroat Geothlypis trichas sinuosa Alameda Song Sparrow Me/ospiza me/odia pusillu/a I Tricolored Blackbird Age/aius tricolor Reptiles and Amphibians California tiger salamander Ambystoma californiense California red-legged frog Rana aurora draytonii foothill yellow-legged frog Rana boylii western pond turtle Actinemys marmorata CSC, BCC BCC, CSC CSC, BCC FT, CSC FT, CSC, RP CSC CSC Frequents low, dense vegetation near water including fresh to saline emergent wetlands. Brushy habitats used in migration. Forages among wetland herbs and shrubs for insects primarily. Resident of salt marshes bordering south arm of San Francisco Bay. Inhabits Salicornia marshes; nests low in Grindelia bushes (high enough to escape high tides) and in Salicornia. Usually nests over or near freshwater in dense cattails, tules, or thickets of willow, blackberry, wild rose or other tall herbs. Inhabits annual grass habitat and mammal burrows. Seasonal ponds and vernal pools crucial to breeding. Lowlands and foothills in or near permanent sources of deep water with dense, shrubby or emergent riparian vegetation. Requires 11 to 20 weeks of permanent water for larval development. Must have access to estivation habitat. Found in or near rocky streams in a variety of habitats. Feed on both aquatic and terrestrial invertebrates. A thoroughly aquatic turtle of ponds, marshes, rivers, streams and irrigation ditches with aquatic vegetation. Need basking sites and suitable (sandy banks or grassy open fields) upland habitat for egg-laying. Unlikely. This species may utilize the riparian corridor to the west but is ~' unlikely to nest or forage within the Project Area. ~. No Potential. The Project ~, Area is far from the salt marsh habitat of the South Bay. ~^ Unlikely. This species may utilize the riparian corridor to the west but is ~ unlikely to nest or forage within the Project Area due to lack of suitable habitat. Unlikely. Project Area '" and surroundings have been fragmented, graded, and heavily altered. ~, Suitable burrow and breeding habitat not present. Unlikely. Breeding habitat not present within '~ Project Area. Upland estivation and dispersal ~" habitat not observed. This species has some potential to occur within ,~ the creek corridor to the west; however, it is - unlikely to ever occur within the Project Area. "~ No Potential. Aquatic habitat not present within the Project Area. ~' No Potential. Aquatic ~ habitat not present within the Project Area. ,^ SPECIES STATUS* HABITAT POTENTIAL.FOR OCCURRENCE Alameda whipsnake Masticophis /ateralis euryxanthus fishes Central California Coastal steelhead Oncorhynchus mykiss irideus Invertebrates Conservancy fairy shrimp Branchinecta conservatio longhorn fairy shrimp Branchinecta longiantenna vernal pool fairy shrimp Branchinecta /ynchi vernal pool tadpole shrimp Lepidurus packardi FT, ST Inhabits chaparral and foothill- hardwood habitats in the eastern Bay Area. Prefers south-facing slopes and ravines with rock outcroppings where shrubs form a vegetative mosaic with oak trees and grasses and small mammal burrows provide basking and refuge. FT, CSC Adults migrate upstream to spawn in cool, clear, well- oxygenated streams. Juveniles remain in fresh water for 1 or more years before migrating downstream to the ocean FE, SSI, RP FE, SSI, RP FT, SSI, RP FE, SSI, RP Endemic to the grasslands of the northern two-thirds of the Central Valley; found in large, turbid pools. Inhabit astatic pools located in swales formed by old, braided alluvium; filled by winter/spring rains, last until June. Endemic to the eastern margin of the central coast mountains in seasonally astatic grassland vernal pools. Inhabit small, clear-water depressions in sandstone and clear-to-turbid clay/grass-bottomed pools in shallow swales. Endemic to the grasslands of the Central Valley, central coast mountains, and south coast mountains, in astatic rain-filled pools. Inhabit small, clear-water sandstone-depression pools and grassed swale, earth slump, or basalt-flow depression pools. Inhabits vernal pools and swales in the Sacramento Valley containing clear to highly turbid water. Pools commonly found in grass bottomed swales of unplowed grasslands. Some pools are mud-bottomed and highly turbid. No Potential. Grassland habitat with rock outcrops not present within Project Area. Site is isolated and disturbed. No Potential. Aquatic habitat not present within the Project Area. However, the Project Area is within the Alameda Creek watershed, which could be considered steelhead habitat far downstream. No Potential. Seasonal wetland depressions and vernal pools required for this species are not present within the Project Area. No .Potential. Seasonal wetland depressions and vernal pools required for this species are not present within the Project Area No Potential. Seasonal wetland depressions and vernal pools required for this species are not present within the Project Area No Potential. Seasonal wetland depressions and vernal pools required for this species are not present within the Project Area ~~5 ~~ gbl SPECIES STATUS* HABITAT -,., POTENTIAL FOR OCCURRENCE ,, California linderiella SSI Seasonal pools in unplowed No Potential. Seasonal g Linderiella occidentalis grasslands with old alluvial soils wetland depressions and underlain by hardpan or in vernal pools required for sandstone depressions. Water in this species are not the pools has very low alkalinity, present within the Project ~`$ conductivity, and TDS. Area w~ valley elderberry longhorn FT, SSI, RP Occurs only in the central valley No Potential. Elderberry k beetle of California, in association with host plant not observed Desmocerus californicus blue elderberry (Sambucus within the Project Area. , dimorphus mexicana). Prefers to lay eggs in elderberrry 2 to 8 inches in ~> diameter; some preference shown for "stressed" elderberry. ~"' Bay checkerspot butterfly FT, SSI, RP Restricted to native grasslands on No Potential. Project ~` Euphydryas editha bayensis outcrops of serpentine soil in the Area is fragmented and vicinity of San Francisco Bay. near areas of high human ~ P/antago erecta is the primary traffic. Host plant not host plant; Orthocarpus . observed during densif/orus and O. purpurscens September 2007 site visit. are the secondary host plants. monarch butterfly SSI Winter roost sites extend along Unlikely. Project Area is Danaus p/exippus the coast from northern fragmented and near '~'" Mendocino to Baja California, areas of high human ,~ Mexico. Roosts located in traffic. wind-protected tree groves ~, (eucalyptus, Monterey pine, Monterey cypress), with nectar and water sources nearby. Plants ~~,. large-flowered fiddleneck FE, SE, List Cismontane woodland and valley No Potential. The Project Amsinckia grandif/ora 1 B and foothill grassland. 275-550 m. Area does not contain Blooms April-May. suitable habitat for this , ~, species. . : bent-flowered fiddleneck List 1 B Coastal bluff scrub, cismontane No Potential. The Project "~ Amsinckia lunaris woodland, and valley and foothill Area is a developed site; it ~.. grassland. 3-500 m. Blooms does not contain suitable March-June. habitat for this species. , slender silver-moss List 2 Broadleafed upland forest, lower No Potential. The Project Anomobryum ju/aceum montane coniferous forest, and Area does not contain North Coast coniferous forest. suitable habitat for this Found in damp rock and soil on .species. outcrops- usually roadcuts. 100- 1000 m. ~ Mt. Diablo manzanita List 1 B Chaparral on sandstone. 135- No Potential. The Project Arctostaphy/os auriculata 650 m. Blooms January-March. Area does not contain suitable habitat for this ,~ species. 3 ~~ ~~ ~ ~ I SPECIES STATUS* HABITAT POTENTIAL FOR OCCURRENCE Contra Costa manzanita List 1 B Chaparral on rocky soils. 500- No Potential. The Project Arctostaphylos manzanita 1100 m. Blooms January- Area does not contain ssp. laevigata February. suitable habitat for this species, and is not in the species' elevation range. alkali milk-vetch List 1 B Playas, valley and foothill No Potential. The Project Astraga/us tener var. tener grassland (on adobe clay), and Area does not contain vernal pools; often on alkaline suitable habitat for this soils. 1- 60m. Blooms March- species. June. heartscale List 1 B Chenopod scrub, meadows and No Potential. The Project Atriplex cordu/ata seeps, and valley and foothill Area is a developed site; it grasslands; often on saline or does not contain suitable alkaline soils. 1- 375 m. Blooms habitat for this species. April-October. brittlescale List 1 B Chenopod scrub, meadows and No Potential. The Project Atriplex depressa seeps, playas, valley and foothill Area is a developed site; it grasslands, and vernal pools; does not contain suitable often on alkaline, clay soils. 1- habitat for this species. 320 m. Blooms May-October. San Joaquin spearscale List 1 B Chenopod scrub, meadows and No Potential. The Project Atriplex joaquiniana seeps, playas, and valley and Area is a developed site; it foothill grasslands; often on does not contain suitable alkaline soils. 1- 835 m. Blooms habitat for this species. April-October. big scale balsamroot List 1 B Valley and foothill grasslands and No Potential. The Project Balsamorhiza macrolepis var. cismontane woodland; often on Area is a developed site; it macrolepis serpentinite soils. 90- 1400 m. does not contain suitable Blooms March-June. habitat for this species. round-leaved filaree List 1 B cismontane woodland and valley No Potential. The Project California macrophylla and foothill grasslands; often on Area is a developed site; it clay soils. 15- 1200 m. Blooms does not contain suitable March-May. habitat for this species. Mt. Diablo fairy-lantern List 1 B Chaparral, cismontane woodland, No Potential. The Project Calochortus pulchellus riparian woodland, and valley and Area is a developed site; it foothill grasslands. 30- 840 m. does not contain suitable Blooms April-June. habitat for this species. chaparral harebell List 1 B Chaparral; often on rocky and No Potential. The Project Campanula exigua serpentinite soils. 275- 1250 m. Area does not contain Blooms May-June. suitable habitat for this species. Congdon's tarplant List 1 B Valley and foothill grasslands; Unlikely. The Project Area Centromadia parryi ssp. often on alkaline soils. 1- 230 m. is a developed site; this congdonii Blooms May-October; species can be found in uncommonly in November. disturbed areas. ~~~~ ~~~~ ~o~ SPECIES STATUS* HABITAT POTENTIAL FOR OCCURRENCE palmate-bracted bird's-beak FE, SE, List Chenopod scrub and valley and No Potential. The Project Cordy/anthus pa/matus 1 B foothill grasslands; often on Area is a developed site; it alkaline soils. 5- 155 m. Blooms does not contain suitable May-October. habitat for this species. western leatherwood List 1 B Broadleafed upland forest, No Potential. The Project Dirca occidentalis closed-cone coniferous forest, Area does not contain chaparral, cismontane woodland, suitable habitat for this North Coast coniferous forest, species. riparian forest, and riparian woodland; often on mesic soils. 50- 395 m. Blooms January- March; uncommonly in April. Ben Lomond buckwheat List 1 B Occurs on sandy soils in No Potential. The Project Eriogonum nudum var. chaparral and cismontane Area does not contain decurrens woodland, and in maritime suitable habitat for this ponderosa pine sandhills soils in species. lower montane coniferous forest. 50- 800 m. Blooms June-October. Mt. Diablo buckwheat List 1 B Chaparral, coastal scrub, and No Potential. The Project Eriogonum truncatum valley and foothill grasslands; Area is a developed site; it usually on sandy soils. 3- 350 m. does not contain suitable Blooms April-September; habitat for this species. uncommonly in November and December. fragrant fritillary List 1 B cismontane woodland, coastal No Potential. The Project Fritillaria liliacea prairie, coastal scrub, valley and Area is a developed site; it foothill grassland; often does not contain suitable serpentinite. 3-410 m. Blooms habitat for this species. February-April. Diablo helianthella List 1 B Broadleafed upland forest, No Potential. The Project Helianthel/a castanea chaparral, cismontane woodland, Area is a developed site; it coastal scrub, riparian woodland, does not contain suitable and valley and foothill grassland. habitat for this species. 60- 1300 m. Blooms March-June. Brewer's western flax List 1 B Chaparral, cismontane woodland, No Potential. The Project Hesperolinon breweri and valley and foothill grassland; Area is a developed site; it often on serpentinite soils. 30- does not contain suitable 900 m. Blooms May-July. habitat for this species. Santa Cruz tarplant FT, SE, List Coastal prairie, coastal scrub, No Potential. The Project Ho/ocarpha macradenia 1 B and valley and foothill grassland; Area is a developed site; it often on clay, sandy soils. 10- 220 does not contain suitable m. Blooms June-October. habitat for this species. Northern California black List 1 B Riparian forest and riparian Unlikely. The Project Area walnut woodland. 0- 440 m. Blooms does not contain suitable Juglans hindsii April-May. habitat for native stands of this species; however, naturalized individuals may be present. ~ ~~ jS ~'O SPECIES STATUS* HABITAT POTENTIAL FOR OCCURRENCE Contra Costa goldfields FE, List 1 B cismontane woodland, alkaline No Potential. The Project Lasthenia conjugens playas, valley and foothill Area is a developed site; it grassland, and vernal pools; often does not contain suitable on mesic soils. 0- 470 m. Blooms habitat for this species. March-June. Hall's bush mallow List 1 B Chaparral and coastal scrub. 10- No Potential. The Project Malacothamnus hallii 760 m. Blooms May-September; Area does not contain uncommonly in October. suitable habitat for this species. San Antonio Hills monardella List 3 Chaparral and cismontane No Potential. The Project Monardella antonina ssp. woodland. 500 -1000 m. Blooms Area does not contain antonina June-August. suitable habitat for this species. robust monardella List 1 B Broadleafed upland forest, No Potential. The Project Monardella villosa ssp. chaparral (openings), cismontane Area is a developed site; it globosa woodland, coastal scrub, valley does not contain suitable and foothill grassland. 100-915 habitat for this species. m. Blooms June-July; uncommonly in August. Mt. Diablo phacelia List 1 B Chaparral and cismontane No Potential. The Project Phacelia phacelioides woodland; often on rocky soils. Area does not contain 500- 1370 m. Blooms April-May. suitable habitat for this species, and is not in the species' elevation range. hairless popcorn-flower List 1A Alkaline meadows and seeps and No Potential. The Project Plagiobothrys glaber coastal salt marshes and Area does not contain swamps. 15- 180 m. Blooms suitable habitat for this March-May. species and this species is presumed extinct in California. rock sanicle List 1 B Broadleafed upland forest, No Potential. The Project Sanicula saxatilis chaparral, and valley and foothill Area does not contain grassland; often on rocky soils. suitable habitat for this 620- 1175 m. Blooms April-May. species, and is not in the species' elevation range. most beautiful jewel-flower List 1 B Chaparral, cismontane woodland, No Potential. The Project Streptanthus a/bidus ssp. and valley and foothill grassland; Area is a developed site; it peramoenus often on serpentinite soils. 94- does not contain suitable 1000 m. Blooms April-September; habitat for this species. uncommonly in March and October. Mt. Diablo jewel-flower List 1 B Chaparral and valley and foothill No Potential. The Project Streptanthus hispidus grassland; often on rocky soils. Area does not contain 365- 1200 m. Blooms March- suitable habitat for this June. species. saline clover List 1 B Marshes and swamps, valley and No Potential. The Project Trifolium depauperatum var. foothill grassland with mesic/ Area is a developed site; it hydrophilum alkaline soils, and vernal pools. does not contain suitable 0-300 m. Blooms April -June. habitat for this species. 3~~ o~ Sod .. SPECIES STATUS* HABITAT POTENTIAL FOR s OCCURRENCE caper-fruited tropidocarpum List 1 B Valley and foothill grassland No Potential. The Project Tropidocarpum capparideum (alkaline hills). 1- 455 m. Blooms Area is a developed site; it March-April. does not contain suitable habitat for this species. oval-leaved viburnum List 2 Chaparral, cismontane woodland, No Potential. The Project «~z Viburnum ellipticum lower montane coniferous forest. Area does not contain "~` 215-1400 m. Blooms May-June. suitable habitat for this species. * Key to status codes: '" FE Federal Endangered ~. FT Federal Threatened .~ FD Federal Delisted BCC USFWS Birds of Conservation Concern `~` SE State Endangered ST State Threatened '" CSC CDFG Species of Special Concern CFP CDFG Fully Protected Animal CDF CDF Sensitive: warrant special protection during timber operations WBWG Western Bat Working Group High Priority species BLM Bureau of Land Management sensitive species `~' RP Recovery Plan (species is listed in a local recovery plan) SSI Special Status Invertebrate '" List 1A CNPS List 1A: Plants presumed extinct in California ;, List 1 B CNPS List 1 B: Plants rare, threatened or endangered in California and elsewhere List 2 CNPS List 2: Plants rare, threatened, or endangered in California, but more common elsewhere wM List 3 CNPS List 3: Plants about which CNPS needs more information (a review list) r~ ~`7~ ~,~- col APPENDIX C REPRESENTATIVE PROJECT AREA PHOTOGRAPHS 379 of ~o Above: View of North Field (facing east) Below: View of West Field (facing northwest} Photographs taken September 20, 2{}Q7. E3v L~i20hNrh:k: CO~Sii L".A~;:5 Wetland Plants in West Field Above: View facing northwest showing both clumps of plants Below: View facing north showing drain line and drain EN V!^n L~NMENTkt Cfy SV $'v`i,'kN?S Photographs taken September 20, 2007. ~` 1119 u=~ i ~s Above: Homes landscaped with ornamentals Below: Typical lawn found in courtyard a# each housing cluster. Photographs taken September 20, 20fl7. Eh VtROn7v+ENikL CONSU L:h~`$ Preliminary Section 4Q4 Delineation ARROYO VISTA HOUSING PROJECT DUBL[N, ALAMEDA COUNTY CALIFORNIA Prepared For: Jerry Haag 2029 University Avenue Berkeiey; California 94704 Contact: 7"am Fraser fraser@wra-ca.cam Date: July 2008 .. _ -- . 3 :„ ~. W~ r _,~~~...m--.-.--- --- -,~ =~ k .,. ,' ~.:s-_:_' :vim'- ~"""%,. " w.~ .~ ~, _ : ~. ~ lI~ ~ ~ fi ENVI~QNMENiA1 CrJNSu:iAN?$ 2?69-G ca8t srcnc'ssco 3~d., Sin :?at3el, CA 949~~ {>15} 45G-8868 teC (~i35; 45-0:29 fix into~,~ra-c~.com www,wra-c~.~or~ ~., TABLE OF CONTENTS 1.0 INTRODUCTION ........................................................ 1 1.1 Project Background ..................................................1 1.2 Regulatory Background ...............................................1 2.0 SUMMARY OF POTENTIAL JURISDICTIONAL AREAS .......................... 1 3.0 METHODS .............................................................1 3.1 Potential Section 404 Waters of the U.S .. ................................ 3 3.1.1 Wetlands ....................................................3 3.1.2 Other Waters of the U.S ......................................... 5 3.2 Difficult Wetland Situations in the Arid West ............................... 6 3.3 Areas Exempt from Section 404 Jurisdiction ............................... 6 4.0 PROJECT AREA DESCRIPTION . .......................................... 7 5.0 RESULTS .............................................................9 5.1 Potential Section 404 Waters of the U.S .. ................................ 9 5.1.1 Wetlands ....................................................9 5.1.2 Other Waters of the U.S ......................................... 9 6.0 REFERENCES .........................................................11 LIST OF FIGURES Figure 1. Project Area Location Map ............................................. 2 Figure 2. Location of North and West Fields within Project Area ........................ 8 Figure 3. Location of Delineation Sample Points within West Field ..................... 10 LIST OF APPENDICES Appendix A -Preliminary Section 404 Jurisdictional Data Sheets Appendix B -Representative Photographs of the Project Area ~~~ ~~ ~ ~~ ~~; 1.0 INTRODUCTION 1.1 Project Background On June 24, 2008, WRA, Inc. (WRA) conducted a routine wetland delineation at the 25-acre ,~ existing Arroyo Vista housing site (Project Area) in Dublin, Alameda County, California, which is located along Dougherty Road just north of Highway 580 (Figure 1). This delineation was ~° conducted in order to determine the presence or absence of potential wetlands and waters subject to federal jurisdiction under Section 404 of the Clean Water Act. This report presents the results of this delineation. ,~ 1.2 Regulatory Background Section 404 of the Clean Water Act Section 404 of the Clean Water Act gives the U.S. Environmental Protection Agency (EPA) and the U.S. Army Corps of Engineers (Corps) regulatory and permitting authority regarding discharge of dredged or fill material into "navigable waters of the United States". Section 502(7) of the Clean Water Act defines navigable waters as "waters of the United States, including territorial seas." Section 328 of Chapter 33 in the Code of Federal Regulations defines the term "waters of the United States" as it applies to thejurisdictional limits of the authority of the Corps under the Clean Water Act. A summary of this definition of "waters of the U.S." in 33 CFR 328.3 includes (1) waters used for commerce; (2) interstate waters and wetlands; (3) "other waters" such as intrastate lakes, rivers, streams, and wetlands; (4) impoundments of waters; (5) tributaries to the above waters; (6) territorial seas; and (7) wetlands adjacent to waters. Therefore, for purposes of determining Corps jurisdiction under the Clean Water Act, "navigable waters" as defined in the Clean Water Act are the same as "waters of the U.S." defined in the Code of Federal Regulations above. The limits of Corps jurisdiction under Section 404 as given in 33 CFR Section 328.4 are as follows: (a) Territorial seas: three nautical miles in a seaward direction from the baseline; (b) Tidal waters of the U. S.: high tide line or to the limit of adjacent non-tidal waters; (c) Non-tidal waters of the U. S.: ordinary high water mark or to the limit of adjacent wetlands; (d) Wetlands: to the limit of the wetland. 2.0 SUMMARY OF POTENTIAL JURISDICTIONAL AREAS No potential jurisdictional areas were found within the Project Area during the wetland delineation conducted by WRA on June 24, 2008. 3.0 METHODS Prior to conducting field surveys, reference materials were reviewed, including the Soil Survey of Alameda County (USDA 1966), the 2008 USGS 7.5' quadrangle, and aerial photographs of the site. 1 ~, - o r, ~ i~ ,. ~; x i ~ ` ,,,, .: '~ .. ', , - I it ~ .., ..r, - ~\. .- ~ . F, SSir~ _x + ~ /~~`V~" }...~~ ~+. w ~,1•_ ~': Y_.~JY ~.c .. ~~,.In i, . ',~' J j~ ~,1 ~= ~ ..+''.~~~~.- ! r ~ rr'~ 1~ ~f`' ~al :' r - ~.rt / - `r~.1 y. 1 of ~ ~ •1~..'~ 'f ~a ~l ., "' ._. ~ r'_ .. r• .~ ...... ~:> I SL+F ~i:i~a ,..yyi _ d J 1 39 ,:' 4 . ~~ ' `::N ~ ~\ ,, __ ~+ , 'M A,D a ) ~ III I~ - .. .. .. .. : ,` .-. 'W v _ "° +1 ` I l4 ~ ~ ~ f' rr~ ,, {J • AI I .,~ + 'Z~~'. ° Imo, ~' 1~ ~ r-~ _ L ~`• r r {~'~f E J +lai ~ ~. ,. 9 l+ J :n , ~~ ;~ , ~ r ~. . tt ,~~,, _ "' Y ~ ~, FS II_ ~u I ~r r~tr~F1. h~ i' nxl ~~ sy` ~ ~ ~' :~ ~'.~ t; I' ~~ ~. ' ~ Fr~ject Area ~=`'f ~1~~~~, - ~' r` .,. ~ I~ ,~ , ..-, ~_ ~~ ~ ~~ I t ~ ~ ~~7 - ~ ~ a ~J fur ~~,...~ ~` #~ ~ J Iii .~. ~~ ` I~ ~~ ~ "" ' l: ~~~ }7c y ~ ^~ .~°' . F ~,.a!!: U~~r~l~ 1111 C vv r~:R ~ w ~' ~ I s~ l~ ~ ~~ 1 Y.» r+- . E \,~ ~ ' I ~ j~f, _.. .r., ,., ~ ~.. ~~~~~ I i n - 1r '~ ,, . + ._~ 1 v , z~ s ;~~- _ (Iru ~ loll nn ~~ ~ ~..^ ~~ ~IIl1~~~ inn', I; '~~ ~ ~ ; ,. ~ ,~_ f, `1~' r~~ j ~; ; - I fill ,r r ~~(+ ~ s6 _ l~ l l ~`~ ~~ ~ ~ - ( `r . _~ ~., srsc-., ~ ~, ~ ~ 4. ~, \ ~ ~ ~ ll I ~ ~ - `: 111 I ~ I _, «., ,~~~ C~"~~~~ s ,~ '~ '% , ~ ~'' ~~~-rya f" * Jl~...... _ ~~I~~ rnl ~ ~~'~' ~_,. f ~,~~ ,. s~ b; '' .._ ~._. ' ~ ~ a ~ L.. ~ h.q~ ~ , I( _ L~ _ ~` K1 • ° ~1 ~r ~~; ~ ~ it I+ ~ Z ~~ F._ `',, ~, ,~_ y''rts b'"~t'~ r ~-µalar711' ~.~ r ~ ?r ~ = .i;.; ~ ' , i =~.,:-. ~, r3' , ;~ti',rr r)rtY~ln ~: ~ ° GRA ~Fr ~, is~~lj^"-.~ -B( _ _ ~'~ rt ter . ; .. , • - - - - K~z .3' . __.. ;0~i: ~,,,,.~ I ,~ ~ ~ ~1tii,~ i> 325 ,~ ~} ~ ~.- ~MI4'~` ~~., ~ ~l ~ ~y ..~- ~ Feet, 1'~,. ~ ' "' -~ ~K, ..i~; '!0 5001,000 2,000 , `'~b ~' ~" ,~'~'~ t ~ . ~ 1f~ ~ Yaac:.- ~~ C i .c_. -. _. JI...~ ., J; tl =- - , II n -,_. ~~- ---- ~~j,titr `~~ t~ \\ pEpy~~`- ~ ~,. VDA12Y 4~ . ~ \ Figure 1. Project Area Location Map ".: ~-tr ~~~ wry ENVIRtiNMENTAL CONSULTANTS Date: September 2007 Dublin Arroyo Vista Biological Assessment Basemap: USGSTOpoQuad Map By: Derek Chan Fllepath: L:Wcad 2000 Flles\16000\16142\pls\ Alameda Count California ArcMap\Fiq l_LocMap PS_20070925.mxd 3~6 0~ ~so~ A focused evaluation of indicators of wetlands and waters was performed in the Project Area on ~~ June 24, 2008. The methods used in this study to delineate jurisdictional wetlands and waters are based on the U.S. Army Corps of Engineers Wetlands Delineation Manual ("Corps Manual"; Environmental Laboratory 1987) and the Interim Regional Supplement to the Corps of Engineers '"~ Wetland Delineation Manual: Arid West Region ("Arid West Supplement"; Corps 2006). The , routine method for wetland delineation described in the Corps Manual was used to identify areas potentially subject to Corps Section 404 jurisdiction within the Project Area. A general description w of the Project Area, including plant communities present, topography, and land use was also generated during the delineation visits. The methods for evaluating the presence of wetlands and `~' Other Waters of the U.S. employed during the site visit are described in detail below. 3.1 Potential Section 404 Waters of the U.S. 3.9.9 Wetlands The Project Area was evaluated for the presence or absence of indicators of the three wetland parameters described in the Corps Manual (Environmental Laboratory 1987) and Arid West Supplement (Corps 2006). Section 328.3 of the Federal Code of Regulations defines wetlands as: "Those areas that are inundated or saturated by surface or ground water at a frequency and duration sufficient to support, and that under normal circumstances do support, a prevalence of vegetation typically adapted for life in saturated soil conditions. Wetlandsgenerallyinclude swamps, marshes, bogs, and similarareas." EPA, 40 CFR 230.3 and CE, 33 CFR 328.3 (b) The three parameters used to delineate wetlands are the presence of: (1) hydrophytic vegetation, (2) wetland hydrology, and (3) hydric soils. According to the Corps Manual, for areas not considered "problem areas" or "atypical situations": ':... jEJvidence of a minimum of one positive wetland indicator from each parameter (hydrology, soil, and vegetation) must be found in order to make a positive wetland determination. " Data on vegetation, hydrology, and soils collected at sample points during the delineation site visit '~" were reported on Arid West Supplement data forms. Once an area was determined to be a , potential jurisdictional wetland, its boundaries were delineated using GPS equipment and mapped on a topographic map. The areas of potential jurisdictional wetlands were measured digitally using .~ ArcGIS software. Indicators described in the Arid West Supplement were used to make wetland determinations at each sample point in the Project Area and are summarized below. Vegetation Plant species identified in the Project Area were assigned a wetland status according to the U.S. Fish and Wildlife Service list of plant species that occur in wetlands (Reed 1988). This wetland classification system is based on the expected frequency of occurrence in wetlands as follows: 3 ~, -, ~~~ ~? ~©~ OBL Always found in wetlands >99% frequency FACW(t) Usually found in wetlands 67-99% FAC Equal in wetland or non-wetlands 34-66% FACU Usually found in non-wetlands 1-33% UPL/NL Upland/Not listed (upland) <1 The Arid West Supplement requires that athree-step process be conducted to determine if hydrophytic vegetation is present. The procedure first requires the delineator to apply the "50/20 rule" (Indicator 1) described in the manual. To apply the "50/20 rule", dominant species are chosen independently from each stratum of the community. In general, dominant species are determined for each vegetation stratum from a sampling plot of an appropriate size surrounding the sample point. In general, dominants are the most abundant species that individually or collectively account for more than 50 percent of the total vegetative cover in the stratum, plus any other species that, by itself, accounts for at least 20 percent of the total cover. If greater than 50 percent of the dominant species has an OBL, FACW, or FAC status, ignoring + and -qualifiers, the sample point meets the hydrophytic vegetation criterion. If the sample point fails Indicator 1 and both hydric soils and wetland hydrology are not present, then the sample point does not meet the hydrophytic vegetation criterion, unless the site is a problematic wetland situation. However, if the sample point fails Indicator 1 but hydric soils and wetland hydrology are both present, the delineator must apply Indicator 2. Indicator 2 is known as the Prevalence Index. The prevalence index is a weighted average of the wetland indicator status for all plant species within the sampling plot. Each indicator status is given a numeric code (OBL = 1, FACW = 2, FAC = 3, FACU = 4, and UPL = 5). Indicator 2 requires the delineator to estimate the percent cover of each species in every stratum of the community and sum the cover estimates for any species that is present in more than one stratum. The delineator must then organize all species into groups according to theirwetland indicator status and calculate the Prevalence Index using the following formula, where A equals total percent cover: PI = A°BL + 2AFACW + 3AFAC + 4'AFACV + 5A~PL ' `OBL + AFACW + ' `FAC + ' `FACU + AUPL The Prevalence Index will yield a number between 1 and 5. If the Prevalence Index is equal to or less than 3, the sample point meets the hydrophytic vegetation criterion. However, if the community fails Indicator 2, the delineator must proceed to Indicator 3. Indicator 3 is known as Morphological Adaptations. If more than 50 percent of the individuals of a FACU species have morphological adaptations for life in wetlands, that species is considered to be a hydrophyte and its indicator status should be reassigned to FAC. If such observations are made, the delineator must recalculate Indicators 1 and 2 using a FAC indicator status for this species. The sample point meets the hydrophytic vegetation criterion if either test is satisfied. Hydrology The Corpsjurisdictional wetland hydrology criterion is satisfied if an area is inundated or saturated for a period sufficient to create anoxic soil conditions during the growing season (a minimum of 14 consecutive days in the Arid West region). Evidence of wetland hydrology can include primary 4 indicators, such as visible inundation or saturation, drift deposits, oxidized root channels, and salt crusts, or secondary indicators such as the FAC-neutral test, presence of a shallow aquitard, or crayfish burrows. The Arid West Supplement contains 16 primary hydrology indicators and 10 secondary hydrology indicators. Only one primary indicator is required to meet the wetland hydrology criterion; however, if secondary indicators are used, at least two secondary indicators must be present to conclude that an area has wetland hydrology. The presence or absence of the primary or secondary indicators described in the Arid West Supplement was utilized to determine if sample points within the Project Area met the wetland hydrology criterion. Soils The Natural Resource Conservation Service (NRCS) defines a hydric soil as follows: "A hydric soil is a soil that formed under conditions of saturation, flooding, or ponding long enough during the growing season to develop anaerobic conditions in the upper part." Federal Register July 13, 1994, U.S. Department of Agriculture, NRCS Soils formed over long periods of time under wetland (anaerobic) conditions often possess characteristics that indicate they meet the definition of hydric soils. Hydric soils can have a hydrogen sulfide (rotten egg) odor, low chroma matrix color, generally designated 0, 1, or 2, used to identify them as hydric, presence of redox concentrations, gleyed or depleted matrix, or high organic matter content. Specific indicators that can be used to determine whether a soil is hydric for the purposes of wetland delineation are provided in the NRCS Field Indicators of Hydric Soils in the U. S. (USDA 2006). The Arid West Supplement provides a list of 23 of these hydric soil indicators which are known to occur in the Arid West region. Soil samples were collected and described according to the methodology provided in the Arid West Supplement. Soil chroma and values were determined by utilizing a standard Munsell soil color chart (GretagMacbeth 2000). Hydric soils were determined to be present if any of the soil samples met one or more of the 23 hydric soil indicators described in the Arid West Supplement. 3.1.2 Other Waters of the U. S. This study also evaluated the presence of "Waters of the United States" other than wetlands potentially subject to U.S. Army Corps of Engineers jurisdiction under Section 404 of the Clean Water Act. Other areas, besides wetlands, subject to Corps jurisdiction include lakes, rivers and ~' streams (including intermittent streams) in addition to all areas below the HTL in areas subject to tidal influence. Jurisdiction in non-tidal areas extends to the ordinary high water mark (OHW) defined as: ~•~ "...that line on the shore established by the fluctuations of water and indicated by physical characteristics such as clear, natural line impresses on the bank, shelving, changes in the characteristics of the soil, destruction of terrestrial vegetation, the 5 ~. 3~~ ~ ~0~ presence of litter and debris, or other appropriate means that consider the characteristics of the surrounding areas." Federal Register Vol. 51, No. 219, Part 328.3 (e). November 13, 1986 Identification of the ordinary high water mark followed the Corps Regulatory Guidance Letter No. 05-05, Ordinary High Wafer Mark Identification (Corps 2005). 3.2 Difficult Wetland Situations in the Arid West The Arid West Supplement (Corps 2006) includes procedures for identifying wetlands that may lack indicators due to natural processes (problem areas) or recent disturbances (atypical situations). "Problem area" wetlands are defined as naturally occurring wetland types that periodically lack indicators of hydrophytic vegetation, hydric soil, or wetland hydrology due to normal seasonal or annual variability. Some problem area wetlands may permanently lack certain indicators due to the nature of the soils or plant species on the site. "Atypical situations" are defined as wetlands in which vegetation, soil, or hydrology indicators are absent due to recent human activities or natural events. The list of difficult wetland situations provided in the Arid West Supplement includes wetlands with problematic hydrophytic vegetation, problematic hydric soils, and wetlands that periodically lack indicators of wetland hydrology. In addition, the problem area and atypical situation sections of the Corps Manual (Environmental Laboratory 1987) were utilized to determine if any sample points taken within the Project Area met the criteria for a problem area or atypical situation. If any determination was based on less than three parameters, the rationale forthe wetland determination was explained on the data sheets included in Appendix A. Although the Corps Manual and Arid West Supplement were utilized in the wetland determination, they do not provide exhaustive lists of the difficult situations that can arise during delineations in the Arid West. As a result, WRA interpreted the gathered data using best professional judgement and our knowledge of the ecology of the wetlands in the region. 3.3 Areas Exempt from Section 404 Jurisdiction Some areas that meet the technical criteria for wetlands or Waters may not be jurisdictional under the Clean Water Act. Included in this category are some man-induced wetlands, which are areas that have developed at least some characteristics of naturally occurring wetlands due to either intentional or incidental human activities. Examples of man-induced wetlands may include, but are not limited to, irrigated wetlands, impoundments, or drainage ditches excavated in uplands, wetlands resulting from filling of formerly deep water habitats, dredged material disposal areas, and depressions within construction areas. In addition, some isolated wetlands and waters may also be considered outside of Corps jurisdiction as a result of the Supreme Court's decision in Solid Waste Agency of Northern Cook County (SWANCC) v. United States Army Corps of Engineers (531 U.S. 159 (2001)). Isolated wetlands and waters are those areas that do not have a surface or groundwater connection to, and are not adjacent to a navigable "Waters of the U.S.", and do not otherwise exhibit an interstate commerce connection. 6 4.0 PROJECT AREA DESCRIPTION The Project Area is approximately 25 acres and is located in Dublin along Dougherty Road north of Highway 580 and near the Highway 680/Highway 580 interchange (see Figure 1). More than eighty percenYof the site is a housing development accessed by two main roads (Monterey Drive and North Mariposa). The rest of the site is occupied by two undeveloped ruderal fields, one at the northern end of the site (North Field) and one on the western edge of the site (West Field) (Figure 2). West Field is surrounded on all sides by a paved foot/bikepath. A basketball court borders the eastern edge of this field. The entire Project Area has previously been disturbed and does not represent ahigh-value habitat. This highly modified site is surrounded by other housing developments and ruderal fields. The elevation of the Project Area ranges from 350 to 372 feet. A biological resources assessment conducted by W RA in September 2007 discovered the presence of wetland vegetation in the northwestern corner of West Field: one obligate wetland species, California bulrush (Scirpus californicus), one facultative wet species, tall flat-sedge (Cyperus eragrosfis), and three facultative species, dallis grass (Paspalum dilatatum), narrowleaf plantain (Plantago lanceolata), and rough cockle-bur (Xanfhium strumarium). The June 2008 wetland delineation focused on this site within the Project Area. It was apparent during the September 2007 assessment that soils in West Field have been disturbed, and this field appears to have been graded and modified with earth-moving equipment. The central section of West Field has been mowed and a layer of sawdust placed around sections of the perimeter of the mowed area. The topography slopes downward from the north and east edges of West Field towards a low point in the northwestern corner, where a drain is located. Shrubs and trees, including willow (Salix sp.), coyote brush (Baccharis pilularis), cotoneaster (Cotoneastersp.), firethorn (Pyracantha sp.), and non-native ornamentals are growing along the fence line that borders the western edge of this field. Vegetation Vegetation in West Field can best be described as a combination of disturbed/mowed habitat and ruderal herbaceous grassland. Plants observed include non-native species such as slender wild oat (Avena fatua}, ripgut brome (Bromus diandrus), yellow star thistle (Centaurea solstitialis), field bindweed (Convolvulus arvensis), Bermuda grass (Cynodon dactylon), sweet fennel (Foeniculum vulgare), dallis grass (Paspalum dilatafum), Harding grass (Phalaris aquafica), bristly ox tongue (Picris echioides), curly dock (Rumex crispus), and strawberry clover (Trifolium fragiferum}. Hydrology ~" Natural hydrological sources for West Field include precipitation and surface run-off from adjacent land within the Project Area. Soils The Alameda County Soil Survey (USDA 1966) indicates that two different soil types occur in the Project Area: Diablo clay (DbC) and Clear Lake clay (CdA). While the majority of the Project Area has Diablo clay soils, which are classified aswell-drained and occurring on slopes of 7-1, the area of interest where the wetland plants occur on-site occurs in a small inclusion of Clear Lake clay soils. This Clear Lake clay inclusion encompasses the northwestern tip of West Field. These soils are classified as moderately well-drained, occurring on 0-3% slopes. 7 391 0~' 8Dl ~~ ~ ~ r ~ ~'"" . ~ ., ~, ~~ . . . . .- ~~ - } . ~1u s&7 G~gy~~ F' *" W2S~ tt@"tC 'r ~ s' ._ . _ ~~ - »v ~.. a .~ ~ _ ~ ~tl _ ~^~~ .~ t f~.~a ~ F i rLf..».z- z ~ ~' f ~ ~ ~ t ~ ~f" -.~ . t`~l r ~- 1 .._ ~, y ~ ~ .~ ~ ~ ~~~~~ ~ ~~ ~ s I ;r ~t c 6 / cat :i~'4~` ,`~~~`~`~<,,, ~~„ *t,~~F~o~~~~ !~ '; - y` av. ~}~ : . 'Mo.°' ..h r ~ . :. 1~ ~ . ~ ~ ~Z"' a, .sue ~ F ~ ~ 7 N f f. ~ ~~ T' i ter' ' +~ ~' ~ ~ ~,,~ ~.~~_: '~ a ~- ~. - ~0 2oa 400 ) +~y ,f .'w t~ - Figure 2. Location of North and West Fields within Project Area ~ ~ ~~~ ~~ ~.a ..... Daze: Oc:obe 2~7 Dublin Arroyo Vista Biological Assessment ~~e?~o~o:'ersaServe", zaGt Uap By: Derek Chan F!;epazh: t:1~caC 2GGL1Fitesl:'GGGG\26u2~s\ Alameda County, California A'CMx7lF.G3_Aera,_C6_25_G3.n:xG 302 ~~~ ~ ~1 , 5.0 RESULTS Vegetation, soils, and hydrology data collected during the June 2008 delineation site visit are reported on standard Corps Arid West Region data forms in Appendix A and are briefly """" summarized below. Photographss of representative portions of the ProjectArea and sample points ,,,~,: are shown in Appendix B. 5.1 Potential Section 404 Waters of the U.S. 5.9.1 Weflands Two sample points were taken during the June 24, 2008 WRA delineation conducted in the Project Area. These were taken in the two areas identified in September 2007 as supporting wetland plants (WRA, 2007). Both sample points are located in the northwestern corner of West Field (Figure 3). Sample point 1 (P1) to the east of the paved footpath, and sample point 2 (P2) to the west of the paved footpath, as shown in Figure 3. P1 had no wetland indicators. P2 had a dominance of facultative vegetation (dallis grass), and met the hydrophytic vegetation criteria. However, sample point P2 lacked both hydric soils and evidence of wetland hydrology, and is not considered a potential jurisdictional wetland. Soils were somewhat disturbed at both P1 and P2 with fill material (inclusions of gravel, cement, and bark), but below seven inches the soil was mostly intact. In addition, both P1 and P2 were very small areas- only a few square meters in size. 5.9.2 Other Waters of the U. S. No potential "other waters of the U.S." were observed in the Project Area during the June 2008 delineation conducted by WRA. 9 . 3`33 ~'~ col "R~- .~..~ ~' .~~~~~~ ~ .fir R { ,~' ~' ~ ~~ . M.S 5 r ~ ~' ~ ~1R.. } n ~~ r W~ f ~ ~ ) a = r~~~~s ~ ~ r ~~ - :_ .. t:. .. ~~ - - i .,~ ~ ~ e,.7'`L~. ,~ T ~ "i i.G::..Y, s _.. ~' . f -~, "~ r y w ti ~ ~IW~~ x Y ~ H ry ~. I ~ E~r~ ~ _ _~ o.. ~ ^~~ ~'~r , ~ _ T ~ i .~,. ~ a, ;. n w ~':f i rrkr4 3 ~ r r rs~ a ~ t .~ . . ., s `s.~~ '~" .; r »L jk a r.~ii Y . , H u .f1 i / ~ 'Y~ t~ 'ir ~ f : r ~ ~lT ~~~ ~~ ~ ~ ~ a r2i _ ~ A1~i ~?~. H T. ~ _ .rN' `(, ~ ~. S `~ S"y'~4 _ - -lr' ~~'} 4~' ISM ..~ 4~ _ ,~ ... .fir,. ~ ~ ,~ v A.~`.°' N S ,p,„wr"..: •~ ~ r ' ry. '. ~; ; ., ~~: ~ n.. ,. ~W ~~ ~ ~ ~ ..1 a~ ~- ~ .aF+r .r t ~.'~'. ~~!~~ ~ ~ '~ " `~~~ r ~ ~ ~ `~ ~,.,~'` " ~ .. Legend <, W a~ <' ~ " a4, i ~ '~ ~"r ~ ~~ ?sojaC: 86urda.'y r ~~' ~ ~ ;~ _ ,~~ , C Sss°~e 26a„ S&rpie Pons :< _ x ..~... . ~~ ~ ' Figure 3. ~.ocation of Delineation Sample Points w~~hin ~ f West Field '~ ~'' ~~` ~ ~~ ~~- EtiV3RfJNR'fEN";; :. Cr.^dSULTA,AP?S Dublin Arroyo Vista siological Assessment Oa:e: June 20CS Base Phota:'era5erver, 2CCa f l Al t C d `Etepa:•'.: t.:WCdC2C00iit@5\:60C0\:6:G2\9~SlArCMap'. ~ orn~a ame a L/®un y a ~ Pi~3_Aer:ai_~6_25,,.CS.mxd ~~ ~~ ~Q I 6.0 REFERENCES Environmental Laboratory. 1987. Corps of Engineers Wetlands Delineation Manual. Department of the Army, Waterways Experiment Station, Vicksburg, Mississippi 39180-0631. ~' Federal Register. November 13, 1986. Department of Defense, Corps of Engineers, Department of the Army, 33 CFR Parts 320 through 330, Regulatory Programs of the Corps of Engineers; Final Rule. Vol. 51, No. 219; page 41217. GretagMacBeth. 2000. Munsell Soil Color Charts, revised washable edition. Reed, P. B., Jr. 1988. National list of plant species that occur in wetlands: California (Region 0). U.S. Fish and Wildlife Service Biological Report 88 (26.10). U.S. Army Corps of Engineers (Corps). 2005. Regulatory Guidance Letter No. 05-05. Ordinary High Water Mark Identification. December 7. U.S. Army Corps of Engineers (Corps). 2006. Interim Regional Supplement to the Corps of Engineers Wetland Delineation Manual: Arid West Region. December. U.S. Department of Agriculture (USDA), Soil Conservation Service. 1966. Soil Survey of Alameda County, California. to cooperation with the University of California Agricultural Experiment Station. USDA, Natural Resources Conservation Service (NRCS). 2005. Official List of US Hydric Soils. USDA, NRCA. 2006. Field Indicators of Hydric Soils in the United States: A Guide for Identifying "'"° and Delineating Hydric Soils, Version 6.0. In cooperation with the National Technical ~.. Committee for Hydric Soils, U.S. Army Corps of Engineers. U.S. Geological Survey (USGS). 2008. Dublin quad. 7.5 minute topographic map. WRA, Inc. 2007. Biological Resources Assessment for the Arroyo Vista Housing Project, Dublin, Alameda County, California. 11 ~~. ~~5~ ~~~~ Appendix A -Preliminary Section 404 Jurisdictional Data Sheets ~~ ~~ ~ ~ l: Wetland Determination Data Form -Arid West Region ProjecUSite Dublin Arroyo Vista City Dublin County Alameda Sampling Date 6/24/2008 Applicant/Owner City of Dublin State CA Sampling Point P1 Investigator(s) Cheryl Vann, WRA, Inc. Section,Township,Range sec 31, T2S, R1 E Landform (hillslope, terrace, etc.) open field Local Relief (concave, convex, none) none Slope(%) 0% Subregion(LRR) LRR C (Medit. CA) Lat: 37°42'57.56" N Long: 121°54'45.10" W Datum: NAD 83 (feet) Soil Map Unit Name Clear Lake clay (CdA) NWI classification None Are climatic/hydrologic conditions on-site typical for this time of year? ®Yes ^ No (If no, explain in remarks) Are any of the following significantly disturbed? ^ Vegetation ®Soil ^ Hydrology Are "Normal Circumstances" present? ®Yes ^ No Are any of the following naturally problematic? ^ Vegetation ^ Soil ^ Hydrology (If needed, explain any answers in remarks) CI IMMADV r1C CIAIr11 Aif!C _ A{{~nM ~i{e rr~on chnwinn ~amnln nnin{ Inner{inner {~~ncnn{c im nnr{~n{ fns{nrnc o{r Hydrophytic Vegetation Present? ^Yes ®No Hydric Soil Present? ^Yes ®No IS the Sampled Area within a Wetland? ~ Yes ®No Wetland Hydrology Present? ^Yes ®No Remarks: Sample Point P1 is located in uplands. VEGETATION Tree stratum (use soientifiC names) Absolute Dominant Indicator Dominance Test Worksheet cover Species? Status Number of Dominant Species 0 (A) 1• that are OBL, FACW, or FAC? 2• Total number of dominant 1 (B) 3, species across all strata? 4. % of dominant species that 0% (A/B) Tree Stratum Total Cover: are OBL, FACW, or FAC? SaDlina/Shrub Stratum Prevalence Index Worksheet 1 • Total % cover of: Muitioly bv: 2• OBL species x1 3• FACW species x2 q• FAC species x3 Sapling/Shrub Stratum Total Cover: FACU species x4 Herb Stratum UPL species x5 1, Avena fafua 95 Yes NL Column Totals (A) (B) 2. Hordeum murinum 3 No NL Prevalence Index = B/A = S q Hydrophytic Vegetatlon indicators 5, ^ Dominance Test is >50% s• ^ Prevalence Index is </= 3.0' 7. ^ Morphological adaptations (provide 8. supporting data in remarks) Herb Stratum Total Cover: 98 ^ Problematic hydrophytic vegetation' (explain) Woody Vine Stratum 1 • 'Indicators of hydric soil and wetland hydrology y must be present, Woody Vine Stratum Total Cover: Hydrophytic ^Yes ®No ° ° /° Bare ground in herb stratum 2 /° cover of biotic crust Ve station Present ? 9 Remarks: During the biological assessment site visit in September 2007 Scirpus calrfornicus was present at this site. It is currently mowed down, as this sample point is within and along the edge of a maintained field. US Army Corps of Engineers Arid West -Version 11-1-2006 ,~., .~~~ y©~ 711 Sampling Point P1 •ofile description: (Describe to the depth needed to document the Indicator or confirm the absence of Indicators.) depth Matrix ,inches) Color (moist) °/a Redox Features Color (moist) % Type, Loc' Texture Remarks 7 10YR 3/2 > 99 5YR 4/6 < 1 C M clay loam mixed with fill--gravel, cement, bark 10 10YR 311 > 98 2.5Y 7/4 1 C M silty clay no fill mixed in 5YR 4/6 < 1 C M silty clay no fill mixed in e: C=Concentration, D=De letion, RM=Reduced Matrix. ZLocation: PL=Pore Linin , RC=Root Channel, M=Matrix ydric Soil Indicators: (Applicable to all LRRs, unless otherwise noted.) Indicators for Problematic Hydric Soils': ] Histosol (A1) ^ Sandy Redox (S5) ^ 1cm Muck (A9) (LRR C) ]Histic Epipedon (A2) ^ Stripped Matrix (S6) ^ 2cm Muck (A10)(LRR B) ]Black Histic (A3} ^ Loamy Mucky Mineral (F1) ^ Reduced Vertic (F18) ] Hydrogen Sulfide (A4) ^ Loamy Gleyed Matrix (F2) ^ Red Parent Material (TF2) ] Stratified Layers (A5)(LRR C) ^ Depleted Matrix (F3) ^ Other (explain in remarks) ] 1cm Muck (A9)(LRR D) ^Redox Dark Surface (F6) ] Depleted Below Dark Surface (A11) ^ Depleted Dark Surtace (F7) ] Thick Dark Surtace (A12) ^Redox Depressions (F8) ] Sandy Mucky Mineral (S1) ^ Vernal Pools (F9) 'Indicators of hydric vegetation and ] Sandy Gleyed Matrix (S4} wetland hydrology must be present. estrictive Layer (if present): hype: )epth (inches): Hydric Soil Present 1 ^ Yes ®No marks: Top seven inches of soil contained fail material (gravel, cement, bark), but was fairly homogenous and devoid of fill below seven inches. (DROLOGY etland Hydrology Indicators: Secondary Indicators (2 or more required) imary Indicators (any one indicator is sufficient) ^ Water Marks (B1)(Riverine) Surface Water (A1) ^ Salt Crust (611) ^ Sediment Deposits (62)(Riverine) High Water Table (A2) ^ Biotic Crust (B12) ^ Drift Deposits (63)(Riverine) Saturation (A3) ^ Aquatic Invertebrates (B13) ^ Drainage Patterns (610) Water Mocks (B1)(Nonriverine) ^ Hydrogen Sulfide Odor (C1) ^Dry-Season Water Table (C2) Sediment Deposits (B2)(Nonriverine) ^ Oxidized Rhizospheres along Living Roots (C3) ^ Thin Muck Surface (C7) Drift Deposits (B3)(Nonriverine) ^ Presence of Reduced Iron (C4) ^ Crayfish Burrows (C8) Surface Soil Cracks (66) ^ Recent Iron Reduction in PLowed Soils (C6) ^ Saturation Visible on Aerial Imagery (C9) ~ Inundation Visible on Aerial Imagery (67) ^ Other (Explain in Remarks) ^ Shallow Aquitard (D3) Water-Stained Leaves (B9) ^ FAC-Neutral Test (D5) eld Observations: arface water present? ^ Yes ®No Depth (inches): ater table present? ^ Yes ®No Depth (inches): 3turation Present? ^ Yes ®No icludes capillary fringe) Depth (inches): Wetland Hydrology Present ? ^ Yes ®No :scribe recorded data (stream guage, monitoring well, aerial photos, etc.) if available. ~marks:A drain is located in the field roughly 40 feet north of sample point 1. I Army Corps of Engineers Arid West -Version 11-1-2006 Wetland Determination Data Form -Arid West Region '' ProjecUSite Dublin Arroyo Vista City Dublin County Alameda Sampling Date 6/24/2008 Applicant/Owner City of Dublin State CA Sampling Point P2 ' Investigator(s) Cheryl Vann, WRA, Inc. Section,Township,Range sec 31, T2S, R1E Landform (hillslope, terrace, etc.)flat ruderal area Local Relief (concave, convex, none) none Slope(%) 0% , Subregion(LRR) LRR C (Medit. CA) Lat: 37°42'57.85" N Long: 121°54'45.28" W Datum: NAD 83 (feet) Soil Map Unit Name Clear Lake clay (CdA) NWI classification None Are climaticlhydrologic conditions on-site typical for this time of year? ®Yes ^ No (If no, explain in remarks) Are any of the following significantly disturbed? ^ Vegetation ^ Soil ^ Hydrology Are "Norma! Circumstances" present? ®Yes ^ No ~° Are any of the following naturally problematic? ^ Vegetation ^ Soil ^ Hydrology (If needed, explain any answers in remarks) QI IRI RAA DV AC CIR1111 RlAQ AK....M .. ii.. ... ..M.....i...... ..I......i..~ 1.. w..~i..ww ~rw..w wwM wr4w r.~ iww~~~-w e. wow Hydrophytic Vegetation Present? ®Yes ^ No IS the Sampled Area ~ Yes ®No Hydric Soil Present? ^Yes ®No within a Wetland? Wetland Hydrology Present? ^Yes ®No Remarks: Sample Point P2 is located in uplands. VEGETATION Tree stratum (use scientific names) ~ Dominant Indicator Dominance Test Worksheet cover Species? Status Number of Dominant Species 1 (q) 1 • that are OBL, FACW, or FAC? Z• Total number of dominant 1 (B) 3, species across all strata? 4. % of dominant species that 100% (A/B) Tree Stratum Total Cover: are OBL, FACW, or FAC? Saolina/Shrub Stratum Prevalence Index Worksheet 1. Total % cover of: Multiolv bv: 2• OBL species x1 3• FACW species x2 4• FAC species x3 Sapling/Shrub Stratum Total Cover: FACU species x4 Herb Stratum UPL species x5 1, Paspalum dllatatum 90 Yes FAC Column Totals (A) (B) 2. Avena fatua 5 No NL 3 Prevalence Index = B/A = q, Hydrophytic Vegetation Indicators 5. ® Dominance Test is >50% 6. Prevalence Index is </= 3.0 7. ^ Morphological adaptations (provide 8. supporting data in remarks) Herb Stratum Total Cover; 95 ^ Problematic hydrophytic vegetation' (explain) Woody Vine Stratum 1 • 'Indicators of hydric soil and wetland hydrology 2, must be present. Woody Vine Stratum Total Cover: Hydrophytic ®Yes ^ No 0 /o Bare ground in herb stratum 5 o /o cover of biotic crust Ve station Present ? g Remarks: Dominated by one facultative species. Not a strong wetland indicator. US Army Corps of Engineers Arid West -Version 11-1-2006 .~~ I' P •nt P~ DIL Jp~~~N mg of •ofile description: (Describe to the depth needed to document the indicator or confirm the absence of indicators.) depth Matrix Redox Features 'inches Color (moist) % Color (moist) % Type, Loc' Texture Remarks 11 10YR 3/1 97 _ silty clay mixed with some gravel and fill 2.5YR 7/4 1 C M sandy prominent mottle 10YR 6/6 < 1 C M silty clay faint mottle e: C=Concentration, D=De letion, RM=Reduced Matrix. Location: PL=Pore Linin , RC=Root Channel, M=Matrix ydric Soil Indicators: (Applicable to all LRRs, unless otherwise noted.) Indicators for Problematic Hydric Soils': ] Histosol (A1) ^ Sandy Redox (S5) ^ 1cm Muck (A9) (LRR C) ]Histic Epipedon (A2) ^ Stripped Matrix (S6) ^ 2cm Muck (A10)(LRR B) ]Black Histic (A3) ^ Loamy Mucky Mineral (F1) ^ Reduced Vertic (F18) ] Hydrogen Sulfide (A4) ^ Loamy Gleyed Matrix (F2) ^ Red Parent Material (TF2) ] Stratified Layers (A5)(LRR C) ^ Depleted Matrix (F3) ^ Other (explain in remarks) ] 1 cm Muck (A9)(LRR D) ^Redox Dark Surface (F6) ] Depleted Below Dark Surface (A11) ^ Depleted Dark Surface (F7) ] Thick Dark Surface (A12) ^Redox Depressions (F8) ] Sandy Mucky Mineral (S1) ^ Vernal Pools (F9) 'Indicators of hydric vegetation and ] Sandy Gleyed Matrix (S4) wetland hydrology must be present. estrictive Layer (if present): type: )epth (inches): Hydric Soil Present ? ^ Yes ®No marks: Evidence of some fill material mixed in with the soil, but not as much as at sample point 1. Hydric soils not present at Sample Point. inoni nr_v etland Hydrology Indicators: Secondary Indicators (2 or more required) imary Indicators (any one indicator is sufficient) ^ Water Marks (61)(Riverine) ] Surface Water (A1) ^ Salt Crust (B11) ^ Sediment Deposits (62)(Riverine) ] High Water Table (A2) ^ Biotic Crust (B12) ^ Drift Deposits (63)(Riverine) ] Saturation (A3) ^ Aquatic Invertebrates (613) ^ Drainage Patterns (610) ] Water Marks (B1)(Nonriverine) ^ Hydrogen Sulfide Odor (C1) ^Dry-Season Water Table (C2) ] Sediment Deposits (82)(Nonriverine) ^ Oxidized Rhizospheres along Living Roots (C3) ^ Thin Muck Surface (C7) ] Drift Deposits (63)(Nonriverine) ^ Presence of Reduced Iron (C4) ^ Crayfish Burrows (C8) ] Surface Soil Cracks (B6) ^ Recent Iron Reduction in PLowed Soils (C6) ^ Saturation Visible on Aerial Imagery (C9) ] Inundation Visible on Aerial Imagery (67) ^ Other (Explain in Remarks) ^ ShallowAquitard (D3) ] Water-Stained Leaves (B9) ^ FAC-Neutral Test (D5) eld Observations: urace water present? ^ Yes ®No Depth (inches): ater table present? ^ Yes ®No Depth (inches): 3turation Present? ^ Yes ®No icludes capillary fringe) Depth (inches): Wetland Hydrology Present ? ^ Yes ®No :scribe recorded data (stream guage, monitoring well, aerial photos, etc.) if available. 'marks: No indicators of wetland hydrology present at sample point. i Army Corps of Engineers Arid West -Version 11-1-2006 y.oo ~~ g ~ ,~ Appendix B -Representative Photographs of the Project Area ~0~ o~ 80~ ~, l v ~~ ~ .. " .. ' ; s f~~- ~ , _ ~ t s _ o ~ : i R ': 1 z f ! a ~ tit ~ ` '~~~-- ... ~ ~. j ~ < c ~ ~ ` ~~~`" `C .ti 4 ,~ t *.. ~ `~ t c Y Y F -Vr . Z Y r ~ - ~~~~~~ ~~.~ ? ~ ~. mo~t. ~~~ ,{c qrr ti.E - ~, - ""= r Spa ` ~... .x{,,, _.,r ' ~ _ , . y'~ '~~ ~~ _ ~L T~ ,y C 4 .N._S. ,~ ~ ~ ~ w. _ r. i _ '~ i ~w ~ (yam t ~' - .~ X a :. J' ~- ~ -. Above: View north from sample point 1 towards drain. Below: View west with sample point 1 in foreground and sample point 2 across path in background. ~)wra EN ViitCN M£N'A: CONS:I i'ANT.$ taken June 24, 2008 ~Ioa °~ ~~I _ ~.Q w ~, .~ '~ t - ;~.-- "~ ~ ` ,, •~, x,. F ~ ~ ~~~~ f ~~ ,~. ' Ty ~' ~;" r _ ;> ~ ;4„ _ ~ ~x ~~ '` ~'~' '~ •M1 a C' ~ y:..' ..... _. _ ..a.._~~..._..._ .~ .«/ s, d> - =t r:: v~ K ~, ~ c . r~ ,r ~ ~ .~ r ~. ~~ r ~ t w #~ ~. 4.r c f ~ ~.a~ ~ Above: Sample point 3 - soii sample pit showing predominance o€ Avena fatua vegetation. Below: Cement conglomerate removed from sample potnt 1 SOIi ptt. :rte ~i' ~•. :.t. a A ,~ ~ _ V~ .: f } .~ ~ y ~, ~~~ !i ~ ~"~ V ~''Y _ r t c r t r ~ C Y ~`~1 ~ ~ ~ ~w .y, , v 1'4~y~.~ ~/~v. f i ~~ ~Y «w ~-,y YY ~~ EN V.n^QS~M:SJ7A1 CQNuV.`.1h T$ taken June 24, 2008 .? ^J L ~ ~~~ xt r i ~~_~; i ~ ~ x ~ ~ ~ ~ ~ .c ~ - ~ Ft! ~ti• ~t • t { , ~ r ~ {{ ~,. ~,;b K~ A:1 ~~'~ Y: v ^y. ; - ~~ ~ ,a e ~ ~R ~ ~ ~ti `~ ~J ~r~i ` ~ t~l~ ~ ~ r 'Z ~' , ~ k, e ~`,,: z ;` ~~ d t 1,~,~ ~ ~ ~~ 1 nl ~ ~ `1 ..~ .rte ,~ .. r, Above: View south with sample point 2 on the right of the path and sample point 1 on the left. ,~ ... ~;~:~.~. ~. ;~ - .1..,~' _ _ ^;~ ,..~~ ~wra Below: Soil pit for sample point 2, showing predominance of Paspalum dilatatum vegetation. £nviRONMEN'AL COtiSOI'ANFu Photographs taken June 24, 2008 fl~ ~`.~ 1 Appendix 8.6 Acoustic Analysis Arroyo Vista Project PA 07-028 Page 185 Draft Environmental Impact Report January 2009 City of Dublin n~ /LL/NGWORTH ~r RODKlN, INC. ~1l/'/Acoustics • Air Quality /Ale SOS Petaluma Boulevard South Petaluma, California 94952 Tel.• 707-766-7700 www. illingworthrodkin.com Fax: 707-766-7790 illro@ill ingworthrodkin. com January 28, 2008 Stephen Christensen Citation Homes 404 Saratoga Avenue, Suite 100 Santa Clara, CA 95050 VIA E-Mail: sehristensen~a)scsdevelonment.com SUBJECT: Arroyo Vista Residential Project, Dublin, California - Environmental Noise Assessment Dear Stephen: This letter presents the results of our environmental noise assessment of the Arroyo Vista Residential Project proposed west of Dougherty Road in Dublin, California. The project would redevelop the site with high-density residential uses. Included in the report are the fundamentals of environmental acoustics, applicable noise regulations and guidelines, and a description of existing noise levels at the project site. The report summarizes the results of calculations of future noise levels at proposed noise sensitive receptors and presents the noise and land use compatibility assessment of the proposed project. Preliminary recommendations are made to ensure a compatible residential development. Fundamentals of Acoustics Noise may be defined as unwanted sound. Noise is usually objectionable because it is disturbing or annoying. The objectionable nature of sound could be caused by its pitch or its loudness. Pitch is the height or depth of a tone or sound, depending on the relative rapidity (frequency) of the vibrations by which it is produced. Higher pitched signals sound louder to humans than sounds with a lower pitch. Loudness is intensity of sound waves combined with the reception characteristics of the ear. Intensity may be compared with the height of an ocean wave in that it is a measure of the amplitude of the sound wave. In addition to the concepts of pitch and loudness, there are several noise measurement scales which are used to describe noise in a particular location. A decibel (dB) is a unit of measurement which indicates the relative amplitude of a sound. The zero on the decibel scale is based on the lowest sound level that the healthy, unimpaired human ear can detect. Sound levels in decibels are calculated on a logarithmic basis. An increase of 10 decibels represents aten-fold increase in Stephen Christensen January 28, 2008 Page 2 of 15 acoustic energy, while 20 decibels is 100 times more intense, 30 decibels is 1,000 times more intense, etc. There is a relationship between the subjective noisiness or loudness of a sound and its intensity. Each 10-decibel increase in sound level is perceived as approximately a doubling of loudness over a fairly wide range of intensities. Technical terms are defined in Table 1. There are several methods of characterizing sound. The most common in California is the A- weighted sound level or dBA. This scale gives greater weight to the frequencies of sound to which the human ear is most sensitive. Representative outdoor and indoor noise levels in units of dBA are shown in Table 2. Because sound levels can vazy markedly over a short period of time, a method for describing either the average character of the sound or the statistical behavior of the variations must be utilized. Most commonly, environmental sounds are described in terms of an average level that has the same acoustical energy as the summation of all the time-varying events. This energy-equivalent sound/noise descriptor is called LeQ. The most common averaging period is hourly, but Leq can describe any series of noise events of arbitrary duration. The scientific instrument used to measure noise is the sound level meter. Sound level meters can accurately measure environmental noise levels to within about plus or minus 1 dBA. Various "~' computer models are used to predict environmental noise levels from sources, such as roadways and airports. The accuracy of the predicted models depends upon the distance the receptor is ~` from the noise source. Close to the noise source, the models are accurate to within about plus or minus 1 to 2 dBA. Since the sensitivity to noise increases during the evening and at night -- because excessive noise interferes with the ability to sleep -- 24-hour descriptors have been developed that incorporate artificial noise penalties added to quiet-time noise events. The Community Noise Equivalent Level, CNEL, is a measure of the cumulative noise exposure in a community, with a 5 dB penalty added to evening (7:00 pm - 10:00 pm) and a 10 dB addition to nocturnal (10:00 pm - 7:00 am) noise levels. The Day/Night Average Sound Level, DNL, is essentially the same as CNEL, with the exception that the evening time period is dropped and all occurrences during this three-hour period are grouped into the daytime period. to ~x ~~. y o 7 ~ ~ 01 Stephen Christensen January 28, 2008 Page 3 of IS TA Ri F 1 Ilaf;nitinns of Arnnctiral Terms used in this IZCnOrt Teats Definitions Decibel, dB A unit describing the amplitude of sound, equal to 20 times the logarithm to the base 10 of the ratio of the pressure of the sound measwed to the reference pressure. The reference pressure for air is 20. Sound Pressure Level Sound pressure is the sound force per unit area, usually expressed in micro Pascals (or 20 micro Newtons per square meter), where 1 Pascal is the pressure resulting from a force of 1 Newton exerted over an area of 1 square meter. The sound pressure level is expressed in decibels as 20 times the logarithm to the base ] 0 of the ratio between the pressures exerted by the sound to a reference sound pressure (e.g., 20 micro Pascals). Sound pressure level is the quantity that is directly measured by a sound level meter. Frequency, Hz The number of complete pressure fluctuations per second above and below atmospheric presswe. Nomtal human hearing is between 20 Hz and 20,000 Hz. Infrasonic sound aze below 20 Hz and Ultrasonic sounds are above 20,000 Hz. A-Weighted Sound The sound pressure level in decibels as measwed on a sound level meter using the A- Level, dBA weighting filter network. The A-weighting filter de-emphasizes the very low and very high frequency components of the sound in a manner similar to the frequency response of the human ear and correlates well with subjective reactions to noise. Equivalent Noise Level, The average A-weighted noise level during the measwement period. The hourly Leq Leq used for this report is denoted as dBA L~hl. Community Noise The average A-weighted noise level during a 24-hour day, obtained afer addition of Equivalent Level, 5 decibels in the evening from 7:00 pm to 10:00 pm and afer addition of 10 decibels CNEL to sound levels in the night between 10:00 pm and 7:00 am. Day/Night Noise Level, The average A-weighted noise level during a 24-hour day, obtained after addition of DNL or L~„ 10 decibels to levels measured in the night between 10:00 pm and 7:00 am. Ln Values The A-weighted noise levels that are exceeded I %, 10%, 50%, and 90% of the time during the measwement period. Lrn, Lui, L~i> Lvu Ambient Noise Level The composite of noise from all sowces near and far. The normal or existing level of environmental noise at a given location. Intrusive That noise which intrudes over and above the existing ambient noise at a given location. The relative intrusiveness of a sound depends upon its amplitude, duration, frequency, and time of occurrence and tonal or informational content as well as the prevailing ambient noise level. dog n~ col Stephen Christensen January 28, 2008 Page 4 of 15 1 AISLL' L r yp~ca~ Jet fly-over at 300 meters Pile driver at 20 meters m me r.nv~ronmenr 120 dBA Rock concert 110 dBA 100 dBA Night club with live music 90 dBA Large truck pass by at 15 meters Gas lawn mower at 30 meters Commercial/Urban area daytime Suburban expressway at 90 meters Suburban daytime Urban area nighttime Suburban nighttime Quiet rural areas Wilderness area Most quiet remote areas $0 d$A Noisy restaurant Garbage disposal at 1 meter 70 dBA Vacuum cleaner at 3 meters Normal speech at 1 meter 60 dBA Active office environment 50 dBA Quiet office environment 40 dBA 30 dBA Library Ouiet bedroom at nieht 20 dBA Quiet recording studio 10 dBA Threshold of human hearing o dBA Stephen Christensen January 28, 2008 Page 5 of ] 5 Regulatory Background HUD environmental noise regulations are set forth in 24CFR Part S 1B (Code of Federal Regulations). The following exterior noise standards for new housing construction would be applicable to this project. • 65 dBA La„ or less -acceptable. • exceeding 65 dBA Lan but not exceeding 75 dBA Lan -normally unacceptable (appropriate sound attenuation measures must provide an additional 5 decibels of attenuation over that typically provided by standard construction in the 65 dBA Lan to 70 dBA La„ zone; 10 decibels additional attenuation in the 70 dBA Lan to 75 dBA La„ zone) • exceeding 75 dBA Lai -unacceptable These noise standards apply, "... at a location 2 meters from the building housing noise sensitive activities in the direction of the predominant noise source..." and "...at other locations where it is determined that quiet outdoor space is required in an area ancillary to the principal use on the site." A goal of 45 dBA Lan is set forth for interior noise levels and attenuation requirements are geared toward achieving that goal. It is assumed that with standard construction any building will provide sufficient attenuation to achieve an interior level of 45 dBA Lan or less if the exterior level is 65 dBA Lan or less. The Ciry of Dublin has adopted noise and land use compatibility guidelines for new residential projects. Residential development is considered compatible without mitigation up to a day/night average noise level (Lan)g of 60 dB. This standard is more restrictive than the HUD exterior noise standard and is applied in primary outdoor use areas associated with asingle-family development (backyards) and common outdoor use areas associated with multi-family projects. Multi-family housing in the State of California is subject to the environmental noise limits set forth in the 2007 California Building Code (Chapter 12, Appendix Section 1207.11.2). The noise limit is a maximum interior noise level of 45 dBA Lan. Where exterior noise levels exceed 60 dBA Lan, a report must be submitted with the building plans describing the noise control measures that have been incorporated into the design of the project to meet the noise limit. This interior noise limit is consistent with the HUD guidelines. 1 City of Dublin General Plan, City of Dublin Community Development Department, Adopted February 11, 1985, Updated September 14, 2006. 2 Day/Night Noise Level, L~,. The average A-weighted noise level during a 24-hour day, obtained after addition of 10 decibels to levels measured in the night between 10:00 pm and 7:00 am. Stephen Christensen January 28, 2008 Page 6 of I S Existing Noise Environment The project site is located west of Dougherty Road, south of Amador Valley Road. Parks Reserve Forces Training Area is located east of Dougherty Road. The site is currently developed with residential land uses that will be replaced with the project. A 7-foot noise barrier is located at the property line of the project site to reduce noise levels generated by traffic along Dougherty Road. Ambient noise levels, resulting primarily from traffic, were measured at the project site from midday July 17, 2007 to the afternoon of July 19, 2007. The noise monitoring survey consisted of one long-term noise measurement (LT-1) and two short-term, attended noise measurements (ST-1 and ST-2). Noise measurement locations are shown on Figure 1. The long-term noise measurement was made approximately 50 feet from the centerline of Dougherty Road at an elevation approximately 12 feet above the ground. This measurement location was not shielded by the existing noise barrier and quantified the daily trend in noise levels during the approximate two-day measurement period. Daytime hourly average noise levels ranged from 70 to 75 dBA LeQ, and nighttime hourly average noise levels ranged from 58 to 74 dBA Les. The day-night average noise level, calculated based on the measured noise data at this location, was 75 dBA Ldn. Figures 2, 3, and 4 depict the daily trend in noise levels at the long-term noise measurement site. Two short-term noise measurements were made at positions five-feet above the ground to quantify noise levels at residential receivers that are shielded by the existing seven-foot noise barrier, Average noise levels generated by vehicular traffic were 56 to 58 dBA LeQ. The estimated Ldp at these locations is 59 to 61 dBA. Table 3 summarizes the short-term noise data. TABLE 3 -SHORT-TERM NOISE MEASUREMENT SUMMARY Location Leq L(10) L(50) L(90) Ldn ST- i ~ 65 ft. from the center of Dougherty Road, microphone 5 ft. above the ground, 58 61 57 52 61 shielded by existing 7 ft. noise barrier. ST-2 -. 95 ft. from the center of Dougherty Road, microphone 5 ft. above the ground, 56 59 55 51 59 shielded by existing 7 ft. noise barrier. Parks Reserve Forces Training Area (Camp Parks) is also a source of noise that affects project site. The site is located within 1,000 feet of the westernmost boundary of Camp Parks and is subject to audible noise from helicopters. Helicopters are required to enter and exit Camp Parks from the north and east, and although audible, noise levels resulting from distant helicopters are generally at or below ambient traffic noise levels along Dougherty Road. Training activities at the small arms ranges, located approximately one-mile to the northeast, may also be audible and .»., ~:~ ~ I I o.~ ~ `~' r Stephen Christensen January 28, 2008 Page 7 of 15 annoying at times. The Environtnental Noise Management Plan for Parks Reserve Forces Training Area3 indicates that the project site is within the Suggested Noise Disclosure Area but the site is not subject to incompatible noise levels. Noise and Land Use Compatibility Assessment Exterior Noise Assessment The compatibility of proposed exterior use areas is assessed against HUD's environmental noise regulations (65 dBA Ldn or less) and the Land Use Compatibility Standards established in the City of Dublin General Plan (60 dBA Ldn or less). FHWA's Traffic Noise Model (TNM v. 2.5) was used in the noise analysis for this project. Roadway, barrier, terrain features, and receiver locations were digitized and input into the traffic noise model in athree-dimensional reference coordinate system. Geometrical inputs were based on the project's Conceptual Land Plano and field observations. Traffic volumes, including the vehicle mix ratio, and traffic speeds were also input into the model for calibration based on field counts. TNM predicts noise levels assuming calm wind conditions with moderate temperatures and humidity. Future traffic projections were used to calculate the relative increase in traffic noise levels expected along Dougherty Road, adjacent to the project site, by 2025. Future traffic noise levels are anticipated to be about 2 dBA Ldn higher than existing conditions. Exterior noise levels would be as high as 77 dBA Ldn at the easternmost property line of the project site. Future noise levels in private/common exterior use areas were calculated assuming the attenuation provided by a noise barrier at the easternmost property line of the project site and the shielding provided by the proposed residential units, assumed to be two-stories high. Calculations were made for receivers located between proposed buildings and for receivers proposed near access roads that would receive less shielding (Figure 5). Traffic noise modeling results are summarized in Table 4. 3 Environmental Noise Management Plan, Parks Reserve Forces Training Area, California, U.S. Army Center for Health Promotion and Preventative Medicine, December 2000. 4 Arroyo Vista Conceptual Land Plan, Carlson, Barbee, & Gibson, Inc., June 20, 2007. 5 City of Dublin -Traffic Study for Arroyo Vista Housing Development, Figures 3 and 9, TJKM, December 19, 2007. U I~ o~ ~~~ Stephen Christensen January 28, 2008 Page 8 of 15 TABLE 4 -TRAFFIC NOISE MODELING RESULTS dBA, Ld„ Receiver 7-foot 8-foot 9-foot 1st Row -Between Buildin s 63 61 60 2nd Row- Between Buildin s 61 61 60 3rd Row-Between Buildin s 59 58 58 4th Row -Between Buildin s 57 56 56 5th Row -Between Buildin s 56 55 54 1st Row -Near Access Road 71 71 71 3rd Row -Near Access Road 67 67 66 5th Row -Near Access Road 62 62 62 As shown in Table 4, the existing 7-foot noise barrier (relative to the elevation of Dougherty Road) would reduce exterior noise levels to 63 dBA Ldp at first-row exterior use areas proposed between the residential units themselves. Exterior noise levels would be 61 dBA Ldp at second- row exterior use areas and less than 60 dBA Ld„ at third-row through fifth-row exterior use areas located between the residential units. The existing noise barrier would provide sufficient attenuation such that exterior noise levels between building rows would be less than 65 dBA Ldp meeting HUD's exterior noise standards for new housing. Larger noise barriers would be necessary to meet the City of Dublin's exterior noise level guidelines. An 8-foot noise barrier would reduce exterior noise levels at first- and second-row exterior use areas (between building rows) to 61 dBA Ldp and to less than 60 dBA Ld„ at third- row through fifth-row exterior use areas. A 9-foot barrier would be required to reduce exterior noise levels to 60 dBA L~, or less at all residential use areas located between building rows (first-row through fifth-row exterior use areas). Exterior noise levels at receivers adjacent to the access roadways would receive minimal shielding from noise barriers. Exterior noise levels would range from 62 dBA L~, to 71 dBA Ldp at first- through fifth-row receivers adjacent to an access roadway from Dougherty Road with the existing 7-foot noise barrier. Recommendation: As the site plan develops, continue to locate private or common exterior use areas away from Dougherty Road in areas shielded by proposed residential buildings. The project applicant and the City should agree on an acceptable exterior noise level and design noise barriers accordingly to meet the agreed upon level. The existing 7-foot noise barrier would reduce exterior noise levels to less than 65 dBA Ld,,, consistent with HUD guidelines and within the conditionally acceptable noise level range identified by the City of Dublin. A 9-foot barrier would be required to reduce exterior noise levels to 60 dBA Lai or less (normally acceptable range identified by the City of Dublin). Final detailed design of proposed noise barriers should be completed when the project site plan and grading plan are available. Noise generated by Camp Parks should also be disclosed to prospective homeowners/occupants in the property deed or lease agreement. ~r13 a~ &ol Stephen Christensen January 28, 2008 Page 9 of 15 Interior Noise Assessment The easternmost facades of proposed first-row units would be exposed to future exterior noise levels of about 76-77 dBA Ldp assuming amulti-story residential building with and uninterrupted view of Dougherty Road. Exterior noise levels at residential facades of second-row through fifth-row units would be lower assuming increased distance from the roadway and the shielding provided by adjoining buildings. Exterior noise levels would range from 62 to 73 dBA L~, at second-row through fifth-row units. Interior noise levels with the windows partially open for ventilation are approximately 15 decibels lower than exterior noise levels assuming typical California construction methods. With the incorporation of mechanical ventilation systems that allow occupants the option of maintaining the windows shut to control noise, interior noise levels are normally 20 to 25 decibels lower than exterior noise levels. Interior noise levels would be approximately 52 to 57 dBA Ldp inside residential units assuming the windows are closed. Interior noise levels would vary depending on the specific design of the buildings (relative window area to wall area) and construction materials and methods. Since project-level recommendations cannot be made without building elevation and floor plans, an acoustical analysis should be prepared during detailed design of the project. Attaining the necessary noise reduction from exterior to interior spaces is readily achievable in noise environments less than 75 dBA Lan with proper wall construction techniques, the selections of proper windows and doors, and the incorporation of forced-air mechanical ventilation systems. In noise environments exceeding 75 dBA La~> the construction materials and techniques necessary to reduce interior noise levels to acceptable levels become more expensive and difficult to implement. Noise insulation features such asstucco-sided staggered-stud walls and high STC-rated windows and doors would be required for first-row receivers adjacent to Dougherty Road. First-row residences would also need to be equipped with a full heating and air-conditioning system because it is unlikely residents would open their windows for ventilation. A minimum of 32 decibels of attenuation would be required to meet the 45 dBA Ld„ interior noise level guideline at units nearest Dougherty Road. Recommendation: Noise insulation features to be included in the project's design will need to be developed once detailed floor plans and building elevations are available. The noise control treatments should be designed to reduce interior noise levels to 45 dBA Lai or less to meet the interior noise limits established by HUD and the State Building Code. Special building construction techniques (e.g,, sound-rated windows and building facade treatments) will be required for new residential uses adjacent to Dougherty Road. These treatments would include, but are not limited to, sound rated windows and doors, sound rated wall constructions, acoustical caulking, eta The specific determination of what treatments are necessary will be conducted on a unit-by-unit basis. Results of the analysis, including the description of the necessary noise control treatments, will be submitted along with the building plans and approved prior to issuance of a building permit. Stephen Christensen January 28, 2008 Page 10 of 15 This concludes our environmental noise assessment. If you have any questions, or if we can be of further assistance, please do not hesitate to call. Sincerely yours, Michael S. Thill ILLINGWORTH & RODKIN, INC. (07-131) ,~, ~~ ~~ ~ `D1 wr -"` ~ ~~~~ r~ ..rs r. 'yY.:+ ~w-ar+r:,.w.. ~r"i. i~. "~~w+.e+r.:`--..'..:'r'.._'w ~r .~-~ +w~ M y. )a ~1r.r M- ,+aw ~lw ~F~ilr JID * ~K;K ~r3'~`,~ ,~~„ a- >*r-'1,'~ `~'+w.,~~y~ ""w,+`w.....r.,n. '?»~''~~» ~~;F ~ ~ '~'-t,~ ~ '.7.3.- ~~.~''. % '„' ai,CY~ ~~M - ~ "rte,; '~„ ... •.. . ~ ^:. _ :~. _ - p i ;:i.~s-.K"r"-a.K .. «. ~<u~'..~~'S .. ~ '. .T ~ _. .+. .. ~__. w .. ' . t Figure l - \oise ~Ieasuremen# Locations Noise Le~~eis at LT-Z n~50 feet from the. Center of DongherT;Y• Road Tuesday, Jnlti• 17, 2007 so 35 so ~S iQ ~_ Z .,. 'J E OO :J ,~..5 .? ?-. °0 d5 sa 3£ ?0 c:co zco r:co k.L~IfGiVODRTN~tf~O~DICNYl~1(C.. ~llfl acoustics • AIr Quality ittf' fi:DO 3:00 10:00 12:OC 1a:00 1F:00 15:00 20:OC 22:00 Honr Beginning • Leq -4- L{1} ~ 1f16i -~- L(30 ---- Li9C Fignre 2 ~~17 {~.~~' ~~D~ 1`voise Levels at LT-1 ~50 feet from #l~e Ceu#er of Dougl~erh• Road `Vednesda~•, Jtt1~- 18, 2007 90 5g 50 75 _ 'r0 ~c 50 Ci 4$ .~ Z °•0 ac ao ss 30 C:00 2:00 4:00 ILUI iK+WORTN~ R4DK1N, I14~ YIUAcovstres • Alr Ovality f!!f' 5:OC 8:00 10:00 12:00 14:00 15:00 15:00 2C:00 22:00 Hour Beginuinb • L~ -v L(1 .i -~ Lr10) -~- Lf50' -._~_ Lt90'~ 75 dBA Ldn Figure 3 ~i~ ~~ poi Noise Levels at LT-1 ~~50 feet from the Cen#er of Dougher#~~ Road Thursday, July 19.30Q7 so Q4 eo ~t _ -o U 5C •? -' Z 50 4w 30 u so a:aa 2:aa 4:eo /L L JM G I A J Q~ i 1 f l 8t f ~' O D K/ M~ jl I- C r ~lll7Acoustics ~ Afr (?ualJtyMI1:' 5:OG 8:00 10:00 12:00 14:a0 1E:00 18:00 20:aG 22:00 Honr Beginning • Lcq -~U,1} -C- L(10; -u~ L%50} LtSO Figure 4 Firyure 5 -Sample Noise vlodeling Receixers and \oise Levels Assuming 9-Foot Harrier -~~ _ ... .._. .. v,,, ~. t., ~~--: i ~7 L,dn I _.. __ , . _... __. 6; Ldn ____. . ~. m ~_ ~ . _ - _ _ ~'~`'Row" ~6Ldz1, ®_ _ ® 62 Ldn --~ 7-foot Barrier ~ 'Roti~ ... ~ .~. ..._,.. \ 3"~ Row " 59 Lda ® ©b7 Ldn / '~'~Row '© ___ ?"'Ro~.~ 63 Ldn ®- ~ 71 Ldn .~": ,~ .~. .,.. .;~~~"~i~,~T1 _ . ,~~,.~ _ ~ . _,.. cbfl _~ __- _ _.~.~.e ~~.~ - ~(~A o~- 8 DI From: "Erica Fraser" <Erica.Fraser@ci.dublin.ca.us> Subject; Cost of Project hate: January 30, 2008 5:52:55 PM GMT To: "Jerry Haag" <jphaag@pacbell.neb Jerry - This is Eden's estimate of building the affordable project. Let me know if you need anything else. The estimated total cost of the Arroyo Vista Affordable Apartments is $56,995,000. The total includes approximately $41,030,000 for the Affordable Family Apartments and approximately $15,965,000 for the Affordable Senior Apartments. The sources of funding for the Affordable Family Apartments would most likely include the City of Dublin, the Dublin Housing Authority from Citation Homes Central's site purchase, Low-Income Housing Tax Credit Investor, Affordable Housing Program (AHP) funding from the Federal Home Loan Bank and a permanent bank loan. The sources of funding for the Affordable Senior Apartments would most likely include the same sources except that HUD Section 202 Supportive Housing for the Elderly Program would be included and there would be no permanent bank loan. Erica Fraser, AICP Senior Planner City of Dublin 925-833-6610 ~. ~. ~i L~ a. I ~ '~ ~~.. Appendix 8.7 Traffic Impact Analysis Arroyo Vista Project PA 07-028 Page 186 Draft Environmental Impact Report January 2009 City of Dublin ~Faa a ~ ~ 0 j TJKM Transportation Consultants Vision That Moves Your Community Traffic Study for the Arroyo Vista Housing Development In the City of Dublin January 7, 2009 Pleasanton Fresno Sacramento Santa Rosa www.tjkm.com TJ KM Transportation Consultants ~~a3 ~~ ~~I Vision That Moves Your Community Traffic Study for the Arroyo Vista Housing Development In the City of Dublin January 7, 2009 vvww.tjkm.com Prepared by: TJKM Transportation Consultants 3875 Hopyard Road Suite 200 Pleasanton, CA 94588-8526 Tel: 925.463.06 I I Fax: 925.463.3690 J:\Jurisdiction\D\Dublin\ 157-001 On-call\Task 115- Arroyo Housing Development\Report\R O I0709.docx ~, ~~~ ~~ rbI JKM Transportation Consultants Table of Contents Introduction and Summary Introduction .............................., Summary .............................................................................................................................. Analysis Methodology ...........................................................................................................5 Study Intersections .......................................................................................................................................... .. 5 Study Arterial and Freeway Mainline Segments ........................................................................................ ..5 Study Scenarios ................................................................................................................................................. ..5 Level of Service Analysis Methodologies and Parameters ...................................................................... .. b Signalized Intersections .............................................................................................................................. ..6 Unsignalized Intersections ......................................................................................................................... ..6 Dublin Traffic Model ........................................................................................................................................ ..7 Dublin Traffic Model Calibration .................................................................................................................. ..7 City of Dublin General Plan and Tri Valley Transportation Action Plan Requirements ................. ..7 Alameda County Congestion Management Agency (CMA) Analysis .................................................. .. 7 MTS Roadway Segments ............................................................................................................................ ..8 Peak Hour Factor Assumptions .................................................................................................................... ..8 Significant Impact Criteria .............................................................................................................................. ..8 City of Dublin Intersections ...................................................................................................................... ..8 City of Pleasanton Intersections .............................................................................................................. .. 8 Routes of Regional Significance ................................................................................................................ ..9 CMA (Arterial and Freeway Segments) ................................................................................................. .. 9 Public Transit ................................................................................................................................................ ..9 Traffic Safety ................................................................................................................................................. .. 9 Pedestrian and Bicycle Circulation ..............................:........................................................................... ..9 Existing Conditions ............................................................................................................. 10 Existing Roadway Network ........................................................................................................................... 10 Existing Transit Service ................................................................................................................................... I I Livermore Amador Valley Transit Authority (Wheels) ..................................................................... I I .DART ............................................................................................................................................................. I I BART .............................................................................................................................................................. 12 ACE Commuter Train .............:..................................................................................................................12 Existing Bicycle and Pedestrian Circulation ...............................................................................................12 Existing Traffic Volumes and Lane Geometry ........................................................................................... 13 Intersection Level of Service Analysis -Existing Conditions ................................................................ 16 Project Characteristics ....................................................................................................... 17 Project Description .........................................................................................................................................17 Project Trip Generation .................................................................................................................................17 Trip Distribution and Assignment ................................................................................................................18 Project Site Access Assumptions .................................................................................................................18 Existing plus Project Conditions ........................................................................................21 Intersection Level of Service Analysis -Existing plus Project Conditions .........................................21 Short Term Cumulative (2015) Conditions .....................................................................24 Dublin Traffic Model (2015) Assumptions .................................................................................................24 Intersection Level of Service Analysis -Short Term Cumulative Conditions ..................................28 ~a5 ~~ dot - E JKM Transportation Consultants Short Term Cumulative plus Project Conditions ............................................................30 Intersection Level of Service Analysis -Short Term Cumulative plus Project Conditions...........30 Long Term Cumulative Conditions ..................................................................................33 Dublin Traffic Model (2025) Assumptions .................................................................................................33 Intersection Level of Service Analysis -Long Term Cumulative Conditions ...................................36 Long Term Cumulative plus Project Conditions ............................................................. 38 Intersection Level of Service Analysis -Long Term Cumulative plus Project Conditions............38 Alameda County CMP Land Use Analysis Program .......................................................42 MTS Arterial Impacts ......................................................................................................................................42 Freeway/State Highway Impacts ...................................................................................................................44 Transit System Impacts ...................................................................................................................................47 BART (Bay Area Rapid Transit) ...............................................................................................................47 LAVTA (Livermore Amador Valley Transit Authority) -- Wheels ..................................................48 ACE (Altamont Commuter Express) Train ..........................................................................................48 On site Bus Circulation Options .............................................................................................................48 Bicycle and Pedestrian Circulation Impacts ...............................................................................................52 Project Site Circulation, Parking, and Access Review ....................................................53 Parking Review .............................................................................................................................................53 Access Review ..............................................................................................................................................53 Project Site Circulation ..........................................:...................................................................................54 Pedestrian and Bicycle Circulation ..........................................................................................................54 Supplementary Analysis ..................................................................................................... 55 Intersection Level of Service Analysis -Long Term Cumulative plus Project Conditions ! (Alternate Camp Parks Access) .................................................................................................................... 55 Study Participants ............................................................................................................... 59 ~, TJKM Personnel ................................................................................................................................................ 59 Persons Contacted .......................................................................................................................................... 59 References ......................................................................................................................................................... 59 „, List of Appendices Appendix A -Level of Service Methodology Appendix B -Existing Conditions Traffic Count Sheets Appendix C -Level of Service Worksheets: Existing Conditions °~ Appendix D -Project Trip Generation Calculation Spreadsheets `, Appendix E -Level of Service Worksheets: Existing plus Project Conditions Appendix F -Traffic Analysis ZonesAppendix G -Level of Service Worksheets: Short Term Cumulative Conditions Appendix G -Level of Service Worksheets: Short Term Cumulative Conditions Appendix H -Level of Service Worksheets: Short Term Cumulative plus Project Conditions Appendix I -Level of Service Worksheets: Long Term Cumulative Conditions Appendix J -Level of Service Worksheets: Long Term Cumulative plus Project Conditions Appendix K -Level of Service Worksheets: Long Term Cumulative Conditions -Supplementary ,~, Analysis for Alternate Camp Parks Access ~~ ~JY.~ T-ansportation Consultants List of Figures Figure I : Vicinity Map .............................................................................................................................................3 Figure 2: Proposed Site Plan .................................................................................................................................4 Figure 3: Existing Conditions Turning Movement Volumes ........................................................................ 14 Figure 4: Existing Lane Configurations and Traffic Controls ...................................................................... 15 Figure 5: Net Project Trip Distribution Assumptions (A.M. Peak Hour) ................................................ 19 Figure 6: Net Project Trip Distribution Assumptions (P.M. Peak Hour) ................................................. 20 Figure 7: Existing plus Project Conditions Turning Movement Volumes ................................................. 22 Figure 8: Short Term Cumulative (2015) Conditions Turning Movement Volumes ............................ 26 Figure 9: Short Term Cumulative (2015) Conditions Lane Configurations and Traffic Controls..... 27 Figure 10: Short Term Cumulative (2015) plus Project Conditions Turning Movement Volumes... 32 Figure I I: Long Term Cumulative (2025) Conditions Turning Movement Volumes ........................... 34 Figure 12: Long Term Cumulative (2025) Conditions Lane Configurations and Traffic Controls.... 35 Figure 13: Long Term Cumulative (2025) plus Project Conditions Turning Movement Volumes.... 40 Figure 14: Bus Circulation Options ................................................................................................................... 49 Figure 15: Long Term Cumulative (2025) plus Project Conditions -Alternate Camp Parks Access Turning Movement Volumes ........................................................................................................ 57 ', Figure 16: Long Term Cumulative (2025) plus Project Conditions -Alternate Camp Parks Access Lane Configurations and Traffic Controls ................................................................................. 58 List of Tables Table I: Study Arterial and Freeway Segment Locations ...............................................................................6 Table II: Peak Hour Intersection Levels of Service -Existing Conditions ............................................... 16 Table III: Project Trip Generation .....................................................................................................................17 Table IV: Peak Hour Intersection Levels of Service -Existing plus Project Conditions .......................23 Table V: Peak Hour Intersection Levels of Service -Short Term Cumulative Conditions ................29 Table VI: Peak Hour Intersection Levels of Service -Short Term Cumulative plus Project Conditions .......................................................................................................................................................31 Table VII: Peak Hour Intersection Levels of Service -Long Term Cumulative Conditions ...............37 Table VIII: Peak Hour Intersection Levels of Service -Long Term Cumulative plus Project Conditions .......................................................................................................................................................41 Table IX: Year 2015 and Year 2030 PM Peak Hour MTS Arterial Levels of Service ............................43 Table X: Short Term Cumulative (2015) Conditions Freeway Analysis ..................................................45 Table XI: Long Term Cumulative (2030) Conditions Freeway Analysis ..................................................46 `` Table XII: Peak Hour Intersection Levels of Service -Long Term Cumulative plus Project Conditions (Alternate Camp Parks Access) ...........................................................................................56 uor7 ~ ~c~ Ott s rartst~ar'~a~ior: `onsui~ants Introduction and Summary Introduction This report presents the results of TJKM's traffic impact study for the proposed Arroyo Vista Housing Development in the City of Dublin. The project site is bounded by Dougherty Road to the east, Alamo Creek to the west, Amador Valley Boulevard to the north, and Iron Horse Trail to the south. The project vicinity is shown on Figure I. The proposed development consists of three types of housing: 50 affordable senior units, 130 affordable family units, and 198 for sale units. The development will replace 150 units of public housing on a 23.8-acre site. The development will also include a Community Building and a Child Care Center. Primary vehicle access will occur from three reconfigured roadways located on Dougherty Road. The existing N. Mariposa Drive will be eliminated with the project. The proposed project site plan is shown in Figure 2. The purpose of this traffic study is to evaluate traffic impacts, identify short-term and long-term roadway and circulation needs, determine potential mitigation measures, and identify any critical traffic issues that should be addressed in the on-going planning process. The study primarily focused on evaluating conditions at ten existing intersections and four project driveway ' intersections that may potentially be impacted by the proposed project. The intersection operating conditions were evaluated under six traffic scenarios that are listed in a subsequent section of this report. The analysis assumes that by Year 2025, Camp Parks access will be relocated from Dublin Boulevard to Dougherty Road opposite Amador Valley Boulevard. A supplementary analysis was conducted to assess the impact of the possible relocation of the Camp. Parks access onto Dougherty Road opposite the main project access at S. Mariposa Drive. For the purpose of this study, it was assumed that the future Central Parkway extension would connect with Dougherty Road north of where Scarlett Drive intersects Dougherty Road. Summary Under existing conditions, all 10 of the signalized study intersections will operate at acceptable levels of service following the completion of the current construction project to improve Dougherty Road between I-580 and Houston Place. Two of the four unsignalized study intersections at the existing Arroyo Vista development experience levels of service E or F at the stop signs on the side streets. They include Dougherty Road/Ventura Drive and Dougherty Road/ S. Mariposa Drive. The proposed development will add a net of 83 a.m. peak hour trips and 110 p.m. peak hour trips to the street system. Under existing plus project conditions, all 10 signalized study intersections will continue to operate at acceptable levels of service. With the reconfigured driveway system for the new project, the intersection of Dougherty Road/S. Mariposa Drive will require signalization to mitigate unacceptable side-street delay. Short term cumulative impacts were examined with the use of the 2015 scenario of the Dublin Traffic Model (DTM). In this scenario, only one signalized study intersection, Dougherty Road at Amador Valley Boulevard, has unacceptable levels of service. Three of the four unsignalized study Page I Report -Traffic Study for the Arroyo Vista Housing Development January 7, 2009 ya8 ~~ col Ei~. T,-ans~:c~ ~atior. ~or2sui~a~ts intersections at the existing Arroyo Vista site would experience unacceptable levels of service (excessive delays to motorists on the side streets) without the proposed project. Under short term cumulative conditions plus the proposed project, the project would exacerbate unacceptable conditions at Dougherty Road and Amador Valley Boulevard. Although the City has an identified Capital Improvement Program (CIP) project to widen Dougherty Road, it will not be complete by 2015. Thus, the project impact is significant and can be mitigated by the Project applicant making a fair share payment toward the future improvements. In this same scenario, a new traffic signal will be required to serve the new project at the intersection of Dougherty Road and S. Mariposa to mitigate unacceptable side-street delay. Long term cumulative impacts were examined with the use of the 2025 scenario of the DTM, which represents build out of the Dublin General Plan. Without the proposed project, level of service deficiencies would exist at two intersections, Dougherty Road at Amador Valley Boulevard and Dougherty Road at Dublin Boulevard. A supplemental analysis at the end of this report shows that without the Camp Parks access opposite Amador Valley Boulevard, this intersection would operate acceptably under long-term cumulative conditions. The intersection of Dublin Boulevard and Dougherty Road will operate unacceptably and no improvements, beyond those currently being constructed, are feasible. As in the previous cumulative scenario, three of the four existing ', unsignalized intersections serving the existing Arroyo Vista site would experience unacceptable levels of service (excessive delays to motorists on the side streets) without the proposed project. Project traffic is comparatively minor, so only the same intersections would continue to operate unacceptably with the addition of project traffic to long term cumulative traffic. The addition of project traffic at Dougherty Road and Amador Valley Boulevard would exacerbate unacceptable conditions. This potential impact would remain significant and unavoidable because the City will not have the authority to require the Army to construct improvements at this intersection. Since the project contributes some traffic to the already impacted intersection of Dublin Boulevard and Dougherty Road, this results in a significant and unavoidable impact. The City will need to continuously monitor this intersection in the future and implement any available transportation measures to reduce traffic. In addition, a new signal will be required to serve the project traffic on Dougherty Road at S. Mariposa to mitigate unacceptable side-street delay. Arterials and freeways were analyzed to satisfy the Alameda County Congestion Management Agency requirements. No project impacts were identified. The project creates no significant impacts for BART or the Altamont Commute Express, but does require some rerouting of Wheels buses due to a changed street pattern. Various rerouting options are presented that can be selected in the future to mitigate this impact. An analysis of bicycle and pedestrian impacts and a review of on-site circulation, parking and access were conducted. On site circulation needs to be modified somewhat, parking is adequate as proposed, and the previously described new traffic signal on Dougherty Road is required. The analysis also determined that the new entrance to Camp Parks could be placed either at Amador Valley Boulevard, requiring some additional mitigation at that intersection, or opposite the new signal at Arroyo Vista. If placed at the new signal, conditions would be acceptable. Page 2 Report - Tragic Study for the Arroyo Vista Housing Development January 7, 2009 ~~ L~~2 -~ ~,,~ ~~ 01 City of Dublin -Traffic Study for Arroyo Vista Housing Development Figure Vicinity Map Project Site ° 1 11 ~yo e fi,P~\,~y 8TH ST. BRODER BLVD. 12 ~P~o 13 F GLEASON DR. o, o ~P °j ` 14 °~ o 2 0 z o T w ~ ~ ~ v' K SCq..` ~'-. C9cQ ~~ c z `~~ -- CENTRAL PKWY. a .: 1 •, a ~~ ~ ~ SIERRALN~~, vNi ~ S~E~RgL~' 3 7 ~ ~ DUBLIN BLVD. S 4 s° w ~~<F~ QO HACIEIyO $ N CRUSS 9 CT. rr 9 tiG, :1 JOHNSON DR. 6 OWENS DR. 10 _- NORTH LEGEND No: to Scale • Study Intersection ~ Project Site Driveway ---Future Roadway 157-001 -4!4108 - DM -~ 3 ~W~ :~ .r ~~~ ~ a~ t:,,~ :~ City of Dublin -TrafFic Study for Arroyo Vista Housing Development Figure Proposed Site Plan 2 a a"'~~~ ~'~-`, ~~ .a`~' x~ N' ~ ~€ ~- ~~.. li I I I I I II I I I I III Ili ~. \ I ~~ ~,_ 1:: ~~ 1 ~' -- --- I~ VENTURA DP,. 5 ' _ ~ i ~~ ~ F I ' ;~. I & ', y;~~~ I ~; I ~ ~ !~ ~., 3~ - ~ _ ~{ = ~~ ,~ s ~ 1 ~ 4 I I o ~~ B \\ ~ ~ ~ ~ t ~ 'S. MARIPO~I. ~ ~j~ ~' ;~ ~ ~ ~ \~ ~~ o A ~~ ~ i 0 h ~ - ~~ I I I ~~ 'III y u l; ~ m , ,5 I _ ~~~ s~ ~~_~ ~ >~ . _. ~ a ~~, o-< a. I ~ I; :,~_ I i a~'' I ., . ~I , , V\_ _ = I I a, ~a, ~. 11 __ ~dr~. ~/y;dt,. ~ ~, {~ h10NTEREYDR. ~~"ao~ ~a ; ,,, N O R T H ';7 ~ riot '[o Scale I i I 57-D01 - 5/2108 - DM iii` i s-a~~~~ra:or ~onsuitar.~s Analysis Methodology Study Intersections City staff selected the following intersections for analysis. The traffic analysis for the intersections is based on weekday a.m. and p.m. peak hour volumes. I . Dougherty Road / Amador Valley Boulevard (signalized) 2. Dougherty Road / Scarlett Drive (signalized) 3. Dougherty Road /Sierra Lane (signalized) 4. Dougherty Road /Dublin Boulevard (signalized) 5. Dougherty Road /Westbound I-580 off-ramp (signalized) 6. Hopyard Road /Eastbound I-580 off-ramp (signalized) 7. Dublin Boulevard / Scarlett Drive (signalized) 8. Hacienda Drive /Dublin Boulevard (signalized) 9. Hacienda Drive /Westbound I-580 off-ramp (signalized) 10. Hacienda Drive /Eastbound I-580 off-ramp (signalized) I I . Dougherty Road / Ventura Drive (unsignalized) 12. Dougherty Road / N. Mariposa Drive (unsignalized -will be eliminated with the project) 13. Dougherty Road / S. Mariposa Drive (unsignalized -will be signalized with the project) 14. Dougherty Road /Monterey Drive (unsignalized) Study Arterial and Freeway Mainline Segments City staff also selected the study arterial and freeway mainline segments shown in Table I. The roadway segments were selected based on the Alameda County Congestion Management Agency (CMA) requirement for the analysis of Metropolitan Transportation System (MTS) arterial and freeway facilities that may be impacted by the project. The CMA analysis is required since the i proposed project is expected to generate more than 100 net new vehicle trips (CMA threshold) i' during the weekday p.m. peak hour. Study Scenarios The following six traffic scenarios were addressed in the traffic study: I . Existing Conditions -This scenario evaluates intersection conditions based on recent traffic counts and field surveys. 2. Existing plus Project Conditions -This scenario is similar to Existing Conditions, but with the addition of net project traffic. 3. Short Term Cumulative Conditions -This scenario evaluates intersection and roadway conditions based on 2015 traffic forecasts. 4. Short Term Cumulative plus Project Conditions -This scenario is similar to Short Term Cumulative Conditions, but with the addition of net project traffic. This scenario assumes that the entire proposed project will be completed by 2015. 5. Long Term Cumulative Conditions -This scenario evaluates intersection and roadway conditions based on 2025 traffic forecasts and assumes the development of the potential Camp Parks mixed-use project. 6. Long Term Cumulative plus Project Conditions -This scenario is similar to Long Term Cumulative Conditions, but with the addition of net project traffic. Page 5 Report - Traffic Study for the Arroyo Vista Housing Development January 7, 2009 ~j~~ ~~. ~~~ } Ii:" t ar.se~crtaciar. ~`~nsultar~t Table I: Study Arterial and Freeway Segment Locations Level of Service Analysis Methodologies and Parameters '' Level of service (LOS) is a qualitative description of intersection operations that uses an A through F letter rating system related to travel delay and congestion. LOS A indicates free flow conditions with little or no delay, while LOS F indicates jammed conditions with excessive delays and long back-ups. Signalized Intersections TJKM evaluated operating conditions at signalized study intersections using the Contra Costa Transportation Authority Level of Service (CCTA LOS) Operations methodology contained in TRAFFIX software. Peak hour intersection conditions are reported as critical volume-to-capacity (v/c) ratios with corresponding LOS. Where appropriate, TJKM analyzed queuing with Synchro software. Appendix A contains a detailed description of the CCTA LOS methodology. Unsignalized Intersections LOS at Unsignalized study intersections was evaluated using the 2000 Highway Capacity Manual (HCM 2000) Unsignalized Intersections methodology. The method ranks level of service on an A through F scale similar to that used for signalized intersections, using average delay in seconds per vehicle for stopping movements as its measure of effectiveness. The HCM 2000 methodology is also described in Appendix A. Freeways East of Fallon Road Between Tassajara Road and Fallon Road I-580 Between Hacienda Drive and Tassajara Road Between Dougherty Road and Hacienda Drive Between Dougherty Road and I-680 Alcosta Boulevard to I-580 I-680 South of I-580 SR-84 South of I-580 Arterials Between Hacienda Drive and Tassajara Road Dublin Boulevard Between Dougherty Road and Hacienda Drive Between Dougherty Road and Village Parkway Between I-580 and Dublin Boulevard Tassajara Road Between Dublin Boulevard and Gleason Drive North of Gleason Drive San Ramon Road Between I-580 and Amador Valley Boulevard Dougherty Road Between I-580 and Dublin Boulevard Page b Report - Tra)~c Study for the Arroyo Vista Housing Development January 7, 2009 ~. ~F 3 3 0-~- 8 p) i;"~; s ~-an~r~~ u~cior; ~orau~zan~s. Dublin Traffic Model The new Dublin Traffic Model (DTM) was used as the traffic analysis model. This model includes both Short Term Cumulative (2015) Conditions and General Plan Buildout or Long Term Cumulative (2025) Conditions, with 2015 reflecting a straight-line interpolation between 2004 and 2025 land use conditions. The use of 2015 is intended to approximate "approved development" conditions. The DTM was built on the CCTA model framework and its assumptions. The DTM is a refinement of the CCTA model and reflects the latest information on future land use projections and street networks in the City of Dublin. However, the CCTA Model is based on the regional San Francisco Bay Area Metropolitan Transportation Commission (MTC) travel demand model, with greater local detail in the area covering Contra Costa County and Tri-Valley. The CCTA Model serves as a valuable tool for transportation planning and traffic forecasting along the I-580 and I-680 transportation corridors. Local jurisdictions and congestion management agencies in Contra Costa and Alameda Counties have used this model extensively in preparing traffic impact studies and general plan updates. For example, the Alameda County Congestion Management Agency (ACCMA) used the CCTA Model for the Tri-Valley Triangle Study in the cities of Dublin, Livermore, and Pleasanton. Dublin Traffic Model Calibration The DTM was calibrated to account for local project conditions prior to generating the future travel demand forecasts. A model calibration is a process that includes revisions of network attributes and adjustments of the model estimated demands to more closely match existing traffic counts. The model was calibrated to existing turning counts collected in the City of Dublin between 2002 and 2004. The model roadway network was modified to include all the future study intersections. Based on the City's collected counts, the a.m. and p.m. turning movement volumes were entered into the "existing condition" portion of the model. The calibration for the study area also included revising the network topology and attributes as well as the Origin-Destination (OD) demand. After the model was calibrated, the difference method was used to generate future link and turn volumes based on the calibrated existing volumes. City of Dublin General Plan and Tri Valley Transportation Action Plan Requirements The following arterials are Routes of Regional Significance (RRS) in the City of Dublin: Dublin Boulevard, Tassajara Road, San Ramon Road and Dougherty Road. The DTM was used to forecast traffic volumes for the traffic impact analysis of intersections along RRS. The levels or service for ' intersections along RRS were analyzed using the CCTA methodology for signalized intersections, and the 2000 HCM LOS methodology for unsignalized intersections. Additionally, the analysis of facilities along RRS was limited to intersection LOS analysis in this traffic report. This is because intersection performance measures are better indicators of LOS conditions along arterials than are segments between intersections. Alameda County Congestion Management Agency (CMA) Analysis The Alameda County Congestion Management Agency's (CMA) 2007 Congestion Management Program (CMP) requires analysis of Metropolitan Transportation System (MTS) arterial, freeway, and transit facilities that are potentially impacted by the project. Since the proposed project is expected to generate more than 100 p.m. peak hour trips (net new), the 2007 CMP also requires a traffic impact analysis that includes use of the Alameda Countywide Transportation Demand Model for analyzing 2015 and 2030 traffic conditions. Consistent with CMP guidelines, the Alameda CMA analysis focuses on MTS roadway segments and transit corridors, but does not extend to intersections. The transit corridors in the project area Page 7 Report - Tra)~c Study for the Arroyo Vista Housing Development January 7, 2009 'i3~( o~- B0~ ~'it:!`~ C~nsuiia€7~s include Bay Area Rapid Transit (BART) regional rail and Livermore Amador Valley Transit Authority (LAVTA) buses. MTS Roadway Segments TJKM evaluated potential impacts due to project traffic on Metropolitan Transportation System (MTS) roadways. The MTS roadway system in the vicinity of the project includes I-580, I-680, SR-84, Dublin Boulevard, Tassajara Road, San Ramon Road and Dougherty Road. The study MTS roadway segments are included in Table I. The LOS for the designated MTS facilities were analyzed using the 1985 HCM LOS methodology as required by the CMA. The evaluation of the MTS roadway system was conducted to meet the requirements of the ACCMA and not to satisfy the City's General Plan or Tri Valley Transportation Plan/Action Plan requirements described in the previous section. Peak Hour Factor Assumptions The author of Mysteries of the PHF, Ransford S. McCourt, suggests guidelines for the appropriate use of PHF's for existing, near term and future traffic conditions. The author suggests using actual PHF's for existing conditions and 0.95 to 0.99 for future congested environments and/or where Transportation Demand Management (TDM) programs are effectively implemented or anticipated (spreading out peak traffic). Thus, utilizing aPHF = I.0 in future 20 year analysis may be reasonable if assumptions are stated such as the anticipation of TDM measures. Based on the above and the City of Dublin's promotion of Transit Oriented Developments (TOD's) in the City, aPHF = 0.97 was assumed for the analysis of all study intersections under future traffic conditions (i.e. Short Term Cumulative Conditions and Long Term Cumulative Conditions). Significant Impact Criteria The study intersections, arterial segments, and freeway segments were evaluated according to the following criteria: City o f Dublin Intersections An impact to a study intersection would be significant if an intersection operating at an acceptable level of service would deteriorate to unacceptable levels with the addition of project or cumulative traffic. The City of Dublin General Plan Circulation Element and Scenic Highways Guiding Policy standards require that the City strive for LOS D at intersections. Therefore, any study intersections operating below LOS D are considered potentially significantly impacted and will be evaluated for mitigation. City o f Pleasanton Intersections According to the adopted 1996 Circulation Element of the City of Pleasanton General Plan, LOS D is the Citywide traffic operational threshold. There are exceptions to meeting this threshold within the Downtown Area; however, none of the study intersections are located within Downtown Pleasanton. The September 2008 Draft Circulation Element allows gateway intersections, such as the ramp intersections along I-580, to exceed the LOS D standard, but this document has not yet been approved so its policies cannot be applied. An intersection is considered significantly impacted ~" if the addition of project trips deteriorates the level of service from LOS D (or better) to LOS E or LOS F. Also, a project significantly impacts an intersection operating at LOS E or LOS F if it adds more than 10 trips to the intersection. The Hacienda Drive /Eastbound I-580 off-ramp, Hacienda ~" Page 8 Report -Traffic Study for the Arroyo Vista Housing Development January 7, 2009 ~, -1I' ~'! ai1SI)p? e.?aLlOri. CJrtSUltdrtt Drive /Westbound I-580 off -ramp, and Hopyard Road/ Eastbound I-580 off-ramp intersections are Pleasanton intersections. Routes o f Regional Significance Routes identified since certification of the Eastern Dublin Specific Plan EIR would be considered to have a significant impact if the routes fail to comply with the applicable standard of the General Plan (i.e. LOS D). The General Plan requires the City to make a good faith effort to maintain Level of Service D on arterial segments of, and at the intersections of, routes of~regional significance (Dublin Boulevard, Dougherty Road, Tassajara Road and San Ramon Road) or implement transportation improvements or other measures to improve the level of service. If such improvements are not possible or sufficient, and the Tri-Valley Transportation Council cannot resolve the matter, the City may modify the level of service standard assuming other jurisdictions are not physically impacted (General Plan Circulation and Scenic Highways Guiding Policy E). CMA (Arterial and Freeway Segments) The LOS standard for CMA analysis is LOS E. The CMA does not have a policy for determining a threshold of significance for segments operating unacceptably without the project. Rather, professional judgment is required to determine project level impacts. Therefore, for the purpose of this traffic impact assessment, if a segment operates unacceptably without the project, the impacts of the proposed project are considered significant if the contribution of project traffic is at least two percent of the total traffic. Public Transit Public transit impacts would be significant if the demand for public transit service increases above that which local transit operators or agencies could accommodate. In addition, an impact would be significant if the project conflicts with adopted policies, plans or programs supporting alternative transportation. An impact is also significant if the project disrupts existing transit service or does not provide amenities necessary to accommodate transit demand. Tragic Safety A significant traffic safety impact would include a project design feature, such as a sharp curve or potentially hazardous intersection that would not be consistent with City of Dublin engineering design standards or standards published by the Institute of Transportation Engineers (ITE) or Caltrans. Pedestrian and Bicycle Circulation As listed in the City of Dublin Environmental Checklist, pedestrian and bike impacts would be significant if the project conflicts with adopted policies, plans, or programs supporting alternative transportation (e.g. bus turnouts and bicycle racks). A guiding principle for the architectural design of the project must include a pedestrian oriented design that provides safe and strong pedestrian connections between uses, through parking areas and along street corridors. Report - Traffic Study for the Arroyo Vista Housing Development Page 9 January 7, 2009 ~{ 3~ ~> ~ ~' ~ ~t ~, ....'J;' S Li $ :~:i1 ~5 Existing Conditions This section includes analysis results for existing traffic conditions in the study area, and establishes the baseline traffic conditions for the assessment of project impacts. Existing Roadway Network Interstate 580 (I-580) is an eight-lane, east-west freeway that connects Dublin with local Tri-Valley cities such as Livermore and Pleasanton as well as regional cities such as Oakland, Hayward and Tracy. In the vicinity of the City of Dublin, I-580 carries between 195,000 and 218,000 vehicles per day (vpd) (according to Caltrans' 2006 Tragic Volumes on California State Highways). I-580 interchanges are located at San Ramon Road/Foothill Road, Dougherty Road/Hopyard Road, Hacienda Drive, Tassajara Road/Santa Rita Road, and Fallon Road/EI Charro Road. Interstate 680 (I-680) is a six-to-eight lane north-south freeway that provides access to the south to Fremont, Milpitas and San Jose, and north to San Ramon, Danville, Walnut Creek and beyond. In the vicinity of the City of Dublin, I-680 carries between 154,000 and 173,000 vpd (according to Caltrans' 2006 Tragic Volumes on California State Highways). Dougherry~Rood is a north-south arterial in the City of Dublin. It consists of four lanes between the Alameda/Contra Costa county line and Dublin Boulevard, and six lanes between Dublin Boulevard and I-580. South of I-580, it continues with six lanes as Hopyard Road in the City of Pleasanton. The project fronts Dougherty Road. A current construction project is widening Dougherty Road to six lanes between Houston Place and Dublin Boulevard and eight lanes between Dublin Boulevard and 1-580. Airway Boulevard/Isobel Avenue (SR-84) is an arterial in the project vicinity. It provides access to traffic from the I-580/Airway Boulevard interchange to the residential and commercial uses in northwest Livermore and also the Livermore Airport and the Las Positas Golf Courses to the south of I-580 freeway. It connects to I-680 via the extension of Isabel Avenue, Vallecitos Road. Dublin Boulevard is a major east-west arterial in the City of Dublin. Dublin Boulevard, west of Dougherty Road is a four- to six-lane divided road fronted largely by retail and commercial land uses. Between Dougherty Road and Tassajara Road, Dublin Boulevard is a six-lane divided arterial fronted primarily by residential uses, commercial uses, and vacant land. Dublin Boulevard extends east of Tassajara Road to Lockhart Street as a four- to five-lane roadway fronted by new mixed- use development. A future extension to Fallon Road is planned to open when improvements to the I-580/Fallon Road interchange are completed by approximately 2010. Hacienda Drive is an arterial that provides access to (-580. North of I-580, Hacienda Drive is a three-to five-lane arterial running in the north-south direction from Gleason Drive southerly to Dublin Boulevard, and six-to-seven lanes from Dublin Boulevard to I-580. It is primarily fronted by commercial, office and residential uses. South of I-580, Hacienda Drive is a divided six-lane major arterial in the City of Pleasanton. Tassajara Road connects with Santa Rita Road at I-580 to the south and continues north to the Town of Danville. It is four to six lanes wide between I-580 and North Dublin Ranch Drive. It is named Camino Tassajara north of the Contra Costa County line. Page 10 Report - Traf ~c Study for the Arroyo Vista Housing Development January 7, 2009 ~, -iii, -=`an5r,~t°~~ri~rd ....Of1SE1'id^T_i Santa Rita Road is a major north-south six-lane divided urban arterial in the City of Pleasanton. It connects with Tassajara Road at I-580 to the north. It serves the east side of Pleasanton, including the Hacienda Business Park, and provides access to the downtown Pleasanton area. Existing Transit Service Livermore Amador Valley Transit Authority (Wheels) Wheels is the fixed-route bus transit service provided by the Livermore Amador Valley Transit Authority (LAVTA) for the Tri-Valley communities of Dublin, Livermore, and Pleasanton. Current bus routes serving the East Dublin area, including the immediate project vicinity along I-580, are Routes I , 3, 10, 12, 20, and 202 Route I consists of Routes I A, I B, I C, and I E. Route I A operates clockwise and Route I B operates counter-clockwise. Routes I A and I B connects the Dublin/Pleasanton Bay Area Rapid Transit (BART) station with the Santa Rita jail, Hacienda Crossing, and the Rose Pavilion. Routes I A and I B operate on weekdays between 5:40 a.m. and 9:OOp.m. Route I C operates via the southern part of Routes I A and I B during the morning and afternoon peak periods between 6:00 a.m. and 9:00 a.m. and 3:45 p.m. and 7:00 p.m. respectively. Route I E connects Dublin BART to Dublin Ranch via Central Parkway and Tassajara Road during the same periods as Route I C. Service is provided with 30-minute headways. Route I operates on Saturdays between 7:30 a.m. and 6:00 p.m. ` Route 3 connects the Dublin BART station and Stoneridge Mall along Dublin Boulevard and Foothill Road. Route 3 serves the existing Arroyo Vista housing site with a bus stop located on the west side of the Mariposa Drive loop. Service is provided from 5:40 a.m. to 8:10 p.m. on weekdays with 30-minute headways. Route 3 operates on Saturdays between 6:20 a.m. and 7:20 p.m. Route 10 provides 24-hour daily service between the Dublin/Pleasanton BART station and LLNUSandia Transit Hub in Livermore at 30-minute headways. Route 12 provides service between the Dublin/Pleasanton BART station and the Livermore Transit Center at 30-minute headways on weekdays between 5:30 a.m. and 9:50 p.m. Weekend service on Route 12 is provided between 7:00 a.m. and 7:00 p.m. at one-hour headways. Route 20 provides weekday morning and afternoon service at 30-minute headways. Route 20 connects the Dublin BART station with two Altamont Commuter Express (ACE) train stations in Livermore. Route 202 provides school service connecting Dougherty Road to Wells Middle School and Dublin High School with one morning run and one afternoon run. Route 202 serves the existing Arroyo Vista housing site. DART Direct Access Response Transit (DART) provides service during off-peak hours when most fixed- route buses are not in operation. Weekday service operates between 9:00 a.m. and 2:00 p.m. and ` from 7:30 p.m. to 9:00 p.m. DART operates on Saturdays between 8:30 a.m. and 6:30 p.m. Dial-a- Ride paratransit is also available seven days a week for passengers with disabilities. Page I 1 Report - Traffic Study for the Arroyo Vista Housing Development January 7, 20D9 `-t3`~ ~~ ~ fl y '~ ~,~~; Tt°ansp~ ~.~tiar~ ...^.CiSI:iL~Cir~ sARr BART provides regional rail transit service in the study area via the Dublin/Pleasanton station. BART runs at 15- to 20-minute headways between 4:00 a.m. and 12:00 a.m. on weekdays. Saturday service is available every 20 minutes between 6:00 a.m. and 12:45 a.m. Service is also available on Sunday from 8:00 a.m. to 12:45 a.m. with 20-minute headways. A new West Dublin-Pleasanton station is currently under construction and is expected to be operational within about three years. Additionally, long-range planning studies are currently being conducted to determine the feasibility of extending BART lines to Livermore. The studies also will examine alternative means of improving transit service to Livermore in the BART corridor until funds are available to construct the BART extension. ACE Commuter Train Altamont Commuter Express (ACE) offers an alternative to the automobile for regional commute trips from Livermore to Pleasanton and the South Bay area including Fremont, Santa Clara and San Jose. ACE trains provide westbound service to the South Bay area in the morning and eastbound service in the evening. There is one ACE station in Pleasanton near the intersection of Bernal Avenue and Pleasanton Avenue. Livermore has two ACE stations, one in Downtown near the Livermore Avenue/Railroad Avenue intersection and the other on Vasco Road, at the Vasco Road/Brisa Street intersection. In the morning, westbound trains stop at Pleasanton at approximately 5:35 a.m., 6:50 a.m., 7:55 a.m. and 10:45 a.m. In the afternoon and evening, eastbound trains stop at Pleasanton at approximatelyl2:56 p.m., 4:26 p.m., 5:26 p.m. and 6:26 p.m. Existing Bicycle and Pedestrian Circulation The project site is bounded on the west by the Alamo Creek Trail that extends to Amador Valley Boulevard and to the Dublin City Limits to the north and the Iron Horse Trail and the Dublin Civic Center and Dublin Sports Grounds to the south. The Alamo Creek Trail is a multipurpose trail '. that provides access to the Alamo Creek Villas and Park Sierra Apartment homes located west of the trail Currently, a sidewalk exists on the west side of Dougherty Road that borders the project site. ';, There are no southbound bicycle lanes in this area, but there is an eight foot shoulder in the `, southbound direction, not specifically designated for bicycle usage. On the east side of Dougherty Road, aClass Itwo-way north /south bike path with exclusive right-of-way runs parallel to Dougherty Road between Fall Creek Road just south of the Alameda County Line and Monterey Drive. Southbound cyclists are required to cross Dougherty Road westbound on the south side of the Monterey Drive intersection to continue southbound. A "Bicycle Crossing" warning sign facing northbound traffic exists south of this intersection to warn motorists of this crossing. The northbound bike path begins on Dougherty Road at Scarlett Drive/Iron Horse Trail. Iron Horse Trail is a major north-south multipurpose trail with a Class I bikeway, and also serves pedestrian and equestrian uses. The Iron Horse Trail starts from the Dublin /Pleasanton BART station and continues north through the San Ramon Valley to Concord. Currently, there are sidewalks on both sides of the internal streets within the project site. There are no existing dedicated bicycle lanes on these streets and thus cyclists are expected to share these streets with autos. Page 12 Report - Tragic Study for the Arroyo Vista Housing Development January 7, 2009 ,~. ~~~~-~ ~~ ~n~ --i~~:~~ ansFaa? ~~"ar~ ~nr2sui~a~t Existing Traffic Volumes and Lane Geometry The existing weekday a.m. and p.m. peak hour vehicle turning movement counts at all study intersections were collected in May 2007. The traffic counts were balanced for a few closely spaced intersections to account for differences in the manual counts. The volume balancing is based on a review of traffic count data collected for previous City of Dublin traffic studies. Appendix B contains the traffic count sheets. Figure 3 illustrates the existing peak hour turning movement volumes at all study intersections. Figure 4 shows the existing intersection lane configurations and traffic controls at all study intersections. Page 13 Report - Tragic Study for the Arroyo Vista Housing Development January 7, 2009 ~~~ o~ ~~~ City of Dublin -Traffic Study for Arroyo Vista. Housing Development Figure Existing Conditions Turning Movement Volumes 3 Intersection I Intersection 2 Intersection 3 Intersection 4 Intersettion 5 Dougherty Rd./Amador Vly. Blvd. Dougherty Rd./Scartett Dr. Dougherty Rd./Sierra Ln. Dougherty Rd./Dublin Blvd. Dougherty Rd./WB I-580 Off-Ram "` m m M m ~~ ~ ~ t~ ~ (O r tV .-. N O N M ao r ro ~n ~D. o - 1 (9) r~ ~? ° ~ 163 (394) ~n N N~ rte`+'` 4 ~~, ~--5(6) ~, i °' f--297(646) c°'o,~ ~! 552(573) ~ o isJ R~ro ~'~~ 1 16(19) r~~- -~ 216(302) a ~ ~ 426(251) 94 (330 ~ R I °i,~~~ v ~`~ r ~i 31 (87)~ R ~ ~ 27 (87) ±~ ~ ~ ~ 324 (294)J ~ v~~~ 26 J sj 2 (4)-- -~---'-- 209 (853) ~~'-. ®~- )~ N~ ~ •' r~'j 50(106) +f, cow 285(528)x( c°'n~rn ~~ VN ~OW °rm v~v ln0 r `- tfi ~..- N ~~ ~- ~ C(: ~ ~ ,~ W ~... M~ ~ ~~ ANC t!'>I.f) N n ti ~ O M d r Intersection 6 Intersection 7 Intersection 8 Intersection 9 Intersection 10 Hopyard Rd./EB I-580 Off-Ramp Dublin Blvd./Scariett Dr. Hacienda Dr./Dublin Blvd. Hacienda DrJWB I-580 Off-Ram Hacienda Dr./EB I-580 Off-Ramp (D M A~ o - O ~ t~n~ ~~ NV- MC.~- fD to mr NO ~`~ ln~ faM ~c~n on~iin .40(14) °'`~' R 300(414) rj m ~ ~f-690 (1.307) `D °if" X404 (512) a ~ 531 (304) ~! ~ ~~+ .j 15(20) ~~OS- - 178(196] ~ 5 (9)~ 42 (239) R, e ~ 694 (596)-~ 590 (832) ~ ~ 820 1,528 --~ ~ 186 (1,113 -i -- ~ ~- ( ) ) ~~ 1,092 (582)- 1.310(995) ~ mN 21(13) oM 116(488) ~o~N ~~ ~ ~~ ~~ ~-~n m ~ ~ ~ m ~o Sao O°`.N ~ M~~ OM ~N ti %I~ 0:/~ d' %~ Intersection I I Intersection 12 Intersection 13 Intersection 14 LEGEND Dougherty Rd./Ventura Dr Dougherty Rd./N. Mariposa Dr. Dougherty Rd./S. Mariposa Dr. Dougherty Rd./Monterey Dr. 0 0 ~ ~ Study Intersection m m ~ m ~ Project Site Driveway V~ ~~_ v~ XX AM Peak Hour Volume N~ ~n~ ~ o.- ~~ ~ ~i + ~ y r~ + (XX) PM Peak Hour Volume 8 (2)~ tj'~ 3 (6)~ R~ 4 28 (13)-~ ~)! 0 (0)~I `K ~ ---- Future Roadway 1 (1) ~ ~~~ 3(6)-+1 00 16(9)'Y No 8(14) ~ Nrn ~ _ Right turn volumes don't °" M ~ ~ ~ rn ~ go through intersection ~~ m NORTH Not to Scab Prolec~ Site 1 11 ~~o ~~, ~~P~~<. 12 8TH BT. BRODER BLVD. o° 13 P~ G GLEASON DR. o i~ '' 14 °~ o o a 2 p °z ~ x C~, -- CENTRAL PKWY. -----------"'-"-----'a K rZ~ ~ SIERRA LN.~~ S/ERRq~~' 3 7 ~ DUBLIN BLVD. $ ~' 4 SU w ^'~'<El Q p HACIEf7~, I 5 ? N CRUSS ~ CT. Irrt 9 tiC .' . JOHNSON DR. 6 OWENS DR. 1 O 157-001 TI I S - 4!9/08 - DM ~, fie., City of Dublin -Traffic Study for Arroyo Vista Housing Development Existing Lane Configurations and Traffic Controls ~~ ! ~-~ ~ ~ Figure 4 Intersection 1 Intersection 2 Intersection 3 Intersection 4 Dougherty Rd./AmadorVly. Blvd. Dougherty Rd./Scarlett Dr. Dougherty Rd./Sierra Ln. Doueherty Rd./Dublin Blvd. ~ 1; --~'~tt --~ lard Rd./EB I-580 Off-Ral w ~~11 _~}!r TT~ CY LL Intersection I I wAherty Rd./Ventura Dr. ~11 -C'~it F 0 J W ~11~. ~ ~~ ~tt~ W Intersettion 7 Dublin Blvd./Scarlett Dr. ;~ ~~~ Intersection 12 Dougherty Rd./N. Mariposa Dr. X11 -~ `~l ~ t Project Site.. ~~o dye yp~Y . Q- ~p00 i P ~ `'' °r ~f o, U Q ~ cA ~~ ~ ~ ~ c~~ 1 STH ST. X11 ~, ''~t?~' -~. Intersection 8 Hacienda Dr./Dublin Blvd. f- •~:11~~• ,~~~1 i f~'~` --. -.. Overlap Intersection 13 )ougherty Rd./S. Mariposa Dr. ~1 ~ ~~T R -.. Intersection 9 Hacienda DrJW6 I-580 ~~~~ R ::: -~ ,... tt'~ LL Intersection 5 Dougherty Rd.IW6 I-580 Off-Ramp w w Q: LL ~~~1 +, -~ ,.}, tt~ LL Intersection 10 Hacienda Dr./EB I-580 Off-Ramp w~ ~ t :~r ... t~~' w LL Intersection 14 LEGEND Jgherty Rd./Monterey Dr. ~ Study Intersection ~ Project Site Driveway ®Traffic Signal A~„~ -i- Stop Sign ~l ~ t -Future Roadway r N O R T H IJot to Scale BRODER BLVD. GLEASON DR. 0 Q Z Q CENTRAL PKWY. HACIENO CROSS 9 9 tic 10 d 14 0 J 2 z rT- S~ •` tY Q tr . ;~ ~ o ~ SIERRA LN ~• 3 7 ~ _ DUBLIN BLVD. - 4 s~ w < F~ ~ 5 L~~ " ~ CT ~r~r! JOHNSON DR. OWENS DR. tr a Q 157-001 T I I S - 4/9/D8 - DM ~ ~+z o.~ ~ o i µ _,,. ~or:sui.an:. Intersection Level of Service Analysis -Existing Conditions Table II below summarizes peak hour levels of service at all study intersections under Existing Conditions. LOS worksheets are provided in Appendix C. Under Existing Conditions, all signalized study intersections currently are operating at acceptable City standards of LOS D or better except Dougherty Road/Dublin Boulevard (LOS E during the p.m. peak period). A City Capital Improvement Program Project is underway to increase the capacity of Dougherty Road in the vicinity of Dublin Boulevard. With the improvements scheduled for completion in August 2008, the intersection of Dougherty Road/Dublin Boulevard will operate at an acceptable LOS B or better. Also, under Existing Conditions, all unsignalized study intersections currently are operating at LOS A with an acceptable minor approach service level of LOS D or better, except Dougherty RoadNentura Drive and Dougherty Road/S. Mariposa Drive. The critical minor approaches of these two intersections are both currently operating at LOS E or worse during the a.m. peak period. Table II: Peak Hour Intersection Levels of Service - Existin>? Conditions ID i Si li d I A.M. Peak Hour P.M. Peak Hour ntersect on gna ze V / C LOS V / C LOS I Dougherty Road/Amador Valley Boulevard 0.75 C 0.74 C 2 Dougherty RoadlScarlett Drive 0.58 A 0.55 A 3 Dougherty Road/Park Sierra 0.66 B 0.62 B 4 Dougherty Road/Dublin Boulevards ....._..........._..__......_._.....~.._.._...~__-- -----..__..__ ......................_...._.__...._......__...._....................~.................._ With City's Capital Improvement Project 0.67 .........._..__..........._............_...... 0.48 B .._......._...._........_...__....- A 0.98 --.._...........__.._......__........ 0.63 E ..........._......_..................~... B 5 Dougherty Road/Westbound I-580 off-ramp 0.58 A 0.56 A 6 Hopyard Road/Eastbound I-580 off-ramp 0.72 C 0.71 C 7 Dublin Boulevard/Scarlett Drive 0.20 A 0.39 A 8 Hacienda Drive/Dublin Boulevard 0.28 A 0.54 A 9 Hacienda Drive/Westbound I-580 off-ramp 0.34 A 0.44 A 10 Hacienda Drive/Eastbound I-580 off-ramp 0.53 A 0.55 A I i i li d I U A.M. Peak Hour P.M. Peak Hour D gna ze ntersect on ns Delay LOS Delay LOS I I Dougherty Road/Ventura Drive 0.2(42.5) A (E) 0.0 (21.6) A (C) 12 Dougherty Road/N. Mariposa Drive 0. I (27.7) A (D) 0.1(I 9.5) A (C) 13 Dougherty Road/S. Mariposa Drive 1.2(62.8) A (F) 0.2(22) A (C) 14 Dougherty Road/Monterey Drive 0. I (18.4) A (C) 0. I (I 2.2) A (B) Notes: L05 =Level of Service V / C =Volume-to-capacity ratio for overall signalized intersection X (X) =Intersection level of service (Level of service for the minor approach) X.X (X.X) =Average delay in seconds per vehicle overall one-way stop-controlled "~ (unsignalized) intersection (Delay in seconds per vehicle to minor approach) Bold values indicate unacceptable LOS conditions The existing a.m. level of service is worse than indicated due to underserved demand resulting from southbound traffic congestion. Page I6 Report - Tragic Study for the Arroyo Vista Housing Development January 7, 2009 uu~ ~ ~o~ Ti,~~ ~.onsuicantW Project Characteristics Project Description Based on information provided by the City of Dublin in March 2007, the proposed Arroyo Vista residential development will include approximately 378 dwelling units. There will be three types of housing: 50 affordable senior units, 130 affordable family units and 198 for sale units. The development will replace 150 units of public housing on a 23.8-acre site. The development will also include a village community center and a childcare center. Primary vehicle access will occur from three reconfigured driveways located on Dougherty Road. Project Trip Generation TJKM estimated project trip generation based on Institute of Transportation Engineers (ITE) trip generation rates, shown in Table III. The project is expected to generate approximately 2,868 daily trips, with 198 trips occurring during the a.m. peak hour and 224 trips occurring during the p.m. i peak hour. Since the project is a redevelopment of an existing site with similar land uses, TJKM !~~~ subsequently discounted volumes generated by the existing land use at the existing site driveways. As a result of these discounts, the project is expected to generate 83 net a.m. peak hour trips and 10 net p.m. peak hour trips. Appendix D contains a detailed project trip generation calculation spreadsheet. Table III: Project Trip Generation Land Use Doily A.M. Peak Hour P.M. Peak Hour ITE Code ~ ) Size Unit Rate Total Trip In:Out In Out Total Trip In:Out In Out Total Rate ~ Rate % Low Rise Apartment (22 I) i 58 d.u. 11.8 684 0.61 21:79 7 28 35 0.72 65:35 27 15 42 Rental Townhouse (224) 72 d.u. 10.5 756 0.70 33:67 17 34 51 0.72 51:49 26 25 51 Senior Housing - Attached (252) 50 d.u. 3.48 174 0.08 45:55 2 2 4 0.1 I 61:39 3 2 5 Residential Condominium / 198 d.u. 5.79 1,147 0.45 17:83 15 74 89 0.53 67:33 71 35 104 Townhouse (230)i Sub Total Residential Trips 2,762 41 138 179 1 Z7 77 Z04 Day Care Center (565) 48 stu. 4.48 215 0.80 53:47 20 18 38 0.82 47:53 18 21 39 Internalization of Day Care Center Trips - 108 - I 0 -9 - 19 -9 - I 0 - 19 (50% assumed) Net Day Care Trips 107 10 9 19 9 1 I 20 Total Project Trips 2,868 51 147 198 136 88 224 Existing Site 7raf~ic 48 67 1 15 62 52 114 Net Project Trips 3 80 83 74 36 110 Notes: d.u. =Dwelling Units stu. =Students/Children iRates developed from ITE equations zDaily equation for code 221 was used to estimate the daily trips for code 224 Source: Institute of Transportation Engineers (ITE) Trip Generation (7th Edition, 2003) Page 17 Report - Tragic Study for the Arroyo Vista Housing Development January 7, 2009 ~~~ ~ ~n~ -,~` ;, Tran;~or-~cior ... O~!'sUl.~.tlt_ The study assumes 50 percent internalization of daycare center trips to account for home-based trips made internally within the project site between the residences and daycare center. The daycare center is intended to serve local residents; the home to daycare trip does not leave the immediate project area and affect any surrounding streets or intersections. The other 50 percent of the day care trips are expected to originate externally. Trip Distribution and Assignment Trip distribution is a process that determines in what proportion vehicles would travel between a given project site and various destinations outside a given study area. The process of trip assignment determines the various routes that vehicles would take from the project site to each destination using the estimated trip distribution. TJKM used the Dublin Traffic Model to develop trip distribution and assignment of project trips to and from the site. Project trips were assigned to the local street network according to the model's '~' trip distribution. Trips were assigned to the driveways in proportion to residential unit counts. ~., Figures 5 and 6 show the distribution of the net project trips in the study area for the a.m. peak hour and p.m. peak hour respectively. As shown in Figures 5 and 6, the project is expected to generate approximately eight net a.m. peak hour trips and three net p.m. peak hour trips to and from San Ramon. Most of the trips to/from •~~ the north of the project site are made via Dougherty Road. Therefore, project impacts in San Ramon are expected to be minimal. Project Site Access Assumptions The following project site access was assumed by considering transit circulation, driveway queuing, and a review of the project site plan for consistency with the City's design policy guidelines. The existing project site access driveways along Dougherty Road will be reconfigured as follows: • Dougherty Road /Monterey Drive will be restricted with aright-in/right-out access traffic control • Dougherty Road /South Mariposa Drive will operate with full access traffic control • Dougherty Road /North Mariposa Drive will be eliminated • Dougherty Road / Ventura Drive will. have alert-turn egress restriction Detailed discussions of the above site access and recommended traffic controls are presented under the "Project Site Circulation, Parking and Access Review "section of this report. Page 18 Report - Tragic Study for the Arroyo Vista Housing Development January 7, 2009 L 7 ~ d0 LL i-+ L C d O ~ > ~ ~ ~ C 7 O N = C ~ .O ~" ~ ~ O rn L H L Q C O ~ •~ ~ ~ ,~ 'L. N ~ V .N _C ~ ~ ~ ~ .~ 4- O ~ ~ UZ L ~ ~C ao i.i ~ L d _0 N ~ N ~ C .j O N 2 ~ ~ ~ ~ ~ O N L {n L Q C O ~ ~~ ~ ~ ~ ~ ~ ~L N ~..i U .N ~ a C ~ V ~ .~ ~ ~ O +~ N UZ ~: E 0 ~ s. ~ ~.. ~_ _ ~, ~~rti -;-a~s~or"4ati~r~ ,Oit5Uiiai~i4 Existing plus Project Conditions This scenario is similar to Existing Conditions, but with the addition of net project traffic to assess any traffic impacts at the study intersections if the project were to be developed immediately. This analysis scenario evaluates the effect that the project has on "baseline" (existing) conditions, as required by CEQA. Figure 7 shows the resulting turning movement volumes at the study intersections under Existing plus Project Conditions. Intersection Level of Service Analysis -Existing plus Project Conditions Table IV summarizes peak hour levels of service at all study intersections under Existing plus Project Conditions. LOS worksheets are provided in Appendix E. Table IV shows slight increases in measures of effectiveness (MOEs) [i.e. v/c and LOS] compared with Table II for all study intersections. The analysis assumes that the current improvements at Dublin Boulevard / Dougherty Road will be completed by the time the project is developed. Under Existing plus Project Conditions, all study intersections are expected to continue operating at acceptable levels of service. Project driveways along Dougherty Road will be reconfigured with the project therefore the MOEs for the "with" and "without" project are not directly comparable. Impact TR- Under Existing Conditions, side-street traffic on S. Mariposa Road at Dougherty Road experiences unacceptable LOS F conditions during the a.m. peak hour. The addition of project traffic would exacerbate this condition. This impact is significant. Mitigation Measure TR-I Signalization of the S. Mariposa Road/Dougherty Road intersection would improve operations to LOS A. This improvement would bring the impact to aless-than-significant level. The removal of the Dougherty Road / N. Mariposa Drive intersection together with the proposed eastbound left-turn access restriction at Dougherty Road / Ventura Drive will impact bus circulation, especially for the northbound operations. Detailed discussions and recommendations to mitigate the bus circulation impacts are presented under the "On Site Bus Circulation Options" of this report. Additionally, detailed discussions of site access controls are presented under the "Project Site Circulation, Parking and Access Review" section of this report. Page 2 I Report - Tragic Study for the Arroyo Vista Housing Development January 7, 2009 ~f ~~ y~~ City of Dublin -Traffic Study for Arroyo Vista Housing Development Figure rt.. Existing Plus Project Conditions Turning NiovementVolumes 7 Intersection I Intersection 2 Intersection 3 Intersection 4 Intersection 5 Dougherty Rd./Amador Vly. Blvd. Dougherty Rd./Scarlett Dr. Dougherty Rd./Sierra Ln. Dougherty Rd./Dublin Blvd. Dougherty RdJWB I-580 Off-Ram (00 N O O W n (rOM CO ~' O ~" 'D ~ N~- ~~ ~ ' N ~~ ^' ~~~ 1j ,~,~ + (D~~ co ~` o ~ 1 (9) °J ; ~ f-5 (61 I~ t<y - 18 (19) ln~M r~ ? ~ ~ 163 (404) "'i i `,' 1-297 (646) r ~ ~ - 216 (302) fN~3 .rr ~ N i=,.- ~ 552 (579) •' ~ ~. 426 (251) 94 (330 ~ ~ t 330 (312- ~Q %sJ rte, i~~ ~"v ~~ ~ ~~~~6J 31 (88),(R ~ ~I 2 (4)~. m~Q 27 (107)1 ~; ~ 2091853)-~ ~~~ ~ ~I 'l ~ N / E t ~~ ~j 50 (106) ~ ~ti v ~ 285 (528) vQ, ~ ~ ~ ec ~ M O / io o :-' ~" W o~rn ~ .~.- ~0 N ~~ c o N ° Y n ~ C O `~ r NC ~ OM ~ m m ~~ Intersection 6 intersection 7 Intersection 8 Intersection 9 Intersection 10 Hopyard Rd./EB I-580 Off-Ramp Dublin Blvd./Scarlett Dr. Hacienda Dr./Dublin Blvd. Hacienda DrJNVB I-580 OfF-Ram Hacienda Dr/EB I-SBO Off-Ramp M~ ~' (O M '~' N (O ~O~ N.~ NraOi. M~ ~'+ f691 (1,319) ~~ 15(20) ~^ MOB on~i ~n / 40(14) CD~"n' (404(517) ~~~ 1178(196) lON CD t~ `~"~' ~ 3D0 (414) sly ` 531 (304) NCO ptp rln ~ 591 839) ~ r! ( 1,310(995 NN )~! Nf~ ~ ~ 5 (10)~ R) ?~ 821 (1,~28}~- orn 21 (13)~ '-v 43 (239) Ri t ~ 191 (1,114) ------ ~~rn 119(489) ovw yr cc V ~ ~ vo v`°i m 694 (596j-~ 1.093 (583)- I ~ r=r ti min ~N m °r° ~ ~ u~ o~ mvo - , ~o `t r~i ~rn oN Incersection I I Intersection 12 Intersection 13 Intersection 14 LEGEND Dougherty Rd./Ventura Dr Dougherty Rd./N. Mariposa Dr. Dougherty Rd./S. Mariposa Dr Dougherty Rd./Monterey Dr. ~ Study Intersection °o. °_ ~ ~ ~ Project Site Driveway ` 0° XX AM Peak Hour Volume M ~ Does not exist with roject ~~ 1 ~ ~ (XX}PM Peak Hour Volume ~ 24 (15)- ~~ p 33 (20)-~ ~ i ~ 2a 15 ( ) ~ ~ ---' Future Roadwa y ' ~ o ~ 66 (38) ~ ~ M N .I, Right turn volumes don t N ~ ~ ~, ^ M _- ~ ~? ~ go through intersection Project i_ N O R T H Site ~~o- to sale 1 11 ~~o e dP~"~`y 12 8TH ST. BRODER BLVD. P~o~ P~ 13 ~ o GLEASON DR. 'yOs e o; .. 14 ° o . ~ ° ~ a w ° ~ ~ ~' w q~ ~ . - ¢ ~ = !y = !~ -'----------------------- - CENTRAL PKW a Y. ~ ~~ ~ ~ ° v G~ SIERRA LN. ~ S~ERRAL~' 3 7 ~ DUBLIN BLVD. B ~ 4 sc, W ~k<F~ r Qc HACIENO c~ 5 _ ~-~\~ CT. rr~ g cROSS~c :1 JOHNSON DR. 6 OWENSDP.. 1Q 157-DO I T I I S- 4115/OS - DM -~ ,; n, ~;-a~:sUOru.ti~r: ~.ar~su~ar~- Table IV: Peak Hour Intersection Levels of Service -Existing plus Project Conditions Exirting Conditions Existing + Project Conditions ID Signalized Intersection A.M. Peak Hour P.M. Peak Hour A.M. Peak Hour P.M. Peak Hour V/C LOS V/C LOS V/C LOS V/C LOS I Dougherty Road / Amador Valley Boulevard 0.75 C 0.74 C 0.76 C 0.75 C 2 Dougherty Road /Scarlett Drive 0.58 A 0.55 A 0.62 B 0.61 B 3 Dougherty Road /Park Sierra 0.66 B 0.62 B 0.68 B 0.64 B 4 Dougherty Road !Dublin Boulevards --------__-_--------------------------- With City's Capital Improvement Project - ----------- 0:48 - ---- A - ----------- 0.63 - ------ B - -------- 0.49 - ------ B - ----------- 0.63 - ----- B 5 Dougherty Road /Westbound I-580 off- ramp 0.58 A 0.56 A 0.59 A 0.56 A 6 Hopyard Road /Eastbound I-580 off-ramp 0.72 C 0.71 C 0.72 C 0.71 C 7 Dublin Boulevard /Scarlett Drive 0.2 A 0.39 A 0.21 A 0.4 A 8 Hacienda Drive /Dublin Boulevard 0.28 A 0.54 A 0.26 A 0.51 A 9 Hacienda Drive /Westbound I-580 off-ramp 0.34 A 0.44 A 0.34 A 0.44 A 10 Hacienda Drive /Eastbound I-580 off-ramp 0.53 A 0.55 A 0.53 A 0.53 A ID Unsi nalized Intersection A.M. Peak Hour P.M. Peak Hour A.M. Peak Hour P.M. Peak Hour g Delay LOS Delay LOS Delay LOS Delay LOS I I Dougherty Road / Ventura Drivel 0.2(4Z.5) A (E) 0.0 (21.6) A (C) 0.2(1 9.2) A (C) 0. I (I 2.6) A (B) 12 Dougherty Road / N. Mariposa Drive3 0. I (27.7) A (D) 0.1(1 9.5) A (C) - - - - 13 Dougherty Road / S. Mariposa Drivel ------------------------------------------ With Tragic Signals as Mitigation^ 1.2(62.8) ------------ - A (F) ---- - 0.2(22) ------------- - A (C) --------- - 3.7 (91.4) ------------- 0.67 A (F) -------- B 0.8 (23.2) ----------- 0.57 A (C) ---- A 14 Dougherty Road /Monterey Drivel 0.1(18.4) A (C) 0.1(12.2) A (B) 0.2(20.6) A (C) 0.1(12.5) A (B) Notes: LOS =Level of Service V / C =Volume-to-capacity ratio for overall signalized intersection X (X) =Intersection level of service (Level of service for the minor approach) X.X (X.X) =Average delay in seconds per vehicle overall one-way stop-controlled (unsignalized) intersection (Delay in seconds per vehicle to minor approach) Bold values indicate unacceptable LOS conditions City's CIP intersection improvement project is assumed to be complete by the time the Project is developed zReconfigured driveway as proposed in Arroyo Vista project 3lntersection does not exist with project 4Performance measure is v/c Poge 23 Report - Tragic Study for the Arroyo Vista Housing Development January 7, 2009 L[ ~"~ ~~ ~~ Q 1 -i~,`h, "F`ransr:o ~atso;~ Short Term Cumulative (2015) Conditions This section includes the analysis results for 2015 traffic conditions in the study area. Dublin Traffic Model (2015) Assumptions The Dublin Traffic Model (DTM) was used for the future 2015 forecasts. In order to forecast traffic generated by land uses, the DTM divides the region into traffic analysis zones (TAZs), which contain information on existing and/or projected land uses that are located within a particular TAZ. Each TAZ is connected to the adjacent street network via a connector, which provides access to and from the TAZ. Depending on the type of land uses allocated to each zone, the TAZ will generate a certain combination of outbound trips (trip production) and inbound trips (trip attraction) during the analysis period(s). For example, a residential TAZ would generate a net production of trips in the a.m. peak hour and a net attraction of trips in the p.m. peak hour. Conversely, a TAZ that contains office development would generate a net attraction of trips in the a.m. peak hour and a net production of trips in the p.m. peak hour. The expected 2015 land uses for each TAZ within Ciry of Dublin were developed using a linear interpolation between existing 2004 land uses and 2025 Buildout land uses, in consultation with City staff. The CCTA Model 2025 land uses were conservatively assumed for the 20 15 analysis for areas outside the City of Dublin. The TAZ map is contained in Appendix F. Detailed land uses within each TAZ are shown in Table I of Appendix F. Under Short Term Cumulative conditions, the network used in the analysis included arterial extensions and improvements planned in the Tri-Valley Area, including the following: I. Dublin Boulevard between Tassajara Road and North Canyons Parkway at Doolan Road (Eastern Dublin Tragic Impact Fee Program). 2. Fallon Road between existing terminus at the Dublin Ranch Golf Course and Tassajara Road (Eastern Dublin Tra)~ic Impact Fee Program). 3. Central Parkway between Arnold Road and east of Fallon Road (Eastern Dublin Tragic Impact Fee Program). 4. All local and collector roadways in Eastern Dublin within Dublin Ranch and, areas to the west (Eastern Dublin Specific Plan -most are constructed). 5. Planned improvements to the Dougherty Road/Dublin Boulevard intersection and the widening of Dougherty Road from four to six lanes between I-580 to Houston Place (under construction with a completion date in 2008). 6. All improvements identified for the Dublin Transit Center and the Blake Hunt (previously IKEA) retail center (Eastern Dublin Tro)~c Impact Fee Program). 7. Windemere Parkway connection with Camino Tassajara in Contra Costa County (Now open). 8. EI Charro Road between I-580 and Stanley Boulevard (Pleasanton General Plan). 9. Busch Road connection with EI Charro Road (Pleasanton General Plan). 10. Stoneridge Drive connection with EI Charro Road (Pleasanton General Plan). I I . Jack London Boulevard extension between the Livermore Airport area and EI Charro Road ~. (City of Livermore General Plan). I2. Widening of Route 84 (Isabel Avenue and Vallecitos Road) to six lanes north of Stanley Boulevard and four lanes south of Stanley Boulevard and on Vallecitos Road (Fully funded with a target completion date in 2012). Page 24 Report - Tragic Study for the Arroyo Vista Housing Development January 7, 2009 ~~. 5~ ~. ii:4~- ar:;,^a~r;,a,ion :=:or!s~i:a;t~ ' In addition, the following freeway and interchange improvements were also included: • The Phase I Fallon Road/I-580 interchange improvements currently planned by the Cities of Dublin and Pleasanton, and Caltrans (City o fDublin -Now under construction with completion scheduled for 2009). • The I-680/West Las Positas interchange in Pleasanton is not included since Pleasanton has no plans to construct it. • The Isabel (Rt. 84)/1-580 interchange Stage I and II improvements. This includes the removal of ramps at Portola Avenue (Fully funded -Construction is scheduled to occur from 2009 to 2012). • Improvements to I-580 interchanges in Livermore identified in the City of Livermore General Plan at N. Livermore Avenue, N. First Street, Vasco Road and Greenville Road (City o f Livermore General Plan). • Improvement of I-580 between Santa Rita Road/Tassajara Road and Vasco Road to include four mixed flow lanes, one HOV lane and one auxiliary lane in each direction (Fully funded - Construction is scheduled to be complete by 2015). • Construction of the West Dublin/Pleasanton BART station (Under construction -scheduled to be complete by 2010). • No extension of BART facilities east of the existing Dublin/Pleasanton station. • The 2015 network does not assume the planned extension of Scarlett Drive from Dougherty Road to Dublin Boulevard. Therefore Dublin Boulevard/Scarlett Drive is analyzed as a three-leg ("T") intersection. Figure 8 shows the Short Term Cumulative Conditions traffic volume forecasts using the Dublin ` Traffic Model. All planned improvements, including the study intersection lane configurations and traffic control under Short Term Cumulative Conditions, is shown on Figure 9. Page 25 Report - Tragic Study for the Arroyo Vista Housing Development Jonuary 7, 2009 City of Dublin -Traffic Study for Arroyo Vista Housing Development Figure Short Term Cumulative (2015) Conditions Turning Movement Volumes $ Intersection I Intersection 2 Intersection 3 intersection 4 Intersection 5 Dougherty Rd./Amador Vly. Blvd. Dougherty Rd./5carlett Dr. Dougherty Rd./Sierra Ln. Dougherty Rd./Dublin Blvd. Dougherty Rd./WB I-560 O$-Ram _m ~ v N a` ~ ~~ O~ N0~ ~^' M~~ ~~ ~O `/vM ~ crD~-tM N r...~ ~ m W o ~ m N_~ o ~? ~ ~ 11 (30) ~ o,~ X327 (396) a'~ rn ~ w'+ O N E m .- ~ 781 605 r~r ~ ~ ./ f5(6) ~NM f1,427(1.735) ~ ( ) /~ ~ ~ ! ! ~'~ ~'~ 552 410 ~~ sQ or 2, • `_~S ~ ~ y. / 51 (20) r ~ 7- j 278 (650) 352 (345j-~ ~1 ~ ~~~~~`- r~q~~~~sr 40 (100)_}1 Ri ~ (I 164 (206) ~~~r!~ ~ ~ 502 (390)-~ ~ owe ~' ~ ~ ~~'~ 2 (6) ~ o ~ 0 856 (1,158) ~ m v ~ ~ ~cn vo'N ~ 51 (106)71 ~~C. 391 (535)71 ~co v~ ~°r Nv tD UYN [Or Q1 Ovf'~ N~ ~ ` tf3 vm O ~,.~ M M~ N~.~ N~ MOO Ol/] ~ w o ~ n M o ~A intersection 6 Intersection 7 Intersection 8 Intersection 9 Intersection 10 Hopyard Rd.!EB I-580 Off-Ramp Dublin Blvd./5carlett Dr. Hacienda Dr./Dublin Blvd. Hacienda Dr/WB I-580 Off-Ram Hacienda Dr./EB I-580 Off-Ramp O ih ~ r` ,I^co Qp~ v O7 ~ Ltl Q [D (D ~ N W N N ~ co m m c~ -! 118 (27) `8, ~'- ~ ( ) ~ Ni ~~~ ~ li 70 (02'565) ~ ~ ~ ~ 684 (298)2) ~' ~ 314 489 i ~ 1.683 (1,303) 16 (15 ~ 161 (250) 1,190 (610) I 887 (875) ~ ! 1.246 (1,720;~ ~ ~ 445 (1,287)--~ ~~ ~~ 1,100 (590) ,n ~ 1,575(1,095) o oin rnr~~ om ~ ~ 71 Mm 49(60j-~ NV 133(490)71 ~~v a„-. ~m ~c0 0 7 co N ~ ~'•^.• W f~N O (DOO ~~ ~N N ~: ~ O N c'] ~: -A: Intersettion I I Intersection 12 Intersection 13 Intersection 14 LEGEND Dougherty Rd./Ventura Dr. Dougherty Rd.lN. Mariposa Dr. Dougherty Rd./S. Mariposa Dr Dougherty Rd./Monterey Dr. • Study Intersection ~ Project Site Driveway ~ ~ N ~ ~ ~ v~ XX AM Peak HourVolume NN ~N ~i ~+ (XX)PMPeakHourVolume ~'' ~ ' ~ 8 (2j-~ ~~ * 3 (6)~ R; ~ 28 (13)?~ ~,~ 0 (0)~ ! ! --- Future Roadway 1(1)~ ~~ 3(g)_ a~ 16(9)- N~ 8 14 ~~ --,r, +1 ,..o, ~ ~ ~ ( )_~ ~, ~ Right turn volumes don't om my ~v rnv go through intersection ~ ~ o 0 0 Project O S~te,~ 11 ~~ ~ e ~~(cy 8TH ST. BRODER BLVD. F~A 12 a° 13 P ~ P c GLEASON DR. ° Q A SP ' °' o ~ 14 °~ o a 2 ij z ~ ~ ~ ~ S -'-- r .~ •. ~ a O a _ ~ Q = ~1~ -- CENTRAL PKWY. cA I ~ 0 ~~ ti ~ SIERRALN.~~ S~gkRgV~. 3 7~ DUBLIN BLVD. $ 4 sc w J R<Fr ao r HACIENO 5 m v cROSS 9 , tic cr. r... ~ ~( ~'\ JOHNSON DR. ~ \ F~`\ \ 6 OWENS DR. 10 N O R T H No'. to Scale 0 a N 57-001 TI I S - 5/30/OB - DM City of Dublin -TrafFic Study for Arroyo Vista Housing Development Figure Short Term Cumulative (2015) Conditions Lane Configurations andTraffic Controls 9 Intersection I Dougherty Rd./Amador Vly. Blvd. Intersection 2 Dougherty Rd./Scarlett Dr. Intersettion 3 Dougherty Rd./Sierra Ln. Intersection 4 Dougherty Rd./Dublin Blvd. Intersettion 5 Dougherty Rd./WB I-580 Off-Ram o w :~11~. . ~ l ~ t- ~ w w ~ ~y~l ~.~ ~ ~ ~ ~ ~w I I w ' Ovarlap ~ ~ w ~ LL Intersection 6 Hopyard Rd./EB I-580 Off-Ramp Intersection 7 Dublin BIvd.lScarlett Dr. Intersection 8 Hacienda Dr./Dublin Blvd. Intersection 9 Hacienda DrJWB I-580 Of(-Ram Intersection 10 Hacienda Dr./EB I-580 Off-Ramp w w ~ •~~11 ~ ~ ~~ ~ w ~ ' ~~'~11 ~ w x'.11 ~ LL Overlap ~ ~ u- Intersection I I Dougherty Rd./Ventura Dr. Intersection 12 Dougherty Rd./N. Mariposa Dr. intersection 13 Dougherty Rd./S. Mariposa Dr. Intersection I4 Dougherty Rd./Monterey Dr. LEGEND ~ Study Intersection Will not exist with project ~ Project Site Driveway 'Traffic Signal ~~, ~,~, ~,~ If~~, t Stop Sign ,~ ~~ '~ ~ ~ ~ ~r ~ l ~ ~ ~ ~ ~ ~ * r, ~ ~--. + ~ I ----Future Roadway ---- Under No Project Conditions N O RT H Nit [v Scale Project Site 1 11 y~~.10' ,P~~,C. 12 8TH ST. BRODER BLVD. Q- Pao P~ 13 .~ o~ o s~ GLEASON DR. o/ 14 2 .~ 0 0 a ~ z o ~ L QCs c ~' K u^ -' U '9,p --- Q = C~, ~ ~ - --- ----------- w ~ Q Q a - CENTRAL PKWY. ~ A .: 1 ~~L < w o ~ ~ SIERRA LN'~ 3~F ~' T ~ RRA ~- 3 DUBLIN BLVD. ~ a ~ 4 s~ ~~<FT 5 T w ~o ~ HACIEry CROgsO"Q cT. rir 9 tic JOHNSON DR. 6 :1 OWENS DR. 10 157-DO I T 1 15 - 4/ 15106 - DM -11: Tr-zt?s~.3, 4z~i~rt ~:r;sui~an€ Intersection Level of Service Analysis -Short Term Cumulative Conditions Under Short Term Cumulative without Project Conditions, all study intersections are expected to operate at acceptable levels of service except for the following intersections: • The Dougherty Road/Amador Valley Boulevard intersection is expected to operate unacceptably at LOS F during the a.m. peak hour and the p.m. peak hour. Improvements to reduce the impacts at the Dougherty Road/Amador Valley Boulevard intersection to an acceptable LOS would require widening Dougherty Road to include one additional southbound through lane. There are plans to widen the segment of Dougherty Boulevard between Scarlett Drive and the north City Limits after 2015 under the City's Capital Improvement Program (CIP), funded by the Eastern Dublin Traffic Impact Fees. Without the CIP improvements, the Dougherty Road/Amador Valley Boulevard intersection will operate at an unacceptable level of service. It is recommended that the City monitor the intersection for peak hour volumes on a periodic basis and continue to obtain updated forecasts for future years. Such monitoring should be done to assist the City to comply with General Plan policies requiring implementation of transportation measures to improve levels of service. • The Hacienda Drive/Westbound I-580 off-ramp is expected to operate unacceptably at LOS E during the a.m. peak hour. Improvements to reduce the impacts at the Hacienda Drive/Westbound I-580 off-ramp intersection to an acceptable LOS would require widening the westbound off-ramp to include an additional lane, and adding one northbound lane to the overcrossing. As described in the Eastern Dublin Property Owners EIR, there are future plans to widen the Hacienda Drive/I-580 interchange. Without the improvements, which are expected to occur after 2015, the intersection will operate at an unacceptable level of service. Without signalization, eastbound motorists exiting the project driveways along Dougherty Road are expected to experience significant delays due to minimal gaps in traffic needed for safe turns. Table V summarizes peak hour levels of service at all study intersections under Short Term s Cumulative Conditions. LOS worksheets are provided in Appendix G ,~. Page 28 Report - Tragic Study for the Arroyo Vista Housing Development January 7, 2009 ,~, i' ~'. T:"111Si]u'"~ rIOF"i 1.,~~;iUiLdCI~~ Table V: Peak Hour Intersection Levels of Service -Short Term Cumulative Conditions A.M. Peok Hour P.M. Peak Hour ID Signalized Intersection V / C LOS V / C LOS I Dougherty Road / Amador Valley Boulevard I.I I F 1.00 F 2 Dougherty Road /Scarlett Drive 0.82 D 0.61 B 3 Dougherty Road /Park Sierra 0.71 C 0.49 A 4 Dougherty Road /Dublin Boulevard 0.79 C 0.87 D 5 Dougherty Road /Westbound I-580 off-ramp 0.79 C 0.68 B 6 Hopyard Road /Eastbound I-580 off-ramp 0.86 D 0.83 D 7 Dublin Boulevard /Scarlett Drive 0.36 A 0.59 A 8 Hacienda Drive /Dublin Boulevard 0.70 B 0.68 B 9 Hacienda Drive /Westbound I-580 off-ramp 0.99 E 0.82 D 10 Hacienda Drive /Eastbound I-580 off-ramp 0.90 D 0.71 C i li d I U A.M. Peak Hour P.M. Peak Hour ID nsigna ze ntersect on Delay LOS Delay LOS I I Dougherty Road / Ventura Drive 1.5(1 20+) A(F) 0.1(1 20+) A(F) 12 Dougherty Road / N. Mariposa Drive 0.5(1 20+) A(F) 0.5(1 20+) A(F) 13 Dougherty Road / S. Mariposa Drive 17.9(120+) A(F) I.6(I 20+) A(F) 14 Dougherty Road /Monterey Drive 0.1(26.4) A(D) 0.2(16.7) A(C) Notes: LOS =Level of Service V / C =Volume-to-capacity ratio for overall signalized intersection X (X) =Intersection level of service (Level of service for the minor approach) X.X (X.X) =Average delay in seconds per vehicle overall one-way stop-controlled (unsignalized) intersection (Delay in seconds per vehicle to minor approach) Bold values indicate unacceptable LOS conditions Page 2 9 Report - Tragic Study for the Arroyo Vista Housing Development f onuary 7, 2009 ~c~r~ o,~ 861 -~EF~; ~-ar;oo,-;arior ~.PrsSUIL8i1LS Short Term Cumulative plus Project Conditions This scenario is similar to Short Term Cumulative Conditions, but with the addition of net project traffic to assess any traffic impacts at the study intersections. Figure I 0 shows the resulting turning movement volumes at the study intersections under 2015 plus Project conditions. Intersection Level of Service Analysis -Short Term Cumulative plus Project Conditions Table VI summarizes peak hour levels of service at all study intersections under Short Term Cumulative plus Project Conditions. LOS worksheets are provided in Appendix H. Table VI shows Kittle or no change in intersection performance compared with Table V for all study intersections, because the project is expected to add minimal net trips to the roadway network. The intersections of Dougherty Road /Amador Valley Boulevard and Hacienda Drive /Westbound I-580 off-ramp will continue to operate at unacceptable LOS F and LOS E respectively with the addition of the project. The project will increase the volume to capacity (v/c) ratios at the Dougherty Road /Amador Valley Boulevard intersection by 0.01 or less during the a.m. and p.m. peak periods. The level of - service will remain unchanged at LOS F. Although the project contribution is minor, the project will exacerbate an unacceptable condition. Therefore, project impacts are significant but can be mitigated by widening of Dougherty Road. This is a planned CIP project expected to occur after 2015. The project is expected to add less than 10 trips to the Hacienda Drive /Westbound I-580 off-ramp intersection, and the level of service and v/c ratios will remain unchanged. Per the City of "~' Pleasanton Significance criteria, the project impacts are considered less than significant at the Hacienda Drive /Westbound I-580 off-ramp intersection. Impact TR-2 Under Short-term Cumulative (2015) Conditions, the intersection of Dougherty Road/Amador Valley Boulevard would operate at unacceptable LOS F conditions during the a.m. and p.m. peak hours. The addition of project traffic will exacerbate this condition. This impact is significant. Mitigation Measure TR-2 • Roadway modifications to improve operations to LOS D or better include the addition of a southbound through lane. A project has been identified in the City's Capital Improvement Program, the Dougherty Road Improvements Project, to add an additional through lane in .~: both the northbound and southbound directions on Dougherty Road from the existing six- . lane cross-section to the south to the northern City Limit. The improvements are planned to be funded by fees collected through the Eastern Dublin Traffic Impact Fee (EDTIF) program. Since the Arroyo Vista project is not contained within the EDTIF program area, the Project applicant shall instead make a fair share payment toward the cost of this roadway widening. While construction of these improvements would reduce the impact to aless-than-significant level, because the improvements will likely not be complete by 2015, the impact remains significant and unavoidable. It should be noted that this impact would be temporary until an additional southbound lane is constructed as part of the Dougherty Road Improvements CIP project. It is recommended that the City monitor the intersection ~* for peak hour volumes on a periodic basis and continue to obtain updated forecasts for future years. Such monitoring should be done to assist the City to comply with General Plan policies requiring implementation of transportation measures to improve levels of service. Page 30 Report -Traffic Study for the Arroyo Vista Housing Development January 7, 2009 ,~ yL~"1 0~ g o ~ 14: r Eastbound motorists exiting the Dougherty Road/S. Mariposa (Intersection 13) driveway are expected to experience excessive delays due to minimal gaps in traffic needed for safe turns. Impact TR-3 Under Short-term Cumulative (20 15) Conditions, side-street traffic on S. Mariposa Road at Dougherty Road experiences unacceptable LOS F conditions during the a.m. and p.m. peak hours. The addition of project traffic would exacerbate this condition. This impact is significant. Mitigation Measure TR-3 Signalization of the S. Mariposa Road/Dougherty Road intersection would improve operations to LOS C during the a.m. peak hour and LOS A during the p.m. peak hour. This improvement would bring the impact to aless-than-significant level. Table VI: Peak Hour Intersection Levels of Service -Short Term Cumulative plus Project Conditions Short Term Cumulative Conditions Short Term Cumulative plus Project Conditions ID Signalized Intersection A,M. Peak Hour P.M. Peak Hour A.M. Peak Hour P.M. Peak Hour V/C LOS V/C LOS V/C LOS V/C LOS I Dougherty Rd. / Amador Valley Blvd. I .I I F 1.00 F I.1 I F 1.01 F 2 Dougherty Rd. / Scarlett Drive 0.82 D 0.61 B 0.82 D 0.63 A 3 Dougherty Rd. /Park Sierra 0.71 C 0.49 A 0.71 C 0.5 A 4 Dougherty Rd. /Dublin Blvd. 0.79 C 0.87 D 0.8 C 0.87 D 5 Dougherty Rd. / WB I-580 off-ramp 0.79 C 0.68 B 0.81 D 0.68 B 6 Hopyard Rd. / EB I-580 off-ramp 0.86 D 0.83 D 0.86 D 0.68 B 7 Dublin Blvd. / Scarlett Drive 0.36 A 0.59 A 0.36 A 0.6 A 8 Hacienda Drive /Dublin Blvd. 0.7 B 0.68 B 0.7 B 0.68 B 9 Hacienda Dr. / WB I-580 off-ramp 0.99 E 0.82 D 0.99 E 0.62 D 10 Hacienda Drive / EB I-580 off-ramp 0.9 D 0.71 C 0.9 D 0.71 C i A.M. Peak Hour P.M. Peok Hour A.M. Peak Hour P.M. Peak Hour ID on Unsignalized Intersect Delay LOS Delay LOS Delay LOS Delay LOS I I Dougherty Rd. / Ventura Dr.~ 1.5(1 20+) A(F) 0. I (I 20+) A(F) 0.2(28.8) A(D) 0.1(16.9) A(C) 12 Dougherty Rd. / N. Mariposa Dr? 0.5(120+) A(F) 0.5(120+) A(F) - - - - 3 Dougherty Rd. / S. Mariposa Dr. ~ ----------------------------------------------- With tra)~ic signals as mitigation3 17.9(120+) - A(F) ------ - 1.6(1 20+) ----------- - A(F) ------ - 57.5(120+) ------------ 0.8 F(F) ------ C 12. I (120+) -------------- 0.59 B(F) ----- A 14 Dougherty Rd. /Monterey Dr.~ 0.1(26.4) A(D) 0.2(16.7) A(C) 0.2(30.7) A(D) 0.1(17.2) A(C)' Notes: LOS =Level of Service V / C =Volume-to-capacity ratio for overall signalized intersection X (X) =Intersection level of service (Level of service for the minor approach) X.X (X.X) =Average delay in seconds per vehicle overall one-way stop-controlled (unsignalized) intersection (Delay in seconds per vehicle to minor approach) Bold values indicate unacceptable LOS conditions Reconfigured driveway under project conditions Zlntersection does not exist with project 3Performance measure is V / C Page 3 I Report - Tragic Study for the Arroyo Vista Housing Development January 7, 2009 City of Dublin -Traffic Study for Arroyo Vista Housing Development Figure Short Term Cumulative (201 S} Plus Project Conditions l 0 Turning Movement Volumes ,~.. Intersection I Intersection 2 Intersection 3 Intersection 4 Intersection 5 Dougherty Rd./Amador Vly. Blvd. Dougherty Rd./Scarlett Dr Dougherty Rd./Sierra Ln. Doughercy Rd./Dublin Blvd. Dougherty Rd./WB I-580 Off-Ram O ~ fV M ~ ~ ^. ~ ~ ~ ' v NO.~- n^~ `„N O~V, o ~ ~ ~ `•°- ~ ~.~n ~ .11 (30) N o ~ ~ 327 (4D6) e °r ~ 781 (611) M~ '~ •L * °',`~~ f-5(6) ~ac~ ('1,427(1,735) ,K~ 552(410) ~ ~, o~'a~ ~ ~ ~s r' ~ r -~ 51 (20) r' ~ 278 (650) 1 352 (345)! ~I~ (Q°il~ u4i~~2oi 40 (1D1)~(r ~ ~ 164 (226) R,~~!' ~ ~ 502(401) NN ~ /2~ 2(6'I~oo~o 856(1,158)--~~~ ~~ ~ a°i., ~ ` ! 51 (106j~ ~~'_- 391 (535) ~~~ ?° m ~ ~rn = vii ~rn o ter. ~V ~O> c~v %in N~ ~ ~ LfJ M ~NO~ ~M Intersection 6 Intersection 7 Intersection 8 Intersettion 9 Intersection 10 Hopyard Rd./EB I-580 Off-Ramp Dublin Blvd./Scarlett Dr. Hacienda Dr./Dublin Blvd. Hacienda Dr.IW6 I-580 Off-Ram Hacienda Dr./EB I-580 Off-Ramp ~ ~ y^ invco ~V ~Y o~ c°ioa°'om R 118(27) ~'-~ ~ ( ) rn~ ~,~ ~f-1,431 (2.577) mO"° i-1,323(857) ~ 314 489 c~ r (~ 70 (70) i ~ ~}- X684 (298) ~ ~ 1,683 (1,303) ~ 16 (16)?~ R r' 162 (250)_7 ~ t?~ 1,190 (610) 888 (882)-71 `~ 1.247 (1,720)-~- ~ ~ 450 (1,288)-_~ ~ --:.-. ~'~, 1,101 (591)-~ ~~ 1,575(1,095) ~M 49(60) ~ N~ 136(491) ~ ~~~ m^? ,~,~ ~o X00 O> C' O7 N r- ~ ~ O p~~ O (DOO M r. N r' N, N ~; to W N ,F Intersection I I Intersection 12 Intersection 13 Intersection 14 LEGEND Dougherty Rd./Ventura Dc Dougherty Rd./N. Mariposa Dr. Dougherty Rd./S. Mariposa Dc Dougherty Rd./Monterey Dr. o • Study Intersection ~_ ~ ~ Project Site Driveway ~, <^~ N XX AM Peal< HourVolume N ~ N N N (XX) PM Peak Hour Volume L' + Does not exist with projett ~' + ~~ f 24 (15) R,~ 33 (20) _71 ~~ 24 (15)-~ ! ---- Future Roadway ~ '~ 66 (38j -~ ~ ~ ~ ~ Right turn volumes don't N ~_ ~; ~ go through intersection ~ o v in _~ NORTH PI"O~eGt Not to Scale we, Site 1 11 ~~o u~y~ 8TH ST. BRODER BLVD. e-~P~ 12 Pc° 13 ~ P~ „~ GLEASON DR. ~., o. ~'e ~ ~ .. '' '• 14 ° ° O 2 - J } - ° ~~G ~ ~ 9~~~~ CENTRAL PKWY. 4 ---------------------z z~ SIERRA LN. ~ ~ ~ S~EF~RALa~ $ 7 ~ DUBLIN BLVD. $ ~ 4 s CT. ~~ I 9 JOHNSON DR. 8 OWENS DR. 10 157-001 T I I S - 5130106 - DM C{lfc~ D-~ 8p~ -if~~ `s ~ anspc aciar: ~o~suitant:, Long Term Cumulative Conditions This section includes analysis results for 2025 traffic conditions in the study area (buildout under the General Plan), and assumes the development of the potential 180-acre Camp Parks Redevelopment Project (Dublin Crossing). The 180-acre Camp Parks site is a portion of the RFTA site bounded by Scarlett Drive to the west, Dublin Road to the south, Arnold Road to the east and the extension of Central Parkway to the north. At the time of preparation of this report, the most reasonable foreseeable use of the site includes the following mixed-uses: 1,996 residential units, 196,000 square feet (sq. ft.) of retail, 196,000 sq. ft. of campus office, 117,000 sq. ft. of civic uses, plus provisions for open-space and school uses. Dublin Traffic Model (2025) Assumptions The DTM was used for the future 2025 forecasts. A description of the model development is contained in the Buildout (2015) Conditions section of this report. Both the 2015 and 2025 models have similar roadway networks and assume arterial extensions and improvements planned in the Tri Valley Area. However, in addition to the 2015 base network, the following improvements are also included in the 2025 network: • Currently, there is only one access to Camp Parks off Dublin Boulevard. Two gates along Arnold Road are closed for security reasons. Camp Parks plans to relocate the existing Camp Parks access at Dublin Boulevard/Camp Parks Boulevard to the intersection of Dougherty Road/Amador Valley Boulevard to form afour-leg intersection. The study assumes that this relocation will be completed by 2025 concurrent with the Camp Parks Redevelopment Project. • The Ciry plans to extend Scarlett Drive from Dougherty Road to Dublin Boulevard. The study assumes that this extension will be completed by 2025. Therefore, Dublin Boulevard/Scarlett Drive is analyzed as a four-leg intersection under 2025 Conditions (Eastern Dublin Tragic Impact Fee Program). • It is assumed that Central Parkway would be extended westerly concurrent with the Camp Parks Redevelopment Project. For this analysis, it was assumed that it would connect with Dougherty Road north of where Scarlett Drive intersects Dougherty Road. The intersection will be limited to a right-in/right-out access. The actual alignment may differ but will be studied as part of future studies for the Camp Parks Redevelopment Project. • The widening of Dougherty Road from four to six lanes between Houston Place and the north City Limits (Eastern Dublin Tro~c Impact Fee Program). ' • As described in the Eastern Dublin Property Owners EIR, the Hacienda Road / I-580 interchange will be widened by adding one lane to the eastbound and westbound off-ramps and one northbound lane to the overcrossing (Eastern Dublin Tro~c Impact Fee Program). Figure I I shows the resulting turning movement volumes at the study intersections under the Long Term Cumulative Conditions. Figure 12 shows the lane configurations and traffic controls that are planned/programmed under the City of Dublin Capital Improvement Program (CIP), and which are consistent with the City's Traffic Impact Fee (TIF) Program. Page 33 Report - Tragic Study for the Arroyo Vista Housing Development January 7, 2009 ~~~~ -~~ ~ City of Dublin -Traffic Study for Arroyo Vista Housing Development Figure Long Term Cumulative (2025) Conditions Turning Movement Volumes I I Intersection I Intersection 2 Intersection 3 Intersection 4 Intersection 5 Dougherty Rd./AmadorVly. Blvd. Dougherty Rd./Scarlett Dr. Dougherty Rd./Sierra Ln. Dougherty Rd./Dublin Blvd. Dougherty Rd.M/B I-580 Off-Ram N rn ~ o ~ N M N~ ~~ ~ ~ ~~ N-r°' -, 5(27} ~c~v,M oM~ .-..rnv ~n~ i.n rn o o N n ch ~! m R_...12 (32) a o X102 (62) ~ ,,,,-~- ,...25(370) a, .~~„ ~-N`' ~--5(6) NNm ~-1,650(1,670) °'~ R--589(89,5) l„ - 25 188 a /.? t i i ~ ~ ~; 565 (420) I _~ _ (_ ) ~/~~/ s~ ~ ~~ ~~o r ~ ~i. Ir 53 (113} • ~ ~ ,324 (780) 380 (350) ~, t ~' e, s,///2 41 (112),/ R l ~ 175 264) ~ ~ 15 (10)-- ^._•_ ~~ /„Q 9Dl 2 (g ~, i^ 1,228 1450))--- ~ ~~ ~~ otno ~ ~1 / rnN 7 ( w0 597 (395)~t ~ -vs o ^ 0 51 (106 ~ n,~ ~, 394 (580 -~ rn ~ ~ `7 ~ ~~m ~ti ~~ u~~.o ~~o ~`-'o o~co r-, ~ NN'- N~-Q) gj~ tom') N°N ~' ~ N n~ ~ _N N _ Intersection 6 Intersection 7 Intersection 8 Intersection 9 Intersection 10 Hopyard Rd./EB I-580 Off-Ramp Dublin Blvd./Scarlett Dr. Hacienda Dr./Dublin Blvd. Hacienda DrpJWB I-560 Off-Ram Hacienda Dr./EB I-580 Off-Ramp "k ~ r.t~ N ~ _ (") ~ In ~ `~ rn ti o N N ~ -.__361 742) ~ ~ `J ~L.164 (34) R ~ ~- `f ~" '~--1,98 (2,257) "'I" `O ~- 1,654 (1,134) ~' ~ 1 6904(10,305) ~N ~~ ~ a~ ~ ~-. ~ /~73 (75) .~ ~ ~. Ir710 (575) -~ 920 880 ! / * 1~ 20 (70) ±~ ~l t ~ 170 (255) r'1 t ~ ~. 1,450 (880) w ( ) 2,104 (1,830 -~ ^^^ 564 ((1,438 -- ^^^ 1145 (599) o 1,584(1164}~ Nm 52(65j~ N`='ti 29b(491;~{ vao~ °~~ ~ "~co N ~ ~M `- v O .N~.r. nj .... ~V' r' ~lON In 1.!) N~ N* ~~ ~~: Intersection I I Intersection 12 Intersection 13 Intersection 14 LEGEND Dougherty Rd./Ventura Dr Dougherty Rd.lN. Mariposa Dr Dougherty Rd./S. Mariposa Dr. Dougherty Rd./Monterey Dr. • Study Intersection °' °' °'. ~ Project Site Driveway m ~ ~~ ~ XX AM Peak Hour Volume ~ vcO -- M NN ~+ ~+ ~+ (XX)PM Peak Hour Volume ~ + R • ~ ---- Future Roadway 8 (2)~ ~ ~ 3 (6) ~/ ~~ 28 (13)~ .-!.:. 0 (0)_.7~ ' 1 (1)~ ~~ 3 (6)~ ° 0 16 (9)-~ ~ 0 8 (14 -~ vo ~ Right turn volumes don't ° ~ ~ V °~ ~ °' N, go through intersection N ~ N O m M ~ ~ M NORTH Not to Scaie Project d Relocated $Ite ~ Camp Parks 1 ~ Aecess r' 11 ~O ~ ~~y~ ` 8TH ST . BRODER BLVD. ~sP ' 0 12 ~~ S 13 . FM ~ GLEASON DR. o~ o . s P ~,; . 14 ~ o 2 ° z o w ~ ~~~yy e i ~~ '--------------------- --- CENTRAL PKWY ~ A I\ ~ 4r ~ ~ ~ O ~ ~ ~ ~ ~y ~~- SIFRRALa~ ~ SIERRALN 7' ''. DUBLIN BLVD. B C ~ $ "~ 4 s O ~ ~R(P ~ a° HACIENO $ U CROSS 9 ~ 9 ~~ - CT. ri.r ~ :1 JOHNSON DR. `\ 6 OWENS DR. 10 57-001 T I I S - 4/7108 - DM ~. City of Dublin -Traffic Study for Arroyo Vista Housing Development Long Term Cumulative (2025) Conditions Lane Configurations and Traffic Controls Intersettion 4 Dougherty Rd./Dublin Blvd. t- Intersection 1 y Rd./Amador Vly. Blvd ~` SPLIT -::1 • SPLIT ~ •~~ Intersection 6 yard Rd./EB I-580 Off-Ramp w •~~:1 ::, ... ~ ; tt~, Intersection I I terry Rd./Ventura Dr. X11 ,~ •, 1 Intersection 2 Dougherty Rd./Scarlett Dr. 0 w :~111~• hit **~~ i Intersection 7 Dublin Blvd./Scarlett Dr. Overlap ~ ~.~• ~~~~ Intersection 12 ~ugherry Rd./N. Mariposa Dr. Will not exist with projett X111 ~ttt Intersection 3 Dougherty Rd./Sierra Ln. ~b1~.. ~J~tt'~ --- Intersection 8 Hacienda Dr/Dublin Blvd. •~111~ ~R ~~ I~~~~ Intersection 13 rtv Rd./S. Mariposa Dr. X11 -~ ~~ t tt Project d Relocated $Ite ~ Camp Parks 1 ~ Access OVERLAP Intersection 9 Hacienda Dr/W8 I-580 Off- w •~~11 :; i.~. ~. ttt~` w Intersection 14 X11 -,~.-... "''til Figure 12 Intersection 5 i RdJWB I-580 w ~J~11 .: ,~ ~u i '~/ ~~ fw LL Intersection 10 Hacienda Dr./EB I-580 Off-Ramp w •~ 111 :, ... tt~~' LEGEND Dr. - • Study Intersection ~ Project Site Driveway Traffic Signal ~ Stop Sign ----i-Under No Project Conditions N O RT H Not to Scal= ~~~ ~y0 8TH ST. R~P~~ 12 ~qo~ 13 P ~` Pl. '~ 14 0 K O 2 0 ~' ~ ~°q -'-. a ---_ Q I ________________________ P cq ~ ~ ~~ . ~~ `~ ~ SIERRALN.'~ / S/ERfZgL~~ 3 7' DUBLIN BLVD. 4 sc w 9 -' p_ 5~<Fr~~ U o ~Cn \ N CT. ~~ JOHNSON DR. OWENS DR. BRODER BLVD. GLEASON DR. 0 O W U 2 CENTRAL PKWY. HACIE/y~ CROSS 9 9 ti c ~~ 10 d a 157-001 T I 15.5/30/08 - DM -1 ~~. ~ f-ar~snc"Laci~r ~ns~fi.a~ ~*_„ ~I h~2 ~~ ~0- .. Intersection Level of Service Analysis-- Long Term Cumulative Conditions As previously mentioned, this scenario assumes the development of the potential Camp Parks Redevelopment Project (Dublin Crossing). As a part of the future acquisition of a portion of the RFTA site by a private developer for amixed-use development, the main access to the existing RFTA located at Dublin Boulevard/Camp Parks Boulevard will be relocated to Dougherty Road/Amador Valley Boulevard to form the fourth leg of the intersection. Therefore Dougherty Road/Amador Valley Boulevard is analyzed as a four-leg intersection. Under Long Term Cumulative Conditions with the completion of the planned City of Dublin Capital Improvement Projects, all study intersections are expected to operate at acceptable levels of service except for the following intersections: • Dougherty Road/Amador Valley Boulevard is expected to continue to operate unacceptably ~" at LOS E during the a.m. and p.m. peak hours. Additional improvements to reduce the impacts at the Dougherty Road/Amador Valley Boulevard intersection to an acceptable LOS would require adding an exclusive southbound right-turn lane, which requires an ~~ additional right-of-way acquisition beyond what is planned for the CIP. Without the additional right-of way, the Dougherty Road/Amador Valley Boulevard. intersection would operate at an unacceptable level of service. It is recommended that the City monitor the intersection for peak hour volumes on a periodic basis and continue to obtain updated forecasts for future years. Such monitoring should be done to assist the City to comply "~" with General Plan policies requiring implementation of transportation measures to improve levels of service. Additionally, under a reconfigured Dougherty Road/Amador Valley Boulevard four-way ~. intersection, a shared eastbound through/left-turn lane and aright-turn lane are required to accommodate ingress for Camp Parks. The eastbound and westbound approaches to the ,~: .intersection will need to operate with "split" traffic signal phasing because of the shared eastbound through/left-turn lane. As noted in the introduction to this section, this scenario includes adding a fourth leg to the intersection to accommodate the relocated Camp Parks entrance. In a subsequent section to this report, a separate analysis is made of the effects of this relocated entrance. The analysis shows that this intersection would operate acceptably without the fourth "' (Camp Parks) leg, with or without the Arroyo Vista project, and the southbound right turn ~~- lane would not be required. • Dougherty Road/Dublin Boulevard is expected to operate unacceptably at LOS E during the p.m. peak hour. No additional lanes beyond those in the current construction project ""' are likely to be feasible due to physical constraints. It is recommended that the City monitor the intersection for peak hour volumes on a periodic basis and continue to obtain updated forecasts for future years. Such monitoring should be done to assist the City to comply with General Plan policies requiring implementation of transportation measures to improve levels of service. In addition, current and future phases of the I-580 Smart Corridor Project will likely relieve some congestion at the Dougherty Road/Dublin Boulevard intersection through Intelligent Transportation Systems (ITS) measures and discourage traffic from diverting off the freeway due to congestion or incidents. Therefore, "~'" the Dougherty Road/Dublin Boulevard intersection will continue to operate at an unacceptable level of service. Page 36 Report - Tragic Study for the Arroyo Vrsta Housing Development January 7, X009 X53 ~ ~n~ - an;[;~ ~a~ian ~~raui~r,tw • It should be noted that eastbound motorists exiting the project driveways along Dougherty Road are expected to experience significant delays due to minimal gaps in traffic needed for safe turns. Table VII summarizes peak hour levels of service at all study intersections under Long Term Cumulative Conditions. LOS worksheets are provided in Appendix I. Table VII: Peak Hour Intersection Levels of Service -Long Term Cumulative Conditions A.M. Peak Hour P.M. Peak Hour ID Signalized Intersection V / C LOS V / C LOS I Dougherty Road / Amador Valley Boulevard 0.91 E 0.95 E 2 Dougherty Road /Scarlett Drive 0.57 A 0.73 C 3 Dougherty Road /Park Sierra 0.70 B 0.52 A 4 Dougherty Road /Dublin Boulevard 0.80 C 0.94 E 5 Dougherty Road /Westbound I-580 off-ramp 0.55 A 0.78 C 6 Hopyard Road /Eastbound I-580 off-ramp 0.87 D 0.88 D 7 Dublin Boulevard /Scarlett Drive 0.78 C 0.81 D 8 Hacienda Drive /Dublin Boulevard 0.87 D 0.82 D 9 Hacienda Drive /Westbound I-580 off-ramp 0.88 D 0.75 C 10 Hacienda Drive /Eastbound I-580 off-ramp 0.81 D 0.71 C ID li d I i U i A.M. Peak Hour P.M. Peak Hour ntersect on ns gna ze Delay LOS Delay LOS I I Dougherty Road / Ventura Drive 0.3(120+) A(F) 0.0(35.6) A(E) 12 Dougherty Road / N. Mariposa Drive 0. I (68.3) A(F) 0.1(31.8) A(D) 13 Dougherty Road / S. Mariposa Drive 3.1(120+) A(F) 0.3(38.4) A(E) 14 Dougherty Road /Monterey Drive 0. I (30.0) A(D) 0.2(16.8) AI Notes: LOS =Level of Service V / C =Volume-to-capacity ratio for overall signalized intersection X (X) =Intersection level of service (Level of service for the minor approach) X.X (X.X) =Average delay in seconds per vehicle overall one-way stop-controlled (unsignalized) intersection (Delay in seconds per vehicle to minor approach) Bold values indicate unacceptable LOS conditions Page 3 7 Report - Tragic Study for the Arroyo Vista Housing Development January 7, 2009 ~~ x ~ ~~~~~;~~.o~ ~c~nsufcant ~f tr-f a ~ 8 bl Long Term Cumulative plus Project Conditions This scenario is similar to Long Term Cumulative Conditions, but with the addition of net project traffic to assess any traffic impacts at the study intersections. Figure 13 shows the resulting turning movement volumes at the study intersections under 2025 conditions. Intersection Level of Service Analysis -Long Term Cumulative plus Project Conditions Table VIII summarizes peak hour levels of service at all study intersections under Long Term Cumulative plus Project Conditions. LOS worksheets are provided in Appendix J. Table VIII shows little or no change in intersection performance compared with Table VII for all study intersections, because the project is expected to add minimal net trips to the roadway network. The intersections of Dougherty Road /Amador Valley Boulevard, Dublin Boulevard / Dougherty Road and Dougherty Road/S. Mariposa driveway will continue to operate at unacceptable LOS E or worse after the construction of improvements programmed under the City's Capital Improvement Program, funded by Eastern Dublin Traffic Impact Fees. Details of these three intersections follow: As noted in the Long Term Cumulative scenario, the intersection of Dougherty Road/Amador Valley Boulevard operates at an unacceptable LOS E condition during both the a.m. and p.m. peak periods. With project traffic added, the v/c rating stays the same in the morning (0.9 I) and increases by 0.0 I to 0.96 in the p.m. period. However, as noted previously, this intersection will operate acceptably until and if the Camp Parks entrance is relocated as the fourth leg. Impact TR-4 The assumed relocation of the Camp Parks access onto Dougherty Road opposite Amador Valley Road results in the Dougherty Road/Amador Valley Boulevard-Camp Parks intersection operating at an unacceptable LOS E during the a.m. and p.m. peak hours under Long-term Cumulative (2025) Conditions. The addition of project traffic would exacerbate this condition. This impact is significant. Mitigation Measure TR-4 The Long-term Cumulative scenario assumes that the Dougherty Road Improvement CIP project is complete. Additional intersection modifications required to improve operations to LOS D or better include the addition of a southbound right-turn lane and modification of the traffic signal system to accommodate split phasing for the eastbound and westbound approaches. It should be noted that if Camp Parks access is not relocated opposite Amador Valley Boulevard, then this significant project impact will not occur. Even with the relocation of access to this location, the City will not have the authority to require the Army to construct improvements to the Dougherty Road/Amador Valley Boulevard intersection. Therefore, the potential impact remains significant and unavoidable. It is recommended that the City monitor the intersection for peak hour volumes on a periodic basis and continue to obtain updated forecasts for future years. Such monitoring should be done to assist the City to comply with General Plan policies requiring implementation of transportation measures to improve levels of service. • The unacceptable conditions at the intersection of Dougherty Road/Dublin Boulevard are exacerbated by the Arroyo Vista project. No additional lanes beyond those in the current construction project are likely to be feasible due to physical constraints. Therefore, the impacts are significant and unavoidable. Page 38 Report -Traffic Study for the Arroyo Vista Housing Development January 7, 2009 ~r~s o¢ go ~ ~.,,` C'ons~itan Impact TR-5 Under Long-term Cumulative (2025) Conditions, the Dublin Boulevard/Dougherty Road intersection would operate at an unacceptable LOS E during the p.m. peak hour. The addition of project traffic will exacerbate this condition. This impact is significant. Mitigation Measure TR-5 A CIP project is near complete at the Dublin Boulevard/Dougherty Road intersection. Businesses were relocated and right-of-way was acquired to accommodate the improvements, which include the addition of a third northbound left-turn lane, a third northbound through lane, two exclusive northbound right-turn lanes, a second eastbound left-turn lane, a third eastbound through lane, a second eastbound right-turn lane, a fourth southbound through lane, a third westbound left-turn lane, and a third westbound through lane. These improvements are assumed complete under the Short-term Cumulative and long-term Cumulative scenarios. To improve operations in the future to LOS D or better during the p.m. peak hour, a fourth northbound left-turn lane would be required. This modification is considered not feasible because of the potential safety implication of such a configuration. This impact remains significant and unavoidable. The City shall continue to monitor the operation at this intersection on a periodic basis. Such monitoring will assist the City to comply with General Plan policies requiring implementation of transportation measures to improve levels of service. Current and future phases of the I-580 Smart Corridor Project will likely relieve some congestion at the Dublin Boulevard/Dougherty Road intersection through Intelligent Transportation Systems (ITS) measures and discourage traffic from diverting off of the freeway due to congestion or incidents. Eastbound motorists exiting the Dougherty Road/S. Mariposa driveway are expected to experience excessive delays due to minimal gaps in traffic. Impact TR-6 Under Long-term Cumulative (2025) Conditions, side-street traffic on S. Mariposa driveway at Dougherty Road experiences unacceptable LOS F conditions during the a.m. peak hour and LOS E conditions during the p.m. peak hour. The addition of project traffic would exacerbate this condition. This impact would be significant Mitigation Measure TR-6 Signalization of the S. Mariposa driveway/Dougherty Road intersection would improve operations to LOS B during the a.m. peak hour and LOS A during the p.m. peak hour. This improvement would bring the impact to aless-than-significant level. Page 39 Report - Tragic Study for the Arroyo Visto Housing Development January 7, 2009 City of Dublin -Traffic Study for Arroyo Vista Housing Development ~ Figure Long Term Cumulative (2025) Plus Project Conditions ~ 3 Turning Movement Volumes Intersection I Dougherty Rd./Amador Vly. Blv~ N -~N N ~ vV1 N~~ R_5f27) v,.°-' ° f25 (370) r'r~y 1 25(188) 380 (350)?1 ~I t r- 15 10 -- 597 (406)~Y c v~ ~O m o MMN Intersettion 6 Hoovard Rd./EB I-580 OH-Ram ~V ~~ ~~ ~ 921 (887)-~ ~ ~ 1,584 (1164) Mrn o, ~V V ~ V N %k Intersection I I Dougherty Rd./Ventura Dr. ~r M N < f 24 (15) ~~l ~ o co N N N V N V intersection 2 Dougherty Rd.(Scarlett Dr. m M "-. ~m ~ ~ P v~ [D 47 N M q vQ ;' ~~ °J w 4 ~/ mrnn r ~ ~. N ~ fCD N _N Intersection 7 Dublin Blvd./Scarlett Dr. -moo (il .- O tD 1~ , v ~- -~ , o N M ~' 361 (742) T'-'~ '1,988 (2,269) 20(71)~~t~+ 105 (1,830)-+~ 52 (65) Y N =~_ .,M ~- ~ V O Rd,/N. Mariposa Dr. Does not exist with project Intersection 3 Intersection 4 herty Rd.ISierra Ln: Dou¢herty Rd./Dublin Blvd. N~~ ^~ -- N cq N ~ ~! 12 (32} . r vi o ~ ~ - 102 72 ~'~ I~ ~ ~-. +5(6) - 53 (113) °'Ni^m I~ ~ S- ~-1,650(1,670; 1324 (780) 41 (113),1 R 4. ~I 175 (284) ~: !~ 51 (106) rn~c ~~n 1,228(1,450)~- 394 (580) amN ~rn~ IfJ ~--- M I~ ""O NC's N ~~ NU~0~7 N Intersection B Hacienda Dr./Dublin Blvd. Intersection 9 Hacienda DrJWB I-560 Off-RamF o N ~ to ~M '`~ ~ ~ N `~° ~ ~ - 164 (34) °"-tO ~+-1,654 (1,139) <' tr ~ - 710 (575) 171 (255) ~ 'Rl t 569(1,439)-i ~~~ 293 (492j ~ ~ ~ C ~- c{ O 1~fl O N Intersection 13 Dougherty Rd./S. Mariposa Dr. 0 ~~ o~ `.~ ~ N 33 (20)_~ ~~ 66 (38)-Y ~ o 0 M .N... N C-) p M M ~ 360(490) ~ i 1,690 (1,305) N r ~w Project $ Ite d ~ Relocated ,Camp Parks 1 ~% .Access 11 ~o ~ Eye ~ 8TH ST. ~~P ° 12 PO P 13 r' s ~ '° ~ ~~ ` 14 ~ 2 ` 0 S ° v ~ °9 ~~4 9C ~~' A (u ~ ~ .~ O SIERRA LN.'~ Sr~RRq~a 3 7 ~ DUBLIN BLVD. 4 ~^ W yR ? <F~ o CT. JOHNSON DR. OWENS DR. Intersection 5 Rd./WB I-580 ~ ... in ~ ~ ~ 589(901) <" ~ ~ 565 (420) c .- (V N M W ~ ~ -k Intersection 10 Hacienda Dr./EB I-580 ON-Ra oa 00 ~ N 1.450 (880) ~ 1,146 (60D)- Y ~~ ~v Intersection 14 LEGEND gherry Rd./Monterey Dr. ~ Study intersection °~° (~ Project Site Driveway ~ XX AM Peal< Hour Volume ~~ (XX)PM Peak Hour Volume J 24 (15)~ ~ ---- Future Roadway Right turn volumes don't go through intersection C` 1 C`7 NORTH Not to Scale BRODER BLVD. GLEASO N DR. 0 O Z O w ~ U Q CENTRAL PKWY. `~ Q d 8 N F S 0 ~Y;. eaR 157-001 T I I S - 4/7/08 - DM i!~!1` 7. ans^o: u.t;or: omui;.a~t~ Table VII1: Peak Hour Intersection Levels of Service -Long Term Cumulative plus Project Conditions Long Term Cumulative Conditions Long Term Cumulative + Project Conditions ID Signalized Intersection A.M. Peok Hour P.M. Peak Hour A.M. Peak Hour P.M. Peak Hour V/C LOS V!C LOS V/C LOS V/C LOS I Dougherty Road / Amador Valley Boulevard 0.91 E 0.95 E 0.91 E 0.96 E 2 Dougherty Road / Scarlett Drive 0.57 A 0.73 C 0.58 A 0.75 C ' 3 Dougherty Road /Park Sierra 0.7 B 0.52 A 0.71 C 0.53 A 4 Dougherty Road /Dublin Boulevard 0.8 C 0.94 E 0.81 D 0.95 E 'S Dougherty Road /Westbound I-580 off-ramp 0.55 A 0.78 C 0.55 B 0.79 C 6 Hopyard Road /Eastbound I-580 off-ramp 0.87 D 0.88 D 0.87 D 0.88 D 7 Dublin Boulevard / Scarlett Drive 0.78 C 0.81 D 0.78 C 0.81 D 8 Hacienda Drive /Dublin Boulevard 0.87 D 0.82 D 0.87 D 0.82 D 9 Hacienda Drive /Westbound I-580 off-ramp 0.88 D 0.75 C 0.88 D 0.75 C 10 Hacienda Drive /Eastbound I-580 off-ramp 0.81 D 0.71 C 0.81 D 0.72 C ID Unsignalized Intersection A.M. Peak Hour P.M. Peak Hour A.M. Peak Hour P.M. Peak Hour Delay LOS Delay LOS Delay LOS Delay LOS I I Dougherty Road / Ventura Drives 0.3(1 20+) A(F) 0.0(35.6) A(E) 0.1(27,8) A(D) 0. I (I 6.8) A(C) 12 Dougherty Road / N. Mariposa Drivel 0. I (68.3) A(F) 0.1(31.8) A(D) - - - - 13 Dougherty Road / S. Mariposa Drives ---------------------------------------------------- With tragic signals as mitigation3 3.1(120+) ---------------- - A(F) ------- - 0.3(38.4) ------------ - A(E) --- - 7.1(120+) -------- 0.6 A(F) ------ B 1.0(38.8) -------------- 0.45 A(E) -------- A 14 Dougherty Road /Monterey Drive ~ 0. I (30.0) A(D) 0.2(16.8) A(C) 0. I (I 9.2) A(C) 0. I (I 3.8) A(B) rvotes: ws = ~evei or service V / C =Volume-to-capacity ratio for overall signalized intersection X (X) =Intersection level of service (Level of service for the minor approach) X.X (X.X) =Average delay in seconds per vehicle overall one-way stop-controlled (unsignalized) intersection (Delay in seconds per vehicle to minor approach) Bold values indicate unacceptable LOS conditions Reconfigured driveway under project conditions; intersection limited to right-in/right-out with the project. Zlntersection does not exist with project 3Performance measure is V / C Page 4 I Report - Tragic Study for the Arroyo Vista Housing Development January 7, 2009 ~"~ J r ~5 ...! i., N .. O (". S U! ~~ it ~5 Alameda County CMP Land Use Analysis Program The recently updated Countywide Transportation Demand Model (CMA Model) was used to forecast traffic volumes for the Alameda County Congestion Management Agency (CMA) Analysis. Unlike the Dublin Traffic Model (DTM), which is a refinement of the Contra Costa Transportation Authority (CCTA) model (see the Dublin Traffic Model section of this Traffic Report for a detailed description of the model), the CMA model has a more regional focus, larger traffic analysis zones, less elaborate street network, and fewer centroid connectors within the Tri-Valley area. The CMA model volumes were used to analyze the Short Term Cumulative (2015) Conditions and Long Term Cumulative. (2030) Conditions, as indicated below. ! MTS Arterial Impacts Table IX summarizes the results of the analysis of Project impacts on various segments of Dublin Boulevard, Tassajara Road, San Ramon Road, and Dougherty Road in the study area. The analysis consists of measuring LOS on these roadway segments during the p.m. peak hour under Short Term Cumulative (2015) Conditions and Long Term Cumulative (2030) Conditions with and without the Project. The LOS results are based on the volume-to-capacity ratio for roadway segments. As shown in Table IX, all study roadway segments are expected to operate at acceptable levels of service (LOS E or better) in the p.m. peak hour under 2015 and 2030 conditions with and without the Project, except the following roadway segments: Dublin Boulevard • Between Dougherty Road and Hacienda Drive -eastbound direction • Between Dougherty Road and Village Parkway -both eastbound and westbound directions ""'" (LOS F) under 2030 conditions !' San Ramon Road • Between I-580 and Amador Valley Boulevard -northbound direction. As shown in the table, there are virtually no increases in v/c with the addition of Project volumes, '"~` which is minimal (i.e. less than one percent) compared with the projected volumes without the ~„~ project. Therefore, because the project contribution is not more than two percent on these ': segments, the Project will have no significant impact on the MTS arterial system in the vicinity of the Project under Short Term Cumulative (2015) and Long Term Cumulative (2030) Conditions. :• Page 42 Report - Tra)~ic Study for the Arroyo Vista Housing Development January 7, 2009 hh ~F\I`t ~~ c f?S~iO'"ic1G~~n consultants Table IX: Year 2015 and Year 2030 PM Peak Hour MTS Arterial Levels of Service Year 2015 No Year 2015 plus Year 2030 No Year 2030 plus o v Project Project ~ Project Project Location ~ o # o f o c e P.M. P.M. Lanes c P.M. P.M. ~ U Peak V/C LOS Peak V/C LOS U Peak V/C LOS Peak VlC LOS Volume Volume Volume Volume Dublin Boulevard Between Hacienda Drive and Tassajara Road Eastbound 3 3,000 2,269 0.76 C 2,271 0.76 C 3 3,000 2,429 0.81 D 2,431 0.81 D Westbound 3 3,000 216 0.07 A 221 0.07 A 3 3,000 382 0.13 A 387 0.13 A Between Dougherty Road and Hacienda Drive Eastbound 3 3,000 1,862 0.62 B 1,864 0.62 B 3 3,000 3,059 1.02 F 3,061 1.02 F ---------- Westbound - 3 ------ 3,000 ----------------- 1,360 0.45 A ------------------------ 1,360 0.45 A ------ 3 ------- 3,000 ---------------- 2,869 0.96 E ----------------- 2,869 0.96 E Between Dougherty Road and Village Parkway Eastbound 3 3,000 2,303 0.77 C 2,320 0.77 C 3 3,000 3,045 1.02 F 3,062 1.02 F Westbound 3 3,000 2,234 0.74 C 2,238 0.75 C 3 3,000 3,039 I.OI F 3,043 1.01 F Tassajara Road Between 1-580 and Dublin Boulevard Northbound -- 4 4,000 975 0.24 A 977 0.24 A 4 4,000 2,007 0.50 A 2,009 0.50 A ------------- Southbound ----- 4 --------- 4,000 ------------------------- 961 0.24 A ----------------------- 964 0.24 A ----- 4 ------- 4,000 ------------------------ 1,652 0.41 A ------------------------ 1,655 0.41 A Between Dublin Boulevard and Gleason Drive Northbound 3 3,000 1,022 0.34 A 1,022 0.34 A 3 3,000 1,742 0.58 A 1,742 0.58 A ---------------- Southbound -- 3 ------ 3,000 ----------------------- 701 0.23 A ------------------------ 701 0.23 A ------- 3 --------- 3,000 ----------------------- 1,058 0.35 A ---------------- 1,058 0.35 A North o f Gleason Drive Northbound --------------- 3 3,000 932 0.31 A 932 0.31 A 3 3,000 1,669 0.56 A 1,669 0.56 A - Southbound ----- 3 -------- 3,000 ----------------------------- 471 0.16 A ----------------------- 472 0.16 A -------- 3 ---- 3,000 -------------------- 729 0.24 A ----------------------- 730 0.24 A San Ramon Road Between 1-580 and Amador Valley Boulevard Northbound ------------------ 3 --- 3,000 3,154 1.05 F 3,154 1.05 F 3 3,000 4,409 1.47 F 4,409 1.47 F Southbound -- 3 ------ 3,000 ----------------- 1,763 0.59 A ----------------- 1,763 0.59 A ------- 3 --------- 3,000 ------------------ 2,404 0.80 D ------------------- 2,404 0.80 D Dougherty Road Between 1-580 and Dublin Boulevard Northbound -------------- 4 --- 4.000 2,965 0.74 C 2,986 0.75 C 4 4,000 2,965 0.74 C 2,986 0.75 C Southbound - 4 ------ 4,000 ---------------------- 2,003 0.50 A ---------------------- 2.017 0.50 A ----- 4 ------- 4,000 ----------------------- 2,120 0.53 A ----------------------- Z, 134 0.53 A wine: oo~a values ino~cate unacceptaoie t.va conamons Page 43 Report - Tragic Study for the Arroyo Vista Housing Development January 7, 2009 L16~ o~ toy 1iN' ransaarca4iar ~ansul;.a.n.s FreewaylState Highway Impacts As required by the 2007 CMP, Project impacts on I-580, I-680, and SR-84 were analyzed based on freeway capacity standards described in the 1985 Highway Capacity Manual. Tables X and XI summarize the results of the analysis of Project impacts on various segments of I-580, I-680 and SR-84 in the vicinity of the Project. The analysis consists of measuring the levels of service on these freeway and State highway segments during the p.m. peak hour under Short Term Cumulative (2015) Conditions and Long Term Cumulative (2030) Conditions with and without the Project. The LOS analysis is based on the volume-to-capacity ratio for basic freeway sections and multilane highways. As shown in Tables X and XI, specific segments of I-580 and I-680 are expected to operate at LOS F in the a.m. peak hour and p.m. peak hour under 2015 and 2030 conditions with and without '; the Project. SR-84 south of I-580 is expected to operate at acceptable LOS C or better in the a.m. and p.m. '! peak hours under 2015 conditions with and without the Project, as shown in Table X. Also, SR-84 south of I-580 is expected to operate at LOS E during the a.m. peak hour under 2030 conditions with and without the Project, as shown in Table XI With the Project trips added to No Project mainline freeway volumes and SR-84; projected LOS on ` I-580, I-680, and SR-84 would remain unchanged. Therefore, because the project contribution is not more than two percent on these segments, the Project will have no significant impact on freeway and state highway facilities in the vicinity of the Project under 2015 and 2030 conditions. ~~.. Page 44 Report - Tragic Study for the Arroyo Visto Housing Development January 7, 2009 uhr ~ poi "-~I:R` i rans,^cr-.aticr ~cnsui~nt; Table X: Short Term Cumulative (20151 Conditions Freeway Analysis a Yeor 2015 (No Project) Year 2015 plus Project Number o f Lones o A.M. P.M. A.M. P.M. o Peak VIC LOS Peak VIC LOS Peak VIC LOS Peak VIC LOS U Volume Volume Volume Volume -580, East of I-680 Eastbound 4 8,000 5,089 0.64 C 8,230 1.03 F 5,089 0.64 C 8,230 1.03 F ----- Westbound ---- 5 ---- 10.000 ----- 11,169 --- 1.12 --- F ----- 5,879 --- 0.59 -- C ----- 11,185 --- 1.12 -- F ----- 5,886 --- 0.59 -- C -580, Dougherty Road to Hacienda Drive Eastbound 6 + aux. 13,000 6,365 0.49 B 10,854 0.83 D 6,373 0.49 B 10,856 0.84 D ----- Westbound ---- 4 + aux. ---- 9,000 ----- 9,457 --- 1.05 --- F ----- 5,974 --- 0.66 -- C ----- 9,457 --- 1.05 -- F ----- 5,975 -- 0.66 --- C 1-580, Hacienda Drive to Tassajara Road Eastbound 5 10,000 4,253 0.43 B 10,988 1.10 F 4,261 0.43 B 10,989 1.10 - F -- ----- Westbound ---- 4 + aux. ---- 9,000 ----- 8,391 --- 0.93 --- E ----- 4,293 --- 0.48 -- B ----- 8,391 --- 0.93 -- E ----- 4,295 - 0.48 - B -580, Tassajara Road to Fallon Road Eastbound 4 + aux. 9,000 4,469 0.50 B 10,025 I. I I F 4,476 0.50 B 10,026 I.I I F ----- Westbound ---- 4+ aux. ---- 9,000 ----- 10,082 --- I .I 2 --- F ----- 4,594 --- 0.5 I -- B ----- 10,082 --- 1.12 -- F ----- 4,597 -- 0.5 I --- B -580, Fallon Road to Airway Boulevard Eastbound 4 + aux. 9,000 4,181 0.46 B 10,135 I.13 F 4,186 0.47 B 10, 136 1.13 F ----- Westbound ---- 4 + aux. ---- 9,000 ----- 11,891 --- 1.32 --- F ----- 4,320 --- 0.48 -- B ----- 11,891 --- 1.32 -- F ----- 4,323 -- 0.48 --- B -680, Alcosta Boulevard to I-580 Northbound 4 8,000 5,853 0.73 C 7,359 0.92 D 5,853 0.73 C 7,360 0.92 D Southbound 4 8,000 7,213 0.90 D 5,473 0.68 C 7,213 0.90 D 5,480 0.69 C -680, South of 1-580 Northbound 3 6,000 4,041 0.67 C 8,272 1.38 F 4,041 0.67 C 8,272 1.38 F ----- Southbound ---- 3 + aux. ---- 7,000 ----- 6,583 --- 0.94 --- E ----- 4,23 I --- 0.60 -- C ----- 6,585 --- 0.94 -- E ----- 4,232 -- 0.60 --- C SR 84, South of I-580 Northbound 2 4,000 2,524 0.63 C 1,762 0.44 B 2,524 0.63 C 1,762 0.44 B ----- Southbound ---- 2 ---- 4,000 ----- 2,260 --- 0.57 --- C ----- 2,345 --- 0.59 -- C ----- 2,260 --- 0.57 -- C ----- 2,345 -- 0.59 --- C Source: iya~ rtignway c-.apacity r'ianuai, I able S-I, ~eveis of service for nasic rreeway aections Maximum Service Flow rate for freeway segmenu=2000 vehicles/hr/lane, aux. =Auxiliary Lane If number of lanes on freeway segment= N+aux., capacity of segment= (N~`2000+1000) vehicles/hr For SR-84, Table 7-I, LOS Criteria for Multilane Highways (1985 HCM) was used assuming a capacity of 2,000 vehicles/hr/lane Note: Bold values indicate unacceptable LOS conditions Page 45 Report - Tragic Study for the Arroyo Vista Housing Development Jonuory 7, 2009 ~~ L °~ tl:~~{ a?sup, ~1LiOrt ~ortsujt~n*w T~tila xi• ~ nna Tnrm Cumulative (20301 Conditions Freeway Analysis g~ Year 2030 (No Project) Year 2030 plus Project Number o f Lanes o A.M. P.M. A.M. P.M. o Peak VIC LOS Peak Y/C LOS Peok VIC LOS Peak VIC LOS U Volume Volume Volume Volume -580, East of I-680 Eastbound 4 8,000 6,464 0.81 D 9,960 1.25 F 6,464 0.81 D 9.960 1.25 F Westbound 5 10,000 15,708 1.57 F 6,674 0.67 C 15,724 1.57 F 6,681 0.67 C 1-580, Dougherty Road to Hacienda Drive Eastbound 6 + aux. 13,000 8,016 0.62 C 12,590 0.97 E 8,024 - 0.62 -- C --- 12,592 ---- 0.97 --- E --- ----- Westbound ---- 4 + aux. ---- 9,000 ----- 13,864 --- 1.54 --- F ----- 7,066 --- 0.79 -- D ---- 13,864 1.54 F 7,067 0.79 D 1-580, Hacienda Drive to Tassajara Road Eastbound 5 10,000 6,520 0.65 C 12,027 1.20 F 6,528 0.65 -- C --- 12.028 ---- 1.20 --- F --- ----- Westbound ---- 4 + aux. ---- 9,000 ----- 12,731 --- 1.41 --- F ----- 6,351 -- 0.71 --- C ---- 12,731 - 1.41 F 6,353 0.71 C -580, Tassajara Road to Fallon Road Eastbound 4 + aux. 9,000 6,344 0.70 C 12,479 1.39 F 6,35 I -- 0.71 --- C --- 12,480 ---- 1.39 --- F --- ----- Westbound ---- 4 + aux. ---- 9,000 ----- 14,490 --- 1.61 --- F ---- 6,708 --- 0.75 --- C -- 14,490 1.61 F 6,71 I 0.75 C -580, Fallon Road to Airway Boulevard Eastbound 4 + aux. 9,000 6,632 0.74 C 12,972 1.44 F 6.637 0.74 --- C --- 12,973 ---- 1.44 --- F --- ----- Westbound ---- 4 + aux. ---- 9,000 ---- 15,720 --- 1.75 ---- F ---- 6,429 --- 0.71 --- C ---- 15,720 1.75 F 6,432 0.71 C -680, Alcosta Boulevard to I-580 Northbound 4 8.000 6,646 0.83 D 9,028 1.13 F 6,646 ---- 0.83 --- D --- 9,029 ---- 1.13 --- F --- ----- Southbound ---- 4 ---- 8,000 ---- 9,591 --- 1.20 ---- F ---- 5,982 --- 0.75 --- C 9,591 1.20 F 5,989 0.75 C 1-680, South of I-580 Northbound 3 6,000 3,791 0.63 C 10,095 1.68 F 3,791 ---- 0.63 --- C --- 10.095 ---- 1.68 --- F --- ----- Southbound ---- 3 + aux. ---- 7,000 ---- 8,683 --- 1.24 ---- F ---- 4,5 I I --- 0.64 --- C 8,685 1.24 F 4,512 0.64 C SR 84, South of I-580 Northbound 2 4,000 3,753 0.94 E 3,198 0.80 D 3,753 ---- 0.94 --- E --- 3, 198 ---- 0.80 --- D -- ----- Southbound ---- 2 ---- 4,000 ---- 3,549 --- 0.89 ---- E ---- 2,965 --- 0.74 --- D 3,549 0.89 E 2.965 0.74 D Source: l ytl~ rlignway ~,apauty rianuai, i auie ~- i, LCVCI~ vi oc~ v~t,c w. ~.a„~ ~ , ~~..a~ ~~~~~~~~~ Maximum Service Flow rate for freeway segments=2000 vehicles/hr/lane, aux. =Auxiliary Lane If number of lanes on freeway segment= N+aux., capacity of segment= (N*2000+1000) vehicles/hr For SR-84, Table 7-I, LOS Criteria for Multilane Highways (1985 HCM) was used assuming a capacity of 2,000 vehicles/hr/lane Note: Bold values indicate unacceptable LOS conditions Page 46 Report - Tragic Study for the Arroyo Vista Housing Development January 7, 2009 u~3 ~~ ~o~ _, ar:~E~c~ ~a~iar~ ~`onsuican ~~. Transit System Impacts BART (Bay Area Rapid Transit) The potential impacts of the proposed project on BART were evaluated by estimating increased ridership from the project. Future ridership projections developed for the Eastern Dublin EIR were based on the assumption that the existing East Dublin/Pleasanton station would be the only station located in the Tri-Valley area. However, it is expected that the West Dublin/Pleasanton BART station, currently under construction, would also be available in the Tri-Valley area by the time the proposed project is constructed. Riders generated by the residential `uses were calculated based on the methodology used in the Draft Environmental Impact Report (DEIR) for the Dublin Transit Center (July 2001). For the Transit Center, it is assumed that 32.1 percent of households would use BART since the residential portion of that project is located near the Transit Center area (Draft EIR for Dublin Transit Center, SCH No. 2000 1 1 20395 [July 2001], available at the City of Dublin). However, since the proposed project would not be in the immediate vicinity of a BART station, it is assumed that approximately two percent of the project households would commute by BART. This assumption is consistent with current BART ridership estimates within the Tri-Valley area containing the cities of Dublin, Pleasanton, Livermore, and part of San Ramon. Approximately seven new riders from the proposed project are expected to use BART, calculated as follows: Residential: 378 minus 50 senior units= 328 dwelling units x Irider/unit x 2% x 2 trips per day =approximately 14 trips/day (7 riders inbound to BART during the a.m. peak hour/ 7 riders outbound from BART during the p.m. peak hour) Currently, BART runs four 8-car trains to/from the Dublin/Pleasanton Station per hour during peak commute hours. The average number of annual weekday entries/exits at the Dublin/Pleasanton BART station is approximately 6,500. The West Dublin BART station currently under construction is projected to have approximately 6,000 daily entries/exits on its opening day in 2009 (BART.gov). ' Each BART train has a capacity of 560 seats, which translates into 2,240 seats during the peak hour. At this station, approximately I ,063 riders enter the station and 325 riders exit the station (total of 1,388 riders) during the a.m. peak hour. BART assumes a maximum load capacity of 1.35 persons per seat during the peak commute periods to account for sitting and standing passengers. During the p.m. peak hour, BART ridership at the station is lower, with a total of 1,266 riders (entering and exiting). Adding seven more entering riders during the a.m. peak hour would result in 1,070 riders traveling in the peak commute direction (westbound). With the added ridership from the proposed project, the resulting load capacity would be 0.48 persons per seat (1,070 riders/2,240 seats), which is below BART's maximum load capacity. During the p.m. peak hour, the load capacity would be even lower with the additional eight riders generated by the proposed project. Therefore, no significant impacts are anticipated for the BART system. This analysis is conservative in that it assumes that all of the potential riders would use BART during the peak hour of the morning and evening commutes. Page 4 7 Report - Tragic Study for the Arroyo Vista Housing Development January 7, 2009 Tli`! i ~ anspor~~tion LAVTA (Livermore Amodor Valley Transit Authority) -Wheels TJKM estimated the number of daily riders expected to originate from the proposed project and' use Wheels service. Assuming that two percent of project residents use Wheels transit, project ridership is calculated as follows: 328 dwelling units x 2% x 2 trips/day =approximately 13 daily riders. This ridership figure is conservative in that it assumes no discount for riders from the existing Arroyo Vista housing. Several Wheels bus routes currently provide service to East Dublin, including lines 3, 12, 12X, I OA, I A, I B, and 20X, which can be used by residents to connect to BART and ACE services to the South Bay. It is expected that LAVTA would continue to provide services after the site is redeveloped. It is also expected that LAVTA would provide sufficient capacity to accommodate riders as needed. ACE (Altamont Commuter Express) Train Providing commuter rail service from Stockton to San Jose, ACE train serves the Tri-Valley with one stop in Livermore and another at Pleasanton. ACE currently operates four round trips per day. Based on available data, ACE annual ridership is approximately 600,000. Ridership peaked in 2001 at approximately 930,000 (2006 MTC Statistical Summary of Bay Area Transit Operations). There are no significant impacts anticipated for the ACE system since the project is expected to marginally contribute riders to ACE train loading and ample capacity exists on the ACE system. On site Bus Circulation Options The proposed site plan was reviewed to determine bus circulation impacts resulting from reconfiguring the driveways connecting to Dougherty Road. Currently, Wheels bus Lines 3 and 202(school days only) provide direct service to the existing Arroyo Vista housing site from Dougherty Road with a counterclockwise loop via North Mariposa Drive that exits from South Mariposa Drive to Dougherty Road. The bus stop is located near the existing basketball court on the west side of South Mariposa Drive across from the tot lot. North Mariposa Drive will be removed with the redevelopment of the Arroyo Vista project site. The removal of this roadway together with the proposed eastbound left-turn restriction at the Dougherty Road / Ventura Drive intersection will impact bus circulation, especially for northbound operations. Additionally, the proposed layout of the site plan will require northbound buses to make various maneuvers to exit the project site. Various options for alternate circulation have been examined. For the southbound direction, the bus can be rerouted to enter the site further north via Ventura Drive and continue via Public Street B to serve the existing bus stop. This routing also allows the addition of another bus stop just south of Ventura Drive on Public Street B to serve residents in the north end of the development. Alternatively, for the southbound direction the route can stay on Dougherty Road with a bus pullout or stop on Dougherty Road. The northbound routing is more problematic and TJKM has developed and assessed four northbound bus circulation options to address the impact. The benefits and drawbacks of each option are discussed as follows. The bus circulation options are shown in Figure 14. Page 48 Report -Traffic Study for the Arroyo Vista Housing Development January 7, 2009 City of Dublin -Traffic Study for Arroyo Vista Housing Development Bus Circulat'on Options Site Plan (No thern Portion) ~~~~~ ~~ \\ ~ z° UU LEGEND ••••••••• Southbound Route Northbound Route Options _~= = i B (same as IB within the site) -•- 2 ,,.......... 3 ~4 4 Possible Bus Stop Location 4 Existing Bus Stop a ~~ Figure 14 .~ 1 1 1 1 1 ~~ y ~ ~ ' 'I .. .. o , ~ ~ ~-~.---,._,J ~h ...... ' ; i 1; ~ ~ ~ ° rr m , " ~ 1 r < --. 1' 1 00 '~ ~1 a~ ;.. _ •.._.v .. . _ ;' . ~~' ~"' ~ ~ • \ "z ~~~.~.' ••... S. MARIPOSA DR. ` ~ 1 . 1 g ~ ,I r $ ~ I ~ ~ ~• ~ ~ ~ I ~ r ~- 1 ~~ 1• • ~~ ~ z ' I Y ~ ~~ ~ 1 . r ~ .. • 'I ~ 1 :~ U ~~ .7~ i < _ .I ~-^~ ~a Q~ 14 N_ Not to Scale 157-001 - 4/14/06 - DM ~~~ ~~~ Sod ~,, `r, ! ~ ans r ,~4a~ion .~^RSUtt~I1LS Option I A: Operate via a northbound left turn from Dougherty Road at South Mariposa Drive, right turn at Public Loop, with a new northbound bus stop at the senior housing building; continue via Public Street B, with an optional additional stop just south of Ventura Drive, then right turn onto Ventura Drive and another right turn to Dougherty Road, into a new southbound left turn pocket to be created, and make a U-turn onto northbound Dougherty Road. Anew traffic signal is required with protected northbound left phasing and a protected southbound U-turn phasing. Analysis: Option I A allows northbound bus service to continue serving the site, with better service via the additional Ventura Drive bus stop. The required distance for merging from Ventura Drive across three lanes of traffic was evaluated and determined to be approximately 295 feet, based on the formula (L = 6o where L =design length, w =width of the road, and s =the speed of the vehicle). The distance from Ventura Drive to South Mariposa Drive is approximately 750 feet, which is adequate for a bus travelling at an average speed of 20 miles per hour (mph) to merge into the southbound left turn lane. However, it requires the bus to make a U-turn which is an uncommon practice for in-service buses and would be very uncomfortable for passengers in full-length (40-foot) bus coaches, particularly when they are standing. Also the existing pavement width of 24 feet for northbound Dougherty Road is inadequate for a standard 40-foot bus coach to make a U-turn. This option is therefore not recommended. Option I B: Operate a northbound left turn from Dougherty Road at South Mariposa Drive, right turn at Public Loop, with a new northbound bus stop across from the senior housing building; continue via Public Street B, with an optional stop just south of Ventura Drive, right turn onto Ventura Drive, and a left turn to Dougherty Road. This option maintains the intersection as a full access intersection, as opposed to Option 4, which is eastbound right-in/right-out and northbound left-in access. Analysis: Option I B allows northbound bus service to continue serving the site, with better service via the additional Ventura Drive bus stop, as well as the most direct way back to northbound Dougherty Road without backtracking. However, without a traffic signal, eastbound motorists on Ventura Drive will experience intolerable delay exceeding 50 seconds under the Long Term cumulative traffic conditions. Installing a traffic signal would solve the problem. However, this intersection is approximately 520 feet south of the Amador Valley Boulevard intersection, and does not meet the City of Dublin General Plan's 750 feet minimum spacing criteria for signalized intersections. Therefore, this option would be in non-compliance with the General Plan, and is not recommended. Option 2: Operate via a northbound left turn from Dougherty Road at South Mariposa Drive, right turn at Public Loop, and serve the stop at the senior housing building. Create a clockwise circular one-way bus only lane through the site of the proposed tot lot to connect with South Mariposa Drive to allow a left turn via South Mariposa Drive to continue northbound on Dougherty Road. Anew traffic signal is required with protected northbound left-turn phasing to enter the site. Page 50 Report - Tragic Study for the Arroyo Vista Housing Development Jonuory 7, 2009 ~{~6~ o.~ ~PIf _iGr ~.~ ra^apc, ;.aci;~r~ ~ortsui;.~r~t~~ Analysis: This option removes the tot lot which needs to be relocated elsewhere on the property due to safety concerns. It also requires removal of historic redwood trees which may trigger historic preservation issues. These redwood trees provide a pleasing and protective environment for the tot lot, as well as providing nice aesthetic entry to the community. This option is therefore not recommended. Option 3: Operate northbound bus service on Dougherty Road without entering the project site. This would require installing a new bus stop on Dougherty Road north of South Mariposa Drive and paving an area for passenger waiting. A bus turnout needs to be installed in the interim (near term) condition. With the planned future widening of Dougherty Road, the bus turnout would need to be relocated further to the east of the roadway to accommodate three northbound through lanes. Analysis: Although operating the bus service on Dougherty Road without serving the project site offers the fastest travel time for onboard passengers, removing northbound bus service into the site increases the distance passengers need to walk to get to the project. This is particularly undesirable since passengers would need to cross Dougherty Road which is currently a four lane arterial, and will become asix-lane arterial in the buildout condition. Passengers are likely to include many seniors and children in the community. Since this community has an affordable housing component, some residents are likely to have no cars or one car per household. Residents are likely to go grocery shopping by bus which would require walking across six lanes of a wide arterial such as Dougherty Road with groceries with this option. Line 3, which serves the site, operates with 30-minute headways. When bus headways are this low, passengers are prone to run after the bus which creates a safety issue. Option 4 (Consultant recommendation): Operate a northbound left turn from Dougherty Road at Ventura Drive, left turn at Public Street B, (with an optional additional stop just south of Ventura Drive), serve the same bus stop as southbound service at the senior housing building on the west side of Public Loop, and exit the project site via South Mariposa Drive, and make a left turn through a new signalized intersection at South Mariposa Drive/Dougherty Road onto northbound Dougherty Road. This option restricts access at Ventura Drive/Dougherty Road to eastbound right-in/right-out and northbound left-in access. Analysis: Option 4 allows northbound bus service to continue serving the site, with better service via the addition of a Ventura Drive bus stop. It also serves the existing bus stop without the need to install a separate northbound stop, as well as providing an easily maneuverable route by the bus driver. Analysis has been conducted at the intersection of Ventura Drive and Dougherty Road without and with a traffic signal. Results of the analysis show that a partial signal with protected northbound left turn on Dougherty Road to Ventura Drive will operate well. However, the City may accept an unsignalized left-turn ingress at Ventura. Egress would remain as right turn only. Option 4 is recommended. Impact TR-7 The proposed project would remove North Mariposa Road access to Dougherty Road and prohibit left turns from Ventura Drive onto northbound Dougherty Road. Each of these changes would disrupt existing transit service. This impact is significant. Page 51 Report - Tragic Study for the Arroyo Vista Housing Development January 7, 2009 _,,~ ;-ansa~~'a:i~n ...::nsui:an_s ~a Mitigation Measure TR-7 Provision for alternate bus circulation and transit amenities necessary to accommodate demand is needed to mitigate this impact. Several circulation alternatives were examined. For southbound bus service, two feasible options have been identified. For northbound bus service, two feasible options have been identified. A final determination of bus routing will be made through coordination between the City of Dublin, LAVTA and the project applicant. The project applicant shall provide the necessary bus stops and/or bus pullouts and associated amenities required to implement the final bus routes to mitigate the impact to ales-than-significant level. Bicycle and Pedestrian Circulation Impacts The site plan of the proposed project was reviewed for consistency with the City's Bikeways Master Plan, to determine any impacts resulting from changes to existing and proposed bikeways. It was determined that the proposed project is consistent with the City's Bikeway Master Plan and will preserve the existing alignment of the Alamo Creek Trail, which will form the western boundary of the project site. Additionally, the existing Class I bike path located on the east side of Dougherty Road will remain unchanged with the project since the site is located west of Dougherty Road. The site plan includes sidewalks for safe pedestrian circulation within the development. Therefore the project will have no significant impact on bicycle and pedestrian circulation. Report - Tragic Study for the Arroyo Vista Housing Development r Page 52 January 7, 2009 ~, --~ 6`' ~ ~-' 0 ~ ~i E' N ': ~-ans::o ,~c~r~ ~~o~sui~an~s Project Site Circulation, Parking, and Access Review TJKM conducted a review of project site circulation, parking, and access. Observations and recommendations are outlined below. Parking Review The project sponsor proposes to provide 396 residential garage parking spaces, 272 uncovered surface parking spaces, and 168 covered surface parking spaces. This total of 836 spaces includes 25 spaces for the day care and community center. The residential component of the development t has a parking supply ratio of (836-25)/378 = 2.15. According to the City of Dublin Parking Code, two parking stalls are needed for each residential unit to meet the peak parking demand that typically occurs between the hours of midnight to 5:00 a.m. Therefore, the proposed 378 residential units would require approximately 756 stalls by code. The proposed project will provide 8 I I residential spaces, which exceeds Code requirements by 55 spaces. Additionally, the senior housing component of the development is expected to require less than two parking spaces per residential unit. Based on ITE parking generation rates, 50 senior housing units are expected to require between 17 and 25 parking spaces during peak demand periods that typically occur on weekends. A total of 38 covered stalls are designated for senior housing. Also, a 3,000 square-foot day care facility for 48 children is expected to create demand for approximately 10 parking spaces during operating hours (7:00 a.m. to 6:00 p.m.). The community center is for project use only, therefore many patrons are likely to walk or bike to the center instead of driving. The parking spaces provided. for the center are provided as courtesy for deliveries, leasing, etc. These spaces can be used for additional guest parking. Since the senior housing building is close to the day care and community center building, guests of senior residents will have opportunities to utilize the 25 parking spaces after hours to meet any parking short falls. Based on the above discussions, it is reasonable to conclude that the proposed 836 parking spaces will be adequate for the Arroyo Vista Housing Development. Access Review Si,gnalization at Dougherty Road/S. Mariposa Drive Intersection According to the City's design policy guidelines, signalized intersections located on arterials should be spaced at a minimum of 750 feet. The proposed full-access driveway at Dougherty Road / S. Mariposa Drive (primary access) should be signalized to mitigate project impacts and will be spaced more than 750 feet from Dougherty Road/Amador Valley to the north and Dougherty Road/Scarlett Drive to the south. Therefore, the location of Dougherty Road/S. Mariposa Drive is expected to meet City design policy guidelines. Although Dougherty Road/S. Mariposa Drive does not meet traffic signal warrants on the basis of peak hour traffic volumes (i.e. slightly less than 100 vehicles per hour on the side street), it is recommended to signalize the intersection for the following reasons: signalization is expected to alleviate northbound left-turn and eastbound queuing, provide quick bus exits from the development, and also provide a crosswalk for safe pedestrian crossing and bike connectivity between the Class I bike trail located on the east side of Dougherty Road and the Iron Horse Trail. Therefore, the installation of traffic signals at the Dougherty Road/S. Mariposa Drive Intersection is justified by considering_the safety and circulation of all four travel modes (i.e. automobile, bus, bicycle, and pedestrians). Providing protected left turn signal phasing for northbound left-turn traffic is expected to improve both automobile and bus access to and from the project site. As Page 53 Report - Tragic Study for the Arroyo Vista Housing Development January 7, 2009 ~r~ ~~~ ~~~ t ~ f~ h ~C'2nSp0'.":r~L3p1'I ~onsuitan~s noted elsewhere, the lack of a traffic signal at this location is considered a significant project impact. `° This impact is mitigated by the installation of traffic signals. Access Control at Dougherty Road/Ventura Drive and Dougherty Road/Mariposa Drive Intersections The City design guidelines do not include similar criteria for unsignalized intersections located on arterials. Currently, there are four unsignalized intersections that provide access from Dougherty Road to the existing Arroyo Vista site. Of these four, the Ventura Drive and Monterey Drive ,: intersections are located less than 520 feet from the nearby Amador Valley Boulevard/Dougherty Road and Scarlett Drive / Dougherty Road intersections, respectively. Based on traffic safety, traffic queuing and expected eastbound left-turn delays at the driveways, it is recommended to restrict Dougherty Road /Monterey Drive as a right-in/right-out driveway with signalization of the primary access driveway at S. Mariposa Drive. As discussed under Bus Circulation Option 4, installing a ,,,~ "partial" traffic signal at Dougherty Road / Ventura Drive with an eastbound left-turn restriction is expected to conveniently serve the northern section of the development, but is not required to '~` mitigate the northbound bus circulation impact. This signal would not affect northbound through traffic. It would signalize the southbound through movement, northbound left-turn movement and the eastbound right-turn movement. It would be a simple two-phase signal (one phase for southbound traffic and one for northbound left-turn traffic overlapped with eastbound right turn traffic) that could easily be coordinated with the signal at Amador Valley Boulevard with the ~"" installation of signal interconnect cable between the two intersections. Project Site Circulation The current site plan shows a width of 22 feet along the Public Loop roadway. This should. be increased to at least 24 feet to meet the minimum requirements of the City. The City requires a 40-foot minimum roadway width for atwo-lane residential street that includes parking on both sides. The planned 36-foot width for Public Streets A and B is less than the City's standard. Based on template analysis, the width of Public Street A between the planned bulb-outs located at the intersection of Public Loop and Public Street A has inadequate turning radii for safe turning movements at the intersection. As a result, the current design may cause congestion at the intersection. Finally, the proposed angled parking spaces on Public Street A for day care patrons appear acceptable. TJKM recommends redesigning the southwestern bulb-out at the intersection of Public Loop and Public Street A. Pedestrian and Bicycle Circulation The site plan includes five-foot sidewalks along both sides of all internal streets for safe pedestrian circulation within the development. Sidewalks are also provided along Dougherty Road. The sidewalks will provide easy pedestrian access throughout the community and from the Dougherty Road and the bike/pedestrian path on the east side of Dougherty Road. The 36-foot width of the internal streets is inadequate for the inclusion of dedicated bicycle lanes and thus cyclists are expected to share the streets with autos. Page 54 + Report - Trof~c Study for the Arroyo Vista Housing Development fanuary 7, 2009 s~ t (1'~j1' "d3'ISCJL3 ~aLlOC? ~OnSUiic7R~~ Supplementary Analysis A supplementary analysis was conducted to assess the impact of relocating the Camp Parks access at Dublin Boulevard to the main project access (Dougherty Road/S. Mariposa Drive) rather than to Amador Valley Boulevard. The Camp Parks driveway would form the fourth leg of the Dougherty Road/S. Mariposa Drive intersection. As previously noted, the proposed main project access will likely be signalized and spaced more than 750 feet from Dougherty Road/Amador Valley Boulevard to the north and Dougherty Road/Scarlett Drive to the south. Relocating the Camp Parks main access driveway may be necessary if a portion of the RFTA site is redeveloped for mixed-uses. For the purpose of this study, it was assumed that the future Central Parkway extension would connect with Dougherty Road north of where Scarlett Drive intersects Dougherty Road. Figures 15 and 16 shows the turning movement volumes and lane configurations and traffic controls for five study intersections under the alternate RFTA access scenario. Intersection Level of Service Analysis -Long Term Cumulative plus Project Conditions (Alternate Camp Parks Access) Table XII summarizes peak hour levels of service at the intersections of Dougherty Road/Scarlett Drive, Dougherty Road/Amador Valley Boulevard, Dougherty Road/Dublin Boulevard and all three project driveway intersections with Dougherty Road. The analysis was conducted only for the Long Term Cumulative plus Project Conditions. Appendix K contains the level of service worksheets. With the Camp Parks access located at Dougherty Road/Amador Valley Boulevard, the majority of westbound Camp Parks motorists heading towards downtown Dublin (approximately 370 vehicles per hour) are expected to use Amador Valley Boulevard to avoid traffic congestion to the south at Dougherty Road/Dublin Boulevard during the p.m. peak period. Alternatively, with the Camp Parks access located at Dougherty Road/S. Mariposa Drive, fewer westbound Camp Parks motorists (approximately 10 percent compared with approximately 64 percent with the access located at Amador Valley Boulevard) are expected to use Amador Valley Boulevard. Under this alternate access scenario, higher northbound left-turn delays are expected at Dougherty Road/Amador Valley Boulevard during both a.m. and p.m. peak periods. As a result, the majority of Camp Parks motorists are expected to head south on Dougherty Road to reach downtown Dublin via Dublin Boulevard, thereby contributing to traffic congestion at Dougherty Road/Dublin Boulevard, particularly during the p.m. peak period. As shown in Table XII, the intersection of Dougherty Road/Amador Valley Boulevard improves in LOS from E to D when the fourth leg for Camp Parks access is excluded. There are no significant differences in the levels of service for Dougherty Road/Scarlett Drive and the three project driveway intersections under the two Camp Parks access location scenarios. Therefore, it can be concluded that the proposed Project will not preclude the relocation of the Camp Parks driveway to align with S. Mariposa Drive. Page 55 Report - Tragic Study for the Arroyo Vista Housing Development January 7, 2009 i!C"' _. a^S~os ~r ;i~r ~~~~suitants ~~ Z off. ~r Based on the above discussions, it is recommended to base the decision to relocate the Camp Parks access to either Dougherty Road/Amador Valley Boulevard or Dougherty Road/S. Mariposa Drive on factors such as right-of-way acquisition costs, safety, security, and traffic circulation, rather than based solely on intersection performance measures. Table X11: Peak Hour Intersection Levels of Service -Long Term Cumulative plus Dv~,:nr,t ~'.,nrlitir,nc lAltsarnatp C'amn Parkc ~LL'eSS~ Access relocated to Dougherty Rd. I Access relocated to Dougherty Rd. 1 Amador Valley Blvd. S. Mariposa Dr. ID Signalized A.M. Peak P.M. Peak A.M. Peak P.M. Peak Intersection Hour Hour Hour Hour V/ C LOS V/ C LOS V/ C LOS V/ C LOS I Dougherty Road / 0.91 E 0.96 E 0.87 D 0.69 B Amador Valley Boulevard* 2 Dougherty Road / 0.58 A 0.75 C 0.59 A 0.75 C Scarlett Drive 4 Dougherty Road / 0 81 D 0.95 E 0.81 D 1.01 F Dublin Boulevard A.M. Peak P.M. Peak A.M. Peak P.M. Peak ID Unsignalized Hour Hour Hour Hour Intersection Delay LOS Delay LOS Delay LOS Delay LOS I I Dougherty Road / 0 I (27 8) A(D) 0. I (I 6.8) A(C) 0. I (I 8.5) A(C) 0. I (I 2.5) A(B) Ventura Drive ~ Dougherty Road / _ _ _ 2 N. Mariposa Driven _ _ - _ _ Dougherty Road / 7 I (I 20+) A(F) 1.0(38.8) A(E) 8. I (I 20+) A(F) 120+ (I 20+) F(F) S. Mariposa Drives 13 With tra)~ic signols as _ 0.60 B 0,45 A 0.61 B 0.63 B mitigation3 14 Dougherty Road / 0. I (I 9.2) A(C) 0. I (I 3.8) A(B) 0. I (I 9.2) A(C) 0. I (I 3.8) A(B) Monterey Drive Notes: LUS =Level of ~erv~ce V / C =Volume-to-capacity ratio for overall signalized intersection X (X) =Intersection level of service (Level of service for the minor approach) X.X (X.X) =Average delay in seconds per vehicle overall one-way stop-controlled (unsignalized) intersection (Delay in seconds per vehicle to minor approach) Bold values indicate unacceptable LOS conditions Reconfigured driveway Zlntersection does not exist with project *Four-leg intersection under "Dougherty Road !Amador Valley Boulevard Access" scenario 3Performance measure is V / C Report - Tragic Study for the Arroyo Vista Housing Development Page 56 January 7, 2009 City of Dublin -Traffic Study for Arroyo Vista Housing Development Figure Long Term Cumulative (2025) Plus Project Conditions - 15 Alternate Camp Parks Access Turning MovementVoiumes Intersection I Dougherty Rd.lAmadorVly. Blvd. Intersection 2 Dougherty Rd.lScarlett Dr. Intersettion 4 Dougherty Rd./Dublin Blvd. Intersettion I I Dougherty Rd./Ventura Dr Intersettion 13 Dougherty Rd./S. Mariposa Dr. ~ ~ -o ~ o~ th N ~ N~ ~.n ,- . Q1 ~' ~ ~~M (D M (~ NI ch OQ r+~a 8Q O/2~ _~ (h ~ ~ (O ~~ ~~`~~° R 102(72) .-Nm f1,650(1,670) OV Lf) ~ C~ Mry t~ N r ~~~ R 30(67) InNN ~-~(0) 1 T~ ~~ J ~ 324 (780 ~ 25 518 380 (350)_ ~, f d/ ~ t~ ~ ~ "O~ ~ ~ ~ ~ 175 (284)_f~ R ~ ~ 24 15 ( )~ ~ 33 (20) ~ ~~ ~" ~ 612 (416)-~ ~ ~ `9AJ 3 1,228 (1,450}-i ~ 0 (0)~ ~ ~n,v ~)*~ 4J 394(580) ~ ~~~ Y ~ - 66(38) oho V V M in h o [p O ~ O ~~ ON'1001 ` ~ ~.o ~~N ~ N ~ (00 N N N r ~ ~- Intersection 14 LEGEND Dougherty Rd./Monterey Dr. • Study Intersection ~ Project Site Driveway XX AM Peak Hour Volume ~ N N (XX)PM Peak Hour Volume •'~ ---- Future Roadway 24 (15)-~ ~ a N O R T H Not to Scale Project Site 1 11 ~,~0 0 ~p~~~y 8TH ST BRODER BLVD. ~ P~POO ~ 13.x\ `. Relocated GLEASON DR. y Camp Parks s " e' , 14 Access z d a ~ a I 2 ~- S , ° °z O w ~ ~ ~ ` ~ , - Q x ~1 O ~ C `` a ____________________? ' - - CENTRAL PKVJ1' q G ~ ~' ~ . ~ Q ~ i ~ '~ zl ~ ~ O 'O ~ SIERRA LN. ~ S~ERRgL`~~ DUBLIN BLVD. ~ 4 m~, W ~R<Fr~, Q o HACIENO ~ ,~ CROSS CT. ~~ tiG JOHNSON DR. :1 OIA~ENS DR. 157-00 I T I I S- 4/ 15108 - DM ~~'~ b~ ~~ City of Dublin -Traffic Study for ArroyoYista Housing Development Figure Long Term Cumulative (2025) Plus Project Conditions - ~ 6 Alternate Camp Paris Access Lane Configurations and Traffic Controls Intersection I Intersection 2 Intersection 4 Intersection I I Intersection 13 Dougherty Rd./AmadorVly. Blvd. Dougherty Rd./Scarlett Dr. Dougherty Rd./Dublin Blvd. Dougherty Rd.!Ventura Dr Dougherty Rd./S. Mariposa Dr. ^ w E-- ~11. ~ h,~ ~1111~~., ~ X111 ~111~. ~-- - ~` '~'it~ w OVERLAP r Intersection 14 LEGEND Dougherty Rd./Monterey Dr. ~ Study Intersection ~ Project Site Driveway 'Traffic Signal X11 ~- Stop Sign ~ -_ ~ ~ I I ----Under No Project Conditions N O RT H Not to Scale Project Site, 1 ~11 a ~~O ~c'~~ 8TH ST. Q-,P~~ P~POO ~ - 13 '\~ Relocated y`s-. Camp Parks '°:' Access ~, 14 ~ 2 ._ ^ O U ~ sc9 _ a w ~~F ~ ~ ~ A ~ ~ ~~~ `~ ^ SIERRA LN. S1ERl3gL`~' DUBLIN BLVD. 4 sc, w 9R~ ~ o PTp m n CT. Irt JOHNSON DR. OWENS DR. BRODER BLVD. GLEASON DR. 0 a D z w ~~ = CENTRAL PKWY. K 57-DO I T I I S- 4/ 15/08 - DM ~-~ s c ,,i~ ;~ansr~o~ ,,avian Consuitan~s Study Participants TJKM Personnel Chris Kinzel, P.E. David Mahama, P.E. Andrew Kluter, P.E. Jia Hao Wu, Ph.D. Frank Yeh Kai Han, E.LT. Geri Foley Margie Pfaff Principal-In-Charge Project Manager/Project Engineer Senior Transportation Engineer Senior Modeler Transportation Planner Assistant Transportation Engineer Graphic Designer Word Processing Persons Contacted Jaimee Bourgeois, P.E. City of Dublin Erica Fraser, AICP City of Dublin References Contra Costa Transportation Authority (CCTA) Technical Procedures Manual, 2006. ~~~ Alameda County Congestion Management Agency (ACCMA) Technical and Policy Guidelines, 2007. Tri-Valley Transportation Plan and Action Plan Update, Draft Report, February 26, 2008. ` Highway Capacity Manual 2000, Transportation Research Board, Washington D.G., 2000. Trip Generation, Seventh Edition, Institute of Transportation Engineers, Washington DC, 2003. Draft EIR for Dublin Transit Center, SCH No. 20001120395 July 2001 J, available at the City of Dublin. Mysteries o f the PHF, Rans ford S. McCourt, Western ITE, November -December, 2002 Edition Page 59 Report - Tragic Study for the Arroyo Vista Housing Development January 7, 2009 ~~ 4~~ ~ ~~~ APPENDIX A LEVEL OF SERVICE The description and procedures for calculating capacity and level of service (LOS) are found in Transportation Research Board, Highway Capacity Manual 2000. Highway Capocrty Manual 2000 represents the latest research on capacity and quality of service for transportation facilities. Quality of service requires quantitative measures to characterize operational conditions within a traffic stream. LOS is a quality measure describing operational conditions within a traffic stream, generally in terms of such service measures as speed and travel time, freedom to maneuver, traffic interruptions, and comfort and convenience. Six levels of service are defined for each type of facility that has analysis procedures available. Letters designate each level, from A to F, with LOS A representing the best operating conditions and LOS F the worst. Each LOS represents a range of operating conditions and the driver's perception of these conditions. Safety is not included in the measures that establish service levels. A general description of service levels for various types of facilities is shown in Table A-I Table A-1: Level of Service Description Uninterrupted Flow Interrupted Flow Facility Type Freeways Multi-lane Highways Two-lane Highways Urban Streets Signalized Intersections Unsignalized Intersections Two-way Stop Control All-way Stop Control LOS A Free-flow Very low delay. B Stable flow. Presence of other users noticeable. Low delay. C Stable flow. Comfort and convenience starts to decline. Acceptable delay. D High-density stable flow. Tolerable delay. E Unstable flow. Limit of acceptable delay. F Forced or breakdown flow. Unacceptable delay Source: Highway Capacity Manual 2000 Urban Streets The term "urban streets" refers to urban arterials and collectors, including those in downtown areas. Arterial streets are roads that primarily serve longer through trips. However, providing access to abutting commercial and residential land uses is also an important function of arterials. Collector streets provide both land access and traffic circulation within residential, commercial and industrial areas. Their access function is more important than that of arterials, and unlike arterials their operation is not always dominated by traffic signals. Downtown streets are signalized facilities that often resemble arterials. They not only move through traffic but also provide access to local businesses for passenger cars, transit buses, and trucks. ~`I ~ ~~ god Pedestrian conflicts and lane obstructions created by stopping or standing buses, trucks and parking vehicles that cause turbulence in the traffic flow are typical of downtown streets. The speed of vehicles on urban streets is influenced by three main factors, street environment, interaction among vehicles and traffic control. As a result, these factors also affect quality of service. The street environment includes the geometric characteristics of the facility, the character of roadside activity and adjacent land uses. Thus, the environment reflects the number and width of lanes, type of median, driveway density, spacing between signalized intersections, existence of parking, level of pedestrian activity and speed limit. The interaction among vehicles is determined by traffic density, the proportion of trucks and buses, and turning movements. This interaction affects the operation of vehicles at intersections and, to a lesser extent, between signals. Traffic control (including signals and signs) forces a portion of all vehicles to slow or stop. The delays and speed changes caused by traffic control devices reduce vehicle speeds, however, such controls are needed to establish right-of-way. The average travel speed for through vehicles along an urban street is the determinant of the operating LOS. The travel speed along a segment, section or entire length of an urban street is dependent on the running speed between signalized intersections and the amount of control delay incurred at signalized intersections. LOS A describes primarily free-flow operations. Vehicles are completely unimpeded in their ability to maneuver within the traffic stream. Control delay at signalized intersections is minimal. LOS B describes reasonably unimpeded operations. The ability to maneuver within the traffic stream is only slightly restricted, and control delays at signalized intersections are not significant. LOS C describes stable operations, however, ability to maneuver and change lanes in midblock location may be more restricted than at LOS B. Longer queues, adverse signal coordination, or both may contribute to lower travel speeds. LOS D borders on a range in which in which small increases in flow may cause substantial increases in delay and decreases in travel speed. LOS D may be due to adverse signal progression, inappropriate signal timing, high volumes, or a combination of these factors. LOS E is characterized by significant delays and lower travel speeds. Such operations are caused by a combination of adverse progression, high signal density, high volumes, extensive delays at critical intersections, and inappropriate signal timing. LOS F is characterized by urban street flow at extremely low speeds. Intersection congestion is likely at critical signalized locations, with high delays, high volumes, and extensive queuing. The methodology to determine LOS stratifies urban streets into four classifications. The classifications are complex, and are related to functional and design categories. Table A-II describes the functional and design categories, while Table A-III relates these to the urban street classification. ~_ Once classified, the urban street is divided into segments for analysis. An urban street segment is a one-way section of street encompassing a series of blocks or links terminating at a signalized intersection. Adjacent segments of urban streets may be combined to form larger street sections, provided that the segments have similar demand flows and characteristics. Levels of service are related to the average travel speed of vehicles along the urban street segment or section. Travel times for existing conditions are obtained by field measurements. The maximum-car technique is used. The vehicle is driven at the posted speed limit unless impeded by actual traffic conditions. In the maximum-car technique, a safe level of vehicular operation is maintained by observing proper following distances and by changing speeds at reasonable rates of acceleration and deceleration. The maximum- car technique provides the best base for measuring traffic performance. An observer records the travel time and locations and duration of delay. The beginning and ending points are the centers of intersections. Delays include times waiting in queues at signalized intersections. The travel speed is determined by dividing the length of the segment by the travel time. Once the travel speed on the arterial is determined, the LOS is found by comparing the speed to the criteria in Table A-IV. LOS criteria vary for the different classifications of urban street, reflecting differences in driver expectations. Table A-I1: Functional and Design Categories for Urban Streets C i i Functional Category r ter on Principal Arterial Minor Arterial Mobility function Very important Important Access function Very minor Substantial Points connected Freeways, important activity centers, major Principal arterials traffic generators Relatively long trips between major points Trips of moderate length within relatively Predominant trips served and through trips entering, leaving, and small geographical areas ' passing through city it i C Design Category er r on High-Speed Suburban Intermediate Urban Driveway access density Very low density Low density Moderate density High density Multilane divided; Multilane divided: undivided or two- Multilane divided or Undivided one Arterial type undivided or two- lane with undivided; one way, way; two way, two lane with shoulders shoulders two lane or more lanes Parking No No Some Usually Separate left-turn lanes Yes Yes Usually Some Signals per mile 0.5 to 2 Ito 5 4 to 10 6 to 12 Speed limits 45 to 55 mph 40 to 45 mph 30 to 40 mph 25 to 35 mph Pedestrian activity Very little Little Some Usually Roadside development Low density Low to medium Medium to High density density moderate density Source: Highway Capacity Manual 2000 ~gJ ~ ~ ~ti~ Table A-III: Urban Street Class based on Function and Design Categories D i C t Functional Category gn es a egory Principal Arterial Minor Arterial High-Speed I Not applicable Suburban II II Intermediate II III or IV Urban III or IV IV source: Highway (,opacity manual LUUU Table A-IV: Urban Street Levels of Service by Class Urban Street Cass 1 11 111 IV Range of Free Flow Speeds (mph) 45 to 55 35 to 45 30 to 35 25 to 35 Typical Free Flow Speed (mph) 50 40 33 30 LOS Average Travel Speed (rr-pb) A >42 >35 >30 >25 B >34 >28 >24 >19 C >27 >22 >18 >13 D >21 >17 >14 >9 E >16 >13 >10 >7 F <_16 <_13 510 <_7 source: r-iignway c.apacrty manual ~uuv Interrupted Flow One of the more important elements limiting, and often interrupting the flow of traffic on a highway is the intersection. Flow on an interrupted facility is usually dominated by points of fixed operation such as traffic signals, stop and yield signs. These all operate quite differently and have differing impacts on overall flow. Unsignalized Intersections The current procedures on unsignalized intersections were first introduced in the 1997 update to the Highway Capacity Manual and represent a revision of the methodology published in the 1994 update to the 1985 Highway Capacity Manual. The revised procedures use control delay as a measure of effectiveness to determine LOS. Delay is a measure of driver discomfort, frustration, fuel consumption, and increased travel time. The delay experienced by a motorist is made up of a number of factors that relate to control, traffic and incidents. Total delay is the difference between the travel time actually experienced and the reference travel time that would result during base conditions, i. e., in the absence of traffic control, geometric delay, any incidents, and any other vehicles. Control delay is the increased time of travel for a vehicle approaching and passing through an unsignalized intersection, compared with a free-flow vehicle if it were not required to slow or stop at the intersection. :. Two-Way Stop Controlled Intersections Two-way stop controlled intersections in which stop signs are used to assign the right-of-way, are the most prevalent type of intersection in the United States. At two-way stop-controlled intersections the stop-controlled approaches are referred as the minor street approaches and can be either public streets or private driveways. The approaches that are not controlled by stop signs are referred to as the major street approaches. The capacity of movements subject to delay are determined using the "critical gap" method of capacity analysis. Expected average control delay based on movement volume and movement capacity is calculated. A LOS designation is given to the expected control delay for each minor movement. LOS is not defined for the intersection as a whole. Control delay is the increased time of travel for a vehicle approaching and passing through astop-controlled intersection, compared with afree-flow vehicle if it were not required to slow or stop at the intersection. A description of levels of service for two-way stop-controlled intersections is found in Table A-VI. Table A-VI: Description of Level of Service for Two-Way Stop Controlled Intersections LOS Description A Very low control delay less than 10 seconds per vehicle for each movement subject to delay. B Low control delay greater than 10 and up to 15 seconds per vehicle for each movement subject to delay. C Acceptable control delay greater than 15 and up to 25 seconds per vehicle for each movement subject to delay. D Tolerable control delay greater than 25 and up to 35 seconds per vehicle for each movement subject to delay. E Limit of tolerable control delay greater than 35 and up to 50 seconds per vehicle for each movement subject to delay. F Unacceptable control delay in excess of 50 seconds per vehicle for each movement subject to delay. Source: Highwoy Capacity Manual 2000 J:ITJKM Appendices\LOS-HCM 2000.doc ~gZ o~ gel DESCRIPTION OF INTERSECTION CAPACITY ANALYSIS CCTA SIGNALIZED METHODOLOGY Background The CCTA intersection capacity analysis methodology is described in detail in the Technical Procedures Manual of the CCTA, January, 1991. It is identical to the Circular 212 Planning methodology except that the lane capacity has been increased from 1500 vph to between 1650 to 1800 vph based on saturation flow measurements taken at four intersections in Contra Costa County. (See following Table 9 from the Technical Procedures Manual.) On average, saturation flow rates for left-turn lanes were over ten percent lower than for through lanes. However, insufficient data was collected to provide statistical accuracy for the averages. Thus, saturation flow rates for through lanes are equal to those for turn lanes. This methodology determines the critical movement for each phase of traffic. It then sums the critical volume-to-capacity ratio by phase to determine the intersection volume-to-capacity ratio. Circular 212, on the other hand, sums the critical movement volumes themselves and compares them to the total capacity of the intersection to determine, in effect, the volume-to-capacity ratio of the intersection as a whole. Levels of Service The volume-to-capacity ratio is related to level of service (LOS). The following level of service for Signalized Intersections depicts the relationship between the volume-to-capacity ratio and level of service. An intersection operating at capacity would operate at LOS E. Level of Service F is not possible for existing conditions, but can be forecasted for future conditions when volume projections exceed existing capacities. Input Data The intersection capacity work sheets use a code to identify different lane configurations. This nomenclature is described on the following Description of Lane Configurations. Right turn on red adjustments are accounted for as well as unequal distribution of turn volumes in double turn lanes. For more information, see Circular 212 and the CCTA Technical Procedures Manual. i.F.VRi, nF SF,RViCF, RANGES VOLUME TO MAXIMUM 5UM OF CRITICAL VOLUMES LOS CAPACITY RATIO 2-Phase 3-Phase 4+-Phase A < 0.60 1,080 1,030 990 B 0.61 - 0.70 1,260 1,200 1,160 C 0.71 - 0.80 1,440 1,380 1,320 D 0.81 - 0.90 1,620 1,550 1,490 E 0.91 - 1.00 1,800 1,720 1,650 F -------------Not Applicable------------ Source: Contra Costa Growth Management Program, Technical Procedures, Table 9. cctavc.app DESCRIPTION OF LANE CONFIGURATION FORMAT The number of lanes and the use of the lanes is denoted with a special nomenclature described below: Lane Nomenclature X,Y Where X Denotes the total number of lanes available for a particular movement. Y Denotes how the lanes are used. When Y is ... ...The followin a lies: t.o R A lane used exclusively for a particular movement (i.e., exclusive left-turn lane). Q a- t.or ~ tAL (` 1 .~. ~' R ~± '' ~ A lane which is shared, that is, either of two different movements can be made from a ~ ,.RL articular lane i e a lane which is shared by through and right-turn traffic). P C. ., 2 .- ~ a r Denotes two or more through lanes in which two lanes are shared, one with left-turn , L traffic, the other with right-turn traffic. Denotes an ex resswa throu h movement. 4 .,~. ~ ' T Denotes aright-turn movement from a wide outside lane where right-turn vehicles can ~- ' _ bypass through traffic sharing the lane to make aright-turn on red. 4 I ~ ,.o G. Denotes aright-turn movement from an exclusive right-turn lane with aright-turn arrow 5 ,'-~-- 2.oT and prohibition on the conflicting U-turn movement. ( i tAL ` I: ~ 8 "~ '-°'-''`R 3' T Denotes aright-turn movement from a shared lane with aright-turn arrow and prohibition ~-~ on the conflicting U-turn movement. f ~ ,.o ~ Denotes a turnin movement which has a se arate lane to turn into, as shown below: .:. ~i,a t-r ~ Turn lane which is shared with a through lane or left-turn lane and under signal control, ~ ~r; and which has its own lane to turn into. There must be at lease two through lanes. ~~i~l ~~ ~i.,• ._-,.BH Exclusive turn lane which is under signal control, and which has its own lane to turn into. $ --•aoT :- ....... t Q L ` . ~~; ~~~ -S-,vA Exclusive turn lane not under signal control and which has an exclusive lane to turn into, 9 G~`- 2~T often referred to as a "free" turn. Since the volumes in this lane do not conflict with other ~`--~ of intersection movements, the V/C ratio of the free right-turn movement is not included in ~~;4 the sum of critical V/C ratios. J:ITechnirallAppendiceslCCTA Signalized Methodology.doc cctavc.app 1.~~ ~ ~~~ ~'~~ 1 __. _ ~~wffi~~.1<~~~ Tel: (916) 910-2620/Fax: (916) 676-4883 htto://www.fao-consu Iti ng.com PROJECT: Arroyo Vista Housing Development COUNT DATE: May 22, 2007 INTERSECTION: Dougherty Rd and Amador Valley Blvd. START TIME: 7:00 AM TYPE: Traffic Signal LOCATION: Dublin, CA COUNT DAY: Tuesday END TIME: 9:00 AM COUNT ID: MCB/1 Northbound Southbound Eastbound Westbound Begin End Total Dougherty Rd. Dougherty Rd. Amador Valley Blvd. Amador Valley Blvd. Left Thru R' ht Left Thru R' ht Left Thru R' ht Left Thru Ri ht 7:00 7:15 625 65 108 0 0 313 42 16 0 80 0 0 0 7:15 7:30 664 54 115 0 0 355 49 21 0 71 0 0 0 7:30 7:45 700 64 109 0 0 389 40 20 0 77 0 0 0 7:45 8:00 753 111 116 0 0 334 56 20 0 116 0 0 0 8:00 8:15 688 89 115 0 0 349 57 15 0 63 0 0 0 8:15 8:30 745 93 117 0 0 364 64 39 0 68 0 0 0 8:30 8:45 626 76 100 0 0 302 32 33 0 83 0 0 0 8:45 9:00 568 42 119 0 0 267 35 31 0 74 0 0 0 Total 553 779 0 0 2406 34i0 165 0 537 0 0 0 HOURLY 7:00 8:00 2742 295 448 0 0 1391 186 78 0 344 0 0 0 7:15 8:15 2805 318 454 0 0 1427 201 77 0 327 0 0 0 7:30 8:30 2885 358 456 0 0 1437 216 94 0 324 0 0 0 7:45 8:45 2811 370 447 0 0 1350 209 107 0 329 0 0 0 8:00 9:00 2626 300 450 0 0 1283 189 118 0 287 0 0 0 PEAK HOUR 7:30 8:30 2885 358 456 0 0 1437 216 94 0 324 0 0 0 "/o ny movement 1Z.4%o lb.tl%o UA% UA"/o 4y.t5% By Approach 28.2% 57.3% 94 Left In 418 Thru ~~ Out 574 324 .Right c+s c~ ~ ~) ~ O ~ fD ~ M N ~~„ L ~ ~ L ~ ~ Southbound c 7 a PHF = 0.96 N A W Northbound r -i m ? ~ ~ W A (T V7 ao ~ ~ lO O i.5ro ssr u.ur 1'1.2"/0 o.uio u.uio o.oio 14.5% 0.0% J Right ~ In N g ~ Thru C 7 ~' OUt Left ~1 OD _ A I~ Data File: Dougherty_Amador Valley - TMC (AM) Printed: 8/17/2007 Page: 1 ~fl~$U1;T~~G Tel: (916) 910-2620/Fax: (916) 676-4883 htto://www.fao-consu Iting.com PROJECT: Arroyo Vista Housing Development COUNT DATE: May 22, 2007 INTERSECTION: Dougherty Rd. and Amador Valley Rd. START TIME: 4:OOPM TYPE: Traffic Signal LOCATION: Dublin, CA COUNT DAY: Tuesday END TIME: 6:00 PM COUNT ID: MCB/1 Northbound Southbound Eastbound Westbound Begin End Total Dougherty Road Doughtery Road Amador Valley Blvd Amador Valley Blvd. Left Thru Ri ht Left Thru R' ht Left Thru Ri ht Left Thru Ri ht 16:00 16:15 625 98 205 0 0 174 28 45 0 76 0 0 0 16:15 16:30 628 89 249 0 0 160 25 53 0 54 0 0 0 16:30 16:45 666 94 234 0 0 181 28 56 0 74 0 0 0 16:45 17:00 728 117 272 0 0 177 41 43 0 78 0 0 0 17:00 17:15 773 109 331 0 0 167 23 79 0 63 0 0 0 17:15 17:30 771 117 286 0 0 174 25 85 0 86 0 0 0 17:30 17:45 855 120 342 0 0 198 49 83 0 63 0 0 0 17:45 18:00 829 123 335 0 0 176 30 84 0 81 0 0 0 Total 867 2253 0 0 1406 248 526 0 575 0 0 0 HOURLY 16:00 17:00 2646 398 959 0 0 691 121 196 0 282 0 0 0 16:15 17:15 2794 409 1085 0 0 685 116 230 0 269 0 0 0 16:30 17:30 2938 437 1123 0 0 699 116 263 0 301 0 0 0 16:45 17:45 3126 463 1231 0 0 716 137 289 0 290 0 0 0 17:00 18:00 3228 469 1294 0 0 715 126 330 0 294 0 0 0 PEAK HOUR 17:00 18:00 -3228 469 1294 0 -0 715 126 330 0 .294 0 0 0 By Movement 14.5% 40.1% 0.0 % 0.0 % 22.1 % 3.9 % 10.2% 0.0 % 9.1 % 0.0 % 0.0 % D.0 By Approach 54.6% 26.1 % 19.3 % 0.0% v ~i ~ o~ r n ~ ~ ~ ,''J'nQ_. InF~ J r V Southbound 330 Left ~ ~ Right In ~ ~ In 624 ~ ~ 0 Thru ~ a PHF = 0.94 c ~~ Thru N C N ~ Out W c Out 596 294 Right ~ ~ Left Northbound r ~ ~ m ~ cc ~ c A N ~ ~ ~ A O I~ ~ h aD A Data File: Dougherty_Amador Valley - TMC (PM) Printed: 8/17/2007 Page: 2 ~ 7 a-~ PROJECT: Arroyo Vista Housing Development INTERSECTION: Dougherty Rd. and Ventura Dr. TYPE: Stop Sign --_ __ ~n~s~t~~~~ Tel: (916) 910-2620/Fax: (916) 676-4883 ~://www.fao-consulting com COUNT DATE: May 22, 2007 START TIME: 7:00 AM LOCATION: Dublin, CA COUNT DAY: Tuesday END TIME: 9:00 AM COUNT ID: MCB/2 Northbound Southbound Eastbound Westbound Begin End Total Dougherty Road Dougherty Road Ventura Drive Ventura Drive Left Thru R' ht Left Thru Ri ht Left Thru R' ht Left Thru Ri ht 7:00 7:15 516 0 154 0 0 360 0 2 0 0 0 0 0 7:15 7:30 635 0 212 0 0 421 0 2 0 0 0 0 0 7:30 7:45 641 0 236 0 0 403 0 1 0 1 0 0 0 7:45 8:00 713 0 260 0 0 450 1 1 0 0 0 0 0 8:00 8:15 620 0 220 0 0 396 1 3 0 0 0 0 0 8:15 8:30 559 0 191 0 0 366 0 2 0 0 0 0 0 8:30 8:45 559 0 143 0 0 413 1 2 0 1 0 0 0 8:45 9:00 518 1 135 0 0 377 1 3 0 0 0 0 0 Total 0 1415 0 0 .2809 3 14 0 2 0 0 b HOURLY 7:00 8:00 2505 0 863 0 0 1634 1 6 0 1 0 0 0 7:15 8:15 2609 0 928 0 0 1670 2 8 0 1 0 0 0 7:30 8:30 2533 0 906 0 0 1616 2 8 0 1 0 0 0 7:45 8:45 2451 0 813 0 0 1625 3 9 0 1 0 0 0 8:00 9:00 2256 1 688 0 0 1553 3 11 0 1 0 0 0 PEAK HOUR 7:15 8:15 2609 0 928 0 0 1670 2 8 0 1 0 0 0 ey MOVemenl U.0 % 35.6% D.0% 0.0% 64.0% 0.7 % 0.3 % D.D % 0.0 % 0.0 % 0.0% 0.0% By Approach 35.6 % 64.1 % 0.3% 0.0% M ~ c~ t` ~I [~ ~ O p~ o N r ~ ~ ~ ~ ~ J Southbound 8 Left ~' ~ Right In ~ ~ In 9 ~ H Thru ~ a PHF = 0.92 g" ~ Thru A ~ Out W c OUI 2 1 Right ~ ~ Left Northbound ~ :D N ~ tC ~ c ~ m N U1 _ lO ~ io o~ Data File: Dougherty_Ventura - TMC (AM) Printed: 8/17/2007 Page: 1 ~,g~ ~,-~ ~o~ PROJECT: Arroyo Vista Housing Development INTERSECTION: Dougherty Rd. and Ventura Dr TYPE: Stop Sign cbN4iU LT kH~.. Tel: (916) 910-2620/Fax: (916) 676-4883 htto:!lwww.fao-consu Iting.com COUNT DATE: May 22, 2007 START TIME: 4:OOPM LOCATION: Dublin, CA COUNT DAY: Tuesday END TIME: 6:00 PM COUNT ID: MCB/2 Northbound Southbound Eastbound Westbound Begin End Total Dougherty Road Doughtery Road Ventura Drive Ventura Drive Left Thru Ri ht Left Thru R' ht LeR Thru Ri ht Leff Thru Ri ht 16:00 16:15 508 1 274 0 0 233 0 0 0 0 0 0 0 16:15 16:30 499 0 296 0 0 200 1 1 0 1 0 0 0 16:30 16:45 574 0 330 0 0 241 1 2 0 0 0 0 0 16:45 17:00 571 2 336 0 0 229 2 1 0 0 0 0 0 17:00 17:15 658 0 441 0 0 214 1 1 0 0 0 0 0 17:15 17:30 734 1 456 0 0 275 1 0 0 0 0 0 0 17:30 17:45 666 0 421 0 0 244 0 1 0 0 0 0 0 17:45 18:00 680 0 430 0 0 248 2 0 0 1 0 0 0 Total 4 2985 0 0 1885 9 6 0 2 0 0 0' HOURLY 16:00 17:00 2153 3 1236 0 0 903 4 4 0 1 0 0 0 16:15 17:15 2303 2 1404 0 0 885 5 5 0 1 0 0 0 16:30 17:30 2537 3 1564 0 0 960 5 4 0 0 0 0 0 16:45 17:45 2629 3 1655 0 0 963 4 3 0 0 0 0 0 17:00 18:00 2739 1 1749 0 0 981 4 2 0 1 0 0 0 PEAK HOUR 17:00 18:00 2739 1 1749 0 0 981 4 2 0 1 0 0 0 rjy MOVemen[ U.U% 53.6% U.U% UA% 35.6% U.Z% U.1% U.U% UA% 0.U% 0.U% 0.U% By Approach 63.9 % 36.0% 0.1 % 0.0 cl ~ ~I n ~ r v ao rn ~ ~ ~ ~ J (^ JJnQ' r V Southbound 2 Left ~ ~ Right In 9 ~ In c 3 ~ ~ 0 Thru ~ a PHF = 0.93 g ~ Thru in c m ~ Out w °~ Out 5 1 Right ~ ~ Left Northbound -~ ~1 m S ~ ~ ~ A w I° ~ I~ O Data File: Dougherty_Ventura - TMC (PM) Printed: 8117/2007 Page: 2 corrs;u~lri~aG Tel: (916) 910-2620/Fax: (916) 676-4883 gip://www.fao-consultin .com PROJECT: Arroyo Vista Housing Development COUNT DATE: May 22, 2007 INTERSECTION: Dougherty Rd. and N. Mariposa Dr. START TIME: 7:00 AM TYPE: Stop Sign LOCATION: Dublin, CA COUNT DAY: Tuesday END TIME: 9:00 AM COUNT ID: MCB/3 Northbound Southbound Eastbound Westbound Begin End Total Dougherty Road Dougherty Road N. Mariposa N. Mariposa Left Thru R' ht Left Thru Ri ht Left Thru Ri ht Left Thru R' ht 7:00 7:15 490 1 121 0 0 365 1 0 0 1 0 0 0 7:15 7:30 498 0 121 0 0 374 1 0 0 2 0 0 0 7:30 7:45 620 1 201 0 0 416 0 1 0 1 0 0 0 7:45 8:00 613 0 175 0 0 433 2 1 0 2 0 0 0 8:00 8:15 604 1 190 0 0 413 0 1 0 0 0 0 0 8:15 8:30 588 1 190 0 0 394 3 0 0 0 0 0 0 8:30 8:45 505 1 122 0 0 381 0 0 0 0 0 0 0 8:45 9:00 530 1 160 0 0 366 1 1 0 1 0 0 0 Total 5 1120 0 0 2776 8 3 A 8 0 0 0 HOURLY 7:00 8:00 2221 2 618 0 0 1588 4 2 0 6 0 0 0 7:15 8:15 2336 2 687 0 0 1635 3 3 0 5 0 0 0 7:30 8:30 2426 3 755 0 0 1655 5 3 0 3 0 0 0 7:45 8:45 2310 3 676 0 0 1621 5 2 0 2 0 0 0 8:00 9:00 2228 4 661 0 0 1555 4 2 0 1 0 0 0 PEAK HOUR 7:30 8:30 2426 3 755 0 0 1655 5 3 0 3 0 0 0 r tSy Movement 0.1 % 31.1% 0.0% 0.0% 68.2% 0.2% 0.1% 0.0% 0.1 % 0.0% 0.0% 0.0% °/ By Approach 31.3% 68.5 % 0.3% 0.0 c~ ~ OI ~ n ~[) ~ ~ ~ ~ ~ ~ A_J.na_I. InI~ J r V Southbound 3 Left ~ ~ Right In .o ~ In 6 ~ Thru r~7 a PHF = 0.98 ; ~ Thru A w a Out 9 3 Right ~, ~ Left Northbound r ~ ~ ~ ~ ~ c V W UI v CST lO ~ ~7 Data File: Dougherty_N.Mariposa -TMC (AM) Printed: 8/17/2007 Page: 1 ~,o~o ~,~ X01 PROJECT: Arroyo Vista Housing Development INTERSECTION: Dougherty Rd. and N. Mariposa TYPE: Stop Sign --. - ^orxsuf_rc~c Tel: (916) 910-2620/Fax: (916) 676-4883 htto://www.fao-consu Iti ng.com COUNT DATE: May 22, 2007 START TIME: 4:OOPM LOCATION: Dublin, CA COUNT DAY: Tuesday END TIME: 6:00 PM COUNT ID: MCB/3 Northbound Southbound Eastbound Westbound Begin End Total Dougherty Road Doughtery Road N. Mariposa N. Mariposa Leff Thru Ri ht Left Thru R' ht Left Thru Ri ht Left Thru Ri ht 16:00 16:15 594 2 334 0 0 256 0 0 0 1 0 0 0 16:15 16:30 609 2 390 0 0 214 0 0 0 2 0 0 0 16:30 16:45 558 0 361 0 0 195 1 0 0 1 0 0 0 16:45 17:00 504 3 295 0 0 204 0 1 0 1 0 0 0 17:00 17:15 604 1 364 0 0 235 0 1 0 3 0 0 0 17:15 17:30 692 4 439 0 0 245 0 2 0 1 0 0 0 17:30 17:45 668 2 430 0 0 231 1 2 0 1 0 0 0 17:45 18:00 698 2 454 0 0 238 1 1 0 1 0 0 0 Total 17 3068 0 0 1818 3 8 0 12 0 0 0 HOURLY 16:00 17:00 2264 8 1380 0 0 869 1 1 0 5 0 0 0 16:15 17:15 2275 6 1410 0 0 848 1 2 0 8 0 0 0 16:30 17:30 2358 9 1459 0 0 879 1 4 0 6 0 0 0 16:45 17:45 2468 11 1528 0 0 915 1 6 0 6 0 0 0 17:00 18:00 2661 10 1688 0 0 949 2 6 0 6 0 0 0 PEAK HOUR 17:00 18:00 2661 10 1688 0 0 949 2 6 0 6 0 0 0 ioeynnovement u.ar as.ar u.ur u.uro so.iro u.ir u.zro u.ui u.zr u.ur u.ur u.uio By Approach 63.8% 35.7 % 0.5% 0.0% v =i ~ o~ N ~ ~ ~ ~ J Southbound 6 Left ~ ~ Right In y ~ In 13 ~ ~ 0 Thru ~ ~° PHF = 0.95 ; ~ Thru m c A ~ Out w °' Out 12 6 Right ~ ~ Left Northbound ~ ~7 m ? c'c ~ c w rn o ao 00 m cn I~ ~ is rn ~ Data File: Dougherty_N.Mariposa - TMC (PM) Printed: 8/17/2007 Page: 2 ~~ ~ o~ ~o~ 4 ~~~~UL,•~wG Tel: (916) 910-2620/Fax: (916) 676-4883 httD://www.fao-consu Iting.com PROJECT: Arroyo Vista Housing Development COUNT DATE: May 22, 2007 INTERSECTION: Dougherty Rd. and S. Mariposa Dr. START TIME: 7:00 AM TYPE: Stop Sign LOCATION: Dublin, CA COUNT DAY: Tuesday END TIME: 9:00 AM COUNT ID: MCB/4 Northbound Southbound Eastbound Westbound Begin End Total Dougherty Road Dougherty Road S. Mariposa S. Mariposa LeR Thru R' ht Left Thru Ri ht Left Thru Ri ht Left Thru Ri ht 7:00 7:15 549 0 125 0 0 422 0 1 0 0 0 0 0 7:15 7:30 546 1 137 0 0 407 0 0 0 1 0 0 0 7:30 7:45 601 2 184 0 0 408 0 4 0 2 0 0 0 7:45 8:00 709 6 192 0 0 496 4 6 0 4 0 0 0 8:00 8:15 569 3 162 ' 0 0 387 3 8 0 6 0 0 0 8:15 8:30 561 2 160 0 0 391 1 6 0 1 0 0 0 8:30 8:45 602 6 159 0 0 423 2 8 0 4 0 0 0 8:45 .9:00 569 3 160 0 0 401 1 0 0 4 0 0 0 Total 21 1119 0 0 2935 11 33 0 19 D 0 0 HOURLY 7:00 8:00 2405 10 639 0 0 1734 4 12 0 8 0 0 0 7:15 8:15 2426 13 675 0 0 1698 8 18 0 14 0 0 0 7:30 8:30 2441 14 698 0 0 1682 9 25 0 14 0 0 0 7:45 8:45 2442 18 672 0 0 1697 11 28 0 16 0 0 0 8:00 9:00 2301 15 640 0 0 1602 8 21 0 16 0 0 0 PEAK HOUR 7:45 8:45 2442 18 672 0 0 1697 11 28 0 16 0 0 0 %tly MOVeRIen[ 0./% 2L5% O.D"/o O.U"/o 69.5""/0 0.4% 1.1% O.D% 0.7% D.0% 0.0% 0.0% By Approach 28.3°/ 69.9% 1.8 % 0.0% 00 0 ci ~ OI p n r 3 ~ ~ J ~ JIn~L V Southbound 28 Left ~' ~ Right In -o ~ In 44 ~ Thru ~ a PHF = 0.86 g ~ Thru N C Out W °~ Out 29 - 16 Right ~ ~ Left Northbound ~ ~ ~ ~ c ~ rn ~ N j IO O) _ O i W Data File: Dougherty_S.Mariposa - TMC (AM) Pdnted: 8/17/2007 Page: 1 +-_ _ ~~~~~~.~t~~ Tel: (916) 910-2620/Fax: (916) 676-4883 htto://www.fao-consulti ng.com PROJECT: Arroyo Vista Housing Development COUNT DATE: May 22, 2007 INTERSECTION: Dougherty Rd. and S. Mariposa Dr. START TIME: 4:OOPM TYPE: Stop Sign LOCATION: Dublin, CA COUNT DAY: Tuesday END TIME: 6:00 PM COUNT ID: MCB/4 Northbound Southbound Eastbound Westbound Begin End Total Doughert Road Doughtery Road S. Mariposa S. Mariposa Left Thru Ri ht Left Thru R' ht Left Thru Ri ht Left Thru R' ht 16:00 16:15 543 3 268 0 0 266 2 2 0 2 0 0 0 16:15 16:30 540 5 294 0 0 236 1 1 0 3 0 0 0 16:30 16:45 650 4 406 0 0 228 5 1 0 5 0 0 0 16:45 17:00 574 4 344 0 0 221 1 3 0 1 0 0 0 17:00 17:15 604 3 393 0 0 199 2 4 0 2 0 0 0 17:15 17:30 644 4 407 0 0 227 2 3 0 0 0 0 0 17:30 17:45 669 0 419 0 0 243 1 3 0 2 0 0 0 17:45 18:00 698 4 459 0 0 227 1 2 0 4 0 0 0 Total 29 2989 0 0 .1847 16 20 0 20 0 0 0 HOURLY 16:00 17:00 2308 17 1311 0 0 950 10 8 0 12 0 0 0 16:15 17:15 2369 17 1437 0 0 884 10 10 0 12 0 0 0 16:30 17:30 2473 16 1550 0 0 875 11 12 0 9 0 0 0 16:45 17:45 2491 12 1563 0 0 890 6 14 0 5 0 0 0 17:00 18:00 2614 12 1678 0 0 897 6 13 0 9 0 0 0 PEAK HOUR 17:00 18:00 2614 12 1678 0 0 897 6 13 0 9 0 0 0 i rsy nnovemenc u.o i b4.Z %° U.U %o U.U %0 34.3 %o U.Z"/° U.5 %o U.U %o U.3 %o U.U %o U.U %° U.U"/o By Approach 64.6% 34.5% 0.8% 0.0% c p O ~ ~ o) W 00 ~ ~ ~ !Y F J Southbound 13 Left ~ ~ Right In ~ ~ In 21 `_ ~ 0 Thru ~ ~° PHF = 0.94 c G~ Thru m e m ~ Out w °~ Out 18 9 Right ~ ~ Left Northbound ~ ~ N ~ IG ~ ~ rn N ~1 OD o] O I° ~ Is ~ O Data File: Dougherty_S.Mariposa - TMC (PM) Printed: 8/17/2007 Page: 2 .ems ~/ .:. ~~".: PROJECT: Arroyo Vista Housing Development INTERSECTION: Dougherty Rd. and Monterey Dr TYPE: Stop Sign ,~~~-_. ~pN~,~~T~~~ Tel: (916) 910-2620/Fax: (916) 676-4883 httD://www.fao-consu Iting.com COUNT DATE: May 23, 2007 START TIME: 7:00 AM LOCATION: Dublin, CA COUNT DAY: Wednesday END TIME: 9:00 AM COUNT ID: MCB/5 Northbound Southbound Eastbound Westbound Begin End Total Dougherty Road Dougherty Road Monterey Drive Monterey Drive Left Thru R' ht Left Thru Ri ht Left Thru Ri ht Left Thru Ri ht 7:00 7:15 558 2 170 0 0 383 0 0 0 3 0 0 0 7:15 7:30 581 1 144 0 0 435 0 0 0 1 0 0 0 7:30 7:45 605 2 176 0 0 426 0 0 0 1 0 0 0 7:45 8:00 658 3 190 0 0 463 0 0 0 2 0 0 0 8:00 8:15 548 0 147 0 0 396 0 0 0 4 0 0 0 8:15 8:30 417 0 109 0 0 302 1 0 0 4 0 0 0 8:30 8:45 593 4 145 0 0 438 1 0 0 4 0 0 0 8:45 9:00 501 4 136 0 0 355 0 0 0 6 0 0 0 Total 13 1080 0 0 2844 2 0 0 20 0 0 0 HOURLY 7:00 8:00 2402 9 679 0 0 1707 0 0 0 8 0 0 0 7:15 8:15 2391 6 656 0 0 1721 0 0 0 9 0 0 0 7:30 8:30 2228 5 621 0 0 1588 1 0 0 12 0 0 0 7:45 8:45 2215 8 590 0 0 1600 2 0 0 15 0 0 0 8:00 9:00 2058 9 537 0 0 1491 2 0 0 19 0 0 0 PEAK HOUR 7:00 8:00 2402 9 679 0 0 1707 0 0 0 8 0 0 0 By Movement 0.4% 28.3 % 0.0 % 0.0 % 71.1% 0.0% 0.0% 0.0% 0.3% 0.0% 0.0% 0.0% By Approach 28.6% 71.1 % 0.3% 0.0% n ~ cl o DI r u) O r n ~ ~ ~ ~ J (~ J/n0! r V Southbound Left ~ ~ Right In ~ ~ In $ ~ w Thru ~ a PHF = 0.91 g ~~ Thru m e m ~ w a p~ 9 8 Right ~ ~ Left Northbound ~ ~ m ~' ~ ~ ~ rn m ~ rn ja X13 A Data File: Dougherty_Monterey - TMC (AM) Printed: 8/17/2007 Page: 1 ~•~ ( eT~ ~, ~ - PROJECT: Arroyo Vista Housing Development INTERSECTION: Dougherty Rd. and Monterey Dr. TYPE: Stop Sign ~^CJNSU LTLHf Tel: (916) 910-2620/Fax: (916) 676-4883 httg:liwww.fao-consulti ng.com COUNT DATE: May 23, 2007 START TIME: 4:OOPM LOCATION: Dublin, CA Northbound Southbound Eastbound Westbound -Begin End Total Dougherty Road Doughtery Road Monterey Drive Monterey Drive Left Thru Ri ht Left Thru R' ht Left Thru Ri ht Left Thru Ri ht 16:00 16:15 514 3 301 0 0 208 0 0 0 2 0 0 0 16:15 16:30 509 3 283 0 0 220 0 0 0 3 0 0 0 16:30 16:45 546 3 329 0 0 209 0 0 0 5 0 0 0 16:45 17:00 571 5 330 0 0 229 1 0 0 5 0 0 0 17:00 17:15 621 5 374 0 0 237 0 0 0 5 0 0 0 17:15 17:30 678 6 419 0 0 246 1 0 0 5 0 0 0 17:30 17:45 686 6 437 0 0 239 1 0 0 2 0 0 0 17:45 18:00 691 4 440 0 0 244 1 0 0 1 0 0 0 Total 38 2913 0 0 1832 4 0 0 30 -0 0 0 HOURLY 16:00 17:00 2141 15 1243 0 0 866 1 0 0 16 0 0 0 16:15 17:15 2248 17 1316 0 0 895 1 0 0 19 0 0 0 16:30 17:30 2417 20 1452 0 0 921 2 0 0 21 0 0 0 16:45 17:45 2556 24 1560 0 0 951 3 0 0 18 0 0 0 17:00 18:00 2676 23 1670 0 0 966 3 0 0 14 0 0 0 PEAK HOUR 17:00 18:00 2676 23 1670 0 0 966 3 0 0 14 0 0 0 r tsyMOVement u.u"/o bL.4%o u.u"/o u.u"/o ao.i"/o u.ir u.ur° By Approach 63.3 % 36.2% Left In 14 Thru ~ Out 26 14 Right 0 cl ~ pl ~ rn M ~ ? ~ ~ J (~ Jr~~ r Southbound c 0 a° PHF = 0.97 m W COUNT DAY: Wednesday END TIME: 6:00 PM COUNT ID: MCB/5 u.u"/o u.e-ro u.u"/o u.u-ro u.u"/o 0.5% 0.0 Right ~ In m 0 Q G~ Thru 0 e °~ Out Left r m x N W Northbound c rn v O ~ IO ~ w O co ~ Is W Data File: Dougherty_Monterey - TMC (PM) Printed: 8!'17/2007 Page: 2 rte" a'~y ek ~n O +~- ~ ~. PROJECT: Arroyo Vista Housing Development INTERSECTION: Dougherty Rd. and Scarlett Dr TYPE: Traffic Signal .._. - ~OMSt14TfM4 Tel: (916) 910-2620/Fax: (916) 676-4883 http://www.fao-consulting com COUNT DATE: May 23, 2007 START TIME: 7:00 AM LOCATION: Dublin, CA COUNT DAY: Wednesday END TIME: 9:00 AM COUNT ID: MCB/6 Northbound Southbound Eastbound Westbound Begin End Total Dougherty Rd. Dougherty Rd. Scarlett Dr. Scarlett Dr. Left Thru R" ht Left Thru Ri ht Left Thru R' ht Left Thru Ri ht 7:00 7:15 558 4 164 1 1 359 3 3 0 15 6 0 1 7:15 7:30 581 2 169 1 2 377 1 3 0 18 5 0 1 7:30 7:45 680 3 181 2 2 458 2 3 0 23 3 1 2 7:45 8:00 669 4 177 1 2 453 1 2 0 17 9 0 2 8:00 8:15 599 2 176 3 1 386 2 2 0 16 ~ 9 0 2 8:15 8:30 666 4 167 1 2 454 1 10 0 18 5 0 3 8:30 8:45 566 2 156 2 2 374 4 2 0 15 6 0 1 8:45 9:00 593 8 178 2 1 364 2 3 0 14 18 0 2 Total 23 1190 12 13 2861 15 .26 0 122 44 1 13 HOURLY 7:00 8:00 2488 14 691 5 8 1647 8 12 0 73 24 1 6 7:15 8:15 2529 12 703 8 8 1674 6 11 0 74 26 1 8 7:30 8:30 2614 14 701 8 8 1751 6 17 0 74 26 1 10 7:45 8:45 2500 13 676 8 8 1667 9 16 0 66 29 0 9 8:00 9:00 2424 16 677 9 6 1578 10 17 0 63 39 0 9 PEAK HOUR 7:30 8:30 2614 14 701 8 8 1751 6 17 0 74 26 1 10 A % ey Movement 0.5% 26.8% V.3% 0.3% 67.V% O.Z% By Approach 27.6% 67.5% u'> c~ ~ L D1 17 Left In 91 Thru ~~ QUt 21 74 Right Data File: Dougherty_Scarlett - TMC (AM) O ~ u~ 7 L JInH V Southbound c a PHF = 0.96 H A W V.7% 0.0"/a 2.6"/0 1.V"/o V.V% V.4% 3.5 % 1.4% d J Right 10 ~ In 36 c ~ Thru 1 0 C ~' (]~It 15 Left 26 r m a Northbound c 0 ~o O 00 N i~ N Printed:8/1 712 0 0 7 Page:1 cf~~r~ ~. 1:.01 PROJECT: Arroyo Vista Housing Development INTERSECTION: Dougherty Rd. and Scarlett Dr TYPE: Traffic Signal C{1M$U LTFN6 Tel: (916) 910-2620/Fax: (916) 676-4883 htto://www.fao-consu lti ng.com COUNT DATE: May 23, 2007 START TIME: 4:OOPM LOCATION: Dublin, CA COUNT DAY: Wednesday END TIME: 6:00 PM COUNT ID: MCB/6 Northbound Southbound Eastbound Westbound Begin End Total Dougherty Road Doughtery Road Scarlett Dr. Scarlett Dr. Left Thru Ri ht Left Thru R' ht Left Thru Ri ht Left Thru Ri ht 16:00 16:15 601 4 207 1 1 359 3 3 0 15 6 0 1 16:15 16:30 603 2 191 1 2 377 1 3 0 18 5 1 1 16:30 16:45 703 12 415 2 2 255 2 0 0 5 5 0 4 16:45 17:00 618 16 344 1 1 240 2 0 0 9 5 0 0 17:00 17:15 672 14 420 5 0 219 3 1 0 6 3 0 0 17:15 17:30 751 9 431 3 1 284 6 2 0 6 6 1 1 17:30 17:45 761 25 456 3 0 250 8 1 0 15 2 0 1 17:45 18:00 758 14 447 6 1 271 2 2 0 6 5 0 2 Total 95 2910 24 9 2254 28 13 0 81 40 2 11 HOURLY 16:00 17:00 2525 34 1156 5 6 1231 9 6 0 47 23 1 6 16:15 17:15 2596 44 1369 10 5 1091 9 4 0 39 19 1 5 16:30 17:30 2744 50 1609 12 4 998 14 3 0 27 20 1 5 16:45 17:45 2802 63 1651 13 2 992 19 4 0 36 17 1 2 17:00 18:00 2941 61 1754 18 2 1023 19 6 0 34 17 1 4 PEAK HOUR 17:00 18:00 2941 61 1754 18 2 1023 19 6 0 34 17 1 4 i t3y Movement Y.1 k 55.ti% asr u,1 r° sa.ar° u.ir By Approach 62.3% 35.5 ci L C7 6 Left In 41 Thru C~ OUS 81 34 Right =I ~ 0 M N O 7 L ~nF V Southbound e 0 a PHF = 0.97 N N W U.2"/o 0.U% 1.Z% U.ti% 0.V% 0.1% 1.4% 0.8% N N J Right 4 ~ In w 22 c ~ Thru 1 C 7 ~' DUt 20 Left 17 r m x Q> Northbound s c J CT A O IO T1 m s Do w Is w Data File: Dougherty_Scarlett - TMC (PM) Printed: 8/77/2007 Page: 2 ~f~l ? PROJECT: Arroyo Vista Housing Development INTERSECTION: Dougherty Rd. and Sierra Ln. TYPE: Traffic Signal ~- - L`ONSL G~fpG Tel: (916) 910-2620/Fax: (916) 676-4883 lam://www.fao-consu Iting.com COUNT DATE: May 23, 2007 START TIME: 7:00 AM LOCATION: Dublin, CA COUNT DAY: Wednesday END TIME: 9:00 AM COUNT ID: MCB/7 Northbound Southbound Eastbound Westbound Begin End Total Dougherty Rd. Dougherty Rd. Sierra Ln. Sierra Ln. Left Thru R' ht Left Thru Ri ht Left Thru Ri ht Left Thru Ri ht 7:00 7:15 510 21 149 0 0 311 15 4 0 6 1 2 0 7:15 7:30 654 24 164 8 2 430 8 5 2 8 3 1 0 7:30 7:45 650 38 155 6 2 408 19 6 1 6 6 1 0 7:45 8:Ob 710 33 166 5 3 452 24 6 0 15 5 0 0 8:00 8:15 636 44 146 4 3 390 17 13 1 15 2 0 1 8:15 8:30 676 35 151 3 1 433 25 5 0 14 4 4 0 8:30 8:45 533 27 128 3 1 340 16 2 1 10 4 1 0 8:45 '9:00 598 45 154 0 1 357 16 4 0 14 5 1 0 Total 222 1059 30 13 2763 123 43 5 74 27 10 1 HOURLY 7:00 8:00 2524 116 634 19 8 1601 65 23 3 35 16 4 0 7:15 8:15 2651 138 631 24 11 1680 68 31 4 44 17 2 1 7:30 8:30 2673 150 618 19 10 1683 85 31 2 50 18 5 1 7:45 8:45 2555 139 590 16 9 1615 81 27 2 54 16 5 1 8:00 9:00 2443 151 579 11 6 1519 74 25 2 53 16 6 1 PEAK HOUR 7:30 8:30 2673 150 618 19 10 1683 85 31 2 50 18 5 1 rocynnovemenc a.ar zs.iro U./% u.aio tis.uio s.zio By Approach 29.5% 66.5% cl L 31 Left In 84 2 Thru ~ Out 240 50 Right e a N A W r cn 0 ~I o o ~ M (O 7 L JIH V Southbound PHF = 0.94 Northbound c rn a Io N 3.1 % 0.9% o N J Right 1 ~ In 25 c ~ Thru 5 0 C 7 ~' OUt 31 Left 18 m J ~ is ~~©i Data File: Dougherty_Sierra - TMC (AM) Printed: 8/17/2007 Page: 1 PROJECT: Arroyo Vista Housing Development INTERSECTION: Dougherty Rd. and Sierra Ln. TYPE: Traffic Signal .... - s:~~~~~>.rt~~ Tel: (916) 910-2620/Fax: (916) 676-4883 hltP://www.fao-consulting.com COUNT DATE: May 23, 2007 START TIME: 4:OOPM LOCATION: Dublin, CA `I~'~~„ COUNT DAY: Wednesday END TIME: 6:00 PM COUNT ID: MCB/7 Northbound Southbound Eastbound Westbound Begin End Total Dougherty Road Doughtery Road Sierra Ln. Sierra Ln. Left Thru Ri ht Left Thru R' ht Left Thru Ri ht Left Thru Ri ht 16:00 16:15 576 17 259 9 2 237 11 12 1 24 3 0 2 16:15 16:30 636 13 343 4 3 225 9 12 0 23 4 1 0 16:30 16:45 625 15 302 4 2 238 12 10 1 32 6 0 2 16:45 17:00 610 12 298 5 5 230 13 16 0 19 8 2 1 17:00 17:15 692 12 358 1 2 227 16 33 0 35 5 1 1 17:15 17:30 769 11 424 2 1 258 11 24 0 30 3 1 4 17:30 17:45 813 4 482 . 3 2 263 15 14 2 20 4 3 0 17:45 18:00 775 21 438 8 1 243 14 16 2 20 6 1 3 Total 105 2905 36 19 1921 100 136 6 204 41 10 14' HOURLY 16:00 17:00 2447 57 1202 23 13 930 44 49 2 98 21 3 5 16:15 17:15 2563 51 1301 15 13 920 49 71 1 109 24 4 4 16:30 17:30 2696 49 1382 13 11 954 51 83 1 117 23 4 9 16:45 17:45 2884 39 1562 12 11 978 55 87 2 105 20 8 6 17:00 18:00 3049 48 1703 14 6 991 56 87 4 106 19 6 9 PEAK HOUR 17:00 18:00 3049 48 1703 14 6 991 56 87 4 106 19 6 9 t3y MOVemenl 7.(i% bb.t3% U.5% U.1% 3'1.5% 1.t3% 2.6% U.1% :i.5% U.6% U.Z% U.3% By Approach 57.9% 34.5% 6.5% 1.1 M o0 C ~ ~I ~ O ~ r (D ~ fD ~ Q) O ~ ~ J Southbound 87 Left ~ ~ Right 9 In a ~ In 197 `= H 34 4 Thru ~ a PHF = 0.94 g ~ Thru 6 w c m ~ Out ul a Out 110 25 106 Right ~ .~ Left 19 Northbound ~ ~ m ~ m' ~ c ~ ~ J W O A W O lO ~ Data File: Dougherty_Sierra - TMC (PM) Printed: 8/17/2007 Page: 2 ~~ k ,,. PROJECT: Arroyo Vista Housing Development INTERSECTION: Dougherty Rd. and Dublin Blvd. TYPE: Traffic Signal C[f M'..$U kFtn L+ Tel: (916) 910-2620/Fax: (916) 676-4883 htto:/lwww.fao-consu Iti ng.com COUNT DATE: May 23, 2007 START TIME: 7:00 AM LOCATION: Dublin, CA COUNT DAY: Wednesday END TIME: 9:00 AM COUNT ID: MCB/8 Northbound Southbound Eastbound Westbound Begin End Total Dougherty Rd. Dougherty Rd. Dublin Blvd. Dublin Blvd. LeR Thru R' hf Left Thru R' ht Left Thru R' ht Left Thru Ri ht 7:00 7:15 868 77 163 44 79 273 13 4 68 48 40 48 11 7:15 7:30 1059 81 169 42 120 344 14 9 61 76 48 53 42 7:30 7:45 956 86 164 51 79 275 8 4 54 59 58 73 45 7:45 8:00 1112 87 165 49 75 419 15 3 48 74 56 79 42 8:00 8:15 1015 89 170 53 77 318 14 12 51 74 53 65 39 8:15 8:30 1138 91 160 48 78 441 11 8 56 78 50 79 38 8:30 8:45 931 88 116 38 53 309 18 13 55 65 58 87 33 8:45 9:00 956 84 147 39 83 286 18 16 53 75 45 83 29 Total 599 1107 325 561 2380 92 53 392 .475 362 484 249'. HOURLY 7:00 8:00 3994 331 661 186 354 1311 49 20 230 257 201 253 139 7:15 8:15 4141 343 669 195 351 1356 50 28 214 283 214 270 167 7:30 8:30 4220 353 659 201 310 1454 47 27 209 285 216 297 163 7:45 8:45 4196 355 611 188 283 1487 58 35 210 291 216 311 151 8:00 9:00 4039 351 593 177 290 1354 61 48 214 293 206 314 138 PEAK HOUR 7:30 8:30 4220 353 659 201 31D 1454 47 27 209 285 216 297 163 "/o Cy Movemem 8.4 % 15.6% 4.8 % 7.3% :34.5% 1.1% By Approach 28.7% 42.9 51 ~ r` L m 0.' 27 Left In 521 209 Thru ~ Out 696 285 Right ~I rn O ~ r 7 L JI•n-~ V Southbound c 0 a PHF = 0.93 N N W 0.6% 5.0% 6.8% 5.1% 7.0% 3.9% 12.3% 16.0 o M J Right 163 ~ In 676 g" ~ Thru 297 C 7 G OUt 720 Left 216 Northbound ~ ~ ~ c 3 W ~ N Uf CTi O W cD ~ ~ Icy ~ I5 C~II W Data File: Dougherty_Dublin - TMC (AM) Printed: 8/17/2007 Page: 1 PROJECT: Arroyo Vista Housing Development INTERSECTION: Dougherty Rd. and Dublin Blvd TYPE: Traffic Signal _. CO?Y.StJL34iAfi. Tel: (916) 910-2620/Fax: (916) 676-4883 htto:llwww.fao-consu lting.com COUNT DATE: May 23, 2007 START TIME: 4:OOPM LOCATION: Dublin, CA COUNT DAY: Wednesday END TIME: 6:00 PM COUNT ID: MCB/8 Northbound Southbound Eastbound Westbound Begin End Total Dougherty Road Doughtety Road Dublin Blvd. Dublin Blvd. Left Thru Ri ht Left Thru R" ht Left Thru Ri ht Left Thru- Ri ht 16:00 16:15 1302 106 193 51 77 194 15 18 199 117 102 147 83 16:15 16:30 1283 89 244 55 79 156 16 38 120 100 117 184 85 16:30 16:45 1426 85 276 58 100 189 17 14 205 124 96 176 87 16:45 17:00 1341 98 264 60 99 134 15 25 201 139 88 146 74 17:00 17:15 1561 126 276 58 108 192 17 24 272 162 59 151 116 17:15 17:30 1364 130 268 57 87 149 21 25 175 103 59 174 118 17:30 17:45 1379 117 252 60 79 169 19 43 185 102 69 174 110 17:45 18:00 1380 88 250 60 66 161 24 40 183 120 85 181 123 Total 838 2023 459 695 1344 145 225' 1541 966 674 1332 795 HOURLY 16:00 17:00 5352 377 977 224 355 673 63 94 725 480 403 653 328 16:15 17:15 5611 398 1061 230 386 671 65 100 798 525 360 657 361 16:30 17:30 5693 438 1084 233 393 663 71 87 853 528 302 646 394 16:45 17:45 5645 470 1060 235 373 644 73 116 834 506 274 644 418 17:00 18:00 5684 461 1046 235 341 671 81 131 815 486 271 679 467 PEAK HOUR 16:30 17:30 5693 438 1084 233 393 663 71 87 853 528 302 646 394 By Movement 7.7% 19.0% 4.1 % 6.9% 11.7% 1.2% 1.5% 15.0% 9.3% 5.3% 11.3% 6.9% By Approach 30.8% 19.8% 25.8% 23.6% r` ~ ci ~ ~I ~ O r (O D) co r~ N L L ~ ,`JQnI.. In~I' J r v Southbound 87 Left ~ ~ Right 394 In 'o ~ In 1468 ~ .~". 1342 853 Thru ~ ~° PHF = 0.91 g ~ Thru 646 ~ c rv ~ Out w a Out 1155 1479 528 Right ~ ~ Left 302 Northbound m ~ m ~ c 0 Co ? W ~ lO ~ ~~ Data File: Dougherty_Dublin - TMC (PM) Printed: 8/17!2007 Page: 2 ^`- GD NSUt,T tl.1G Tel: (916) 910-2620/Fax: (916) 676-4883 httR:Ilvaww.fao-consu lting.com PROJECT: Arroyo Vista Housing Development COUNT DATE: May 24, 2007 INTERSECTION: Dougherty Rd. and I-580 WB OFF RAMPS START TIME: 7:00 AM TYPE: Traffic Signal LOCATION: Dublin, CA COUNT DAY: Thursday END TIME: 9:00 AM COUNT ID: MCB/9 Northbound Southbound Eastbound W estbound Begin End Total Dougherty Rd. Dougherty Rd. I-580 WB Off Ramp I-580 WB Off Ramp Left Thru R' ht Left Thru Ri ht Left Thru Ri ht Left Thru Ri ht 7:00 7:15 665 0 163 42 0 150 136 0 0 0 60 0 115 7:15 7:30 797 0 174 33 0 224 155 0 0 0 77 0 134 7:30 7:45 ~ 932 0 200 44 0 290 170 0 0 0 103 0 124 7:45 8:00 1009 0 234 53 0 343 149 0 0 0 113 0 119 8:00 8:15 984 0 170 65 0 359 183 0 0 0 106 0 100 8:15 8:30 867 0 138 47 0 268 216 0 0 0 105 0 92 8:30 8:45 850 0 149 51 0 283 151 0 0 0 100 0 116 8:45 9:00 809 0 132 58 0 281 149 0 0 0 99 0 91 Total -0 1228 335 0 1917 1161 0 0 0 663 -0 791f HOURLY 7:00 8:00 3404 0 770 171 0 1007 611 0 0 0 353 0 492 7:15 8:15 3722 0 778 195 0 1216 658 0 0 0 399 0 477 7:30 8:30 3792 0 743 209 0 1260 719 0 0 0 426 0 435 7:45 8:45 3709 0 691 216 0 1253 700 0 0 0 423 0 426 8:00 9:00 3509 0 589 222 0 1190 700 0 0 0 409 0 399 PEAK HOUR 7:30 8:30 3792 0 743 209 0 1260 719 0 0 0 426 0 435 tly Moveme0i U.U% 19.6 % 5.5% U.0% 33.2% 19.0% By Approach 25.1% 52.2% rn c r Q) n L Q~ Left In Thru ~ 719 Right of O U1 7 L JIF V Southbound c a PHF = 0.94 N A W r m Northbound c J .A W ~ IO 0.0% 0.0% U.U% 11.2% 0.U% 11.5% 0.0% 22.7% d J Right 435 ~ In 861 c ~ Thru C 7 a 209 Left 426 ,Z1 ra N O c0 j is Data File: Dougherty_I580 W B Ramps - TMC (AM) Printed: 8/17/2007 Page: 1 _ ~nresul.rra~ Tel: (916) 910-2620/Fax: (916) 676-4883 htto:!lwww.fao-consu Iting.com PROJECT: Arroyo Vista Housing Development COUNT DATE: May 24, 2007 INTERSECTION: Dougherty Rd. and I-580 WB OFF RAMPS START TIME: 4:OOPM TYPE: Traffic Signal LOCATION: Dublin, CA ~o~ ~~~ ~~ COUNT DAY: Thursday END TIME: 6:00 PM COUNT ID: MCB/9 Northbound Southbound Eastbound Westbound Begin End Total Dougherty Road Doughtery Road 1.580 WB Off Ramp I-580 WB Off Ramp Left Thru Ri ht Leff Thru R' ht Left Thru Ri ht Left Thru Ri ht 16:00 16:15 903 0 281 111 0 226 136 0 0 0 54 0 95 16:15 16:30 981 0 351 90 0 254 141 0 0 0 45 0 100 16:30 16:45 933 0 285 101 0 227 148 0 0 0 64 0 108 16:45 17:00 1122 0 347 139 0 317 89 0 0 0 88 0 141 17:00 17:15 837 0 289 86 0 198 128 0 0 0 49 0 87 17:15 17:30 886 0 336 63 0 251 114 0 0 0 55 0 68 17:30 17:45 807 0 268 45 0 219 109 0 0 0 54 0 113 17:45 18:00 770 0 274 57 0 189 90 0 0 0 46 0 115 Total 0 2432 ra92 0 1880 955 0 0 0 454 0 826 HOURLY 16:00 17:00 3940 0 1264 441 0 1024 514 0 0 0 251 0 445 16:15 17:15 3873 0 1273 416 0 996 506 0 0 0 246 0 436 16:30 17:30 3778 0 1258 389 0 993 478 0 0 0 256 0 404 16:45 17:45 3651 0 1241 333 0 985 439 0 0 0 245 0 408 17:00 18:00 3300 0 1168 251 0 856 440 0 0 0 204 0 381 PEAK HOUR 16:00 17:00 3940 0 1264 441 0 1024 514 0 0 0 251 0 445 "/o tsy naovemen[ u.u ~ 31.1% 71.1"% U.0% 26.0% 13.1% 0.0% 0.0% 0.0% 6.4 % 0.0% 11.3 By Approach 43.3% 39.1% 0.0 % 17.7 m m c~ r 5I o O N "' ° N ~ ~ x ~ ~ J Southbound Left ~ ~ Right 445 In c ~ In 695 Thru I~ ~° PHF = 0.88 g ~ Thru ~ C W = ~Ul a L)Ut 514 441 Right ~ ~ Left 251 Northbound -~ ~ N 3 tp ~ C ~' N A .~A ~ cV1~ IO ~ I= Data File: Dougherty_I580 W B Ramps - TMC (PM) Printed: 8/17/2007 Page: 2 . t,..J ,, ~....,, ~~ -~, ~_ Tel: (916) 910-2620/Fax: (916) 676-4883 ~://www.fao-consu Itinq.com PROJECT: Arroyo Vista Housing Development COUNT DATE: May 24, 2007 INTERSECTION: Hopyard Rd. and I-580 EB Off Ramp START TIME: 7:00 AM TYPE: Traffic Signal LOCATION: Dublin, CA COUNT DAY: Thursday END TIME: 9:00 AM COUNT ID: MCB/10 Northbound Southbound Eastbound Westbound Begin End Total Hopyard Rd. Hop and Rd. I-580 EB Off Ramp I-580 EB Off Ramp Leff Thru R' ht Leff Thru Ri ht Left Thru Ri ht Left Thru R' ht 7:00 7:15 765 0 120 36 0 294 42 135 0 138 0 0 0 7:15 7:30 738 0 116 30 0 286 44 123 0 139 0 0 0 7:30 7:45 848 0 120 41 0 275 56 134 0 222 0 0 0 7:45 8:00 956 0 136 49 0 350 70 125 0 225 0 0 0 8:00 8:15 908 0 102 46 0 345 70 104 0 241 0 0 0 8:15 8:30 899 0 125 34 0 331 91 115 0 203 0 0 0 8:30 8:45 887 0 123 45 0 344 79 91 0 205 0 0 0 8:45 9:00 879 0 135 32 0 342 77 100 0 193 0 0 0 Total 0 842 282 0 .2225 451 827 0 1$73 0 0 0 HOURLY 7:00 8:00 3306 0 492 156 0 1205 211 518 0 724 0 0 0 7:15 8:15 3449 0 474 166 0 1257 239 486 0 827 0 0 0 7:30 8:30 3610 0 483 170 0 1302 286 478 0 890 0 0 0 7:45 8:45 3649 0 486 175 0 1370 310 435 0 873 0 0 0 8:00 9:00 3572 0 485 158 0 1362 317 409 0 841 0 0 0 PEAK HOUR 7:45 8:45 3649 0 486 175 0 1370 310 435 0 873 0 0 0 % by nnovement o.o% 13.3"/° 4.8% 0.0% 37.6% 8.5% By Approach 18.1% 46.0% 0 c~ ~ O M L !T (,-Jn/~ r 435 Left In 1308 Thru I~ Out 310 873 Right ~I N O ~ O 7 L h Southbound c 0 ~° PHF = 0.95 W A W r Northbound c a 00 rn A IO 11.9% 0.0% 23.9% 0.0% 0.0% 0.0% 35.8% 0.0% N J Right ~ In c ~ Thru C 7 d 175 Left Z7 rr m m I~ Data File: Hopyard_I580 EB Ramps - TMC (AM) Printed: 8/17/2007 Page: 1 ~t,~~~LT~N~ Tel: (916) 910-2620/Fax: (916) 676-4883 htto://www.fao-consulti ng.com PROJECT: Arroyo Vista Housing Development COUNT DATE: May 24, 2007 INTERSECTION: Hopyard Rd. and I-580 EBOff Ramp START TIME: 4:OOPM TYPE: Traffic Signal LOCATION: Dublin, CA COUNT DAY: Thursday END TIME: 6:00 PM COUNT ID: MCB/10 Northbound Southbound Eastbound Westbound Begin End Total Hopyard Rd. Hopyard Rd. I-580 EB Off Ramp I-580 EB Off Ramp Left Thru R~ ht Left Thru R' ht Left Thru Ri ht Left Thru Ri ht 16:00 16:15 977 0 312 44 0 268 57 166 1 130 0 0 0 16:15 16:30 927 0 295 40 0 278 48 159 0 108 0 0 0 16:30 16:45 917 0 294 50 0 246 56 130 0 141 0 0 0 16:45 17:00 841 0 258 49 0 248 65 93 0 128 0 0 0 17:00 17:15 815 0 245 44 0 230 58 94 0 144 0 0 0 17:15 17:30 748 0 222 40 0 230 53 88 2 114 0 0 0 17:30 17:45 753 0 210 31 0 208 62 83 0 160 0 0 0 17:45 18:00 671 0 218 34 0 182 53 75 0 109 0 0 0 Total 0 2053 332- 0 1890 451 887 3 i033 0 0 0 HOURLY 16:00 17:00 3662 0 1158 183 0 1039 226 548 1 507 0 0 0 16:15 17:15 3500 0 1092 183 0 1002 227 476 0 521 0 0 0 16:30 17:30 3321 0 1019 183 0 955 231 405 2 526 0 0 0 16:45 17:45 3158 0 935 164 0 916 238 358 2 544 0 0 0 17:00 18:00 2987 0 895 149 0 851 225 340 2 526 0 0 0 PEAK HOUR 16:00 17:00 3662 0 1158 183 0 1039 .226 548 1 507 0 0 0 By Movement 0.0% 31.6% 5.0% 0.0% 28.4% 6.2% 15.0% 0.0% 13.8% 0.0% 0.0% D.D% °/ By Approach 36.6% 34.6% 28.8 % 0.0% ~ ~ c N ~I O O ~ ~ N ~ N ~ ~ ~ ~ ~ Jn~ ~ J r Southbound 548 Left ~ ~ Right In ~ ~ In 1055 `_ ~ 0 1 Thru ~ a PHF = 0.94 g ~ Thru N C N ~ Out W c Out 226 184 507 Right ~ ~ Left Northbound -~ ~ m ? ~ ~ c 3 cn 0° 0o w ~ c A IO ~ is Data File: Hopyard_I580 EB Ramps - TMC (PM) Printed: 8/17/2007 Page: 2 ,~ ~~ V ~a~:~ ~a PROJECT: Arroyo Vista Housing Development INTERSECTION: Dublin Blvd. and Scarlett Dr. TYPE: Traffic Signal Tel: (916) 910-2620/Fax: (916) 676-4883 hY-p://www.fao-consu Iti nq.com COUNT DATE: May 24, 2007 START TIME: 7:00 AM LOCATION: Dublin, CA COUNT DAY: Thursday END TIME: 9:00 AM COUNT ID: MCB/11 Northbound Southbound Eastbound Westbound Begin End Total Scarlett Drive Scarlett Drive Dublin Blvd. Dublin Blvd. Left Thru R' ht Left Thru Ri ht Left Thru R' ht LeR Thru Ri ht 7:00 7:15 364 9 0 13 0 0 0 0 197 4 6 135 0 7:15 7:30 373 5 0 9 0 0 0 0 208 2 5 144 0 7:30 7:45 416 14 0 3 0 0 0 1 211 6 0 180 0 7:45 8:00 419 15 0 2 0 0 0 3 206 5 4 183 0 8:00 8:15 410 14 0 4 0 0 0 1 195 8 5 183 0 8:15 8:30 325 15 0 1 0 0 0 2 166 1 5 134 0 8:30 8:45 359 12 0 3 0 0 0 0 182 9 1 152 0 8:45 9:00 386 15 0 9 0 0 0 2 177 3 14 166 0 Total 84 0 35 0 0 0 6 1365 35 28 1111 0 HOURLY 7:00 8:00 1572 43 0 27 0 0 0 4 822 18 16 642 0 7:15 8:15 1618 48 0 18 0 0 0 5 820 21 15 690 0 7:30 8:30 1570 58 0 11 0 0 0 8 778 20 15 680 0 7:45 8:45 1513 56 0 11 0 0 0 6 749 23 16 653 0 8:00 9:00 1480 56 0 17 0 0 0 5 720 20 26 635 0 PEAK HOUR 7:15 8:15 1618 48 0 18 0 0 0 5 820 21 15 690 0 ay Movement 3.0% 0.0 % 1.1% 0.0% 0.0% 0.0% 0.3% 50.7% 1.3% 0.9% 42.6% 0.0% By Approach 4.1 % 0.0% 52.3% 43.6% ~~ of ~ L Southbound 5 Left In 846 820 Thru IJ~ Out 738 21 Right c a PHF = 0.97 N A W r m A OD Northbound C ~ O J Right ~ In w 705 c ~ Thru 690 C G OU2 838 Left 15 ~1 .~.. ~ I~ Data File: Dublin_Scarlett - TMC {AM) Punted: 8/17!2007 Page: 1 PROJECT: Arroyo Vista Housing Development INTERSECTION: Dublin Blvd. and Scarlett Dr. TYPE: Traffic Signal _ ~~~~~t~~~~~ Tel: (916) 910-2620/Fax: (916) 676-4883 htto://www.fao-consu Iting.com COUNT DATE: May 24, 2007 START TIME: 4:OOPM LOCATION: Dublin, CA COUNT DAY: Thursday END TIME: 6:00 PM COUNT ID: MCB/11 Northbound Southbound Eastbound Westbound Begin End Total Scarlett Drive Scarlett Drive Dublin Blvd. Dublin Blvd. Left Thru Ri ht Left Thru R' ht Left Thru R' ht Left Thru Ri ht 16:00 16:15 703 28 0 12 0 0 0 8 377 4 9 266 0 16:15 16:30 735 28 0 11 0 0 0 9 379 5 8 296 0 16:30 16:45 677 24 0 6 0 0 0 6 347 8 3 283 0 16:45 17:00 722 18 0 8 0 0 0 4 391 4 8 289 0 17:00 17:15 767 27 0 6 0 0 0 1 400 1 8 325 0 17:15 17:30 785 42 0 15 0 0 0 2 387 3 3 333 0 17:30 17:45 739 18 0 12 0 0 0 2 368 4 6 329 0 17:45 18:00 733 23 0 5 0 0 0 3 374 4 3 320 0 Total 207 0 75 0 0 0 35 3023 34 47 2441 0 HOURLY 16:00 17:00 2837 98 0 36 0 0 0 27 1495 21 27 1134 0 16:15 17:15 2901 96 0 31 0 0 0 20 1517 18 26 1193 0 16:30 17:30 2952 110 0 35 0 0 0 14 1525 16 21 1230 0 16:45 17:45 3014 105 0 41 0 0 0 10 1545 13 25 1276 0 17:00 18:00 3025 109 0 39 0 0 0 9 1528 13 20 1307 0 PEAK HOUR 17:00 18:00 3025 109 0 39 0 0 0 9 1528 13 20 1307 0 ey MOVement 3.6% O.D% 1.3% 0.0% O.D % 0.0 % 0.3 % 50.5 % 0.4% 0.7% 43.2% 0.0 By Approach 4.9% 0.0% 51.2% 43.9° _~ of L ~ G7 t lY H Southbound 9 Left In 1549 1528 Thru IJ~ Out 1416 13 Right ~, c a PHF = 0.96 A W r m 0 ca Northbound c w to N J Right ~ In 1327 c ~ Thru 1307. G 7 fl' OUt 1566 Left 20 s ca co Is Data File: Dublin_Scarlett - TMC (PM) Printed: 8/17!2007 Page: 2 PROJECT: Arroyo Vista Housing Development INTERSECTION: Hacienda Dr. and Dublin Rd. TYPE: Traffic Signal ~_ __ ~~:NS~~~tM~ Tel: (916) 910-2620/Fax: (916) 676-4883 http://www.fao-consult"Lng.com COUNT DATE: May 30, 2007 START TIME: 7:00 AM LOCATION: Dublin, CA COUNT DAY: Wednesday END TIME: 9:00 AM COUNT ID: MCB/12 Northbound Southbound Eastbound Westbound Begin End Total Hacienda Rd Hacienda Rd Dublin Rd Dublin Rd Left Thru R" ht Left Thru Ri ht Left Thru Ri ht Left Thru Ri ht 7:00 7:15 432 95 86 12 4 46 12 10 19 18 39 86 5 7:15 7:30 494 98 101 13 2 72 10 5 34 21 40 91 8 7:30 7:45 576 91 123 19 14 77 14 5 36 27 42 115 13 7:45 8:00 632 78 144 17 6 101 16 18 49 35 49 109 9 8:00 8:15 519 55 88 18 2 77 20 13 66 32 47 89 11 8:15 8:30 492 47 98 19 5 65 8 9 64 27 58 85 8 8:30 8:45 542 77 109 31 1 69 11 9 66 32 47 88 2 8:45 9:00 497 69 106 36 3 56 11 14 55 15 49 76 8 Total 541 748 130 35 507 90 69 336 193 321 6G1 55 HOURLY 7:00 8:00 2134 362 453 61 27 296 51 39 139 102 169 401 34 7:15 8:15 2221 321 455 68 25 327 60 42 186 116 178 404 40 7:30 8:30 2219 271 452 74 28 320 58 45 216 121 196 398 40 7:45 8:45 2185 257 438 86 15 312 55 48 246 126 201 371 29 8:00 9:00 2050 248 401 105 12 267 49 44 252 106 201 338 28 PEAK HOUR 7:15 8:15 2221 321 455 68 25 327 60 42 186 116 .178 404 40 tsy MOVemen[ 14.x% 2U.5% 3.U% 1.1"/° 14.7% Z.7"/° 1.9"/° 8.4% 5.2 % 8.0 % 18.2% 1.8 By Approach 38.0% 18.5% 15.5% 28.0% r _~ ~ of o n u~ (D M N O1 n~ n~ J r v Southbound 42 Left ~ ~ Right 40 In v ~ In 344 ~ .:- 621 186 Thru ~~ .o° PHF = 0.88 ~ ~ Thru 404 0 ~ e m o Out w a ~ 785 279 116 Right ~ ~ Left 178 Northbound r- ~ ~ ~ 3 C ~ ~ ~ O) OD N I^ A ~ ~~ O A Data File: Hacienda_Dublin - TMC (AM) Printed: 8/17!2007 Page: 1 PROJECT: Arroyo Vista Housing Development INTERSECTION: Hacienda Dr. and Dublin Rd. TYPE: Traffic Signal Tel: (916) 910-2620/Fax: (916) 676-4883 htto://www.fao-consuiting.com COUNT DATE: May 30, 2007 START TIME: 4:OOPM LOCATION: Dublin, CA ~~~ ~ ~'~ ~.~ 0~ COUNT DAY: Wednesday END TIME: 6:00 PM COUNT ID: MCB/12 Northbound Southbound Eastbound W estbound Begin End Total Hacienda Rd Hacienda Rd Dublin Rd Dublin Rd Left Thru Ri ht Left Thru R" ht Left Thru Ri ht Left Thru Ri ht 16:00 16:15 932 60 73 76 12 122 17 35 253 83 40 154 8 16:15 16:30 987 44 95 76 14 111 15 35 304 78 53 159 2 16:30 16:45 1008 64 93 90 12 119 15 47 267 95 49 151 5 16:45 17:00 973 92 106 108 8 108 21 42 271 69 23 123 2 17:00 17:15 1126 106 134 108 13 131 25 49 313 77 44 120 6 17:15 17:30 1260 180 171 181 13 108 17 62 274 65 45 141 1 17:30 17:45 1144 118 178 160 11 117 21 71 250 54 36 125 4 17:45 18:00 1104 101 165 140 15 85 19 57 276 68 50 125 2 Total 765 1016 940 96 901 151 399 2208 588 340 1099 3T HOURLY 16:00 17:00 3900 260 368 350 45 461 69 160 1095 325 164 587 17 16:15 17:15 4094 306 429 383 46 469 76 174 1155 319 168 553 16 16:30 17:30 4367 443 505 488 45 466 78 200 1125 306 161 536 15 16:45 17:45 4503 496 589 557 44 464 85 224 1108 265 148 510 14 17:00 18:00 4634 505 648 589 51 440 83 239 1113 264 176 512 14 PEAK HOUR 17:00 18:00 4634 505 648 589 51 440 83 239 1113 264 176 512 14 "/o tly MOVefnenl lU.`J%o 14.U%o 7Z./%o 1.1"/o y.b"/o 1.t5% 5.Z% Z4.U"/o 5./"/0 3.C"/o 11.1"/o U.3% By Approach 37.6% 12.4% 34.9% 15.1% cl ~ i O) rn M ~ a0 ~ L ~ Gl t ~ F Southbound 239 Left In 1616 1113 Thru ~ Out 1099 264 Right c ~°, PHF = 0.92 N A W r m to O Northbound c rn A W o° IO 00 O J Right 14 ~ In 702 g ~ Thru 512 C 7 G ~Ut 1754 Left 176 m' cn OD a I~ N Data File: Hacienda_Dublin - TMC (PM) Printed: 8/17/2007 Page: 2 F P. a t OI t .._ c~Kautrr«c Tel: (916) 910-2620/Fax: (916) 676-4883 htto:/iwww.fao-consu Iti ng.com PROJECT: Arroyo Vista Housing Development COUNT DATE: May 30, 2007 INTERSECTION: Hacienda Dr. and I-580 WB Off Ramp START TIME: 7:00 AM TYPE: Traffic Signal LOCATION: Dublin, CA COUNT DAY: Wednesday END TIME: 9:00 AM COUNT ID: MCB/13 Northbound Southbound Eastbound Westbound Bggin End Total Hacienda Drive Hacienda Drive I-580 WB Off Ramp I-580 WB Off Ramp Left Thru R~ ht Left Thru Ri ht Left Thru R' ht Left Thru R' ht 7:00 7:15 524 0 163 28 0 64 80 0 0 0 111 0 77 7:15 7:30 494 0 138 44 0 60 77 0 0 0 116 0 59 7:30 7:45 665 0 207 65 0 91 86 0 0 0 117 0 100 7:45 8:00 620 0 206 50 0 94 80 0 0 0 121 0 69 8:00 8:15 666 0 198 49 0 94 108 0 0 0 151 0 65 8:15 8:30 601 0 193 56 0 116 81 0 0 0 89 0 66 8:30 8:45 602 0 186 49 0 98 79 0 0 0 144 0 46 8:45 9:00 586 0 204 41 0 101 64 0 0 0 117 0 60 Total 0 1291 342 0 817 593 0 0 0 849 0 482 HOURLY 7:00 8:00 2304 0 714 188 0 310 324 0 0 0 465 0 304 7:15 8:15 2446 0 749 209 0 340 351 0 0 0 505 0 293 7:30 8:30 2553 0 804 221 0 395 356 0 0 0 478 -0 300 7:45 8:45 2490 0 783 205 0 402 349 0 0 0 505 0 246 8:00 9:00 2456 0 781 195 0 408 333 0 0 0 500 0 238 PEAK HOUR 7:30 8:30 2553 0 804 221 0 395 356 0 0 0 478 0 300 % tly Movement U.0% 31.5% 8.6"/o U.0"/o 15.5% 13.y% By Approach 40.1% 29.4% ~~ ~ n M L m Left In Thru ~ o~! 356 Right v of ° u~ rn M 2 r JInF V Southbound c 0 a PHF = 0.96 w r m Northbound -~ c 00 O A Do IO J W 0.U% UA% U.U`Yo 1tl./% U.U% 11./% 0.0% 30.5% a~ Ir'~lJ', "l~ Right 300 ~ In 778 c ~ Thru c Out 221 Left 478 :U 3 N N N ~~ A Data File: Hacienda_I580 W B Ramps - TMC (AM) Printed: 8/1 712 0 0 7 Page: 1 Tel: (916) 910-2620/Fax: (916) 676-4883 hltP://www.fao-consu Iti ng.com PROJECT: Arroyo Vista Housing Development COUNT DATE: May 30, 2007 INTERSECTION: Hacienda Dr. and I-580 WB Off Ramp START TIME: 4:OOPM TYPE: Traffic Signal LOCATION: Dublin, CA 5f o ~~ ~~~ COUNT DAY: Wednesday END TIME: 6:00 PM COUNT ID: MCB/13 Northbound Southbound Eastbound W estbound Begin End Total Hacienda Drive Hacienda Drive I-580 WB Off Ramp I-580 WB Off Ramp Left Thru Ri ht Left Thru R' ht Left Thru Ri ht Left Thru Ri ht 16:00 16:15 845 0 314 166 0 129 145 0 0 0 32 0 60 16:15 16:30 805 0 280 149 0 122 150 0 0 0 46 0 58 16:30 16:45 935 0 305 169 0 143 208 0 0 0 50 0 60 16:45 17:00 903 0 272 194 0 144 160 0 0 0 77 0 57 17:00 17:15 1182 0 463 252 0 155 182 0 0 0 64 0 65 17:15 17:30 1187 0 498 208 0 158 155 0 0 0 69 0 100 17:30 17:45 1123 0 469 175 0 141 132 0 0 0 96 0 109 17:45 18:00 1164 0 498 196 0 138 117 0 0 0 75 0 139 Total 0 3100 1509 0 1129 1248 0 0 0 510 0 648 HOURLY 16:00 17:00 3489 0 1171 678 0 537 662 0 0 0 206 0 235 16:15 17:15 3825 0 1320 764 0 564 700 0 0 0 238 0 240 16:30 17:30 4208 0 1539 823 0 599 705 0 0 0 260 0 282 16:45 17:45 4395 0 1703 828 0 598 629 0 0 0 306 0 331 17:00 18:00 4655 0 1929 830 0 593 586 0 0 0 304 0 414 PEAK HOUR 17:00 18:00 4655 0 1929 830 0 593 586 0 0 0 304 0 414 iorsynnovement u.ur 41.4% 7/.b"/o U.V% lY./"/o lL.tl% By Approach 59.3% 25.3° rn ~, W L Ol Left In Thru ~~ Out 586 Right N of M N M T 7 L JIrH V Southbound e a PHF = 0.98 w r fD ~` Northbound 3 C (O N ~ IO J u.uro u.uro u.uro o.oro u.uro u.aro 0.0% 15.4% N J Right 414 ~ In w 718 c ~ Thru a Out 830 Left 304 ,Z1 f0 .~. DD W O N ~ 1= Data File: Hacienda_I580 W B Ramps - TMC (PM) Printed: 8/17/2007 Page: 2 ~g~t_xtp~ Tel: (916) 910-2620/Fax: (916) 676-4883 h~tp:!/www.fao-consu Itino.com PROJECT: Arroyo Vista Housing Development COUNT DATE: May 30, 2007 INTERSECTION: Hacienda Dr. and I-580 Off Ramp START TIME: 7:00 AM TYPE: Traffic Signal LOCATION: Dublin, CA S I I o f ~QI COUNT~DAY: Wednesday END TIME: 9:00 AM COUNT ID: MCB/14 Northbound Southbound Eastbound Westbound Begin End Total Hacienda Rd Hacienda Rd I-580 EB Off Ramp I-580 EB Off Ramp Leff Thru R' ht Leff Thru Ri ht Leff Thru Ri ht Left Thru Ri ht 7:00 7:15 645 0 95 24 0 155 27 148 0 196 0 0 0 7:15 7:30 670 0 101 29 0 171 20 158 0 191 0 0 0 7:30 7:45 816 0 106 73 0 164 46 190 0 238 0 0 0 7:45 8:00 883 0 98 86 0 212 43 188 0 257 0 0 0 8:00 8:15 816 0 91 75 0 184 47 158 0 261 0 0 0 8:15 8:30 785 0 96 64 0 177 53 160 0 236 0 0 0 8:30 8:45 663 0 87 25 0 156 13 156 0 226 0 0 0 8:45 9:00 726 0 83 70 0 175 18 161 0 221 0 0 0 Total 0 674 375 0 1?20 249 1156 0 1605 0 0 0 HOURLY 7:00 8:00 3014 0 400 211 0 703 136 683 0 882 0 0 0 7:15 8:15 3185 0 395 263 0 732 156 692 0 947 0 0 0 7:30 8:30 3301 0 391 298 0 737 189 694 0 992 0 0 0 7:45 8:45 3148 0 372 250 0 730 155 661 0 980 0 0 0 8:00 9:00 2991 0 357 234 0 692 131 634 0 944 0 0 0 PEAK HOUR 7:30 8:30 3301 0 ~ 391 298 0 737 189 694 0 992 0 0 0 By Movement 0.0 % 11.8 % 9.0% 0.0% 22.3% 5.7% 21.0 % 0.0 % 30.1% 0.0% 0.0% 0.0 By Approach 20.9 % 28.0% 51.1 % 0.0% u~ cl N ~ O p~ O W M n r 2 rn L (,-JQ: i- r Southbound 694 Left In 1686 Thru ~ Out 189 992 Right c 0 ~ PHF = 0.93 N A W r m x Northbound c w O IV IO J Right ~ In N c ~ Thru C 7 G OUt 298 Left N u1 OD rn ~ ~~ Data File: Hacienda_I580 EB Ramp -TMC (AM) Printed: 8/17/2007 Page: 1 Tel: (916) 910-2620/Fax: (916) 676-4883 ~://www.fao-consulti ng.com PROJECT: Arroyo Vista Housing Development COUNT DATE: May 30, 2007 INTERSECTION: Hacienda Dr. and I-580 Off Ramp START TIME: 4:OOPM TYPE: Traffic Signal LOCATION: Dublin, CA 5I Z o~ 80~ COUNT DAY: Wednesday END TIME: 6:00 PM COUNT ID: MCB/14 Northbound Southbound Eastbound Westbound Begin End Total Hacienda Rd Hacienda Rd I-580 EB Off Ramp I-580 EB Off Ramp Left Thru Ri ht Left Thru R' ht Left Thru Ri ht Left Thru Ri ht 16:00 16:15 988 0 303 165 0 164 74 170 0 111 0 0 0 16:15 16:30 987 0 304 159 0 167 69 189 0 100 0 0 0 16:30 16:45 1025 0 373 162 0 144 65 189 0 93 0 0 0 16:45 17:00 1007 0 359 126 0 154 57 215 0 95 0 0 0 17:00 17:15 1213 0 440 160 0 159 69 281 0 105 0 0 0 17:15 17:30 1254 0 494 140 0 136 73 279 0 132 0 0 0 17:30 17:45 1245 0 471 144 0 165 49 287 0 129 0 0 0 17:45 18:00 1208 0 390 158 0 176 72 296 0 117 0 0 0 Total D 3135 1213 0 1264 527 1905 0 882 0 0 0 HOURLY 16:00 17:00 4007 0 1339 612 0 629 265 763 0 400 0 0 0 16:15 17:15 4232 0 1476 606 0 624 259 873 0 393 0 0 0 16:30 17:30 4499 0 1666 588 0 593 264 963 0 425 0 0 0 16:45 17:45 4719 0 1765 570 0 614 248 1062 0 461 0 0 0 17:00 18:00 4919 0 1796 601 0 635 263 1142 0 482 0 0 0 PEAK HOUR 17:00 18:00 4919 0 1796 601 0 635 263 1142 0 -482 0 0 0 tly MOVemen[ U.V% ;Sti.S% 11.1""/o U.U"/o 1L.y"/o 5.3% 1:i.1"/o U.U% y.C"/o U.U% U.V% U.U"/o By Approach 48.7% 18.3 % 33.0 % 0.0% aD c~ m O=I ~ ~ N N /Mp t = ~ \,X-/ r~ ~ ('J r ~' ~/ Southbound 1142 Left ~ ~ Right In v ~ In 1624 ~ ~ 0 Thru ~~ a PHF = 0.98 g ~ Thru Out w ° Out 263 601 482 Right ~, .~ Left Northbound r '~ ~ m ~ ~ ~ c ? ~ rn ~ o c ~p ~ V IO J Data File: Hacienda_I580 EB Ramp - TMC (PM) Printed: 8/17/2007 Page: 2 s~3~~b Appendix C -Level of Service Worksheets: Existing Conditions ~ ~C Existing Conditions -------------------- AM Tue Apr 8, 2008 11:46:22 ------------------------------------------ Page 1-1 ------------------ Arroyo Vista Housing Redevelopment Traffic Impact Study Existing Condition - AM - -------------------- ------------------------------------------ Scenario Report -- --------------- Scenario: Existing Conditions AM Command: Existing AM Volume: Existing AM Geometry: Existing Impact Fee: Default Impact Fee Trip Generation: Default Trip Generation Trip Distribution: Default Trip Distribution Paths: Default Path Routes: Default Route Configuration: Default Configuration ,~ ~ ~-1 Traffix 7.9.0215 (c) 2008 Dowling Assoc. Licensed to TJKM, PLEASANTON, CA Existing Conditions AM Tue Apr 8, 2008 11:46:23 Page 2-1 Arroyo Vista Housing Redevelopment Traffic Impact Study Existing Condition - AM -------------------------------------------------------------------------------- Level Of Service Computation Report CCTALOS Method (Base Volume Alternative) ******************************************************************************** Intersection #1 Dougherty Road/Amador valley Boulevard ******************************************************************************** Cycle (sec): 60 Critical Vol./Cap.(X): 0.747 Loss Time (sec): 9 (Y+R=4.0 sec) Average Delay (sec/veh): xxxxxx Optimal Cycle: 74 Level Of Service: C ******************************************************************************** Approach: North Bound South Bound East Bound West Bound - Movement : L - T - R L - T - R L - T - R L - T - R ------------~---------------I~---------------~I---------------~I---------------~ Control: Protected Protected Split Phase Split Phase Rights: Include Include Include Include Min. Green: 0 0 0 0 0 0 0 0 0 0 0 0 Lanes : 1 0 2 0 0 0 0 1 1 0 1 0 0 0 1 0 0 0 0 0 ------------I---------------~~---------------~I---------------~~---------------~ Volume Module: Base Vol: 358 456 0 0 1348 216 94 0 324 0 0 0 Growth Adj: 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 Initial Bse: 358 456 0 0 1348 216 94 0 324 0 0 0 User Adj: 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 PHF Adj: 0.96 0.96 0.96 0.96 0.96 0.96 0.96 0.96 0.96 0.96 0.96 0.96 PHF Volume: 373 475 0 0 1404 225 98 0 338 0 0 0 Reduct Vol: 0 0 0 0 0 0 0 0 0 0 0 0 Reduced Vol: 373 475 0 0 1404 225 98 0 338 0 0 0 RTOR Reduct: 0 0 0 0 0 0 0 0 338 0 0 0 RTOR Vol: 373 475 0 0 1404 225 98 0 0 0 0 0 PCE Adj: 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 MLF Adj: 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 FinalVolume: 373 475 0 0 1404 225 98 0 0 0 0 0 ------------I---------------II---------------~~---------------~~---------------~ Saturation Flow Module: Sat/Lane: 1720 1720 1720 1720 1720 1720 1720 1720 1720 1720 1720 1720 Adjustment: 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 Lanes: 1.00 2.00 0.00 0.00 1.72 0.28 1.00 0.00 1.00 0.00 0.00 0.00 Final Sat.: 1720 3440 0 0 2965 475 1720 0 1720 0 0 0 ------------~---------------~~---------------~I---------------~~---------------~ Capacity Analysis Module: Vol/Sat: 0.22 0.14 0.00 0.00 0.47 0.47 0.06 0.00 0.00 0.00 0.00 0.00 Crit Volume: 373 815 98 0 Crit Moves: **** **** **** ******************************************************************************** Traffix 7.9.0215 (c) 2008 Dowling Assoc. Licensed to TJKM, PLEASANTON, CA Existing Conditions AM Tue Apr 8, 2008 11:46:23 Page 3-1 Arroyo Vista Housing Redevelopment Traffic Impact Study Existing Condition - AM -------------------------------------------------------------------------------- Level Of Service Computation Report CCTALOS Method (Base Volume Alternative) ******************************************************************************** Intersection #2 Dougherty Road/Scarlett Drive ******************************************************************************** Cycle (sec): 80 Critical Vol./Cap.(X) 0.584 Loss Time (sec): 9 (Y+R=4.0 sec) Average Delay (sec/veh): xxxxxx Optimal Cycle: 45 Level Of Service: A Approach: North Bound South Bound East Bound West Bound Movement : L - T - R L - T - R L - T - R L - T - R ------------~---------------~I---------------~I---------------I~---------------~ Control: Protected Protected Permitted Permitted Rights: Include Include Include Include Min. Green: 0 0 0 0 0 0 0 0 0 0 0 0 Lanes : 1 0 2 0 1 1 0 2 0 1 0 0 1! 0 0 1 0 0 1 0 ------------~---------------~---------------~~---------------~---------------I Volume Module: Base Vol: 14 778 8 8 1668 6 17 0 74 26 1 10 Growth Adj: 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 Initial Bse: 14 778 8 8 1668 6 17 0 74 26 1 10 User Adj: 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 PHF Adj: 0.96 0.96 0.96 0.96 0.96 0.96 0.96 0.96 0.96 0.96 0.96 0.96 PHF Volume: 15 810 8 8 1738 6 18 0 77 27 1 10 Reduct Vol: 0 0 0 0 0 0 0 0 0 0 0 0 Reduced Vol: 15 810 8 8 1738 6 18 0 77 27 1 10 RTOR Reduct: 0 0 8 0 0 6 0 0 0 0 0 0 RTOR Vol: 15 810 0 8 1738 0 18 0 77 27 1 10 PCE Adj: 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 MLF Adj: 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 FinalVolume: 15 810 0 8 1738 0 16 0 77 27 1 10 ------------I---------------~~---------------~~---------------~---------------I Saturation Flow Module: Sat/Lane: 1720 1720 1720 1720 1720 1720 1720 1720 1720 1720 1720 1720 Adjustment: 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 Lanes: 1.00 2.00 1.00 1.00 2.00 1.00 0.19 0.00 0.81 1.00 0.09 0.91 Final Sat.: 1720 3440 1720 1720 3440 1720 321' 0 1399 1720 156 1564 Capacity Analysis Module: Vol/Sat: 0.01 0.24 0.00 0.00 0.51 0.00 0.06 0.00 0.06 0.02 0.01 0.01 Crit Volume: 15 869 95 27 Crit Moves: **** **** **** **** ******************************************************************************** Traffix 7.9.0215 (c) 2008 Dowling Assoc. Licensed to TJKM, PLEASANTON, CA Existing Conditions AM Tue Apr 8, 2008 11:46:23 Page 4-1 Arroyo Vista Housing Redevelopment Traffic Impact Study Existing Condition - AM -------------------------------------------------------------------------------- Level Of Service Computation Report CCTALOS Method (Base Volume Alternative) Intersection #3 Dougherty Road/Sierra Lane ******************************************************************************** Cycle (sec): 60 Critical Vol./Cap.(X): 0.660 Loss Time (sec): 12 (Y+R=4.0 sec) Average Delay (sec/veh): xxxxxx Optimal Cycle: 67 Level Of Service: B ******************************************************************************** Approach: North Bound South Bound East Bound West Bound Movement : L - T - R L - T - R L - T - R L - T - R ------------I---------------I---------------~---------------~~---------------I Control: Protected Protected Protected Protected Rights: Include Include Include Include Min. Green: 0 0 0 0 0 0 0 0 0 0 0 0 Lanes : 1 0 2 0 1 1 0 2 0 1 1 0 1 0 1 1 0 0 1 0 Volume Module: Base Vol: 150 768 19 10 1673 85 31 2 50 18 5 1 Growth Adj: 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 Initial Bse: 150 768 19 10 1673 85 31 2 50 18 5 1 User Adj: 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 PHF Adj: 0.94 0.94 0.94 0.94 0.94 0.94 0.94 0.94 0.94 0.94 0.94 0.94 PHF Volume: 160 817 20 11 1780 90 33 2 53 19 5 1 Reduct Vol: 0 0 0 0 0 0 0 0 0 0 0 0 Reduced Vol: 160 817 20 11 1780 90 33 2 53 19 5 1 RTOR Reduct: 0 0 19 0 0 33 0 0 53 0 0 0 RTOR Vol: 160 817 1 11 1780 57 33 2 0 19 5 1 PCE Adj: 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 MLF Adj: 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 FinalVolume: 160 817 1 11 1780 57 33 2 0 19 5 1 ---------------------------I~---------------~---------------~~---------------I Saturation Flow Module: Sat/Lane: 1650 1650 1650 1650 1650 1650 1650 1650 1650 1650 1650 1650 Adjustment: 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 Lanes: 1.00 2.00 1.00 1.00 2.00 1.00 1.00 1.00 1.00 1.00 0.83 0.17 Final Sat.: 1650 3300 1650 1650 3300 1650 1650 1650 1650 1650 1375 275 ------------~-~-------------I~------------------------------~~--------------- Capacity Analysis Module: Vol/Sat: 0.10 0.25 0.00 0.01 0.54 0.03 0.02 0.00 0.00 0.01 0.00 0.00 Crit Volume: 160 890 33 6 Crit Moves: **** **** **** **** ******************************************************************************** Traffix 7.9.0215 (c) 2008 Dowling Assoc. Licensed to TJKM, PLEASANTON, CA ea~° ~~~ ~~ Existing Conditions AM Tue Apr 8, 2008 11:46:23 Page 5-1 Arroyo Vista Housing Redevelopment Traffic Impact Study Existing Condition - AM -------------------------------------------------------------------------------- Level Of Service Computation Report CCTALOS Method (Base Volume Alternative) ******************************************************************************** Intersection #4 Dougherty Road/Dublin Boulevard ******************************************************************************** Cycle (sec): 150 Critical Vol./Cap.(X): 0.666 Loss Time (sec): 12 (Y+R=4.0 sec) Average Delay (sec/veh): xxxxxx Optimal Cycle r 68 Level Of Service: B **************************************,r***************************************** Approach: North Bound South Bound East Bound West Bound Movement : L - T - R L - T - R L - T - R L - T - R ------------~---------------~~---------------II---------------~~---------------I Control: Protected Protected Protected Protected Rights: Include Include Include Include Min. Green: 0 0 0 0 0 0 0 0 0 0 0 0 Lanes : 2 0 1 1 0 2 0 2 1 0 1 0 2 0 1 2 0 2 0 1 ------------~---------------~~---------------I---------------I~---------------~ Volume Module: Base Vol: 542 624 401 310 1454 47 27 209 285 216 297 163 Growth Adj: 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 Initial Bse: 542 624 401 310 1454 47 27 209 285 216 297 163 User Adj: 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 PHF Adj: 0.93 0.93 0.93 0.93 0.93 0.93 0.93 0.93 0.93 0.93 0.93 0.93 PHF Volume: 583 671 431 333 1563 51 29 225 306 232 319 175 Reduct Vol: 0 0 0 0 0 0 0 0 0 0 0 0 Reduced Vol: 583 671 431 333 1563 51 29 225 306 232 319 175 RTOR Re duct: 0 0 0 0 0 0 0 0 306 0 0 175 RTOR Vol: 583 671 431 333 1563 51 29 225 0 232 319 0 PCE Adj: 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 MLF Adj: 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 FinalVolume: 583 671 431 333 1563 51 29 225 0 232 319 0 Saturation Flow Module: Sat/Lane: 1650 1650 1650 1650 1650 1650 1650 1650 1650 1650 1650 1650 Adjustment: 0.91 1.10 1.10 0.91 1.00 1.00 1.00 1.00 1.00 0.91 1.00 1.00 Lanes: 2.00 1.22 0.78 2.00 2.91 0.09 1.00 2.00 1.00 2.00 2.00 1.00 Final Sat.: 3000 2210 1420 3000 4795 155 1650 3300 1650 3000 3300 1650 Capacity Analysis Module: Vol/Sat: 0.19 0.30 0.30 0.11 0.33 0.33 0.02 0.07 0.00 0.08 0.10 0.00 Crit Volume: 291 538 112 116 Crit Moves• **** **** **** **** ******************************************************************************** Traffix 7.9.0215 (c) 2008 Dowling Assoc. Licensed to TJKM, PLEASANTON, CA a~; ~,~ ~_ ~ ~ ~~ ..~ Existing Conditions AM Tue Apr 8, 2008 11:46:23 Page 6-1 Arroyo Vista Housing Redevelopment Traffic Impact Study Existing Condition - AM -------------------------------------------------------------------------------- Level Of Service Computation Report CCTALOS Method (Base Volume Alternative) ******************************************************************************** Intersection #5 Dougherty Road/Westbound I-580 off-ramp ******************************************************************************** Cycle (sec): 60 Critical Vol./Cap.(X): 0.577 Loss Time (sec): 6 (Y+R=4.0 sec) Average Delay (sec/veh): xxxxxx Optimal Cycle: 34 Level Of Service: A ******************************************************************************** Approach: North Bound South Bound East Bound west Bound Movement : L - T - R L - T - R L - T - R L - T - R ------------~---------------~~---------------I---------------I~---------------~ Control: Protected Protected Split Phase Split Phase Rights: Include Ignore Include Include Min. Green: 0 0 0 0 0 0 0 0 0 0 0 0 Lanes: 0 0 3 0 0 0 0 2 0 0 0 0 0 0 0 2 0 0 0 2 Volume Module: Base Vol: 0 1015 0 0 1260 0 0 0 0 426 0 552 Growth Adj: 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 Initial Bse: 0 1015 0 0 1260 0 0 0 0 426 0 552 User Adj: 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 PHF Adj: 0.94 0.94 0.94 0.94 0.94 0.94 0.94 0.94 0.94 0.94 0.94 0.94 PHF Volume: 0 1080 0 0 1340 0 0 0 0 453 0 587 Reduct Vol: 0 0 0 0 0 0 0 0 0 0 0 0 Reduced Vol: 0 1080 0 0 1340 0 0 0 0 453 0 587 RTOR Reduct: 0 0 0 0 0 0 0 0 0 0 0 0 RTOR Vol: 0 1080 0 0 1340 0 0 0 0 453 0 587 PCE Adj: 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 MLF Adj: 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 FinalVolume: 0 1080 0 0 1340 0 0 0 0 453 0 587 Saturation Flow Module: Sat/Lane: 1720 1720 1720 1720 1720 1720 1720 1720 1720 1720 1720 1720 Adjustment: 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 0.91 1.00 0.91 Lanes: 0.00 3.00 0.00 0.00 2.00 0.00 0.00 0.00 0.00 2.00 0.00 2.00 Final Sat.: 0 5160 0 0 3440 0 0 0 0 3127 0 3127 ------------~---------------~I---------------~---------------~~---------------~ Capacity Analysis Module: Vol/Sat: 0.00 0.21 0.00 0.00 0.39 0.00 0.00 0.00 0.00 0.14 0.00 0.19 Crit Volume: 0 670 0 294 Crit Moves: **** **** **** ******************************************************************************** Traffix 7.9.0215 (c) 2008 Dowling Assoc. Licensed to TJKM, PLEASANTON, CA Existing Conditions AM Tue Apr 8, 2008 11:46:23 Page 7-1 Arroyo Vista Housing Redevelopment Traffic Impact Study Existing Condition - AM -------------------------------------------------------------------------------- Level Of Service Computation. Report CCTALOS Method (Base Volume Alternative) ******************************************************************************** Intersection #6 Hopyard Road/Eastbound I-580 off-ramp ******************************************************************************** Cycle (sec): 60 Critical Vol./Cap.(X): 0.720 Loss Time (sec): 6 (Y+R=4.0 sec) Average Delay (sec/veh): xxxxxx Optimal Cycle: 52 Level Of Service: C ******************************************************************************** Approach: North Bound South Bound East Bound West Bound Movement : L - T - R L T - R L - T - R L - T - R ------------I---------------~I---------------~~---------------~~---------------~ Control: Protected Protected Split Phase Split Phase Rights: Include Ignore Include Include Min. Green: 0 0 0 0 0 0 0 0 0 0 0 0 Lanes: 0 0 3 0 0 0 0 3 0 0 2 0 0 0 2 0 0 0 0 0 ------------~---------------~~---------------II---------------~~---------------~ Volume Module: Base Vol: 0 790 0 0 1370 0 590 0 1310 0 0 0 Growth Adj: 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 Initial Bse: 0 790 0 0 1370 0 590 0 1310 0 0 0 User Adj: 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 PHF Adj: 0.95 0.95 0.95 0.95 0.95 0.95 0.95 0.95 0.95 0.95 0.95 0.95 PHF Volume: 0 832 0 0 1442 0 621 0 1379 0 0 0 Reduct Vol: 0 0 0 0 0 0 0 0 0 0 0 0 Reduced Vol: 0 832 0 0 1442 0 621 0 1379 0 0 0 RTOR Reduct: 0 0 0 0 0 0 0 0 0 0 0 0 RTOR Vol: 0 832 0 0 1442 0 621 0 1379 0 0 0 PCE Adj: 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 MLF Adj: 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 FinalVolume: 0 832 0 0 1442 0 621 0 1379 0 0 0 ------------~------------------------------~~---------------~I---------------I Saturation Flow Module: Sat/Lane: 1720 1720 1720 1720 1720 1720 1720 1720 1720 1720 1720 1720 Adjustment: 1.00 1.00 1.00 1.00 1.00 1.00 0.91 1.00 0.91 1.00 1.00 1.00 Lanes: 0.00 3.00 0.00 0.00 3.00 0.00 2.00 0.00 2.00 0.00 0.00 0.00 Final Sat.: 0 5160 0 0 5160 0 3127 0 3127 0 0 0 ------------I---------------~------------------------------~~---------------~ Capacity Analysis Module: Vol/Sat: 0.00 0.16 0.00 0.00 0.28 0.00 0.20 0.00 0.44 0.00 0.00 0.00 Crit Volume: 0 481 689 0 Crit Moves: **** **** **** ******************************************************************************** Traffix 7.9.0215 (c) 2008 Dowling Assoc. Licensed to TJKM, PLEASANTON, CA G C"'" ~ >a ~ ~~ , Existing Conditions AM Tue Apr 8, 2008 11:46:23 Page 8-1 Arroyo Vista Housing Redevelopment Traffic Impact Study Existing Condition - AM -------------------------------------------------------------------------------- Level Of Service Computation Report CCTALOS Method (Base Volume Alternative) ******************************************************************************** Intersection #7 Dublin Boulevard/Scarlett Drive ******************************************************************************** Cycle (sec): 100 Critical Vol./Cap.(X): 0.202 Loss Time (sec): 12 (Y+R=4.0 sec) Average Delay (sec/veh): xxxxxx Optimal Cycle: 29 Level Of Service: A ******************************************************************************** Approach: North Bound South Bound East Bound west Bound Movement : L - T - R L - T - R L - T - R L - T - R ------------~---------------~~---------------~~---------------~~---------------I Control: Protected Protected Protected Protected Rights: Include Include Include Include Min. Green: 0 0 0 0 0 0 0 0 0 0 0 0 Lanes : 1 0 0 0 1 1 0 0 1 0 1 0 3 0 1 1 0 3 0 0 ------------~---------------~~---------------~~---------------~I---------------~ Volume Module: Base Vol: 48 0 18 0 0 0 5 820 21 15 690 0 Growth Adj: 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 Initial Bse: 48 0 18 0 0 0 5 820 21 15 690 0 User Adj: 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 PHF Adj: 0.97 0.97 0.97 0.97 0.97 0.97 0.97 0.97 0.97 0.97 0.97 0.97 PHF Volume: 49 0 19 0 0 0 5 845 22 15 711 0 Reduct Vol: 0 0 0 0 0 0 0 0 0 0 0 0 Reduced Vol: 49 0 19 0 0 0 5 845 22 15 711 0 RTOR Reduct: 0 0 15 0 0 0 0 0 22 0 0 0 RTOR Vol: 49 0 3 0 0 0 5 845 0 15 711 0 PCE Adj: 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 MLF Adj: 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 FinalVolume: 49 0 3 0 0 0 5 845 0 15 711 0 ------------~---------------~~---------------I~---------------~---------------~ Saturation Flow Module: Sat/Lane: 1720 1720 1720 1720 1720 1720 1720 1720 1720 1720 1720 1720 Adjustment: 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 Lanes: 1.00 0.00 1.00 1.00 1.00 0.00 1.00 3.00 1.00 1.00 3.00 0.00 Final Sat.: 1720 0 1720 1720 1720 0 1720 5160 1720 1720 5160 0 ------------~---------------~~---------------~~---------------~I---------------~ Capacity Analysis Module: Vol/Sat: 0.03 0.00 0.00 0.00 0.00 0.00 0.00 0.16 0.00 0.01 0.14 0.00 Crit Volume: 49 0 282 15 Crit Moves: **** **** **** ******************************************************************************** Traffix 7.9.0215 (c) 2008 Dowling Assoc. Licensed to TJKM, PLEASANTON, CA ~Z ~~ g ~; ~ Existing Conditions AM Tue Apr 8, 2008 11:46:23 Page 9-1 ----------------- ----------------- Arroyo Vista ---------------------------- Housing Redevelopment ------ ------------ Traff ic Impact Study Existing Condition - AM ----------------- --------------------------------------------- Level Of Service Computation Report ------ ------------ CCTALOS Method (Base Volume Alternative) ~, ***************** ***************** ********************************** ************ Intersection #8 H acienda Drive/Dub lin Boulevard ***************** ***************** ********************************** ************ a Cycle (sec): 90 Critical Vol./Cap.(X): 0.284 Loss Time (sec): 12 (Y+R=4.0 sec) Average Delay (sec/veh ): xxxxxx ~ Optimal Cycle: 32 Level Of Service: A ***************** ***************** ********************************** ************ w~ Approach: No rth Bound South Bound East Bound W est Bound Movement : L - T - R L - T - R L - T - R L - T - R ~' ---------------- Control: P -----------~---- rotected P -----------~~--------------- rotected Protected I~---- P -----------~ rotected Rights: Include Include Include Include Min. Green: 0 0 0 0 0 0 0 0 0 0 0 0 Lanes: 3 0 2 0 2 2 0 3 0 1 2 0 3 0 2 2 0 2 1 0 ------------~---- -----------~---- -----------~I--------------- ~~---- -----------~ w¢ Volume Module: Base Vol: 321 455 68 25 327 60 42 186 116 178 404 40 Growth Adj: 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 Initial Bse: 321 455 68 25 327 60 42 186 116 178 404 40 „~~ User Adj: 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 PHF Adj: 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 , PHF Volume: 365 517 77 28 372 68 48 211 132 202 459 45 Reduct Vol: 0 0 0 0 0 0 0 0 0 0 0 0 Reduced Vol: 365 517 77 28 372 68 48 211 132 202 459 45 RTOR Reduct: 0 0 77 0 0 26 0 0 132 0 0 0 ;;,~; RTOR Vol: 365 517 0 28 372 42 48 211 0 202 459 45 PCE Adj: 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1 .00 1.00 MLF Adj: 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 . 1.00 1.00 FinalVOlume: 365 517 0 28 372 42 48 211 0 202 459 45 ;.:,: ------------I---- Saturation Flow M -----------I~---- odule: -----------~~--------------- ~~---- -----------~ Sat/Lane: 1650 1650 1650 1650 1650 1650 1650 1650 1650 1650 1650 1650 Adjustment: 0.87 1.00 0.91 0.91 1.00 1.00 0.91 1.00 0..91 0.91 1.00 1.00 Lanes: 3.00 2.00 2.00 2.00 3.00 1.00 2.00 3.00 2.00 2.00 2.73 0.27 Final Sat.: 4307 3300 3000 3000 4950 1650 3000 4950 3000 3000 4504 446 Capacity Analysis Module: Vol/Sat: 0.08 0.16 0.00 0.01 0.08 0.03 0.02 0.04 0.00 0.07 0.10 0.10 ~" Crit Volume: 259 14 24 168 Crit Moves: ***************** **** **** ***************** **** **************************** ****** **** ************ Traffix 7.9.0215 (c) 2008 Dowling Assoc. Licensed to TJKM, PLEASANTON, CA ~~~ ~~- ~~ Existing Conditions AM Tue Apr 8, 2008 11:46:23 Page 10-1 Arroyo Vista Housing Redevelopment Traffic Impact Study Existing Condition - AM -------------------------------------------------------------------------------- Level Of Service Computation Report CCTALOS Method (Base Volume Alternative) *********,r********************************************************************** Intersection #9 Hacienda Drive/Westbound I-580 off-ramp ******************************************************************************** Cycle (sec): 55 Critical Vol./Cap.(X): 0.339 Loss Time (sec): 6 (Y+R=4.0 sec) Average Delay (sec/veh) xxxxxx Optimal Cycle: 22 Level Of Service: A ******************************************************************************** Approach: North Bound South Bound East Bound West Bound Movement : L - T - R L - T - R L - T - R L - T - R ------------I---------------I---------------~~---------------~~---------------~ Control: Protected Protected Split Phase Split Phase Rights: WideBypass Ignore Include Include Min. Green: 0 0 0 0 0 0 0 0 0 0 0 0 Lanes : 0 0 3 0 0 0 0 3 0 0 0 0 0 0 0 2 0 0 0 2 Volume Module: Base Vol: 0 804 0 0 395 0 0 0 0 531 0 300 Growth Adj: 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 Initial Bse: 0 804 0 0 395 0 0 0 0 531 0 300 User Adj: 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 PHF Adj: 0.96 0.96 0.96 0.96 0.96 0.96 0.96 0.96 0.96 0.96 0.96 0.96 PHF Volume: 0 838 0 0 411 0 0 0 0 553 0 313 Reduct Vol: 0 0 0 0 0 0 0 0 0 0 0 0 Reduced Vol: 0 838 0 0 411 0 0 0 0 553 0 313 RTOR Reduct: 0 0 0 0 0 0 0 0 0 0 0 0 RTOR Vol: 0 838 0 0 411 0 0 0 0 553 0 313 PCE Adj: 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 MLF Adj: 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 FinalVolume: 0 838 0 0 411 0 0 0 0 553 0 313 Saturation Flow Module: Sat/Lane: 1720 1720 1720 1720 1720 1720 1720 1720 1720 1720 1720 1720 Adjustment: 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 0.91 1.00 0.91 Lanes: 0.00 3.00 0.00 0.00 3.00 0.00 0.00 0.00 0.00 2.00 0.00 2.00 Final Sat.: 0 5160 0 0 5160 0 0 0 0 3127 0 3127 ------------~---------------I---------------II---------------~I---------------~ Capacity Analysis Module: Vol/Sat: 0.00 0.16 0.00 0.00 0.08 0.00 0.00 0.00 0.00 0.18 0.00 0.10 Crit Volume: 279 0 0 277 Crit Moves: **** **** **** ******************************************************************************** Traffix 7.9.0215 (c) 2008 Dowling Assoc. Licensed to TJKM, PLEASANTON, CA Existing Conditions AM Tue Apr 8, 2008 11:46:24 Page 11-1 Arroyo Vista Housing Redevelopment Traffic Impact Study Existing Condition - AM -------------------------------------------------------------------------------- Level Of Service Computation Report CCTALOS Method (Base Volume Alternative) ******************************************************************************** Intersection #10 Hacienda Drive/Eastbound I-580 off-ramp ******************************************************************************** Cycle (sec): 55 Critical Vol./Cap.(X): 0.529 Loss Time (sec): 6 (Y+R=4.0 sec) Average Delay (sec/veh) xxxxxx Optimal Cycle: 31 Level Of Service: A ******************************************************************************** Approach: North Bound South Bound East Bound West Bound Movement : L - T - R L - T - R L - T - R L - T - R ------------~---------------~~---------------~I---------------~~---------------~ Control: Protected Protected Split Phase Split Phase Rights: Ignore WideBypass Include Include Min. Green: 0 0 0 0 0 0 0 0 0 0 0 0 Lanes : 0 0 3 0 0 0 0 3 0 0 2 0 0 0 2 0 0 0 0 0 ------------~---------------II---------------~~---------------~I---------------I Volume Module: Base Vol: 0 450 0 0 737 0 694 0 1092 0 0 0 Growth Adj: 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 Initial Bse: 0 450 0 0 737 0 694 0 1092 0 0 0 User Adj: 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 PHF Adj: 0.93 0.93 0.93 0.93 0.93 0.93 0.93 0.93 0.93 0.93 0.93 0.93 PHF Volume: 0 484 0 0 792 0 746 0 1174 0 0 0 Reduct Vol: 0 0 0 0 0 0 0 0 0 0 0 0 Reduced Vol: 0 484 0 0 792 0 746 0 1174 0 0 0 RTOR Reduct: 0 0 0 0 0 0 0 0 0 0 0 0 RTOR Vol: 0 484 0 0 792 0 746 0 1174 0 0 0 PCE Adj: 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 MLF Adj: 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 FinalVOlume: 0 484 0 0 792 0 746 0 1174 0 0 0 Saturation Flow Module: Sat/Lane: 1720 1720 1720 1720 1720 1720 1720 1720 1720 1720 1720 1720 Adjustment: 1.00 1.00 1.00 1.00 1.00 1.00. 0.91 1.00 0.91 1.00 1.00 1.00 Lanes: 0.00 3.00 0.00 0.00 3.00 0.00 2.00 0.00 2.00 0.00 0.00 0.00 Final Sat.: 0 5160 0 0 5160 0 3127 0 3127 0 0 0 ------------~---------------~~---------------~~---------------II---------------~ Capacity Analysis Module: Vol/Sat: 0.00 0.09 0.00 0.00 0.15 0.00 0.24 0.00 0.38 0.00 0.00 0.00 Crit Volume: 0 264 587 0 Crit Moves: **** **** **** ******************************************************************************** Traffix 7.9.0215 (c) 2008 Dowling Assoc. Licensed to TJKM, PLEASANTON, CA e®r ~M.. ~y_ ,;. ~~ a~ ~~1 Existing Conditions AM Tue Apr 8, 2008 11:46:24 Page 12-1 -------------------------------------------------------------------------------- Arroyo Vista Housing Redevelopment Traffic Impact Study Existing Condition - AM -------------------------------------------------------------------------------- Level Of Service Computation Report 2000 HCM Unsignalized Method (Base Volume Alternative) ******************************************************************************** Intersection #11 Dougherty Road/Ventura Drive ******************************************************************************** Average Delay (sec/veh): 0.2 Worst Case Level Of Service: E[ 42.5] ******************************************************************************** Approach: North Bound South Bound East Bound West Bound Movement : L - T - R L - T - R L - T - R L - T - R ------------~---------------~~---------------I~---------------~~---------------~ Control: Uncontrolled Uncontrolled Stop Sign Stop Sign Rights: Include Include Include Include Lanes: 1 0 2 0 0 0 0 1 1 0 0 0 1! 0 0 0 0 0 0 0 ------------~---------------~~---------------~~---------------~I---------------I Volume Module: Base Vol: 0 806 0 .0 1670 2 8 0 1 0 0 0 Growth Adj: 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 Initial Bse: 0 806 0 0 1670 2 8 0 1 0 0 0 User Adj: 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 PHF Adj: 0.92 0.92 0.92 0.92 0.92 0.92 0.92 0.92. 0.92 0.92 0.92 0.92 PHF Volume: 0 876 0 0 1815 2 9 0 1 0 0 0 Reduct Vol: 0 0 0 0 0 0 0 0 0 0 0 0 FinalVolume: 0 876 0 0 1815 2 9 0 1 0 0 0 ------------~---------------~~---------------~~---------------~~---------------I Critical Gap Module: Critical Gp:xxxxx xxxx xxxxx xxxxx xxxx xxxxx 6.8 6.5 6.9 xxxxx xxxx xxxxx Fo1lowUpTim:xxxxx xxxx xxxxx xxxxx xxxx xxxxx 3.5 4.0 3.3 xxxxx xxxx xxxxx ------------~---------------~I---------------~~---------------~---------------~ Capacity Module: Cnflict Vol: xxxx xxxx xxxxx xxxx xxxx xxxxx 2254 2692 909 xxxx xxxx xxxxx Potent Cap.: xxxx xxxx xxxxx xxxx xxxx xxxxx 36 22 282 xxxx xxxx xxxxx Move Cap.: xxxx xxxx xxxxx xxxx xxxx xxxxx 36 22 282 xxxx xxxx xxxxx Total Cap: xxxx xxxx xxxxx xxxx xxxx xxxxx 98 96 xxxxx 164 95 xxxxx Volume/Cap: xxxx xxxx xxxx xxxx xxxx xxxx 0.09 0.00 0.00 xxxx xxxx xxxx ------------~---------------I---------------~~---------------I~---------------I Level Of Service Module: 2Way95thQ: xxxx xxxx xxxxx xxxx xxxx xxxxx xxxx xxxx xxxxx xxxx xxxx xxxxx Control Del:xxxxx xxxx xxxxx xxxxx xxxx xxxxx xxxxx xxxx xxxxx xxxxx xxxx xxxxx LOS by Move: * * Movement: LT - LTR - RT LT - LTR - RT LT - LTR - RT LT - LTR - RT Shared Cap.: xxxx xxxx xxxxx xxxx xxxx xxxxx xxxx 106 xxxxx xxxx xxxx xxxxx SharedQueue:xxxxx xxxx xxxxx xxxxx xxxx xxxxx xxxxx 0.3 xxxxx xxxxx xxxx xxxxx Shrd ConDel:xxxxx xxxx xxxxx xxxxx xxxx xxxxx xxxxx 42.5 xxxxx xxxxx xxxx xxxxx Shared LOS: * * * * * * * E ApproachDel: xxxxxx xxxxxx 42.5 xxxxxx ApproachLOS: * * E ******************************************************************************** Note: Queue reported is the number of cars per lane. ******************************************************************************** Traffix 7.9.0215 (c) 2008 Dowling Assoc. Licensed to TJKM, PLEASANTON, CA ~ ~ ~ ~' ~~~ ~ (~~ Existing Conditions AM Tue Apr 8, 2008 11:46:24 Page 13-1 Arroyo Vista Housing Redevelopment Traffic Impact Study Existing Condition - AM ----------------------------------- Level Of Service Computation Report 2000 HCM Unsignalized Method (Base Volume Alternative) ******************************************************************************** Intersection #12 Dougherty Road/N. Mariposa Drive ******************************************************************************** Average Delay (sec/veh): 0.1 Worst Case Level Of Service: D[ 27.7] ******************************************************************************** Approach: North Bound South Bound East Bound West Bound Movement : L - T - R L - T - R L - T - R L - T - R ------------~---------------~~---------------~~---------------~I---------------) Control: Uncontrolled Uncontrolled Stop Sign Stop Sign Rights: Include Include Include Include Lanes: 1 0 2 0 0 0 0 1 1 0 0 0 1! 0 0 0 0 0 0 0 Volume Module: Base Vol: 3 803 0 0 1666 5 3 0 3 0 0 0 Growth Adj: 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 Initial Bse: 3 803 0 0 1666 5 3 0 3 0 0 0 User Adj: 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 PHF Adj: 0.98 0.98 0.98 0.98 0.98 0.98 0.98 0.98 0.98 0.98 0.98 0.98 PHF Volume: 3 819 0 0 1700 5 3 0 3 0 0 0 Reduct Vol: 0 0 0 0 0 0 0 0 0 0 0 0 FinalVolume: 3 819 0 0 1700 5 3 0 3 0 0 0 ------------~---------------~~---------------I~---------------~~---------------~ Critical Gap Module: Critical Gp: 4.1 xxxx xxxxx xxxxx xxxx xxxxx 6.8 6.5 6.9 xxxxx xxxx xxxxx FollowUpTim: 2.2 xxxx xxxxx xxxxx xxxx xxxxx 3.5 4.0 3.3 xxxxx xxxx xxxxx ------------I---------------~~---------------~~---------------~---------------) Capacity Module: Cnflict Vol: 1705 xxxx xxxxx xxxx xxxx xxxxx 2118 2528 853 xxxx xxxx xxxxx Potent Cap.: 378 xxxx xxxxx xxxx xxxx xxxxx 44 28 307 xxxx xxxx xxxxx Move Cap.: 378 xxxx xxxxx xxxx xxxx xxxxx 44 28 307 xxxx xxxx xxxxx Total Cap: xxxx xxxx xxxxx xxxx xxxx xxxxx 113 108 xxxxx 178 106 xxxxx Volume/Cap: 0.01 xxxx xxxx xxxx xxxx xxxx 0.03 0.00 0.01 xxxx xxxx xxxx Level Of Service Module: 2Way95thQ: 0.0 xxxx xxxxx xxxx xxxx xxxxx xxxx xxxx xxxxx xxxx xxxx xxxxx Control Del: 14.6 xxxx xxxxx xxxxx xxxx xxxxx xxxxx xxxx xxxxx xxxxx xxxx xxxxx LOS by MOVe: B * * * * * * * * * * * Movement: LT - LTR - RT LT - LTR - RT LT - LTR - RT LT - LTR - RT Shared Cap.: xxxx xxxx xxxxx xxxx xxxx xxxxx xxxx 165 xxxxx xxxx xxxx xxxxx SharedQueue:xxxxx xxxx xxxxx xxxxx xxxx xxxxx xxxxx 0.1 xxxxx xxxxx xxxx xxxxx Shrd ConDel:xxxxx xxxx xxxxx xxxxx xxxx xxxxx xxxxx 27.7 xxxxx xxxxx xxxx xxxxx Shared LOS: * * * * * * * D ApproachDel: xxxxxx xxxxxx 27.7 xxxxxx ApproachLOS: * * D ******************************************************************************** Note: Queue reported is the number of cars per lane. ******************************************************************************** Traffix 7.9.0215 (c) 2008 Dowling Assoc. Licensed to TJKM, PLEASANTON, CA ®r wa ~a~ ~-~ ~ ~ Existing Conditions AM Tue Apr 8, 2008 11:46:24 Page 14-1 Arroyo Vista Housing Redevelopment Traffic Impact Study Existing Condition - AM -------------------------------------------------------------------------------- Level Of Service Computation Report 2000 HCM Unsignalized Method (Base Volume Alternative) ******************************************************************************** Intersection #13 Dougherty Road/S. Mariposa Drive ******************************************************************************** Average Delay (sec/veh): 1.2 Worst Case Level Of Service: F[ 62.8) ******************************************************************************** Approach: North Bound South Bound East Bound West Bound Movement : L - T - R L - T - R L - T - R L - T - R ------------~---------------~~---------------~~---------------~I---------------~ Control: Uncontrolled Uncontrolled Stop Sign Stop Sign Rights: Include Include Include Include Lanes : 1 0 2 0 0 0 0 1 1 0 0 0 1! 0 0 0 0 0 0 0 ------------~---------------~~---------------II---------------~~---------------~ Volume Module: Base Vol: 18 778 0 0 1658 11 28 0 16 0 0 0 Growth Adj: 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 Initial Bse: 18 778 0 0 1658 11 28 0 16 0 0 0 User Adj: 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 PHF Adj: 0.86 0.86 0.86 0.66 0.86 0.86 0.86 0.86 0.86 0.86 0.86 0.86 PHF Volume: 21 905 0 0 1928 13 33 0 19 0 0 0 Reduct Vol: 0 0 0 0 0 0 0 0 0 0 0 0 FinalVOlume: 21 905 0 0 1928 13 33 0 19 0 0 0 ------------~---------------II---------------I---------------~~---------------~ Critical Gap Module: Critical Gp: 4.1 xxxx xxxxx xxxxx xxxx xxxxx 6.8 6.5 6.9 xxxxx xxxx xxxxx Fo1lowUpTim: 2.2 xxxx xxxxx xxxxx xxxx xxxxx 3.5 4.0 3.3 xxxxx xxxx xxxxx ---------------------------~I---------------~~---------------~~---------------I Capacity Module: Cnflict Vol: 1941 xxxx xxxxx xxxx xxxx xxxxx 2428 2881 970 xxxx xxxx xxxxx Potent Cap.: 306 xxxx xxxxx xxxx xxxx xxxxx 27 17 256 xxxx xxxx xxxxx Move Cap.: 306 xxxx xxxxx xxxx xxxx xxxxx 26 15 256 xxxx xxxx xxxxx Total Cap: xxxx xxxx xxxxx xxxx xxxx xxxxx 84 82 xxxxx 131 70 xxxxx Volume/Cap: 0.07 xxxx xxxx xxxx xxxx xxxx 0.39 0.00 0.07 xxxx xxxx xxxx ------------I---------------~I---------------~~---------------~~---------------I Level Of Service Module: 2Way95thQ: 0.2 xxxx xxxxx xxxx xxxx xxxxx xxxx xxxx xxxxx xxxx xxxx xxxxx Control Del: 17.6 xxxx xxxxx xxxxx xxxx xxxxx xxxxx xxxx xxxxx xxxxx xxxx xxxxx LOS by Move:- C * Movement: LT - LTR - RT LT - LTR - RT LT - LTR - RT LT - LTR - RT Shared Cap.: xxxx xxxx xxxxx xxxx xxxx xxxxx xxxx 111 xxxxx xxxx xxxx xxxxx SharedQueue:xxxxx xxxx xxxxx xxxxx xxxx xxxxx xxxxx 2.0 xxxxx xxxxx xxxx xxxxx Shrd ConDel:xxxxx xxxx xxxxx xxxxx xxxx xxxxx xxxxx 62.8 xxxxx xxxxx xxxx xxxxx Shared LOS : * * * * * * * F ApproachDel: xxxxxx xxxxxx 62.8 xxxxxx ApproachLOS: * * F ******************************************************************************** Note: Queue reported is the number of cars per lane. ******************************************************************************** Traffix 7.9.0215 (c) 2008 Dowling Assoc. Licensed to TJKM, PLEASANTON, CA ~~ ~ `~~~ Existing Conditions AM Tue Apr 8, 2008 11:46:24 Page 15-1 Arroyo Vista Housing Redevelopment Traffic Impact Study Existing Condition - AM -------------------------------------------------------------------------------- Level Of Service Computation Report 2000 HCM Unsignalized Method .(Base Volume Alternative) ******************************************************************************** Intersection #14 Dougherty Road/Monterey Drive ******************************************************************************** Average Delay (sec/veh): 0.1 Worst Case Level Of Service: C[ 18.4) ******************************************************************************** Approach: North Bound South Bound East Bound West Bound Movement : L - T - R L - T - R L - T - R L - T - R ------------~---------------~I---------------~I---------------~~----~-----------~ Control: Uncontrolled Uncontrolled Stop Sign Stop Sign Rights: Include Include Include Include Lanes: 1 0 2 0 0 0 0 1 1 0 0 0 0 0 1 0 0 0 0 0 Volume Module: Base Vol: 9 796 0 0 1674 0 0 0 8 0 0 0 Growth Adj: 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 Initial Bse: 9 796 0 0 1674 0 0 0 8 0 0 0 User Adj: 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 PHF Adj: 0.91 0.91 0.91 0.91 0.91 0.91 0.91 0.91 0.91 0.91 0.91 0.91 PHF Volume: 10 875 0 0 1840 0 0 0 9 0 0 0 Reduct Vol: 0 0 0 0 0 0 0 0 0 0 0 0 FinalVolume: 10 875 0 0 1840 0 0 0 9 0 0 0 ------------~---------------~~---------------~~---------------I---------------~ Critical Gap Module: Critical Gp: 4.1 xxxx xxxxx xxxxx xxxx xxxxx xxxxx xxxx 6.9 xxxxx xxxx xxxxx Fo1lowUpTim: 2.2 xxxx xxxxx xxxxx xxxx xxxxx xxxxx xxxx 3.3 xxxxx xxxx xxxxx Capacity Module: Cnflict Vol: 1840 xxxx xxxxx xxxx xxxx xxxxx xxxx xxxx 920 xxxx xxxx xxxxx Potent Cap.: 335 xxxx xxxxx xxxx xxxx xxxxx xxxx xxxx 277 xxxx xxxx xxxxx Move Cap.: 335 xxxx xxxxx xxxx xxxx xxxxx xxxx xxxx 277 xxxx xxxx xxxxx Total Cap: xxxx xxxx xxxxx xxxx xxxx xxxxx 95 92 xxxxx 152 87 xxxxx Volume/Cap: 0.03 xxxx xxxx xxxx xxxx xxxx xxxx xxxx 0.03 xxxx xxxx xxxx Level Of Service Module: 2Way95thQ: 0.1 xxxx xxxxx xxxx xxxx xxxxx xxxx xxxx 0.1 xxxx xxxx xxxxx Control Del: 16.1 xxxx xxxxx xxxxx xxxx xxxxx xxxxx xxxx 18.4 xxxxx xxxx xxxxx LOS by Move: C * * * * * * * C Movement: LT - LTR - RT LT - LTR - RT LT - LTR - RT LT - LTR - RT Shared Cap.: xxxx xxxx xxxxx xxxx xxxx xxxxx xxxx xxxx xxxxx xxxx xxxx xxxxx SharedQueue:xxxxx xxxx xxxxx xxxxx xxxx xxxxx xxxxx xxxx xxxxx xxxxx xxxx xxxxx Shrd ConDel:xxxxx xxxx xxxxx xxxxx xxxx xxxxx xxxxx xxxx xxxxx xxxxx xxxx xxxxx Shared LOS: * * * * * * * * * * * * ApproachDel: xxxxxx xxxxxx 18.4 xxxxxx ApproachLOS: * * C ******************************************************************************** Note: Queue reported is the number of cars per lane. ******************************************************************************** Traffix 7.9.0215 (c) 2008 Dowling Assoc. Licensed to TJKM, PLEASANTON, CA r.~p2 "~~ ~~'~` ~' Existing Conditions PM Tue Apr 8, 2008 20:01:55 Page 1-1 --------------------------------------------------------------------------------- Arroyo Vista Housing Redevelopment Traffic Impact Study Existing Condition - PM -------------------------------------------------------------------------------- Scenario Report Scenario: Existing Conditions PM Command: Volume: Geometry: Impact Fee: Trip Generation: Trip Distribution: Paths: Routes• Configuration: Existing PM Existing PM Existing Default Impact Fee Default Trip Generation Default Trip Distribution Default Path Default Route Default Configuration Traffix 7.9.0215 (c) 2008 Dowling Assoc. Licensed to TJKM, PLEASANTON, CA ' ~ ;, ~a R Existing Conditions PM Tue Apr 8, 2008 20:01:56 Page 2-1 Arroyo Vista Housing Redevelopment Traffic Impact Study Existing Condition - PM -------------------------------------------------------------------------------- Level Of Service Computation Report CCTALOS Method (Base Volume Alternative) ******************************************************************************** Intersection #1 Dougherty Road/Amador Valley Boulevard ******************************************************************************** Cycle (sec): 60 Critical Vol./Cap.(X): 0.741 Loss Time (sec): 9 (Y+R=4.0 sec) Average Delay (sec/veh): xxxxxx Optimal Cycle: 72 Level Of Service: C ***,r*******,t*,r*,r*****,t***,t********tr*,t,ttr****,r***************+**,t*w**,r****,t****,t*,t Approach: North Bound South Bound East Bound West Bound Movement : L - T - R L - T - R L - T - R L - T - R ------------~---------------~~---------------~~---------------11---------------~ Control: Protected Protected Split Phase Split Phase Rights: Include Include Include Include Min. Green: 0 0 0 0 0 0 0 0 0 0 0 0 Lanes : 1 0 2 0 0 0 0 1 1 0 1 0 0 0 1 0 0 0 0 0 Volume Module: Base Vol: 459 1258 0 0 691 126 330 0 294 0 0 0 Growth Adj: 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 Initial Bse: 459 1258 0 0 691 126 330 0 294 0 0 0 User Adj: 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 PHF Adj: 0.94 0.94 0.94 0.94 0.94 0.94 0.94 0.94 0.94 0.94 0.94 0.94 PHF Volume: 488 1338 0 0 735 134 351 0 313 0 0 0 Reduct Vol: 0 0 0 0 0 0 0 0 0 0 0 0 Reduced Vol: 488 1338 0 0 735 134 351 0 313 0 0 0 RTOR Reduct: 0 0 0 0 0 0 0 0 313 0 0 0 RTOR Vol: 488 1338 0 0 735 134 351 0 0 0 0 0 PCE Adj: 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 MLF Adj: 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 FinalVolume: 488 1338 0 0 735 134 351 0 0 0 0 0 Saturation Flow Module: Sat/Lane: 1720 1720 1720 1720 1720 1720 1720 1720 1720 1720 1720 1720 Adjustment: 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 Lanes: 1..002.00 0.00 0.00 1.69 0.31 1.OA 0.00 1.00 0.00 0.00 0.00 Final Sat.: 1720 3440 0 0 2909 531 1720 0 1720 0 0 0 Capacity Analysis Module: Vol/Sat: 0.28 0.39 0.00 0.00 0.25 0.25 0.20 0.00 0.00 0.00 0.00 0.00 Crit Volume: 488 435 351 0 Crit Moves: **** **** **** ******************************************************************************** Traffix 7.9.0215 (c) 2008 Dowling Assoc. Licensed to TJKM, PLEASANTON, CA „,,,< Existing Conditions PM Tue Apr B, 2008 20:01:56 Page 3-1 Arroyo Vista Housing Redevelopment Traffic Impact Study Existing Condition - PM Level Of Service Computation Report CCTALOS Method (Base Volume Alternative) ******************************************************************************** Intersection #2 Dougherty Road/Scarlett Drive ******************************************************************************** Cycle (sec): 80 Critical Vol./Cap.(X): 0.551 Loss Time (sec): 9 (Y+R=4.0 sec) Average Delay (sec/veh): xxxxxx Optimal Cycle: 41 Level Of Service: A ******************************************************************************** Approach: North Bound South Bound East Bound West Bound Movement : L - T - R L - T - R L - T - R L - T - R ------------~---------------~I---------------I---------------~~---------------I Control: Protected Protected Permitted Permitted Rights: Include Include Include Include Min. Green: 0 0 0 0 0 0 0 0 0 0 0 0 Lanes : 1 0 2 0 1 1 0 2 0 1 0 0 1! 0 0 1 0 0 1 0 Volume Module: Base Vol: 61 1720 18 2 979 19 6 1 34 17 1 16 Growth Adj: 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 Initial Bse: 61 1720 18 2 979 19 6 1 34 17 1 16 User Adj: 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 PHF Adj: 0.97 0.97 0.97 0.97 0.97 0.97 0.97 0.97 0.97 0.97 0.97 0.97 PHF Volume: 63 1773 19 2 1009 20 6 1 35 18 1 16 Reduct Vol: 0 0 0 0 0 0 0 0 0 0 0 0 Reduced Vol: 63 1773 19 2 1009 20 6 1 35 18 1 16 RTOR Reduct: 0 0 18 0 0 6 0 0 0 0 0 0 RTOR Vol: 63 1773 1 2 1009 13 6 1 35 18 1 16 PCE Adj: 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 MLF Adj: 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 FinalVolume: 63 1773 1 2 1009 13 6 1 35 18 1 16 --------'----~---------------~~---------------~~---------------~~---------------I Saturation Flow Module: Sat/Lane: 1720 1720 1720 1720 1720 1720 1720 1720 1720 1720 1720 1720 Adjustment: 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 Lanes: 1.00 2.00 1.00 1.00 2.00 1.00 0.15 0.02 0.83 1.00 0.06 0.94 Final Sat.: .1720 3440 1720 1720 3440 1720 252 42 1426 1720 101 1619 ------------~=~--------------~~---------------I~---------------~---------------~ Capacity Analysis Module: Vol/Sat: 0.04 0.52 0.00 0.00 0.29 0.01 0.02 0.02 0.02 0.01 0.01 0.01 Crit Volume: 887 2 42 18 Crit Moves: **** **** **** **** Traffix 7.9.0215 (c) 2008 Dowling Assoc. Licensed to TJKM, PLEASANTON, CA r ~ ~ ~~, ~ D Existing Conditions PM Tue Apr 8, 2008 20:01:56 Page 4-1 Arroyo Vista Housing Redevelopment Traffic Impact Study Existing Condition - PM -------------------------------------------------------------------------------- Level Of Service Computation Report CCTALOS Method (Base Volume Alternative) ******************************************************************************** Intersection #3 Dougherty Road/Sierra Lane *****************************************************,r************************** Cycle (sec): 60 Critical Vol./Cap.(X): 0.619 Loss Time (sec): 12 (Y+R=4.0 sec) Average Delay (sec/veh) xxxxxx Optimal Cycle: 60 Level Of Service: B y ******************************************************************************** Approach: North Bound South Bound East Bound West Bound Movement : L - T - R L - T - R L - T - R L - T - R Control: Protected Protected Protected Protected Rights: Include Include Include Include Min. Green: 0 0 0 0 0 0 0 0 0 0 0 0 Lanes : 1 0 2 0 1 1 0 2 0 1 1 0 1 0 1 1 0 0 1 0 ------------~---------------~~---------------II---------------~I---------------~ Volume Module: Base Vol: 48 1703 14 6 968 56 87 4 106 19 6 9 Growth Adj: 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 Initial Bse: 48 1703 14 6 968 56 87 4 106 19 6 9 User Adj: 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 PHF Adj: 0.94 0.94 0.94 0.94 0.94 0.94 0.94 0.94 0.94 0.94 0.94 0.94 PHF Volume: 51 1812 15 6 1030 60 93 _ 4 113 20 6 10 Reduct Vol: 0 0 0 0 0 0 0 0 0 0 0 0 Reduced Vol: 51 1812 15 6 1030 60 93 4 113 20 6 10 RTOR Reduct: 0 0 15 0 0 60 0 0 51 0 0 0 RTOR Vol: 51 1812 0 6 1030 0 93 4 62 20 6 10 PCE Adj: 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 MLF Adj: 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 FinalVOlume: 51 1812 0 6 1030 0 93 4 62 20 6 10 ------------~---------------~~---------------~~---------------II---------------~ Saturation Flow Module: Sat/Lane: 1650 1650 1650 1650 1650 1650 1650 1650 1650 1650 1650 1650 Adjustment: 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00.. 1.00 1.00 1.00 Lanes: 1.00 2.00 1.00 1.00 2.00 1.00 1.00 1.00 1.00 1.00 0.40 0.60 Final Sat.: 1650 3300 1650 1650 3300. 1650 1650 1650 1650 1650 660 990 ------------~---------------II---------------II---------------II---------------~ Capacity Analysis Module: Vol/Sat: 0.03 0.55 0.00 0.00 0.31 0.00 0.06 0.00 0.04 0.01 0.01 0.01 Crit Volume: 906 6 93 16 Crit Moves• **** **** **** **** ******************************************************************************** Traffix 7.9.0215 (c) 2008 Dowling Assoc. Licensed to TJKM, PLEA5ANTON, CA ~~3 ~~ ~~~ Existing Conditions PM Tue Apr 8, 2008 20:01:56 Page 5-1 Arroyo Vista Housing Redevelopment Traffic Impact Study Existing Condition - PM -------------------------------------------------------------------------------- Level Of Service Computation Report CCTALOS Method (Base Volume Alternative) ******************************************************************************** Intersection #4 Dougherty Road/Dublin Boulevard ******************************************************************************** Cycle (sec): 150 Critical Vol./Cap.(X): 0.977 Loss Time (sec): 12 (Y+R=4.0 sec) Average Delay (sec/veh): xxxxxx Optimal Cycle: 180 Level Of Service: E Approach: North Bound South Bound East Bound West Bound Movement : L - T - R L - T - R L - T - R L - T - R Control: Protected Protected Protected Protected Rights: Include Include Include Include Min. Green: 0 0 0 0 0 0 0 0 0 0 0 0 Lanes : 2 0 1 1 0 2 0 2 1 0 1 0 2 0 1 2 0 2 0 1 ------------~---------------~I---------------~~---------------~I---------------~ Volume Module: Base Vol: 569 1166 390 393 663 71 87 853 528 302 646 394 Growth Adj: 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 Initial Bse: 569 1166 390 393 663 71 87 853 528 302 646 394 User Adj: 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 PHF Adj: 0.94 0.94 0.94 0.94 0.94 0.94 0.94 0.94 0.94 0.94 0.94 0.94 PHF Volume: 605 1240 415 418 705 76 93 907 562 321 687 419 Reduct Vol: 0 0 0 0 0 0 0 0 0 0 0 0 Reduced Vol: 605 1240 415 418 705 76 93 907 562 321 687 419 RTOR Reduct: 0 0 0 0 0 0 0 0 333 0 0 230 RTOR Vol: 605 1240 415 418 705 76 93 907 229 321 687 189 PCE Adj: 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 MLF Adj: 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 FinalVolume: 605 1240 415 418 705 76 93 907 229 321 687 189 Saturation Flow Module: Sat/Lane: 1650 1650 1650 1650 1650 1650 1650 1650 1650 1650 1650 1650 Adjustment: 0.91 1.10 1.10 0.91 1.00 1.00 1.00 1.00 1.00 0.91 1.00 1.00 Lanes: 2.00 1.50 0.50 2.00 2.71 0.29 1.00 2.00 1.00 2.00 2.00 1.00 Final Sat.: 3000 2720 910 3000 4471 479 1650 3300 1650 3000 3300 1650 ------------I---------------~I---------------~---------------I~---------------~ Capacity Analysis Module: Vol/Sat: 0.20 0.46 0.46 0.14 0.16 0.16 0.06 0.27 0.14 0.11 0.21 0.11 Crit Volume: 828 209 454 161 Crit Moves: **** **** **** **** ******************************************************************************** Traffix 7.9.0215 (c) 2008 Dowling Assoc. Licensed to TJKM, PLEASANTON, CA ~~ O~ ~~, Existing Conditions PM Tue Apr 8, 2008 20:01:56 Page 6-1 Arroyo Vista Housing .Redevelopment Traffic Impact Study Existing Condition - PM -------------------------------------------------------------------------------- Level Of Service Computation Report CCTALOS Method (Base Volume Alternative) ******************************************************************************** Intersection #5 Dougherty Road/Westbound I-580 off-ramp ******************************************************************************** Cycle (sec): 60 Critical Vol./Cap.(X): 0.555 Loss Time (sec): 6 (Y+R=4.0 sec) Average Delay (sec/veh): xxxxxx Optimal Cycle: 32 Level Of Service: A Approach: North Bound South Bound East Bound West Bound Movement : L - T - R L - T - R L.- T - R L - T - R ------------~---------------~I---------------~~---------------~I---------------~ Control: Protected Protected Split Phase Split Phase Rights: Include Ignore Include Include Min. Green: 0 0 0 0 0 0 0 0 0 0 0 0 Lanes : 0 0 3 0 0 0 0 2 0 0 0 0 0 0 0 2 0 0 0 2 ------------~---------------~~------------------------------I~---------------I Volume Module: Base Vol: 0 1552 0 0 1049 0 0 0 0 251 0 573 Growth Adj: 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 Initial Bse: 0 1552 0 0 1049 0 0 0 0 251 0 573 User Adj: 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 PHF Adj: 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 PHF Volume: 0 1764 0 0 1192 0 0 0 0 285 0 651 Reduct Vol: 0 0 0 0 0 0 0 0 0 0 0 0 Reduced Vol: 0 1764 0 0 1192 0 0 0 0 285 0 651 RTOR Reduct: 0 0 0 0 0 0 0 0 0 0 0 0 RTOR Vol: 0 1764 0 0 1192 0 0 0 0 285 0 651 PCE Adj: 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 MLF Adj: 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 FinalVolume: 0 1764 0 0 1192 0 0 0 0 285 0 651 ------------~---------------~I---------------~~---------------~~---------------~ Saturation Flow Module: Sat/Lane: 1720 1720 1720 1720 1720 1720 1720 1720 1720 1720 1720 1720 Adjustment: 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 0.91 1.00 0.91 Lanes: 0.00 3.00 0.00 0.00 2.fl0 0.00 0.00 0.00. 0.00 2.00 0.00 2.00 Final Sat.: 0 5160 0 0 3440 0 0 0 0 3127 0 3127 ------------~---------------I~---------------~~---------------~~---------------~ Capacity Analysis Module: Vol/Sat: 0.00 0.34 0.00 .0.00 0.35 0.00 0.00 0.00 0.00 0.09 0.00 0.21 Crit Volume: 0 596 0 326 Crit Moves: **** **** **** ******************************************************************************** Traffix 7.9.0215 (c) 2008 Dowling Assoc. Licensed to TJKM, PLEASANTON, CA ., s35 ~~ 80~ Existing Conditions PM Tue Apr 8, 2008 20:01:56 Page 7-1 Arroyo Vista Housing Redevelopment Traffic Impact Study Existing Condition - PM -------------------------------------------------------------------------------- Level Of Service Computation Report CCTALOS Method (Base Volume Alternative) ******************************************************************************** Intersection #6 Hopyard Road/Eastbound I-580 off-ramp ******************************************************************************** Cycle (sec): 60 Critical Vol./Cap.(X): 0.712 Loss Time (sec): 6 (Y+R=4.0 sec) Average Delay (sec/veh): xxxxxx Optimal Cycle: 50 Level Of Service: C ******************************************************************************** Approach: North Bound South Bound East Bound West Bound Movement : L - T - R L - T - R L - T - R L - T - R Control: Protected Protected Split Phase Split Phase Rights: Include Ignore Include Include Min. Green: 0 0 0 0 0 0 0 0 0 0 0 0 Lanes : 0 0 3 0 0 0 0 3 0 0 2 0 0 0 2 0 0 0 0 0 Volume Module: Base Vol: 0 1811 0 0 1049 0 832 0 995 0 0 0 Growth Adj: 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 Initial Bse: 0 1811 0 0 1049 0 832 0 995 0 0 0 User Adj: 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 PHF Adj: 0.94 0.94 0.94 0.94 0.94 0.94 0.94 0.94 0.94 0.94 0.94 0.94 PHF Volume: 0 1927 0 0 1116 0 885 0 1059 0 0 0 Reduct Vol: 0 0 0 0 0 0 0 0 0 0 0 0 Reduced Vol: 0 1927 0 0 1116 0 885 0 1059 0 0 0 RTOR Reduct: 0 0 0 0 0 0 0 0 0 0 0 0 RTOR Vol: 0 1927 0 0 1116 0 885 0 1059 0 0 0 PCE Adj: 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 MLF Adj: 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 FinalVolume: 0 1927 0 0 1116 0 885 0 1059 0 0 0 Saturation Flow Module: Sat/Lane: 1720 1720 1720 1720 1720 1720 1720 1720 1720 1720 1720 1720 Adjustment: 1.00 1.00 1.00 1.00 1.00 1.00 0.91 1.00 0.91 1.00 1.00 1.00 Lanes: 0.00 3.00 0.00 0.00 3.00 0.00 2.00 0.00 2.00 0.00 0.00 0.00 Final Sat.: 0 5160 0 0 5160 0 3127 0 3127 0 0 0 Capacity Analysis Module: Vol/Sat: 0.00 0.37 0.00 0.00 0.22. 0.00 0.28 0.00 0.34 0.00 0.00 0.00 Crit Volume: 642 0 529 0 Crit Moves: **** **** **** ******************************************************************************** Traffix 7.9.0215 (c) 2008 Dowling Assoc. Licensed to TJKM, PLEASANTON, CA J o~ ~ p1 ~a Existing Conditions PM Tue Apr 8, 2008 20:01:56 Page 8-1 Arroyo Vista Housing Redevelopment Traffic Impact Study Existing Condition - PM -------------------------------------------------------------------------------- Level Of Service Computation Report CCTALOS Method (Base Volume Alternative) ******************************************************************************** Intersection #7 Dublin Boulevard/Scarlett Drive ******************************************************************************** Cycle (sec): 100 Critical Vol./Cap.(X): 0.387 Loss Time (sec): 12 (Y+R=4.0 sec) Average Delay (sec/veh): xxxxxx Optimal Cycle: 37 Level Of Service: A ******************************************************************************** Approach: North Bound South Bound East Bound West Bound Movement : L - T - R L - T - R L - T - R L - T - R ------------~---------------~---------------I~---------------I~---------------~ Control: Protected Protected Protected Protected Rights: Include Include Include Include Min. Green: 0 0 0 0 0 0 0 0 0 0 0 0 Lanes: 1 0 0 0 1 1 0 0 1 0 1 0 3 0 1 1 0 3 0 0 Volume Module: Base Vol: 109 0 39 0 0 0 9 1528 13 20 1307 0 Growth Adj: 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 Initial Bse: 109 0 39 0 0 0 9 1528 13 20 1307 0 User Adj: 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 PHF Adj: 0.96 0.96 0.96 0.96 0.96 0.96 0.96 0.96 0.96 0.96 0.96 0.96 PHF Volume: 114 0 41 0 0 0 9 1592 14 21 1361 0 Reduct Vol: 0 0 0 0 0 0 0 0 0 0 0 0 Reduced Vol: 114 0 41 0 0 0 9 1592 14 21 1361 0 RTOR Reduct: 0 0 21 0 0 0 0 0 14 0 0 0 RTOR Vol: 114 0 20 0 0 0 9 1592 0 21 1361 0 PCE Adj: 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 MLF Adj: 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 FinalVolume: 114 0 20 0 0 0 9.1592 0 21 1361 0 Saturation Flow Module: Sat/Lane: 1720 1720 1720 1720 1720 1720 1720 1720 1720 1720 1720 1720 Adjustment: 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 Lanes: 1.00 0.00 1.00 1.00 1.00 0.00 1.00 3.00 1.00 1.00 3.00 0.00 Final Sat.: 1720 0 1720 1720 1720 0 1720 5160 1720 1720 5160 0 ------------~---------------~~---------------I~---------------~---------------I Capacity Analysis Module: Vol/Sat: 0.07 0.00 0.01 0.00 0.00 0.00 0.01 0.31 0.00 0.01 0.26 0.00 Crit Volume: 114 0 531 21 Crit Moves: **** **** **** ******************************************************************************** Traffix 7.9.0215 (c) 2008 Dowling Assoc. Licensed to TJKM, PLEASANTON, CA Existing Conditions PM Tue Apr 8, 2008 20:01:56 Page 9-1 Arroyo Vista Housing Redevelopment Traffic impact Study Existing Condition - PM -------------------------------------------------------------------------------- Level Of Service Computation Report CCTALOS Method (Base Volume Alternative) Intersection #8 Hacienda Drive/Dublin Boulevard ******************************************************************************** Cycle (sec): 90 Critical Vol./Cap.(X): 0.540 Loss Time (sec): 12 (Y+R=4.0 sec) Average Delay (sec/veh): xxxxxx Optimal Cycle: 50 Level Of Service: A ******************************************************************************** Approach: North Bound South Bound East Bound West Bound Movement : L - T - R L - T - R L - T - R L - T - R ------------I---------------~I---------------~I---------------~~---------------~ Control: Protected Protected Protected Protected Rights: Include Include Include Include Min. Green: 0 0 0 0 0 0 0 0 0 0 0 0 Lanes : 3 0 2 0 2 2 0 3 0 1 2 0 3 0 2 2 0 2 1 0 Volume Module: Base Vol: 505 648 589 51 440 83 239 1113 488 196 512 14 Growth Adj: 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 Initial Bse: 505 648 589 51 440 83 239 1113 488 196 512 14 User Adj: 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 PHF Adj: 0.92 0.92 0.92 0.92 0.92 0.92 0.92 0.92 0.92 0.92 0.92 0.92 PHF Volume: 549 704 640 55 478 90 260 1210 530 213 557 15 Reduct Vol: 0 0 0 0 0 0 0 0 0 0 0 0 Reduced Vol: 549 704 640 55 478 90 260 1210 530 213 557 15 RTOR Reduct: 0 0 117 0 0 90 0 0 210 0 0 0 RTOR Vol: 549 704 523 55 478 0 260 1210 320 213 557 15 PCE Adj: 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 MLF Adj: 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 FinalVOlume: 549 704 523 55 478 0 260 1210 320 213 557 15 ------------~---------------~~---------------~I---------------~~---------------~ Saturation .Flow Module: Sat/Lane: 1650 1650 1650 1650 1650 1650 1650 1650 1650 1650 1650 1650 Adjustment: 0.87 1.00 0.91 0.91 1.00 1.00 0.91 1.00 0.91 0.91 1.00 1.00 Lanes: 3.00 2.00 2.00 2.00 3.00 1.00 2.00 3.00 2.00 2.00 2.92 0.08 Final Sat.: 4307 3300 3000 3000 4950 1650 3000 4950 3000 3000 4818 132 Capacity Analysis Module: Vol/Sat: 0.13 0.21 0.17 0.02 0.10 0.00 0.09 0.24 0.11 0.07 0.12 0.12 Crit Volume: 183 159 403 107 Crit Moves: **** **** **** **** ******************************************************************************** Traffix 7.9.0215 (c) 2008 Dowling Assoc. Licensed to TJKM, PLEASANTON, CA ,3B o~ gO1 Existing Conditions PM Tue Apr 8, 2008 20:01:56 Page 10-1 ------------- ----- ---------------- Arroyo Vista ------------------------------ Housing Redevelopment ----- ----------- ` Traff ic Impact Study Existing Condition - PM Level Of Service Computation Report ************* ***** CCTALOS Method **************** (Base Volume Alternative) ****************************** ***** *********** Intersection #9 Ha cienda Drive/Wes tbound I-580 off-ramp ************* ***** **************** ****************************** ***** *********** ee~ Cycle (sec): 55 Critical Vol./Cap.(X): 0.444 Loss Time (se c): 6 (Y+R=4.0 sec) Average Delay (sec/veh): xxxxxx Optimal Cycle : 26 Level Of Service: A ************* ***** **************** ****************************** ***** *********** ww Approach: Nor th Bound South Bound East Bound We st Bound Movement : L - T - R L - T - R L - T - R L - T - R '~'' ------------~ Control: ----- Pr ----------I---- otected P -----------~---------------~~ rotected Split Phase ----- Spl ----------I it Phase Rights: Wi deBypass Ignore Include Include Min. Green: 0 0 0 0 0 0 0 0 0 0 0 0 ~- Lanes: 0 0 3 0 0 0 0 3 0 0 0 0 0 0 0 2 0 0 0 2 ------------~ ----- ----------~~---- -----------~~---------------~~ ----- ----------~ uw Volume Module : Base Vol: 0 1562 0 0 593 0 0 0 0 304 0 414 ~,_ Growth Adj: 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 Initial Bse: 0 1562 0 0 593 0 0 0 0 304 0 414 ~ User Adj: 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 PHF Adj: 0.98 0.98 0.98 0.98 0.98 0.98 0.98 0.98 0.98 0.98 0.98 0.98 PHF Volume: 0 1594 0 0 605 0 0 0 0 310 0 422 Reduct Vol: 0 0 0 0 0 0 0 0 0 0 0 0 Reduced Vol: 0 1594 0 0 605 0 0 0 0 310 0 422 RTOR Reduct: 0 0 0 0 0 0 0 0 0 0 0 0 RTOR Vol: 0 1594 0 0 605 0 0 0 0 310 0 422 PCE Adj: 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 MLF Adj: 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 FinalVolume: 0 1594 0 0 605 0 0 0 0 310 0 422 N,+, ------------~ Saturation Fl ----- ow Mo ----------~I---- dule: -----------~~---------------~~ ----- ----------~ Sat/Lane: 1720 1720 1720 1720 1720 1720 1720 1720 1720 1720 1720 1720 ~" Adjustment: 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 0.91 1.00 0.91 Lanes: 0.00 3.00 0.00 0.00 3.00 0.00 0.00 0.00 0.00 2.00 0.00 2.00 "' Final Sat.: 0 5160 0 0 5160 0 0 0 0 3127 0 3127 ------------~ ----- ----------~~---- -----------~~---------------~~ ----- ----------~ erg Capacity Anal ysis Module: Vol/Sat: 0.00 0.31 0.00 0.00 0.12 0.00 0.00 0.00 0.00 0.10 0.00 0.14 Crit Volume: 531 0 0 211 Crit Moves: **** **** **** ************* ***** **************** *********************************** *********** Traffix 7.9.0215 (c) 2008 Dowling Assoc. Licensed to TJKM, PLEASANTON, CA ~®i Existing Conditions PM Tue Apr 8, 2008 20:01:56 Page 11-1 Arroyo Vista Housing Redevelopment Traffic Impact Study Existing .Condition - PM -------------------------------------------------------------------------------- Level Of Service Computation Report CCTALOS Method (Base Volume Alternative) ******************************************************************************** Intersection #10 Hacienda Drive/Eastbound I-580 off-ramp ******************************************************************************** Cycle (sec): 55 Critical Vol./Cap.(X): 0.550 Loss Time (sec): 6 (Y+R=4.0 sec) Average Delay (sec/veh): xxxxxx Optimal Cycle: 32 Level Of Service: A ******************************************************************************** Approach: North Bound South Bound East Bound West Bound Movement : L - T - R L - T - R L - T - R L - T - R ------------~---------------~~---------------~~---------------II---------------~ Control: Protected Protected Split Phase Split Phase Rights: Ignore WideBypass Include Include Min. Green: 0 0 0 0 0 0 0 0 0 0 0 0 Lanes : 0 0 3 0 0 0 0 3 0 0 2 0 0 0 2 0 0 0 0 0 ------------~---------------I~---------------~~---------------~~---------------~ Volume Module: Base Vol: 0 1796 0 0 635 0 596 0 582 0 0 0 Growth Adj: 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 Initial Bse: 0 1796 0 0 635 0 596 0 582 0 0 0 User Adj: 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 PHF Adj: 0.98 0.98 0.98 0.98 0.98 0.98 0.98 0.98 0.98 0.98 0.98 0.98 PHF Volume: 0 1833 0 0 648 0 608 0 594 0 0 0 Reduct Vol: 0 0 0 0 0 0 0 0 0 0 0 0 Reduced Vol: 0 1833 0 0 648 0 608 0 594 0 0 0 RTOR Reduct: 0 0 0 0 0 0 0 0 0 0 0 0 RTOR Vol: 0 1833 0 0 648 0 608 0 594 0 0 0 PCE Adj: 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 MLF Adj: 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 FinalVolume: 0 1833 0 0 648 0 608 0 594 0 0 0 ------------I---------------II---------------~~---------------~~---------------I Saturation Flow Module: Sat/Lane: 1720 1720 1720 1720 1720 1720 1720 1720 1720 1720 1720 1720 Adjustment: 1.00 1.00 1.00 1.00 1.00 1.00 0.91 1.00 0.91 1.00 1.00 1.00 Lanes: 0.00 3.00 0.00 0.00 3.00 0.00 2.00 0.00 2.00 0.00 0.00 0.00 Final Sat.: 0 5160 0 0 5160 0 3127 0 3127 0 0 0 ------------~-------------=-~---------------II---------------~~---------------~ Capacity Analysis Module: Vol/Sat: 0.00 0.36 0.00 0.00 0.13 0.00 0.19 0.00 0.19 0.00 0.00 0.00 Crit Volume: 611 0 - 304 0 Crit Moves: **** **** **** ******************************************************************************** Traffix 7.9.0215 (c) 2008 Dowling Assoc. Licensed to TJKM, PLEASANTON, CA ~. ,~ ~ ~~ ~"~ Existing Conditions PM Tue Apr 8, 2008 20:01:56 Page 12-1 -------------------------------------------------------------------------------- Arroyo Vista Housing Redevelopment w Traffic Impact Study Existing Condition - PM -------------------------------------------------------------------------------- Level Of Service Computation Report ' 2000 HCM Unsignalized Method (Base Volume Alternative) ******************************************************************************** Intersection #il Dougherty Road/Ventura Drive ******************************************************************************** Average Delay (sec/veh): 0.0 Worst Case Level Of Service: C[ 21.6] ******************************************************************************** Approach: North Bound South Bound East Bound West Bound Movement : L - T - R L - T - R L - T - R L - T - R ---------~ ~"' ------------~---------------~~---------------I~---------------~~------ Control: Uncontrolled Uncontrolled Stop Sign Stop Sign Rights: Include Include Include Include Lanes : 1 0 2 0 0 0 0 1 1 0 0 0 1! 0 0 0 0 0 0 0 eR* Volume Module: " Base Vol: 1 1715 0 0 981 4 2 0 1 0 0 0 Growth Adj: 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 Initial Bse: 1 1715 0 0 981 4 2 0 1 0 0 0 User Adj: 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 PHF Adj: 0.93 0.93 0.93 0.93 0.93 0.93 0.93 0.93 0.93 0.93 0.93 0.93 PHF Volume: 1 1844 0 0 1055 4 2 0 1 0 0 0 Reduct Vol: 0 0 0 0 0 0 0 0 0 0 0 0 FinalVOlume: 1 1844 0 0 1055 4 2 0 1 0 0 0 ----II---------------~~---------------~ ------------~---------------~~----------- Critical Gap Module: Critical Gp: 4.1 xxxx xxxxx xxxxx xxxx xxxxx 6.8 6.5 6.9 xxxxx xxxx xxxxx Fo1lowUpTim: 2.2 xxxx xxxxx xxxxx xxxx xxxxx 3.5 4.0 3.3 xxxxx xxxx xxxxx -----------I~---------------~~---------------~ ------------I---------------~I---- Capacity Module: Cnflict Vol: 1059 xxxx xxxxx xxxx xxxx xxxxx 1981 2903 530 xxxx xxxx xxxxx Potent Cap.: 665 xxxx xxxxx xxxx xxxx xxxxx 55 16 499 xxxx xxxx xxxxx Move Cap.: 665 xxxx xxxxx xxxx xxxx xxxxx 55 16 499 xxxx xxxx xxxxx Total Cap: xxxx xxxx xxxxx xxxx xxxx xxxxx 172 87 xxxxx 66 87 xxxxx Volume/Cap: 0.00 xxxx xxxx xxxx xxxx xxxx 0.01 0.00 0.00 xxxx xxxx xxxx Level Of Service Module: 2Way95thQ: 0.0 xxxx xxxxx xxxx xxxx xxxxx xxxx xxxx xxxxx xxxx xxxx xxxxx Control Del: 10.4 xxxx xxxxx xxxxx xxxx xxxxx xxxxx xxxx xxxxx xxxxx xxxx xxxxx ""° LOS by Move: B * * * * * * * * * Movement: LT - L'TR - RT LT - LTR - RT LT - LTR - RT LT - LTR - RT ' Shared Cap.: xxxx xxxx xxxxx xxxx xxxx xxxxx xxxx 221 xxxxx xxxx xxxx xxxxx SharedQueue:xxxxx xxxx xxxxx xxxxx xxxx xxxxx xxxxx 0.0 xxxxx xxxxx xxxx xxxxx ens Shrd ConDel:xxxxx xxxx xxxxx xxxxx xxxx xxxxx xxxxx 21.6 xxxxx xxxxx xxxx xxxxx Shared LOS : * * * * * * . * C * * * * ApproachDel: xxxxxx xxxxxx 21.6 xxxxxx ApproachLOS: * * C * e~* ******************************************************************************** Note: Queue reported is the number of cars per lane. ******************************************************************************** Traffix 7.9.0215 (c) 2008 Dowling Assoc. Licensed to TJKM, PLEASANTON, CA f ~-, F, ~ ~~ ~Q1 Existing Conditions PM Tue Apr 8, 2008 20:01:56 Page 13-1 Arroyo Vista Housing Redevelopment Traffic Impact Study Existing Condition - PM -------------------------------------------------------------------------------- Level Of Service Computation Report 2000 HCM Unsignalized Method (Base Volume Alternative) ******************************************************************************** Intersection #12 Dougherty Road/N. Mariposa Drive ***************************************,r**************************************** Average Delay (sec/veh): 0.1 Worst Case Level Of Service: C[ 19.5] ******************************************************************************** Approach: North Bound South Bound East Bound West Bound Movement : L - T - R L - T - R L - T - R L - T - R ------------~---------------~~---------------~~---------------~I---------------~ Control: Uncontrolled Uncontrolled Stop Sign Stop Sign Rights: Include Include Include Include Lanes : 1 0 2 0 0 0 0 1 1 0 0 0 1! 0 0 0 0 0 0 0 Volume Module: Base Vol: 10 1710 0 0 980 2 6 0 6 0 0 0 Growth Adj: 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 Initial Bse: 10 1710 0 0 980 2 6 0 6 0 0 0 User Adj: 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 PHF Adj: 0.95 0.95 0.95 0.95 0.95 0.95 0.95 0.95 0.95 0.95 0.95 0.95 PHF Volume: 11 1800 0 0 1032 2 6 0 6 0 0 0 Reduct Vol: 0 0 0 0 0 0 0 0 0 0 0 0 FinalVolume: 11 1800 0 0 1032 2 6 0 6 0 0 0 ------------~---------------~I---------------~~---------------~I---------------I Critical Gap Module: Critical Gp: 4.1 xxxx xxxxx xxxxx xxxx xxxxx 6.8 6.5 6.9 xxxxx xxxx xxxxx Fo1lowUpTim: 2.2 xxxx xxxxx xxxxx xxxx xxxxx 3.5 4.0 3.3 xxxxx xxxx xxxxx ------------~---------------~~---------------~I---------------I~---------------I Capacity Module: Cnflict Vol: 1034 xxxx xxxxx xxxx xxxx xxxxx 1954 2854 517 xxxx xxxx xxxxx Potent Cap.: 680 xxxx xxxxx xxxx xxxx xxxxx 57 17 509 xxxx xxxx xxxxx Move Cap.: 680 xxxx xxxxx xxxx xxxx xxxxx 57 17 509 xxxx xxxx xxxxx Total Cap: xxxx xxxx xxxxx xxxx xxxx xxxxx 175 89 xxxxx 67 88 xxxxx Volume/Cap: 0.02 xxxx xxxx xxxx xxxx xxxx 0.04 0.00 0.01 xxxx xxxx xxxx ------------~---------------~---------------~~---------------I~---------------~ Level Of Service Module: 2Way95thQ: 0.0 xxxx xxxxx xxxx xxxx xxxxx xxxx xxxx xxxxx xxxx xxxx xxxxx Control Del: 10.4 xxxx xxxxx xxxxx xxxx xxxxx xxxxx xxxx xxxxx xxxxx xxxx xxxxx LOS by MOVe: B * * * * * * * * * * * Movement: LT = LTR - RT LT - LTR - RT LT - LTR - RT LT - LTR - RT Shared Cap.: xxxx xxxx xxxxx xxxx xxxx xxxxx xxxx 260 xxxxx xxxx xxxx xxxxx SharedQueue:xxxxx xxxx xxxxx xxxxx xxxx xxxxx xxxxx 0.2 xxxxx xxxxx xxxx xxxxx Shrd ConDel:xxxxx xxxx xxxxx xxxxx xxxx xxxxx xxxxx 19.5 xxxxx xxxxx xxxx xxxxx Shared LOS: * * * * * * * C * * * ApproachDel: xxxxxx xxxxxx 19.5 xxxxxx ApproachLOS: * * C * ******************************************************************************** Note: Queue reported is the number of cars per lane. Traffix 7.9.0215 (c) 2008 Dowling Assoc. Licensed to TJKM, PLEASANTON, CA r 5~2 0~ ~~ Existing Conditions PM Tue Apr 8, 2008 20:01:56 Page 14-1 Arroyo Vista Housing Redevelopment Traffic Impact Study Existing Condition - PM ----------------------------------- Level Of Service Computation Report 2000 HCM Unsignalized Method (Base Volume Alternative) Intersection #13 Dougherty Road/S. Mariposa Drive ******************************************************************************** Average Delay (sec/veh): 0.2 Worst Case Level Of Service: C[ 22.0] ******************************************************************************** Approach: North Bound South Bound East Bound West Bound Movement : L - T - R L - T - R L - T - R L - T - R ------------~---------------~~---------------~~---------------I~---------------~ Control: Uncontrolled Uncontrolled Stop Sign Stop Sign Rights: Include Include Include Include Lanes : 1 0 2 0 0 0 0 1 1 0 0 0 1! 0 0 0 0 0 0 0 ------------I---------------~~---------------~~---------------~~---------------~ Volume Module: Base Vol: 12 1707 0 0 980 6 13 0 9 0 0 0 Growth Adj: 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 Initial Bse: 12 1707 0 0 980 6 13 0 9 0 0 0 User Adj: 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 PHF Adj: 0.94 0.94 0.94 0.94 0.94 0.94 0.94 0.94 0.94 0.94 0.94 0.94 PHF Volume: 13 1816 0 0 1043 6 14 0 10 0 0 0 Reduct Vol: 0 0 0 0 0 0 0 0 0 0 0 0 FinalVolume: 13 1816 0 0 1043 6 14 0 10 0 0 0 ------------~---------------~~---------------I~---------------~I---------------I Critical Gap Module: Critical Gp: 4.1 xxxx xxxxx xxxxx xxxx xxxxx 6.8 6.5 6.9 xxxxx xxxx xxxxx Fo1lowUpTim: 2.2 xxxx xxxxx xxxxx xxxx xxxxx 3.5 4.0 3.3 xxxxx xxxx xxxxx ------------~---------------~~---------------~~---------------~I--------------- Capacity Module: Cnflict Vol: 1049 xxxx xxxxx xxxx xxxx xxxxx 1979 2887 524 xxxx xxxx xxxxx Potent Cap.: 671 xxxx xxxxx xxxx xxxx xxxxx 55 16 503 xxxx xxxx xxxxx Move Cap.: 671 xxxx xxxxx xxxx xxxx xxxxx 54 16 503 xxxx xxxx xxxxx Total Cap: xxxx xxxx xxxxx xxxx xxxx xxxxx 171 87 xxxxx 65 86 xxxxx Volume/Cap: 0.02 xxxx xxxx xxxx xxxx xxxx 0.08 0.00 0.02 xxxx xxxx xxxx Level Of Service Module: 2Way95thQ: 0.1 xxxx xxxxx xxxx xxxx xxxxx xxxx xxxx xxxxx xxxx xxxx xxxxx Control Del: 10.5 xxxx xxxxx xxxxx xxxx xxxxx xxxxx xxxx xxxxx xxxxx xxxx xxxxx LOS by Move: B * * * * * * * * * * * Movement: LT - LTR - RT LT - LTR - RT LT - LTR - RT LT - LTR - RT Shared Cap.: xxxx xxxx xxxxx xxxx xxxx xxxxx xxxx 235 xxxxx xxxx xxxx xxxxx SharedQueue:xxxxx xxxx xxxxx xxxxx xxxx xxxxx xxxxx 0.3 xxxxx xxxxx xxxx xxxxx Shrd ConDel:xxxxx xxxx xxxxx xxxxx xxxx xxxxx xxxxx 22.0 xxxxx xxxxx xxxx xxxxx Shared LOS: * * * * * * * C * * ApproachDel: xxxxxx xxxxxx 22.0 xxxxxx ApproachLOS: * * C ******************************************************************************** Note: Queue reported is the number of cars per lane. ******************************************************************************** Traffix 7.9.0215 (c) 2008 Dowling Assoc. Licensed to TJKM, PLEASANTON, CA Existing Conditions PM Tue Apr 8, 2008 20:01:56 Page 15-1 Arroyo Vista Housing Redevelopment Traffic Impact Study Existing Condition - PM -------------------------------------------------------------------------------- Level Of Service Computation Report 2000 HCM Unsignalized Method (Base Volume Alternative) ******************************************************************************** Intersection #14 Dougherty Road/Monterey Drive ******************************************************************************** Average Delay (sec/veh): 0.1 Worst Case Level Of Service: B[ 12.2] ******************************************************************************** Approach: North Bound South Bound East Bound West Bound Movement : L - T - R L - T - R L - T - R L - T - R ------------~---------------II---------------~~---------------~~---------------~ Control: Uncontrolled Uncontrolled Stop Sign Stop Sign Rights: Include Include Include Include Lanes : 1 0 2 0 0 0 0 1 1 0 0 0 0 0 1 0 0 0 0 0 Volume Module: Base Vol: 23 1719 0 0 986 3 0 0 14 0 0 0 Growth Adj: 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 Initial Bse: 23 1719 0 0 986 3 0 0 14 0 0 0 User Adj: 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 PHF Adj: 0.97 0.97 0.97 0.97 0.97 0.97 0.97 0.97 0.97 0.97 0.97 0.97 PHF Volume: 24 1772 0 0 1016 3 0 0 14 0 0 0 Reduct Vol: 0 0 0 0 0 0 0 0 0 0 0 0 FinalVolume: 24 1772 0 0 1016 3 0 0 14 0 0 0 ------------~---------------~~---------------I~---------------~~---------------~ Critical Gap Module: Critical Gp: 4.1 xxxx xxxxx xxxxx xxxx xxxxx xxxxx xxxx 6.9 xxxxx xxxx xxxxx Fo1lowUpTim: 2.2 xxxx xxxxx xxxxx xxxx xxxxx xxxxx xxxx 3.3 xxxxx xxxx xxxxx ------------I---------------II---------------~~---------------~~---------------I Capacity Module: Cnflict Vol: 1020 xxxx xxxxx xxxx xxxx xxxxx xxxx xxxx 510 xxxx xxxx xxxxx Potent Cap.: 688 xxxx xxxxx xxxx xxxx xxxxx xxxx xxxx 514 xxxx xxxx xxxxx Move Cap.: 688 xxxx xxxxx xxxx xxxx xxxxx xxxx xxxx 514 xxxx xxxx xxxxx Total Cap: xxxx xxxx xxxxx xxxx xxxx xxxxx 174 88 xxxxx 66 87 xxxxx Volume/Cap: 0.03 xxxx xxxx xxxx xxxx xxxx xxxx xxxx 0.03 xxxx xxxx xxxx Level Of Service Module: 2Way95thQ: 0.1 xxxx xxxxx xxxx xxxx xxxxx xxxx xxxx 0.1 xxxx xxxx xxxxx Control Del: 10.4 xxxx xxxxx xxxxx xxxx xxxxx xxxxx xxxx 12.2 xxxxx xxxx xxxxx LOS by MOVe: B * * * * * * * B * * * Movement: LT - LTR - RT LT - LTR - RT LT - LTR - RT LT - LTR - RT Shared Cap.: xxxx xxxx xxxxx xxxx xxxx xxxxx xxxx xxxx xxxxx xxxx xxxx xxxxx SharedQueue:xxxxx xxxx xxxxx xxxxx xxxx xxxxx xxxxx xxxx xxxxx xxxxx xxxx xxxxx Shrd ConDel:xxxxx xxxx xxxxx xxxxx xxxx xxxxx xxxxx xxxx xxxxx xxxxx xxxx xxxxx Shared LOS : * * * * * * * * * * ApproachDel: xxxxxx xxxxxx 12.2 xxxxxx ApproachLOS: * * B ******************************************************************************** Note: Queue reported is the number of cars per lane. ******************************************************************************** Traffix 7.9.0215 (c) 2008 Dowling Assoc. Licensed to TJKM, PLEASANTON, CA ~~ ~~~~ ~ ~r Appendix D -Project Trip Generation Calculation Spreadsheets S~~ o.F 8~1 a O 2 W a a o' e° ti o ° "~'' S x 4 e ~ .. ~ ~ o v S s m J ~ N I N V d C2 p N f~ h H ~ N N N H r 6 ? .~ ~'. ~ a E ~G C ~ o c ~ ~ F 0 c E ~ v `~ a d c m U ' p~ Q m V ~ 1 W C 3 ~ c .N c ~ D e Q H }9 2 0 N V~ U T 0~ 2 ` O I p m ~ ~ - ~ j O s m a ~ E ~o ~ ~ N C H H ~ r ~ N ~D r m~o~m~ ro N tp N W ~ M 5' r ~ ~ E ~~c ia ~~mo u i > ~ C :O N rv W H N c E o N~ N N M a ~ y S t u O N M ~+ O+ X N F ~+ ~ 3 O O W M N N '; V o c v i N x .. n . 0 N X X ' 0 0 A C C N C C J W N ~~ C V~ ' ~ A lp ~I d .~-. N OJ E m~ O N C a .*-,mN m d M '~~ 2 a ~ c~~ c m r x o c x c m E o x I N K OZZfn~ C .C ~. 'N„ II ~ V J I^~ C =N n' ~ OI d d d d ~% 3 II ~ C ~ N C II ~ C ~ m ~ N W C 0 O O O _ O: x~ J J x O J J ~ J 1 i ~ ~ 0 0 ' Z d T .. ~~ p N ' _ .: ~ N N ' ~~ U ~ T X 0 0 0 W ~~~~H 2 N JUJ~Qa N ~ NOQd t0 ~ N N d'~ Appendix E -Level of Service Worksheets: Existing plus Project Conditions Existing + Prj. Conditions Wed Apr 9, 2008 14:26:27 Page 1-1 -------------------------------------------------------------------------------- Arroyo Vista Housing Redevelopment Traffic Impact Study Existing + Project Conditions AM -------------------------------------------------------------------------------- Scenario Report Scenario: Existing + Prj. Conditions AM Command: volume: Geometry: Impact Fee: Trip Generation: Trip Distribution: Paths: Routes: Configuration: Existing + Project AM E+P AM Capital Improvement Project Default Impact Fee Default Trip Generation Default Trip Distribution Default Path Default Route Existing PHF Traffix 7.9.0215 (c) 2008 Dowling Assoc. Licensed to TJKM, PLEASANTON, CA ~~~ o~ ~~1 Existing + Prj. Conditions Wed Apr 9, 200814:26:28 Page 2-1 Arroyo Vista Housing Redevelopment Traffic Impact Study _ Existing + Project Conditions AM -------------------------------------------------------------------------------- Level Of Service Computation Report CCTALOS Method (Base Volume Alternative) ******************************************************************************** Intersection #1 Dougherty Road/Amador Valley Boulevard ******************************************************************************** Cycle (sec): 60 Critical Vol./Cap.(X): 0.761 Loss Time (sec): 9 (Y+R=4.0 sec) Average Delay (sec/veh): xxxxxx Optimal Cycle: 78 Level Of Service: C ******************************************************************************** Approach: North Bound South Bound East Bound west Bound Movement : L - T - R L - T - R L - T - R L - T - R ------------I---------------~~---------------I~---------------~~---------------~ Control: Protected Protected Split Phase Split Phase Rights: Include Include Include Include Min. Green: 0 0 0 0 0 0 0 0 0 0 0 0 Lanes: 1 0 2 0 0 0 0 1 1 0 1 0 0 0 1 0 0 0 0 0 Volume Module: Base Vol: 378 460 0 0 1352 216 94 0 330 0 0 0 Growth Adj: 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 Initial Bse: 378 460 0 0 1352 216 94 0 330 0 0 0 User Adj: 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 PHF Adj: 0.96 0.96 0.96 0.96 0.96 0.96 0.96 0.96 0.96 0.96 0.96 0.96 PHF Volume: 394 479 0 0 1408 225 98 0 344 0 0 0 Reduct Vol: 0 0 0 0 0 0 0 0 0 0 0 0 Reduced Vol: 394 479 0 0 1408 225 98 0 344 0 0 0 RTOR Reduct: 0 0 0 0 0 0 0 0 344 0 0 0 RTOR Vol: 394 479 0 0 1408 225 98 0 0 0 0 0 PCE Adj: 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 MLF Adj: 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 FinalVOlume: 394 479 0 0 1408 225 98 0 0 0 0 0 ------------I---------------~~---------------I~---------------~~---------------~ Saturation Flow Module: Sat/Lane: 1720 1720 1720 1720 1720 1720 1720 1720 1720 1720 1720 1720 Adjustment: 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 Lanes: 1.00 2.00 0.00 0.00 1.72 0.28 1.00 0.00 1.00 0.00 0.00 0.00 Final Sat.: 1720 3440 0 0 2966 474 1720 0 1720 0 0 0 Capacity Analysis Module: Vol/Sat: 0.23 0.14 0.00 0.00 0.47 0.47 0.06 0.00 0.00 0.00 0.00 0.00 Crit Volume: 394 817 98 0 Crit Moves: **** **** **** ******************************************************************************** Traffix 7.9.0215 (c) 2008 Dowling Assoc. Licensed to TJKM, PLEASANTON, CA Existing + Prj. Conditions Wed Apr 9, 2008 14:26:28 Page 3-1 Arroyo Vista Housing Redevelopment Traffic Impact Study Existing + Project Conditions AM -------------------------------------------------------------------------------- Level Of Service Computation Report CCTALOS Method (Base Volume Alternative) ******************************************************************************** Intersection #2 Dougherty Road/Scarlett Drive ******************************************************************************** Cycle (sec): 80 Critical Vol./Cap.(X): 0.616 Loss Time (sec): 9 (Y+R=4.0 sec) Average Delay (sec/veh): xxxxxx Optimal Cycle: 48 Level Of Service: B ******************************************************************************** Approach: North Bound South Bound East Bound West Bound Movement : L - T - R L - T - R L - T - R L - T - R ------------I---------------~~---------------I~---------------~~---------------~ Control: Protected Protected Permitted Permitted Rights: Include Include Include Include Min. .Green: 0 0 0 0 0 0 0 0 0 0 0 0 Lanes : 1 0 2 0 1 1 0 2 0 1 0 0 1! 0 0 1 0 0 1 0 ------------~---------------~I---------------~~---------------~~---------------~ Volume Module: Base Vol: 14 819 8 8 1772 6 17 0 74 26 1 10 Growth Adj: 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 Initial Bse: 14 819 8 8 1772 6 17 0 74 26 1 10 User Adj: 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 PHF Adj: 0.96 0.96 0.96 0.96 0.96 0.96 0.96 0.96 0.96 0.96 0.96 0.96 PHF Volume: 15 853 8 8 1846 6 18 0 77 27 1 10 Reduct Vol: 0 0 0 0 0 0 0 0 0 0 0 0 Reduced Vol: 15 853 8 8 1846 6 18 0 77 27 1 10 RTOR Reduct: 0 0 8 0 0 6 0 0 0 0 0 0 RTOR Vol: 15 853 0 8 1846 0 18 0 77 27 1 10 PCE Adj: 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 MLF Adj: 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 FinalVolume: 15 853 0 8 1846 0 18 0 77 27 1 10 ------------~---------------~~---------------~~---------------~~---------------I Saturation Flow Module: Sat/Lane: 1720 1720 1720 1720 1720 1720 1720 1720 1720 1720 1720 1720 Adjustment: 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 Lanes: 1.00 2.00 1.00 1.00 2.00 1.00 0.19 0.00 0.81 1.00 0.09 0.91 Final Sat.: 1720 3440 1720 1720 3440 1720 321 0 1399 1720 156 1564 ------------~---------------~I---------------I~---------------~~---------------I Capacity Analysis Module: Vol/Sat: 0.01 0.25 0.00 0.00 0.54 0.00 0.06 0.00 0.06 0.02 0.01 0.01 Crit Volume: 15 923 95 27 Crit Moves: **** **** **** **** ******************************************************************************** Traffix 7.9.0215 (c) 2008 Dowling Assoc. Licensed to TJKM, PLEASANTON, CA Existing + Prj. Conditions Wed Apr 9, 2008 14:26:28 Page 4-1 Arroyo Vista Housing Redevelopment Traffic Impact Study ,. Existing + Project Conditions AM Level Of Service Computation Report CCTALOS Method (Base Volume Alternative) §, ****************** ********************************************* ***************** Intersection #3 Dougherty Road/Sierra Lane Cycle (sec): 60 Critical Vol./Cap.(X): 0.677 Loss Time (sec): 12 (Y+R=4.0 sec) Average Delay (sec/veh) : xxxxxx Optimal Cycle: 71 Level Of Service: B Approach: Nor th Bound South Bound East Bound West Bound Movement : L - T - R L - T - R L - T - R ----------~ L - T - R ~---------------I ------------~----- Control: Pr ----------~I---------------I~----- otected Protected Protected Protected ~!' Rights: Include Include Include Include Min. Green: 0 0 0 0 0 0 0 0 0 0 0 0 Lanes : 1 0 2 0 1 1 0 2 0 1 1 0 1 0 1 1 0 0 1 0 ------------~----- ----------~~---------------~~---------------I ~---------------~ ~' Volume Module: Base Vol: 150 770 19 10 1725 86 31 2 50 18 5 1 Growth Adj: 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 Initial Bse: 150 770 19 10 1725 86 31 2 50 18 5 1 y User Adj: 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 PHF Adj: 0.94 0.94 0.94 0.94 0.94 0.94 0.94 0.94 0.94 0.94 0.94 0.94 PHF Volume: 160 819 20 11 1835 91 33 2 53 19 5 1 Reduct Vol: 0 0 0 0 0 0 0 0 0 0 0 0 rep Reduced Vol: 160 819 20 11 1835 91 33 2 53 19 5 1 RTOR Reduct: 0 0 19 0 0 33 0 0 53 0 0 0 , RTOR Vol: 160 819 1 11 1835 59 33 2 0 19 5 1 PCE Adj: 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 *~• MLF Adj: 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 FinalVolume: 160 819 1 11 1835 59 33 2 0 19 5 1 Saturation Flow Module: Sat/Lane: 1650 1650 1650 1650 1650 1650 1650 1650 1650 1650 1650 1650 ~" Adjustment: 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 Lanes: 1.00 2.00 1.00 1.00 2.00 1.00 1.00 1.00 1.00 1.00 0.83 0.17 Final Sat.: 1650 3300 1650 1650 3300 1650 1650 1650 1650 1650 1375 275 ------------~----- ----------~~---------------~~---------------~ I---------------I "~: Capacity Analysis Module: Vol/Sat: 0.10 0.25 0.00 0.01 0.56 0.04 0.02 0.00 0.00 0.01 0.00 0.00 Crit Volume: 160 918 33 6 Crit Moves: **** **** **** **** `~ ******************************************************************************** Traffix 7.9.0215 (c) 2008 Dowling Assoc. Licensed to TJKM, PLEASANTON, CA s5~ ~ ~o~ Existing + Prj. Conditions Wed Apr 9, 2008 14:26:28 Page 5-1 Arroyo Vista Housing Redevelopment Traffic Impact Study Existing + Project Conditions AM -------------------------------------------------------------------------------- Level Of Service Computation Report CCTALOS Method (Base Volume Alternative) ******************************************************************************** Intersection #4 Dougherty Road/Dublin Boulevard ******************************************************************************** Cycle (sec): 150 Critical Vol./Cap.(X): 0.488 Loss Time (sec): 12 (Y+R=4.0 sec) Average Delay (sec/veh): xxxxxx Optimal Cycle: 45 Level Of Service: A Approach: North Bound South Bound East Bound West Bound Movement : L - T - R L - T - R L - T - R L - T - R ------------~---------------I~---------------~~---------------~~---------------~ Control: Protected Protected Protected Protected Rights: Include Include Ovl Include Min. Green: 0 0 0 0 0 0 0 0 0 0 0 0 Lanes: 3 0 3 0 2 2 0 3 1 0 2 0 3 0 2 3 0 3 0 1 Volume Module: Base Vol: 542 626 401 311 1496 57 27 209 265 216 297 163 Growth Adj: 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 Initial Bse: 542 626 401 311 1496 57 27 209 285 216 297 163 User Adj: 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 PHF Adj: 0.93 0.93 0.93 0..93 0.93 0.93 0.93 0.93 0.93 0.93 0.93 0.93 PHF Volume: 583 673 431 334 1609 61 29 225 306 232 319 175 Reduct Vol: 0 0 0 0 0 0 0 0 0 0 0 0 Reduced Vol: 583 673 431 334 1609 61 29 225 306 232 319 175 RTOR Reduct: 0 0 89 0 0 0 0 0 223 0 0 175 RTOR Vol: 583 673. 342 334 1609 61 29 225 83 232 319 0 PCE Adj: 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 MLF Adj: 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 FinalVolume: 583 673 342 334 1609 61 29 225 83 232 319 0 ------------~---------------I~---------------II---------------~I---------------I Saturation Flow Module: Sat/Lane: 1650 1650 1650 1650 1650 1650 1650 1650 1650 1650 1650 1650 Adjustment: 0.87 1.10 1.00 0.91 1.00 1.00 0.91 1.00 0.91 0.87 1.00 1.00 Lanes: 3.00 3.00 2.00 2.00 3.85 0.15 2.00 3.00 2.00' 3.00 3.00 1.00 Final Sat.: 4307 5445 3300 3000 6358 242 3000 4950 3000 4307 4950 1650 ------------~---------------~~---------------~~---------------I~---------------~ Capacity Analysis Module: Vol/Sat: 0.14 0.12 0.10 0.11 0.25 0.25 0.01 0.05 0.03 0.05 0.06 0.00 Crit Volume: 194 417 75 77 Crit Moves• **** **** **** **** ******************************************************************************** Traffix 7.9.0215 (c) 2008 Dowling Assoc. Licensed to TJKM, PLEASANTON, CA Existing + Prj. Conditions Wed Apr 9, 2008 14:26:28 Page 6-1 Arroyo Vista Housing Redevelopment Traffic Impact Study Existing + Project Conditions AM -------------------------------------------------------------------------------- Level Of Service Computation Report CCTALOS Method (Base Volume Alternative) ******************************************************************************** Intersection #5 Dougherty Road/westbound I-580 off-ramp ******************************************************************************** Cycle (sec): 60 Critical Vol./Cap.(X): 0.585 Loss Time (sec): 6 (Y+R=4.0 sec) Average Delay (sec/veh): xxxxxx Optimal Cycle: 35 Level Of Service: A Approach: North Bound South Bound East Bound West Bound Movement : L - T - R L - T - R L - T - R L - T - R ------------~---------------~~---------------~I---------------~~---------------~ Control: Protected Protected Split Phase Split Phase Rights: Include Ignore Include Include Min. Green: 0 0 0 0 0 0 0 0 0 0 0 0 Lanes : 0 0 3 0 0 0 0 2 0 0 0 0 0 0 0 2 0 0 0 2 Volume Module: Base Vol: 0 1017 0 0 1286 0 0 0 0 426 0 552 Growth Adj: 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 Initial Bse: 0 1017 0 0 1286 0 0 0 0 426 0 552 User Adj: 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 PHF Adj: 0.94 0.94 0.94 0.94 0.94 0.94 0.94 0.94 0.94 0.94 0.94 0.94 PHF Volume: 0 1082 0 ,~0 1368 0 0 0 0 453 0 587 Reduct Vol: 0 0 0 0 0 0 0 0 0 0 0 0 Reduced Vol: 0 1082 0 0 1368 0 0 0 0 453 0 587 RTOR Reduct: 0 0 0 0 0 0 0 0 0 0 0 0 RTOR Vol: 0 1082 0 0 1368 0 0 0 0 453 0 587 PCE Adj: 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 MLF Adj: 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 FinalVolume: 0 1082 0 0 1368 0 0 0 0 453 0 587 ------------I---------------~~---------------~I---------------~~---------------~ Saturation Flow Module: Sat/Lane: 1720 1720 1720 1720 1720 1720 1720 1720 1720 1720 1720 1720 Adjustment: 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 0.91 1.00 0.91 Lanes: 0.00 3.00 0.00 0.00 2.00 0.00 0.00 0.00 0.00 2.00 0.00 2.00 Final Sat.: 0 5160 0 0 3440 0 0 0 0 3127 0 3127 Capacity Analysis Module: Vol/Sat: 0.00 0.21 0.00 0.00 0.40 0.00 0.00 0.00 0.00 0.14 0.00 0.19 Crit Volume: 0 684 0 294 Crit Moves: **** **** **** ******************************************************************************** Traffix 7.9.0215 (c) 2008 Dowling Assoc. Licensed to TJKM, PLEASANTON, CA r. ~~~ ~~ ~~ Existing + Prj. Conditions Wed Apr 9, 2008 14:26:28 Page 7-1 Arroyo Vista Housing Redevelopment Traffic Impact Study Existing + Project Conditions AM -------------------------------------------------------------------------------- Level Of Service Computation Report CCTALOS Method (Base Volume Alternative) ******************************************************************************** Intersection #6 Hopyard Road/Eastbound I-580 off-ramp ******************************************************************************** Cycle (sec): 60 Critical Vol./Cap.(X): 0.724 Loss Time (sec): 6 (Y+R=4.0 sec) Average Delay (sec/veh): xxxxxx Optimal Cycle: 52 Level Of Service: C ******************************************************************************** Approach: North Bound South Bound East Bound West Bound Movement : L - T - R L - T - R L - T - R L - T - R ------------~---------------~I---------------~~---------------~~---------------I Control: Protected Protected Split Phase Split Phase Rights: WideBypass Ignore Include Include Min. Green: 0 0 0 0 0 0 0 0 0 0 0 0 Lanes : 0 0 3 0 0 0 0 3 0 0 2 0 0 0 2 0 0 0 0 0 Volume Module: Base Vol: 0 791 0 0 1387 0 591 0 1310 0 0 0 Growth Adj: 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 Initial Bse: 0 791 0 0 1387 0 591 0 1310 0 0 0 User Adj: 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 PHF Adj: 0.95 0.95 0.95 0.95 0.95 0.95 0.95 0.95 0.95 0.95 0.95 0.95 PHF Volume: 0 833 0 0 1460 0 622 0 1379 0 0 0 Reduct Vol: 0 0 0 0 0 0 0 0 0 0 0 0 Reduced Vol: 0 833 0 0 1460 0 622 0 1379 0 0 0 RTOR Reduct: 0 0 0 0 0 0 0 0 0 0 0 0 RTOR Vol: 0 833 0 0 1460 0 622 0 1379 0 0 0 PCE Adj: 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 MLF Adj: 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 FinalVolume: 0 833 0 0 1460 0 622 0 1379 0 0 0 Saturation Flow Module: Sat/Lane: 1720 1720 1720 1720 1720 1720 1720 1720 1720 1720 1720 1720 Adjustment: 1.00 1.00 1.00 1.00 1.00 1.00 0.91 1.00 0.91 1.00 1.00 1.00 Lanes: 0.00 3.00 0.00 0.00 3.00 0.00 2.00 0.00 2.00 0.00 0.00 0.00 Final Sat.: 0 5160 0 0 5160 0 3127 0 3127 0 0 0 ------------~---------------II---------------~I---------------~~---------------~ Capacity Analysis Module: Vol/Sat: 0.00 0.16 0.00 0.00 0.28 0.00 0.20 0.00 0.44 0.00 0.00 0.00 Crit Volume: 0 487 689 0 Crit Moves: **** **** **** ******************************************************************************** Traffix 7.9.0215 (c) 2008 Dowling Assoc. Licensed to TJKM, PLEASANTON, CA r t Existing + Prj. Conditions Wed Apr 9, 2008 14:26:28 Page 8-1 Arroyo Vista Housing Redevelopment. ` Traffic Impact Study .: Existing + Project Conditions AM ----------------- --------------------------------------------- Level Of Service Computation Report- ------- ----------- ~° CCTALOS Method (Base Volume Alternative) ***************** ********************************************* ******* *********** Intersection #7 D ublin Boulevard/Scarlett Drive Cycle (sec): 100 Critical Vol./Cap.(X): 0.210 Loss Time (sec): 12 (Y+R=4.0 sec) Average Delay (sec/veh ): xxxxxx Optimal Cycle r 29 Level Of Service: A Approach: No rth Bound South Bound East Bound We st Bound Movement : L ----------- ~ - T - R L - T - R L - T - R L - T - R ~" - ---- Control: P -----------~I---------------II--------------- rotected Protected Protected ~----- Pr ----------~ otected M Rights: Include Include Include Include Min. Green: 0 0 0 0 0 0 0 0 0 0 0 0 Lanes : 1 0 0 0 1 1 0 0 1 0 1 0 3 0 1 1 0 3 0 0 ------------~---- -----------I~---------------~~--------------- ~~----- -----,-----~ Volume Module: Base Vol: 48 0 18 8 0 0 5 821 21 15 691 0 Growth Adj: 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 Initial Bse: 48 0 18 8 0 0 5 821 21 15 691 0 User Adj: 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 ~, PHF Adj: 0.97 0.97 0.97 0.97 0.97 0.97 0.97 0.97 0.97 0.97 0.97 0.97 ~;: PHF Volume: 49 0 19 8 0 0 5 846 22 15 712 0 Reduct Vol: 0 0 0 0 0 0 0 0 0 0 0 0 Reduced Vol: 49 0 19 8 0 0 5 846 22 15 712 0 RTOR Reduct: 0 0 15 0 0 0 0 0 22 0 0 0 w,;a RTOR Vol: 49 0 3 8 0 0 5 846 0 15 712 0 PCE Adj: 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 MLF Adj: 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 ~` FinalVOlume: 49 0 3 8 0 0 5 846 0 15 712 0 Saturation Flow M odule: Sat/Lane: 1650 1650 1650 1650 1650 1650 1650 1650 1650 1650 1650 1650 Adjustment: 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 Lanes: 1.00 0.00 1.00 1.00 1.00 0.00. 1.00 3.00 1.00 1.00 3.00 0.00 ~"` Final Sat.: 1650 0 1650 1650 1650 0 1650 4950 1650 1650 4950 0 ------------I---- -----------~~---------------II--------------- ~----- ----------~ ~r Capacity Analysis Module: Vol/Sat: 0.03 0.00 0.00 0.00 0.00 0.00 0.00 0.17 0.00 0.01 0.14 0.00 "*' Crit Volume: 49 0 282 15 Crit Moves• **** **** **** **** ***************** ********************************************* ******* *********** Traffix 7.9.0215 (c) 2008 Dowling Assoc. Licensed to TJKM, PLEASANTON, CA G ~, Existing + Prj. Conditions Wed Apr 9, 2008 14:26:28 Page 9-1 Arroyo Vista Housing Redevelopment Traffic Impact Study Existing + Project Conditions AM -------------------------------------------------------------------------------- Level Of Service Computation Report CCTALOS Method (Base Volume Alternative) ******************************************************************************** Intersection #8 Hacienda Drive/Dublin Boulevard ******************************************************************************** Cycle (sec): 90 Critical Vol./Cap.(X): 0.260 Loss Time (sec): 12 (Y+R=4.0 sec) Average Delay (sec/veh): xxxxxx Optimal Cycle: 31 Level Of Service: A ******************************************************************************** Approach: North Bound South Bound East Bound West Bound Movement : L - T - R L - T - R L - T - R L - T - R ---------------------------~~---------------~~---------------~I---------------~ Control: Protected Protected Protected Protected Rights: Include Include Ovl Include Min. Green: 0 0 0 0 0 0 0 0 0 0 0 0 Lanes : 3 0 3 0 2 2 0 3 1 0 2 0 3 0 2 3 0 3 0 1 Volume Module: Base Vol: 321 455 68 25 327 60 43 191 119 178 404 40 Growth Adj: 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 Initial Bse: 321 455 68 25 327 60 43 191 119 178 404 40 User Adj: 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 PHF Adj: 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 PHF Volume: 365 517 77 28 372 68 49 217 135 202 459 45 Reduct Vol: 0 0 0 0 0 0 0 0 0 0 0 0 Reduced Vol: 365 517 77 28 372 68 49 217 135 202 459 45 RTOR Reduct: 0 0 77 0 0 0 0 0 135 0 0 16 RTOR Vol: 365 517 0 28 372 68 49 217 0 202 459 30 PCE Adj: 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 MLF Adj: 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 FinalVolume: 365 517 0 28 372 68 49 217 0 202 459 30 Saturation Flow Module: Sat/Lane: 1650 1650 1650 1650 1650 1650 1650 1650 1650 1650 1650 1650 Adjustment: 0.87 1.00 0.91 0.91 1.00 1.00 0.91 1.00 0.91 0.87 1.00 1.00 Lanes: 3.00 3.00 2.00 2.00 3.38 0.62 2.00 3.00 2.00 3.00 3.00 1.00 Final Sat.: 4307 4950 3000 3000 5577 1023 3000 4950 3000 4307 4950 1650 ------------I---------------~~---------------~~---------------~I---------------I Capacity Analysis Module: Vol/Sat: 0.08 0.10 0.00 0.01 0.07 0.07 0.02 0.04 0.00 0.05 0.09 0.02 Crit Volume: 122 110 24 153 Crit Moves: **** **** **** **** ******************************************************************************** Traffix 7.9.0215 (c) 2008 Dowling Assoc. Licensed to TJKM, PLEASANTON, CA ~~ ~ ~~' ~~ f f Existing + Prj. Conditions Wed Apr 9, 2008 14:26:28 Page 10-1 Arroyo vista Housing Redevelopment Traffic Impact Study Existing + Project Conditions AM -------------------------------------------------------------------------------- Level Of Service Computation Report CCTALOS Method (Base Volume Alternative) ******************************************************************************** Intersection #9 Hacienda Drive/Westbound I-580 off-ramp ******************************************************************************** Cycle (sec): 55 Critical Vol./Cap.(X): 0.339 Loss Time (sec): 6 (Y+R=4.0 sec) Average Delay (sec/veh): xxxxxx Optimal Cycle: 22 Level Of Service: A Approach: North Bound South Bound East Bound West Bound Movement : L - T - R L - T - R L - T - R L - T - R ------------~---------------I~---------------~~---------------~I---------------~ Control: Protected Protected Split Phase Split Phase Rights: WideBypass Ignore Include Include Min . Green : 0 0 0 0 0 0 0 0 0 0 0 0 Lanes: 0 0 3 0 0 0 0 3 0 0 0 0 0 0 0 2 0 0 0 2 Volume Module: Base Vol: 0 804 0 0 397 0 0 0 0 531 0 300 Growth Adj: 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 Initial Bse: 0 804 0 0 397 0 0 0 0 531 0 300 User Adj: 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 PHF Adj: 0.96 0.96 0.96 0.96 0.96 0.96 0.96 0.96 0.96 0.96 0.96 0.96 PHF Volume:. 0 838 0 0 414 0 0 0 0 553 0 313 Reduct Vol: 0 0 0 0 0 0 0 0 0 0 0 0 Reduced Vol: 0 838 0 0 414 0 0 0 0 553 0 313 RTOR Reduct: 0 0 0 0 0 0 0 0 0 0 0 0 RTOR Vol: 0 838 0 0 414 0 0 0 0 553 0 313 PCE Adj: 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 MLF Adj: 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 FinalVolume: 0 838 0 0 414 0 0 0 0 553 0 313 Saturation Flow Module: Sat/Lane: 1720 1720 1720 1720 1720 1720 1720 1720 1720 1720 1720 1720 Adjustment: 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 0.91 1.00 0.91 Lanes: 0.00 3.00 0.00 0.00 3.00 0.00 0.00 0.00 0.00 2.00 0.00 2.00 Final Sat.: 0 5160 0 0 5160 0 0 0 0 3127 0 3127 ------------~---------------I~---------------~~---------------~~---------------~ Capacity Analysis Module: Vol/Sat: 0.00 0.16 0.00 0.00 0.08 0.00 0.00 0.00 0.00 0.18 0.00 0.10 Crit Volume: 279 0 0 277 Crit Moves: **** **** **** ******************************************************************************** ~r Traffix 7.9.0215 (c) 2008 Dowling Assoc. Licensed to TJKM, PLEASANTON, CA ~r Sri D-~ ~o~ Existing + Prj. Conditions Wed Apr 9, 2008 14:26:28 Page 11-1 Arroyo Vista Housing Redevelopment Traffic Impact Study Existing + Project Conditions AM -------------------------------------------------------------------------------- Level Of Service Computation Report CCTALOS Method (Base Volume Alternative) ******************************************************************************** Intersection #10 Hacienda Drive/Eastbound 2-580 off-ramp ******************************************************************************** Cycle (sec): 55 Critical Vol./Cap.(X): 0.530 Loss Time (sec): 6 (Y+R=4.0 sec) Average Delay (sec/veh): xxxxxx Optimal Cycle: 31 Level Of Service: A Approach: North Bound South Bound East Bound West Bound Movement : L - T - R L - T - R L - T - R L - T - R ------------I---------------II---------------~~---------------I---------------I Control: Protected Protected Split Phase Split Phase Rights: Ignore WideBypass Include Include Min. Green: 0 0 0 0 0 0 0 0 0 0 0 0 Lanes : 0 0 3 0 0 0 0 3 0 0 2 0 0 0 2 0 0 0 0 0 Volume Module: Base Vol: 0 450 0 0 738 0 694 0 1093 0 0 0 Growth Adj: 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 Initial Bse: 0 450 0 0 738 0 694 0 1093 0 0 0 User Adj: 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1..00 1.00 1.00 1.00 1.00 PHF Adj: 0.93 0.93 0.93 0.93 0.93 0.93 0.93 0.93 0.93 0.93 0.93 0.93 PHF Volume: 0 484 0 0 794 0 746 0 1175 0 0 0 Reduct Vol: 0 0 0 0 0 0 0 0 0 0 0 0 Reduced Vol: 0 484 0 0 794 0 746 0 1175 0 0 0 RTOR Reduct: 0 0 0 0 0 0 0 0 0 0 0 0 RTOR Vol: 0 484 0 0 794 0 746 0 1175 0 0 0 PCE Adj: 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 MLF Adj: 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 FinalVolume: 0 484 0 0 794 0 746 0 1175 0 0 0 Saturation Flow Module: Sat/Lane: 1720 1720 1720 1720 1720 1720 1720 1720 1720 1720 1720 1720 Adjustment: 1.00,1.00 1.00 1.00 1.00 1.00 0.91 1.00 0.91 1.00 1.00 1.00 Lanes: 0.00 3.00 0.00 0.00 3.00 0.00 2.00 0.00 2.00 0.00 0.00 0.00 Final Sat.: 0 5160 0 0 5160 0 3127 0 3127 0 0 0 Capacity Analysis Module: Vol/Sat: 0.00 0.09 0.00 0.00 0.15 0.00 0.24 0.00 0.38 0.00 0.00 0.00 Crit Volume: 0 265 588 0 Crit Moves: **** **** **** ******************************************************************************** Traffix 7.9.0215 (c) 2008 Dowling Assoc. Licensed to TJKM, PLEASANTON, CA ~~ ~ ~~~ ~~ Existing + Prj. Conditions Wed Apr 9, 2008 14:26:28 Page 12-1 Arroyo Vista Housing Redevelopment Traffic Impact Study Existing + Project Conditions AM -------------------------------------------------------------------------------- Level Of Service Computation Report 2000 HCM Unsignalized Method (Base Volume Alternative) ******************************************************************************** Intersection #11 Dougherty Road/ventura Drive Average Delay (sec/veh): 0.2 Worst Case Level Of Service: C[ 19.2] ******************************************************************************** Approach: North Bound South Bound East Bound West Bound Movement : L - T - R L - T - R L - T - R L - T - R ------------~---------------~~---------------~~---------------~~---------------I Control: Uncontrolled Uncontrolled Stop Sign Stop Sign Rights: Include Include Include Include Lanes : 1 0 2 0 0 0 0 1 1 0 0 0 0 0 1 0 0 0 0 0 Volume Module: Base Vol: 2 838 0 0 1679 3 0 0 24 0 0 0 Growth Adj: 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 Initial Bse: 2 838 0 0 1679 3 0 0 24 0 0 0 User Adj: 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 PHF Adj: 0.92 0.92 0.92 0.92 0.92 0.92 0.92 0.92 0.92 0.92 0.92 0.92 PHF Volume: 2 911 0 0 1825 3 0 0 26 0 0 0 Reduct Vol: 0 0 0 0 0 0 0 0 0 0 0 0 FinalVolume: 2 911 0 0 1825 3 0 0 26 0 0 0 Critical Gap Module: Critical Gp: 4.1 xxxx xxxxx xxxxx xxxx xxxxx xxxxx xxxx 6.9 xxxxx xxxx xxxxx Fo1lowUpTim: 2.2 xxxx xxxxx xxxxx xxxx xxxxx xxxxx xxxx 3.3 xxxxx xxxx xxxxx Capacity Module: Cnflict Vol: 1828 xxxx xxxxx xxxx xxxx xxxxx xxxx xxxx 914 xxxx xxxx xxxxx Potent Cap.: 339 xxxx xxxxx xxxx xxxx xxxxx xxxx xxxx 279 xxxx xxxx xxxxx Move Cap.: 339 xxxx xxxxx xxxx xxxx xxxxx xxxx xxxx 279 xxxx xxxx xxxxx Total Cap: xxxx xxxx xxxxx xxxx xxxx xxxxx 96 93 xxxxx 149 92 xxxxx Volume/Cap: 0.01 xxxx xxxx xxxx xxxx xxxx xxxx xxxx 0.09 xxxx xxxx xxxx Level Of Service Module: 2Way95thQ: 0.0 xxxx xxxxx xxxx xxxx xxxxx xxxx xxxx 0.3 xxxx xxxx xxxxx Control Del: 15.7 xxxx xxxxx xxxxx xxxx xxxxx xxxxx xxxx 19.2 xxxxx xxxx xxxxx LOS by Move: C * * * * * * * C Movement: LT - LTR - RT LT - LTR - RT LT - LTR - RT LT - LTR - RT Shared Cap.: xxxx xxxx xxxxx xxxx xxxx xxxxx xxxx xxxx xxxxx xxxx xxxx xxxxx SharedQueue:xxxxx xxxx xxxxx xxxxx xxxx xxxxx xxxxx xxxx xxxxx xxxxx xxxx xxxxx Shrd ConDel:xxxxx xxxx xxxxx xxxxx xxxx xxxxx xxxxx xxxx xxxxx xxxxx xxxx xxxxx Shared LOS: * * * * * * * ApproachDel: xxxxxx xxxxxx 19.2 xxxxxx ApproachLOS: * * C ******************************************************************************** Note: Queue reported is the number of cars per lane. Traffix 7.9.0215 (c) 2008 Dowling Assoc. Licensed to TJKM, PLEASANTON, CA Existing + Prj. Conditions Wed Apr 9, 2008 14:26:28 Page 13-1 Arroyo Vista Housing Redevelopment Traffic Impact Study Existing + Project Conditions AM -------------------------------------------------------------------------------- Level Of Service Computation Report 2000 HCM Unsignalized Method (Base Volume Alternative) ******************************************************************************** Intersection #12 Dougherty Road/N. Mariposa Drive ******************************************************************************** Average Delay (sec/veh): 0.0 Worst Case Level Of Service: A[ 0.0] ******************************************************************************** Approach: North Bound South Bound East Bound West Bound Movement : L - T - R L - T - R L - T - R L - T - R ------------~---------------~~---------------~~---------------~~---------------I Control: Uncontrolled Uncontrolled Stop Sign Stop Sign Rights: Include Include Include Include Lanes : 0 0 2 0 0 0 0 2 0 0 0 0 0 0 0 0 0 0 0 0 Volume Module: Base Vol: 0 840 0 0 1703 0 0 0 0 0 0 0 Growth Adj: 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 Initial Bse: 0 840 0 0 1703 0 0 0 0 0 0 0 User Adj: 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 PHF Adj: 0.98 0.98 0.98 0.98 0.98 0.98 0.98 0.98 0.98 0.98 0.98 0.98 PHF Volume: 0 857 0 0 1738 0 0 0 0 0 0 0 Reduct Vol: 0 0 0 0 0 0 0 0 0 0 0 0 FinalVolume: 0 857 0 0 1738 0 0 0 0 0 0 0 Critical Gap Module: Critical Gp:xxxxx xxxx xxxxx xxxxx xxxx xxxxx xxxxx xxxx xxxxx xxxxx xxxx xxxxx Fo1lowUpTim:xxxxx xxxx xxxxx xxxxx xxxx xxxxx xxxxx xxxx xxxxx xxxxx xxxx xxxxx Capacity Module: Cnflict Vol: xxxx xxxx xxxxx xxxx xxxx xxxxx xxxx xxxx xxxxx xxxx xxxx xxxxx Potent Cap.: xxxx xxxx xxxxx xxxx xxxx xxxxx xxxx xxxx xxxxx xxxx xxxx xxxxx Move Cap.: xxxx xxxx xxxxx xxxx xxxx xxxxx xxxx xxxx xxxxx xxxx xxxx xxxxx Total Cap: xxxx xxxx xxxxx xxxx xxxx xxxxx 108 104 xxxxx 210 104 xxxxx Volume/Cap: xxxx xxxx xxxx xxxx xxxx xxxx xxxx xxxx xxxx xxxx xxxx xxxx Level Of Service Module: 2Way95thQ: xxxx xxxx xxxxx xxxx xxxx xxxxx xxxx xxxx xxxxx xxxx xxxx xxxxx Control Del:xxxxx xxxx xxxxx xxxxx xxxx xxxxx xxxxx xxxx xxxxx xxxxx xxxx xxxxx LOS by Move: * * Movement: LT - LTR - RT LT - LTR - RT LT - LTR - RT LT - LTR - RT Shared Cap.: xxxx xxxx xxxxx xxxx xxxx xxxxx xxxx xxxx xxxxx xxxx xxxx xxxxx SharedQueue:xxxxx xxxx xxxxx xxxxx xxxx xxxxx xxxxx xxxx xxxxx xxxxx xxxx xxxxx Shrd ConDel:xxxxx xxxx xxxxx xxxxx xxxx xxxxx xxxxx xxxx xxxxx xxxxx xxxx xxxxx Shared LOS: * * ApproachDel: xxxxxx xxxxxx xxxxxx xxxxxx ApproachLOS: ******************************************************************************** Note: Queue reported is the number of cars per lane. ******************************************************************************** Traffix 7.9.0215 (c) 2008 Dowling Assoc. Licensed to TJKM, PLEASANTON, CA Existing + Prj. Conditions Wed Apr 9, 2008 14:26:28 Page 14-1 Arroyo Vista Housing Redevelopment Traffic Impact Study Existing + Project Conditions AM -------------------------------------------------------------------------------- Level Of Service Computation Report 2000 HCM Unsignalized Method (Base Volume Alternative) . ******************************************************************************** ~ Intersection #13 Dougherty Road/S. Mariposa Drive ******************************************************************************** Average Delay (sec/veh): 3.7 Worst Case Level Of Service: F[ 91.4] Approach: North Bound South Bound East Bound West Bound Movement : L - T - R L - T - R L - T - R L - T - R """~ ------------~---------------~I---------------~~---------------~~---------------~ Control: Uncontrolled Uncontrolled Stop Sign Stop Sign ~" Rights: Include Include Include Include Lanes : 1 0 2 0 0 0 0 1 1 0 0 0 1! 0 0 0 0 0 0 0 ------------~---------------I~---------------I---------------~~---------------~ Vo ume Mo u e: ffi. , Base Vol: 39 807 0 0 1698 5 33 0 66 0 0 0 Growth Adj: 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 ~~ Initial Bse: 39 807 0 0 1698 5 33 0 66 0 0 0 User Adj: 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 PHF Adj: 0.86 0.86 0.86 0.86 0.86 0.86 0.86 0.86 0.86 0.86 0.86 0.86 PHF Volume: 45 938 0 0 1974 6 38 0 77 0 0 0 ~; Reduct Vol: 0 0 0 0 0 0 0 0 0 0 0 0 FinalVolume: 45 938 0 0 1974 6 38 0 77 0 0 0 ------------~---------------~~---------------~I---------------~~---------------~ Critical Gap Module: Critical Gp: 4.1 xxxx xxxxx xxxxx xxxx xxxxx 6.8 6.5 6.9 xxxxx xxxx xxxxx a~ Fo1lowUpTim: 2.2 xxxx xxxxx xxxxx xxxx xxxxx 3.5 4.0 3.3 xxxxx xxxx xxxxx ~;~ Capacity Module: Cnflict Vol: 1980 xxxx xxxxx xxxx xxxx xxxxx 2537 3006 990 xxxx xxxx xxxxx Potent Cap.: 296 xxxx xxxxx xxxx xxxx xxxxx 23 14 249 xxxx xxxx xxxxx Move Cap.: 296 xxxx xxxxx xxxx xxxx xxxxx 20 12 249 xxxx xxxx xxxxx Total Cap: xxxx xxxx xxxxx xxxx xxxx xxxxx 77 75 xxxxx 87 49 xxxxx Volume/Cap: 0.15 xxxx xxxx xxxx xxxx xxxx 0.50 0.00 0.31 xxxx xxxx xxxx ""'" Level Of Service Module: '~' 2Way95thQ: 0.5 xxxx xxxxx xxxx xxxx xxxxx xxxx xxxx xxxxx xxxx xxxx xxxxx Control Del: 19.4 xxxx xxxxx xxxxx xxxx xxxxx xxxxx xxxx xxxxx xxxxx xxxx xxxxx LOS by Move: C * Movement: LT - LTR - RT LT - LTR - RT LT - LTR - RT LT - LTR - RT Shared Cap.: xxxx xxxx xxxxx xxxx xxxx xxxxx xxxx 143 xxxxx xxxx xxxx xxxxx SharedQueue:xxxxx xxxx xxxxx xxxxx xxxx xxxxx xxxxx 5.1 xxxxx xxxxx xxxx xxxxx ae~ Shrd ConDel:xxxxx xxxx xxxxx xxxxx xxxx xxxxx xxxxx-91.4 xxxxx xxxxx xxxx xxxxx Shared LOS: * * * * * * * F ApproachDel: xxxxxx xxxxxx 91.4 xxxxxx ApproachLOS: * * F ******************************************************************************** Note: Queue reported is the number of cars per lane. ******************************************************************************** Traffix 7.9.0215 (c) 2008 Dowling Assoc. Licensed to TJKM, PLEASANTON, CA M X61 ~ ~~ MITIG8 - Existing + Prj. Coaled Jun 18, 2008 10:07:46 Page 1-1 Arroyo Vista Housing Redevelopment Traffic Impact Study Existing + Project Conditions AM --------------------------------------------------------------------------------- Level Of Service Computation Report CCTALOS Method (Future Volume Alternative) ******************************************************************************** Intersection #13 Dougherty Road/S. Mariposa Drive ******************************************************************************** Cycle (sec): 100 Critical Vol./Cap.(X): 0.669 Loss Time (sec): 0 (Y+R=4.0 sec) Average Delay (sec/veh): xxxxxx Optimal Cycle: 69 Level Of Service: B ******************************************************************************** Approach: North Bound South Bound East Bound West Bound Movement : L - T - R L - T - R L - T - R L - T - R ------------~---------------I~---------------~I---------------~~---------------~ Control: Protected Protected Split Phase Split Phase Rights: Include Include Include Include Min. Green: 0 0 0 0 0 0 0 0 0 0 0 0 Lanes : 1 0 2 0 0 0 0 1 1 0 0 0 1! 0 0 0 0 0 0 0 ------------I---------------~---------------~I---------------~I---------------~ Volume Module: Base Vol: 39 807 0 0 1698 5 33 0 66 0 0 0 Growth Adj: 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 Initial Bse: 39 807 0 0 1698 5 33 0 66 0 0 0 Added Vol: 0 0 ~0 0 0 0 0 0 0 0 0 0 PasserByVOl: 0 0 0 0 0 0 0 0 0 0 0 0 Initial Fut: 39 807 0 0 1698 5 33 0 66 0 0 0 User Adj: 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 PHF Adj: 0.86 0.86 0.86 0.86 0.86 0.86 0.86 0.86 0.86 0.86 0.86 0.86 PHF Volume: 45 938 0 0 1974 6 38 0 77 0 0 0 Reduct Vol: 0 0 0 0 0 0 0 0 0 0 0 0 Reduced Vol: 45 938 0 0 1974 6 38 0 77 0 0 0 RTOR Reduct: 0 0 0 0 0 0 0 0 0 0 0 0 RTOR Vol: 45 938 0 0 1974 6 38 0 77 0 0 0 PCE Adj: 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 MLF Adj: 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 FinalVOlume: 45 938 0 0 1974 6 38 0 77 0 0 0 Saturation Flow Module: Sat/Lane: 1720 1720 1720 1720 1720 1720 1720 1720 1720 1720 1720 1720 Adjustment: 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 Lanes: 1.00 2.00' 0.00 0.00 1.99 0.01 0.33 0.00 0.67 0.00 0.00 0.00 Final Sat.: 1720 3440 0 0 3430 10 573 0 1147 0 0 0 Capacity Analysis Module: Vol/Sat: 0.03 0.27 0.00 0.00 0.58 0.58 0.07 0.00 0.07 0.00 0.00 0.00 Crit Volume: 45 990 115 0 Crit Moves: **** **** **** ******************************************************************************** Traffix 7.9.0215 (c) 2008 Dowling Assoc. Licensed to TJKM, PLEASANTON, CA Existing + Prj. Conditions Wed Apr 9, 2008 14:26:28 Page 15-1 Arroyo Vista Housing Redevelopment Traffic Impact Study Existing + Project Conditions AM -------------------------------------------------------------------------------- Level Of Service Computation Report 2000 HCM Unsignalized Method (Base Volume Alternative) ******************************************************************************** Intersection #14 Dougherty Road/Monterey Drive ******************************************************************************** Average Delay (sec/veh): 0.2 Worst Case Level Of Service: C[ 20.6] ******************************************************************************** Approach: North Bound South Bound East Bound West Bound Movement : L - T - R L - T - R L - T - R L - T - R ------------~---------------~---------------~I---------------II---------------~ Control: Uncontrolled Uncontrolled Stop Sign Stop Sign Rights: Include Include Include Include Lanes : 0 0 2 0 0 0 0 1 1 0 0 0 0 0 1 0 0 0 0 0 Volume Module: Base Vol: 0 846 0 0 1762 2 0 0 24 0 0 0 Growth Adj: 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 Initial Bse: 0 846 0 0 1762 2 0 0 24 0 0 0 User Adj: 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 PHF Adj: 0.91 0.91 0.91 0.91 0.91 0.91 0.91 0.91 0.91 0.91 0.91 0.91 PHF Volume: 0 930 0 0 1936 2 0 0 26 0 0 0 Reduct Vol: 0 0 0 0 0 0 0 0 0 0 0 0 FinalVOlume: 0 930 0 0 1936 2 0 0 26 0 0 0 ---------------------------~~---------------~I---------------~~---------------~ Critical Gap Module: Critical Gp:xxxxx xxxx xxxxx xxxxx xxxx xxxxx xxxxx xxxx 6.9 xxxxx xxxx xxxxx Fo1lowUpTim:xxxxx xxxx xxxxx xxxxx xxxx xxxxx xxxxx xxxx 3.3 xxxxx xxxx xxxxx Capacity Module: Cnflict Vol: xxxx xxxx xxxxx xxxx xxxx xxxxx xxxx xxxx 969 xxxx xxxx xxxxx Potent Cap.: xxxx xxxx xxxxx xxxx xxxx xxxxx xxxx xxxx 257 xxxx xxxx xxxxx Move Cap.: xxxx xxxx xxxxx xxxx xxxx xxxxx xxxx xxxx 257 xxxx xxxx xxxxx Total Cap: xxxx xxxx xxxxx xxxx xxxx xxxxx 85 84 xxxxx 140 84 xxxxx Volume/Cap: xxxx xxxx xxxx xxxx xxxx xxxx xxxx xxxx 0.10 xxxx xxxx xxxx Level Of Service Module: 2Way95thQ: xxxx xxxx xxxxx xxxx xxxx xxxxx xxxx xxxx 0.3 xxxx xxxx xxxxx Control Del:xxxxx xxxx xxxxx xxxxx xxxx xxxxx xxxxx xxxx 20.6 xxxxx xxxx xxxxx LOS by Move : * * * * * * * * C Movement: LT - LTR - RT LT - LTR - RT LT - LTR - RT LT - LTR - RT Shared Cap.: xxxx xxxx xxxxx xxxx xxxx xxxxx xxxx xxxx xxxxx xxxx xxxx xxxxx SharedQueue:xxxxx xxxx xxxxx xxxxx xxxx xxxxx xxxxx xxxx xxxxx xxxxx xxxx xxxxx Shrd ConDel:xxxxx xxxx xxxxx xxxxx xxxx xxxxx xxxxx xxxx xxxxx xxxxx xxxx xxxxx Shared LOS: * * ApproachDel: xxxxxx xxxxxx 20.6 xxxxxx ApproachLOS: * * C Note: Queue reported is the number of cars per lane. ******************************************************************************** Traffix 7.9.0215 (c) 2008 Dowling Assoc. Licensed to TJKM, PLEASANTON, CA ~ 63 6~ Existing + Prj. Conditions Wed Apr 9, 2008 14:38:39 Page 1-1 -------------------------------------------------------------------------------- Arroyo Vista Housing Redevelopment Traffic Impact Study Existing + Project Conditions PM Scenario Report Scenario: Existing + Prj. Conditions PM Command: Volume: Geometry: Impact Fee: Trip Generation: Trip Distribution Paths: Routes: Configuration: Existing + Project PM E+P PM Capital Improvement Project Default Impact Fee Default Trip Generation Default Trip Distribution Default Path Default Route Existing PHF ~V Traffix 7.9.0215 (c) 2008 Dowling Assoc. Licensed to TJKM, PLEASANTON, CA 56~ of Cpl Existing + Prj. Conditions Wed Apr 9, 2008 14:38:39 Page 2-1 Arroyo Vista Housing Redevelopment Traffic Impact Study Existing + Project Conditions PM -------------------------------------------------------------------------------- Level Of Service Computation Report CCTALOS Method (Future Volume Alternative) ******************************************************************************** Intersection #1 Dougherty Road/Amador Valley Boulevard ******************************************************************************** Cycle (sec): 60 Critical Vol./Cap.(X): 0.751 Loss Time (sec): 9 (Y+R=4.O sec) Average Delay (sec/veh): xxxxxx Optimal Cycle: 75 Level Of Service: C ******************************************************************************** Approach: North Bound South Bound East Bound West Bound Movement : L - T - R L - T - R L - T - R L - T - R ------------~---------------I~---------------I~---------------~~---------------~ Control: Protected Protected Split Phase Split Phase Rights: Include Include Include Include Min. Green: 0 0 0 0 0 0 0 0 0 0 0 0 Lanes : 1 0 2 0 0 0 0 1 1 0 1 0 0 0 1 0 0 0 0 0 Volume Module: Base Vol: 471 1266 0 0 701 126 330 0 312 0 0 0 Growth Adj: 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 Initial Bse: 471 1266 0 0 701 126 330 0 312 0 0 0 Added Vol: 0 0 0 0 0 0 0 0 0 0 0 0 PasserByVOl: 0 0 0 0 0 0 0 0 0 0 0 0 Initial Fut: 471 1266 0 0 701 126 330 0 312 0 0 0 User Adj: 1.001.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 PHF Adj: 0.94 0.94 0.94 0.94 0.94 0.94 0.94 0.94 0.94 0.94 0.94 0.94 PHF Volume: 501 1347 0 0 746 134 351 0 332 0 0 0 Reduct Vol: 0 0 0 0 0 0 0 0 0 0 0 0 Reduced Vol: 501 1347 0 0 746 134 351 0 332 0 0 0 RTOR Reduct: 0 0 0 0 0 0 0 0 332 0 0 0 RTOR Vol: 501 1347 0 0 746 134 351 0 0 0 0 0 PCE Adj: 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 MLF Adj: 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 FinalVolume: 501 1347 0 0 746 134 351 0 0 0 0 0 Saturation Flow Module: Sat/Lane: 1720 1720 1720 1720 1720 1720 1720 1720 1720 1720 1720 1720 Adjustment: 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 Lanes: 1.00 2.00 0.00 0.00 1.70 0.30 1.00 0.00 1.00 0.00 0.00 0.00 Final Sat.: 1720 3440 0 0 2916 524 1720 0 1720 0 0 0 Capacity Analysis Module: Vol/Sat: 0.29 0.39 0.00 0.00 0.26 0.26 0.20 0.00 0.00 0.00 0.00 0.00 Crit Volume: 501 440 351 0 Crit Moves: **** **** **** ******************************************************************************** Traffix 7.9.0215 (c) 2008 Dowling Assoc. Licensed to TJKM, PLEASANTON, CA e,ua ~- ~ ~~ ~ o, Existing + Prj. Conditions Wed Apr 9, 2008 14:38:39 Page 3-1 Arroyo Vista Housing Redevelopment Traffic Impact Study Existing + Project Conditions PM -------------------------------------------------------------------------------- Level Of Service Computation Report CCTALOS Method (Future Volume Alternative) *********************************,k********************************************** Intersection #2 Dougherty Road/Scarlett Drive ******************************************************************************** Cycle (sec): 80 Critical Vol./Cap.(X): 0.609 Loss Time (sec): 9 (Y+R=4.0 sec) Average Delay (sec/veh): xxxxxx Optimal Cycle: 48 Level Of Service: B ******************************************************************************** Approach: North Bound South Bound East Bound West Bound Movement : L - T - R L - T - R L - T - R L - T - R Control: Protected Protected Permitted Permitted Rights: Include Include Include Include Min. Green: 0 0 0 0 0 0 0 0 0 0 0 0 Lanes : 1 0 2 0 1 1 0 2 0 1 0 0 1! 0 0 1 0 0 1 0 Volume Module: Base Vol: 61 1803 18 2 1032 19 6 1 34 71 1 16 Growth Adj: 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 Initial Bse: 61 1803 18 2 1032 19 6 1 34 71 1 16 Added Vol: 0 0 0 0 0 0 0 0 0 0 0 0 PasserByVol: 0 0 0 0 0 0 0 0 0 0 0 0 Initial Fut: 61 1803 18 2 1032 19 6 1 34 71 1 16 User Adj: 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 PHF Adj: 0.97 0.97 0.97 0.97 0.97 0.97 0.97 0.97 0.97 0.97 0.97 0.97 PHF Volume: 63 1859 19 2 1064 20 6 1 35 73 1 16 Reduct Vol: 0 0 0 0 0 0 0 0 0 0 0 0 Reduced Vol: 63 1859 19 2 1064 20 6 1 35 73 1 16 RTOR Reduct: 0 0 19 0 0 6 0 0 0 0 0 0 RTOR Vol: 63 1859 0 2 1064 13 6 1 35 73 1 16 PCE Adj: 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 MLF Adj: 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 FinalVolume: 63 1859 0 2 1064 13 6 1 35 73 1 16 ------------~---------------~~---------------~I---------------II---------------~ Saturation Flow Module: Sat/Lane: 1720 1720 1720 1720 1720 1720 1720 1720 1720 1720 1720 1720 Adjustment: 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 Lanes: 1.00 2.00 1.00 1.00 2.00 1.00 0.15 0.02 0.83 1.00 0.06 0.94 Final Sat.: 1720 3440 1720 1720 3440 1720 252 42 1426 1720 101 1619 Capacity Analysis Module: Vol/Sat: 0.04 0.54 0.00 0.00 0.31 0.01 0.02 0.02 0.02 0.04 0.01 0.01 Crit Volume: 929 2 42 73 Crit Moves: **** **** **** **** ******************************************************************************** Traffix 7.9.0215 (c) 2008 Dowling Assoc. Licensed to TJKM, PLEASANTON, CA ~~~ ~~ ~~~ Existing + Prj. Conditions Wed Apr 9, 2008 14:38:39 Page 4-1 Arroyo Vista Housing Redevelopment Traffic Impact Study Existing + Project Conditions PM -------------------------------------------------------------------------------- Level Of Service Computation Report CCTALOS Method (Future Volume Alternative) ******************************************************************************** Intersection #3 Dougherty Road/Sierra Lane ******************************************************************************** Cycle (sec): 60 Critical Vol./Cap.(X): 0.636 Loss Time (sec): 12 (Y+R=4.0 sec) Average Delay (sec/veh): xxxxxx Optimal Cycle: 63 Level Of Service: B ******************************************************************************** Approach: North Bound South Bound East Bound West Bound Movement : L - T - R L - T - R L - T - R L - T - R ------------~---------------~I---------------~~---------------~---------------I Control: Protected Protected Protected Protected Rights: Include Include Include Include Min. Green: 0 0 0 0 0 0 0 0 0 0 0 0 Lanes : 1 0 2 0 1 1 0 2 0 1 1 0 1 0 1 1 0 0 1 0 ------------~---------------~~---------------~I---------------~~---------------~ Volume Module: Base Vol: 48 1756 14 6 986 56 88 4 106 19 6 9 Growth Adj: 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 Initial Bse: 48 1756 14 6 986 56 88 4 106 19 6 9 Added Vol: 0 0 0 0 0 0 0 0 0 0 0 0 PasserByVol: 0 0 0 0 0 0 0 0 0 0 0 0 Initial Fut: 48 1756 14 6 986 56 88 4 106 19 6 9 User Adj: 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 PHF Adj: 0.94 0.94 0.94 0.94 0.94 0.94 0.94 0.94 0.94 0.94 0.94 0.94 PHF Volume: 51 1868 15 6 1049 60 94 4 113 20 6 10 Reduct Vol: 0 0 0 0 0 0 0 0 0 0 0 0 Reduced Vol: 51 1868 15 6 1049 60 94 4 113 20 6 10 RTOR Reduct: 0 0 15 0 0 60 0 0 51 0 0 0 RTOR Vol: 51 1868 0 6 1049 0 94 4 62 20 6 10 PCE Adj: 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 MLF Adj: 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 FinalVolume: 51 1868 0 6 1049 0 94 4 62 20 6 10 Saturation Flow Module: Sat/Lane: 1650 1650 1650 1650 1650 1650 1650 1650 1650 1650 1650 1650 Adjustment: 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 Lanes: 1.00 2.00 1.00 1.00 2.00 1.00 1.00 1.00 1.00 1.00 0.40 0.60 Final Sat.: 1650 3300 1650 1650 3300 1650 1650 1650 1650 1650 660 990 Capacity Analysis Module: Vol/Sat: 0.03 0.57 0.00 0.00 0:32 0.00 0.06 0.00 0.04 0.01 0.01 0.01 Crit Volume: 934 6 94 16 Crit Moves• **** **** **** **** ******************************************************************************** Traffix 7.9.0215 (c) 2008 Dowling Assoc. Licensed to TJKM, PLEASANTON, CA ~ ~ ~ ~ ~ ~ Existing + Prj. Conditions Wed Apr 9, 2008 14:38:39 Page 5-1 Arroyo Vista Housing Redevelopment Traffic Impact Study Existing + Project Conditions PM Level Of Service Computation Report CCTALOS Method (Future Volume Alternative) ******************************************************************************** Intersection #4 Dougherty Road/Dublin Boulevard ******************************************************************************** Cycle (sec): 150 Critical Vol./Cap.(X): 0.630 Loss Time (sec): 12 (Y+R=4.0 sec) Average Delay (sec/veh): xxxxxx Optimal Cycle: 62 Level Of Service: B ******************************************************************************** Approach: North Bound South Bound East Bound west Bound Movement : L - T - R L - T - R L - T - R L - T - R ------------I---------------~~---------------~---------------~~---------------~ Control: Protected Protected Protected Protected Rights: Include Include Ovl Include Min. Green: 0 0 0 0 0 0 0 0 0 0 0 0 Lanes : 3 0 3 0 2 2 0 3 1 0 2 0 3 0 2 3 0 3 0 1 ------------~---------------~~---------------~~---------------~~---------------I Volume Module: Base Vol: 569 1189 391 393 677 75 107 853 528 302 646 404 Growth Adj: 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 Initial Bse: 569 1189 391 393 677 75 107 853 528 302 646 404 Added Vol: 0 0 0 0 0 0 0 0 0 0 0 0 PasserByVol: 0 0 0 0 0 0 0 0 0 0 0 0 Initial Fut: 569 1189 391 393 677 75 107 853 528 302 646 404 User Adj: 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 PHF Adj: 0.94 0.94 0.94 0.94 0.94 0.94 0.94 0.94 0.94 0.94 0.94 0.94 PHF Volume: 605 1265 416 418 720 80 114 907 562 321 687 430 Reduct Vol: 0 0 0 0 0 0 0 0 0 0 0 0 Reduced Vol: 605 1265 416 418 720 BO 114 907 562 321 687 430 RTOR Reduct: 0 0 123 0 0 0 0 0 232 0 0 230 RTOR Vol: 605 1265 293 418 720 80 114 907 330 321 687 200 PCE Adj: 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 MLF Adj: 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 FinalVolume: 605 1265 293 418 720 80 114 907 330 321 687 200 ------------~---------------~I---------------~I---------------~---------------~ Saturation Flow Module: Sat/Lane: 1650 1650 1650 1650 1650 1650 1650 1650 1650 1650 1650 1650 Adjustment: 0.87 1.10 1.00 0.91 1.00 1.00 0.91 1.00 0.91 0.87 1.00 1.00 Lanes: 3.00 3.00 2.00 2.00 3.60 0.40 2.00 3.00 2.00 3.00 3.00 1.00 Final Sat.: 4307 5445 3300 3000 5942 658 3000 4950 3000 4307 4950 1650 ------------~---------------~---------------~~---------------~I---------------~ Capacity Analysis Module: Vol/Sat: 0.14 0.23 0.09 0.14 0.12 0.12 0.04 0.18 0.11 0.07 0.14 0.12 Crit Volume: 422 209 302 107 Crit Moves: **** **** **** **** ******************************************************************************** Traffix 7.9.0215 (c) 2008 Dowling Assoc. Licensed to TJKM, PLEASANTON, CA ~~ 6 b~ ~~ I Existing + Prj. Conditions Wed Apr 9, 2008 14:38:39. Page 6-1 Arroyo Vista Housing Redevelopment Traffic Impact Study Existing + Project Conditions PM -------------------------------------------------------------------------------- Level Of Service Computation Report CCTALOS Method (Future Volume Alternative) ******************************************************************************** Intersection #5 Dougherty Road/Westbound I-580 off-ramp ******************************************************************************** Cycle (sec): 60 Critical Vol./Cap.(X): 0.559 Loss Time (sec): 6 (Y+R=4.0 sec) Average Delay (sec/veh) xxxxxx Optimal Cycle: 33 Level Of Service: A ******************************************************************************** Approach: North Bound South Bound East Bound West Bound Movement : L - T - R L - T - R L - T - R L - T - R ------------I---------------~~---------------I~---------------~~---------------~ Control: Protected Protected Split Phase Split Phase Rights: Include Ignore Include Include Min. Green: 0 0 0 0 0 0 0 0 0 0 0 0 Lanes : 0 0 3 0 0 0 0 2 0 0 0 0 0 0 0 2 0 0 0 2 Volume Module: Base Vol: 0 1570 0 0 1056 0 0 0 0 251 0 579 Growth Adj: 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 Initial Bse: 0 1570 0 0 1056 0 0 0 0 251 0 579 Added Vol: 0 0 0 0 0 0 0 0 0 0 0 0 PasserByVol: 0 0 0 0 0 0 0 0 0 0 0 0 Initial Fut: 0 1570 0 0 1056 0 0 0 0 251 0 579 User Adj: 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 PHF Adj: 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 0.88 PHF Volume: 0 1784 0 0 1200 0 0 0 0 285 0 658 Reduct Vol: 0 0 0 0 0 0 0 0 0 0 0 0 Reduced Vol: 0 1784 0 0 1200 0 0 0 0 285 0 658 RTOR Reduct: 0 0 0 0 0 0 0 0 0 0 0 0 RTOR Vol: 0 1784 0 0 1200 0 0 0 0 285 0 658 PCE Adj: 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 MLF Adj: 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 FinalVOlume: 0 1784 0 0 1200 0 0 0 0 285 0 658 Saturation Flow Module: Sat/Lane: 1720 1720 1720 1720 1720 1720 1720 1720 1720 1720 1720 1720 Adjustment: 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 0.91 1.00 0.91 Lanes: 0.00 3.00 0.00 0.00 2.00 0.00 0.00 0.00 0.00 2.00 0.00 2.00 Final Sat.: 0 5160 0 0 3440 0 0 0 0 3127 0 3127 ------------~---------------~I---------------~~---------------~~---------------~ Capacity Analysis Module: Vol/Sat: 0.00 0.35 0.00 0.00 0.35 0.00 0.00 0.00 0.00 0.09 0.00 0.21 Crit Volume: 0 600 0 329 Crit Moves: **** **** **** ******************************************************************************** Traffix 7.9.0215 (c) 2008 Dowling Assoc. Licensed to TJKM, PLEASANTON, CA +~* ~ ~ ~~ ~~~ Existing + Prj. Conditions Wed Apr 9, 2008 14:38:39 Page 7-1 Arroyo Vista Housing Redevelopment Traffic Impact Study Existing + Project Conditions PM Level Of Service Computation Report CCTALOS Method (Future Volume Alternative) ******************************************************************************** Intersection #6 Hopyard Road/Eastbound I-580 off-ramp ******************************************************************************** Cycle (sec): 60 Critical Vol./Cap.(X): 0.714 Loss Time (sec): 6 (Y+R=4.0 sec) Average Delay (sec/veh): xxxxxx Optimal Cycle: 50 Level Of Service: C ******************************************************************************** Approach: North Bound South Bound East Bound West Bound Movement : L - T - R L - T - R L - T - R L - T - R ------------~---------------~~---------------II---------------I---------------I Control: Protected Protected Split Phase Split Phase Rights: WideBypass Ignore Include Include Min. Green: 0 0 0 0 0 0 0 0 0 0 0 0 Lanes : 0 0 3 0 0 0 0~ 3 0 0 2 0 0 0 2 0 0 0 0 0 ------------~---------------~I-----------~---~~---------------~~---------------~ Volume Module: Base Vol: 0 1822 0 0 1053 0 839 0 995 0 0 0 Growth Adj: 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 Initial Bse: 0 1822 0 0 1053 0 839 0 995 0 0 0 Added Vol: 0 0 0 0 0 0 0 0 0 0 0 0 PasserByVOl: 0 0 0 0 0 0 0 0 0 0 0 0 Initial Fut: 0 1822 0 0 1053 0 839 0 995 0 0 0 User Adj: 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 PHF Adj: 0.94 0.94 0.94 0.94 0.94 0.94 0.94 0.94 0.94 0.94 0.94 0.94 PHF Volume: 0 1938 0 0 1120 0 893 0 1059 0 0 0 Reduct Vol: 0 0 0 0 0 0 0 0 0 0 0 0 Reduced Vol: 0 1938 0 0 1120 0 893 0 1059 0 0 0 RTOR Reduct: 0 0 0 0 0 0 0 0 0 0 0 0 RTOR Vol: 0 1938 0 0 1120 0 893 0 1059 0 0 0 PCE Adj: 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 MLF Adj: 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 FinalVOlume: 0 1938 0 0 1120 0 893 0 1059 0 0 0 ------------~---------------~~---------------I~---------------~~---------------~ Saturation Flow Module: Sat/Lane: 1720 1720 1720 1720 1720 1720 1720 1720 1720 1720 1720 1720 Adjustment: 1.00 1.00 1.00 1.00 1.00 1.00 0.91 1.00 0.91 1.00 1.00 1.00 Lanes: 0.00 3.00 0.00 0.00 3.00 0.00 2.00 0.00 2.00 0.00 0.00 0.00 Final Sat.: 0 5160 0 0 5160 0 3127 0 3127 0 0 0 ------------~--------------'-~---------------~~---------------~~---------------I Capacity Analysis Module: Vol/Sat: 0.00 0.38 0.00 0.00 0.22 0.00 0.29 0.00 0.34 0.00 0.00 0.00 Crit Volume: 646 0 529 0 Crit Moves: **** **** **** Traffix 7.9.0215 (c) 2008 Dowling Assoc. Licensed to TJKM, PLEASANTON, CA Existing + Prj. Conditions Wed Apr 9, 2008 14:38:39 Page 8-1 .Arroyo Vista Housing Redevelopment Traffic Impact Study Existing + Project Conditions PM -------------------------------------------------------------------------------- Level Of Service Computation Report CCTALOS Method (Future Volume Alternative) ******************************************************************************** Intersection #7 Dublin Boulevard/Scarlett Drive ******************************************************************************** Cycle (sec): 100 Critical Vol./Cap.(X): 0.404 Loss Time (sec): 12 (Y+R=4.0 sec) Average Delay (sec/veh): xxxxxx Optimal Cycle: 38 Level Of Service: A ******************************************************************************** Approach: North Bound South Bound East Bound West Bound Movement : L - T - R L - T - R L - T - R L - T - R Control: Protected Protected Protected Protected Rights: Include Include Include Include Min. Green: 0 0 0 0 0 0 0 0 0 0 0 0 Lanes : 1 0 0 0 1 1 0 0 1 0 1 0 3 0 1 1 0 3 0 0 ------------I---------------~~---------------~~---------------I~---------------I Volume Module: Base Vol: 110 0 39 3 0 0 10 1528 13 20 1319 0 Growth Adj: 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 Initial Bse: 110 0 39 3 0 0 10 1528 13 20 1319 0 Added Vol: 0 0 0 0 0 0 0 0 0 0 0 0 PasserByVol: 0 0 0 0 0 0 0 0 0 0 0 0 Initial Fut: 110 0 39 3 0 0 10 1528 13 20 1319 0 User Adj: 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 PHF Adj: 0.96 0.96 0.96 0.96 0.96 0.96 0.96 0.96 0.96 0.96 0.96 0.96 PHF Volume: 115 0 41 3 0 0 10 1592 14 21 1374 0 Reduct Vol: 0 0 0 0 0 0 0 0 0 0 0 0 Reduced Vol: 115 0 41 3 0 0 10 1592 14 21 1374 0 RTOR Reduct: 0 0 21 0 0 0 0 0 14 0 0 0 RTOR Vol: 115 0 20 3 0 0 10 1592 0 21 1374 0 PCE Adj: 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 MLF Adj: 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 FinalVolume: 115 0 20 3 0 0 10 1592 0 21 1374 0 Saturation Flow Module: Sat/Lane: 1650 1650 1650 1650 1650 1650 1650 1650 1650 1650 1650 1650 Adjustment: 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 Lanes: 1.00 0.00 1.00 1.00 1.00 0.00 1.00 3.00 1.00 1.00 3.00 0.00 Final Sat.: 1650 0 1650 1650 1650 0 1650 4950 1650 1650 4950 0 ------------~---------------II---------------~I---------------~~---------------~ Capacity Analysis Module: Vol/Sat: 0.07 0.00 0.01 0.00 0.00 0.00 0.01 0.32 0.00 0.01 0.28 0.00 Crit Volume: 115 0 531 21 Crit Moves: **** **** **** **** ******************************************************************************** Traffix 7.9.0215 (c) 2008 Dowling Assoc. Licensed to TJKM, PLEASANTON, CA s~~ ~ ~~ Existing + Prj. Conditions Wed Apr 9, 2008 14:38:40 Page 9-1 Arroyo Vista Housing Redevelopment Traffic Impact Study Existing + Project Conditions PM -------------------------------------------------------------------------------- Level Of Service Computation Report CCTALOS Method (Future Volume Alternative) Intersection #8 Hacienda Drive/Dublin Boulevard ******************************************************************************** Cycle (sec): 90 Critical Vol./Cap.(X): 0.508 Loss Time (sec): 12 (Y+R=4.0 sec) Average Delay (sec/veh): xxxxxx Optimal Cycle: 46 Level Of Service: A ******************************************************************************** Approach: North Bound South Bound East Bound West Bound Movement : L - T - R L - T - R L - T - R L - T - R ------------I---------------~~---------------~~---------------~~---------------~ Control: Protected Protected Protected Protected Rights: Include Include Ovl Include Min. Green: 0 0 0 0 0 0 0 0 0 0 0 0 Lanes : 3 0 3 0 2 2 0 3 1 0 2 0 3 0 2 3 0 3 0 1 Volume Module: Base Vol: 507 648 589 51 440 83 239 1114 489 196 517 14 Growth Adj: 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 Initial Bse: 507 648 589 51 440 83 239 1114 489 196 517 14 Added Vol: 0 0 0 0 0 0 0 0 0 0 0 0 PasserByVol: 0 0 0 0 0 0 0 0 0 0 0 0 Initial Fut: 507 648 589 51 440 83 239 1114 489 196 517 14 User Adj: 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 PHF Adj: 0.92 0.92 0.92 0.92 0.92 0.92 0.92 0.92 0.92 0.92 0.92 0.92 PHF Volume: 551 704 640 55 478 90 260 1211 532 213 562 15 Reduct Vol: 0 0 0 0 0 0 0 0 0 0 0 0 Reduced Vol: 551 704 640 55 478 90 260 1211 532 213 562 15 RTOR Reduct: 0 0 82 0 0 0 0 0 211 0 0 15 RTOR Vol: 551 704 559 55 478 90 260 1211 320 213 562 0 PCE Adj: 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 MLF Adj: 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 FinalVOlume: 551 704 559 55 478 90 260 1211 320 213 562 0 ------------~---------------~~---------------~I---------------~~---------------~ Saturation Flow Module: Sat/Lane: 1650 1650 1650 1650 1650 1650 1650 1650 1650 1650 1650 1650 Adjustment: 0.87 1.00 0.91 0.91 1.00 1.00 0.91 1.00 0.91 0.87 1.00 1.00, Lanes: 3.00 3.00 2.00 2.00 3.37 0.63 2.00 3.00 2.00 3.00 3.00 1.00 Final Sat.: 4307 4950 3000 3000 5553 1047 3000 4950 3000 4307 4950 1650 Capacity Analysis Module: Vol/Sat: 0.13 0.14 0.19 0.02 0.09 0.09 0.09 0.24 0.11 0.05 0.11 0.00 Crit Volume: 184 142 404 71 Crit Moves: **** **** **** **** ******************************************************************************** Traffix 7.9.0215 (c) 2008 Dowling Assoc. Licensed to TJKM, PLEASANTON, CA ~~~ ~~ Existing + Prj. Conditions Wed Apr 9, 2008 14:38:40 Page 10-1 Arroyo Vista Housing Redevelopment Traffic Impact Study Existing + Project Conditions PM -------------------------------------------------------------------------------- Level Of Service Computation Report CCTALOS Method (Future Volume Alternative) ******************************************************************************** Intersection #9 Hacienda Drive/Westbound I-580 off-ramp ******************************************************************************** Cycle (sec): 55 Critical Vol./Cap.(X): 0.444 Loss Time (sec): 6 (Y+R=4.0 sec) Average Delay (sec/veh): xxxxxx Optimal Cycle: 26 Level Of Service: A ******************************************************************************** Approach: North Bound South Bound East Bound West Bound Movement : L - T - R L - T - R L - T - R L - T - R ------------~---------------I~---------------II---------------~I---------------I Control: Protected Protected Split Phase Split Phase Rights: WideBypass Ignore Include Include Min. Green: 0 0 0 0 0 0 0 0 0 0 0 0 Lanes : 0 0 3 0 0 0 0 3 0 0 0 0 0 0 0 2 0 0 0 2 Volume Module: Base Vol: 0 1564 0 0 593 0 0 0 0 304 0 414 Growth Adj: 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 Initial Bse: 0 1564 0 0 593 0 0 0 0 304 0 414 Added Vol: 0 0 0 0 0 0 0 0 0 0 0 0 PasserByVol: 0 0 0 0 0 0 0 0 0 0 0 0 Initial Fut: 0 1564 0 0 593 0 0 0 0 304 0 414 User Adj: 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 PHF Adj: 0.98 0.98 0.98 0.98 0.98 0.98 0.98 0.98 0.98 0.98 0.98 0.98 PHF Volume: 0 1596 0 0 605 0 0 0 0 310 0 422 Reduct Vol: 0 0 0 0 0 0 0 0 0 0 0 0 Reduced Vol: 0 1596 0 0 605 0 0 0 0 310 0 422 RTOR Reduct: 0 0 0 0 0 0 0 0 0 0 0 0 RTOR Vol: 0 1596 0 0 605 0 0 0 0 310 0 422 PCE Adj: 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 MLF Adj: 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 FinalVolume: 0 1596 0 0 605 0 0 0 0 310 0 422 Saturation Flow Module: Sat/Lane: 1720 1720 1720 1720 1720 1720 1720 1720 1720 1720 1720 1720 Adjustment: 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 0.91 1.00 0.91 Lanes: -0.00 3.00 0.00 0.00 3.00 0.00 0.00 0.00 0.00 2.00 0.00 2.00 Final Sat.: 0 5160 0 0 5160 0 0 0 0 3127 0 3127 Capacity Analysis Module: Vol/Sat: 0.00 0.31 0.00 0.00 0.12 0.00 0.00 0.00 0.00 0.10 0.00 0.14 Crit Volume: 532 0 0 211 Crit Moves: **** **** **** ******************************************************************************** Traffix 7.9.0215 (c) 2008 Dowling Assoc. Licensed to TJKM, PLEASANTON, CA E.. wrr ~~~ ~ poi Existing + Prj. Conditions Wed Apr 9, 2008 14:38:40 Page 11-1 Arroyo Vista Housing Redevelopment Traffic Impact Study Existing + Project Conditions PM -------------------------------------------------------------------------------- Level Of Service Computation Report CCTALOS Method (Future Volume Alternative) ******************************************************************************** Intersection #10 Hacienda Drive/Eastbound I-580 off-ramp ******************************************************************************** Cycle (sec): 55 Critical Vol./Cap.(X): 0.533 Loss Time (sec): 6 (Y+R=4.0 sec) Average Delay (sec/veh): xxxxxx Optimal Cycle: 31 Level Of Service: A ******************************************************************************** Approach: North Bound South Bound East Bound West Bound Movement : L - T - R L - T - R L - T - R L - T - R ------------I---------------~~---------------~---------------~~---------------I Control: Protected Protected Split Phase Split Phase Rights: Ignore WideBypass Include Include Min. Green: 0 0 0 0 0 0 0 0 0 0 0 0 Lanes: 0 0 3 0 0 0 0 3 0 0 2 0 0 0 2 0 0 0 0 0 Volume Module: Base Vol: 0 1797 0 0 636 0 596 0 583 0 0 0 Growth Adj: 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 Initial Bse: 0 1797 0 0 636 0 596 0 583 0 0 0 Added Vol: 0 0 0 0 0 0 0 0 0 0 0 0 PasserByVol: 0 0 0 0 0 0 0 0 0 0 0 0 Initial Fut: 0 1797 0 0 636 0 596 0 583 0 0 0 User Adj: 0.97 0.97 0.97 0.97 0.97 0.97 0.97 0.97 0.97 0.97 0.97 0.97 PHF Adj: 0.98 0.98 0.98 0.98 0.98 0.98 0.98 0.98 0.98 0.98 0.98 0.98 PHF Volume: 0 1779 0 0 630 0 590 0 577 0 0 0 Reduct Vol: 0 0 0 0 0 0 0 0 0 0 0 0 Reduced Vol: 0 1779 0 0 630 0 590 0 577 0 0 0 RTOR Reduct: 0 0 0 0 0 0 0 0 0 0 0 0 RTOR Vol: 0 1779 0 0 630 0 590 0 577 0 0 0 PCE Adj: 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 MLF Adj: 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 FinalVOlume: 0 1779 0 0 630 0 590 0 577 0 0 0 Saturation Flow Module: Sat/Lane: 1720 1720 1720 1720 1720 1720 1720 1720 1720 1720 1720 1720 Adjustment: 1.00 1.00 1.00 1.00 1.00 1.00 0.91 1.00 0.91 1.00 1.00 1.00 Lanes: 0.00 3.00 0.00 0.00 3.00 0.00 2.00 0.00 2.00 0.00 0.00 0.00 Final Sat.: 0 5160 0 0 5160 0 3127 0 3127 0 0 0 ------------~---------------~~---------------II---------------~~---------------~ Capacity Analysis Module: Vol/Sat: 0.00 0.34 0.00 0.00 0.12 0.00 0.19 0.00 0.18 0.00 0.00 0.00 Crit Volume: 593 0 295 0 Crit Moves: **** **** **** ******************************************************************************** Traffix 7.9.0215 (c) 2008 Dowling Assoc. Licensed to TJICM, PLEASANTON, CA ~~k~~o~ Existing + Prj. Conditions Wed Apr 9, 2008 14:38:40 Page 12-1 Arroyo Vista Housing Redevelopment Traffic Impact Study Existing + Project Conditions PM. ----------------------------------- Level Of Service Computation Report 2000 HCM Unsignalized Method (Future Volume Alternative) ******************************************************************************** Intersection #11 Dougherty Road/Ventura Drive ******************************************************************************** Average Delay (sec/veh): 0.1 Worst Case Level Of Service: B[ 12.6] ******************************************************************************** Approach: North Bound South Bound East Bound West Bound Movement : L - T - R L - T - R L - T - R L - T - R Control: Uncontrolled Uncontrolled Stop Sign Stop Sign Rights: Include Include Include Include Lanes : 1 0 2 0 0 0 0 1 1 0 0 0 0 0 1 0 0 0 0 0 ------------~---------------~~---------------~~---------------I~---------------~ Volume Module: Base Vol: 20 1737 0 0 1006 7 0 0 15 0 0 0 Growth Adj: 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 Initial Bse: 20 1737 0 0 1006 7 0 0 15 0 0 0 Added Vol: 0 0 0 0 0 0 0 0 0 0 0 0 PasserByVOl: 0 0 0 0 0 0 0 0 0 0 0 0 Initial Fut: 20 1737 0 0 1006 7 0 0 15 0 0 0 User Adj: 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 PHF Adj: 0.93 0.93 0.93 0.93 0.93 0.93 0.93 0.93 0.93 0.93 0.93 0.93 PHF Volume: 22 1868 0 0 1082 8 0 0 16 0 0 0 Reduct Vol: 0 0 0 0 0 0 0 0 0 0 0 0 FinalVolume: 22 1868 0 0 1082 8 0 0 16 0 0 0 Critical Gap Module: Critical Gp: 4.1 xxxx xxxxx xxxxx xxxx xxxxx xxxxx xxxx 6.9 xxxxx xxxx xxxxx Fo1lowUpTim: 2.2 xxxx xxxxx xxxxx xxxx xxxxx xxxxx xxxx 3.3 xxxxx xxxx xxxxx ------------~---------------~~---------------II---------------~~---------------~ Capacity Module: Cnflict Vol: 1089 xxxx xxxxx xxxx xxxx xxxxx xxxx xxxx 545 xxxx rxxx xxxxx Potent Cap.: 648 xxxx xxxxx xxxx xxxx xxxxx xxxx xxxx 488 xxxx xxxx xxxxx Move Cap.: 648 xxxx xxxxx xxxx xxxx xxxxx xxxx xxxx 488 xxxx xxxx xxxxx Total Cap: xxxx xxxx xxxxx xxxx xxxx xxxxx 160 80 xxxxx 58 78 xxxxx Volume/Cap: 0.03 xxxx xxxx xxxx xxxx xxxx xxxx xxxx 0.03 xxxx xxxx xxxx Level Of Service Module: 2Way95thQ: 0.1 xxxx xxxxx xxxx xxxx xxxxx xxxx xxxx 0.1 xxxx xxxx xxxxx Control Del: 10.7 xxxx xxxxx xxxxx xxxx xxxxx xxxxx xxxx 12.6 xxxxx xxxx xxxxx LOS by Move: B * * * * * * * B Movement: LT - LTR - RT LT - LTR - RT LT - LTR - RT LT - LTR - RT Shared Cap.: xxxx xxxx xxxxx xxxx xxxx xxxxx xxxx xxxx xxxxx xxxx xxxx xxxxx SharedQueue:xxxxx xxxx xxxxx xxxxx xxxx xxxxx xxxxx xxxx xxxxx xxxxx xxxx xxxxx Shrd ConDel:xxxxx xxxx xxxxx xxxxx xxxx xxxxx xxxxx xxxx xxxxx xxxxx xxxx xxxxx Shared LOS: * * * * * * * * * * * * ApproachDel: xxxxxx xxxxxx 12.6 xxxxxx ApproachLOS: * * B ******************************************************************************** Note: Queue reported is the number of cars per lane. ******************************************************************************** Traffix 7.9.0215 (c) 2008 Dowling Assoc. Licensed to TJKM, PLEASANTON, CA Existing + Prj. Conditions Wed Apr 9, 2008 14:38:40 Page 13-1 Arroyo Vista Housing Redevelopment Traffic Impact Study Existing + Project Conditions PM -------------------------------------------------------------------------------- Level Of Service Computation Report 2000 HCM Unsignalized Method (Future Volume Alternative) ******************************************************************************** Intersection #12 Dougherty Road/N. Mariposa Drive ******************************************************************************** Average Delay (sec/veh): 0.0 Worst Case Level Of Service: A[ 0.0] ******************************************************************************** Approach: North Bound South Bound -East Bound West Bound Movement : L - T - R L - T - R L - T - R L - T - R ------------~---------------~~---------------~~---------------I---------------~ Control: Uncontrolled Uncontrolled Stop Sign Stop Sign Rights: Include Include Include Include Lanes : 0 0 2 0 0 0 0 2 0 0 0 0 0 0 0 0 0 0 0 0 Volume Module: Base Vol: 0 1757 0 0 1021 0 0 0 0 0 0 0 Growth Adj: 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 Initial Bse: 0 1757 0 0 1021 0 0 0 0 0 0 0 Added Vol: 0 0 0 0 0 0 0 0 0 0 0 0 PasserByVol: 0 0 0 0 0 0 0 0 0 0 0 0 Initial Fut: 0 1757 0 0 1021 0 0 0 0 0 0 0 User Adj: 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 PHF Adj: 0.95 0.95 0.95 0.95 0.95 0.95 0.95 0.95 0.95 0.95 0.95 0.95 PHF Volume: 0 1849 0 0 1075 0 0 0 0 0 0 0 Reduct Vol: 0 0 0 0 0 0 0 0 0 0 0 0 FinalVolume: 0 1849 0 0 1075 0 0 0 0 0 0 0 Critical Gap Module: Critical Gp:xxxxx xxxx xxxxx xxxxx xxxx xxxxx xxxxx xxxx xxxxx xxxxx xxxx xxxxx Fo1lowUpTim:xxxxx xxxx xxxxx xxxxx xxxx xxxxx xxxxx xxxx xxxxx xxxxx xxxx xxxxx Capacity Module: Cnflict Vol: xxxx xxxx xxxxx xxxx xxxx xxxxx xxxx xxxx xxxxx xxxx xxxx xxxxx Potent Cap.: xxxx xxxx xxxxx xxxx xxxx xxxxx xxxx xxxx xxxxx xxxx xxxx xxxxx Move Cap.: xxxx xxxx xxxxx xxxx xxxx xxxxx xxxx xxxx xxxxx xxxx xxxx xxxxx Total Cap: xxxx xxxx xxxxx xxxx xxxx xxxxx 170 87 xxxxx 92 87 xxxxx Volume/Cap: xxxx xxxx xxxx xxxx xxxx xxxx xxxx xxxx xxxx xxxx xxxx xxxx Level Of Service Module: 2Way95thQ: xxxx xxxx xxxxx xxxx xxxx xxxxx xxxx xxxx xxxxx xxxx xxxx xxxxx Control Del:xxxxx xxxx xxxxx xxxxx xxxx xxxxx xxxxx xxxx xxxxx xxxxx xxxx xxxxx LOS by Move: * * Movement: LT - LTR - RT LT - LTR - RT LT - LTR - RT LT - LTR - RT Shared Cap.: xxxx xxxx xxxxx xxxx xxxx xxxxx xxxx xxxx xxxxx xxxx xxxx xxxxx SharedQueue:xxxxx xxxx xxxxx xxxxx xxxx xxxxx xxxxx xxxx xxxxx xxxxx xxxx xxxxx Shrd ConDel:xxxxx xxxx xxxxx xxxxx xxxx xxxxx xxxxx xxxx xxxxx xxxxx xxxx xxxxx Shared LOS: * * ApproachDel: xxxxxx xxxxxx xxxxxx xxxxxx ApproachLOS: * * * ******************************************************************************** Note: Queue reported is the number of cars per lane. ******************************************************************************** Traffix 7.9.0215 (c) 2008 Dowling Assoc. Licensed to TJKM, PLEASANTON, CA Existing + Prj. Conditions Wed Apr 9, 2008 14:38:40 Page 14-1 ~.~ Arroyo Vista Housing Redevelopment Traffic Impact Study Existing + Project Conditions PM Level Of Service Computation Report 2000 HCM Unsignalized Method (Future Volume Alternat ive) *************************************************************** ***************** Intersection #13 Dougherty Road/S. Mariposa Drive Average Delay (sec/veh): 0.8 Worst Case Level Of Service: C[ 23.2] *************************************************************** ***************** Approach: North Bound South Bound East Bound West Bound Movement : L - T - R L - T - R L - T - R L - T - R ""~' ------------ Control: ~---------------~---------------~~---------------~ Uncontrolled Uncontrolled Stop Sign ~---------------I Stop Sign Rights: Include Include Include Include Lanes : 1 0 2 0 0 0 0 1 1 -0 0 0 1! 0 0 0 0 0 0 0 "~" ------------~---------------~~---------------~~---------------I Volume Module: ~---------------~ Base Vol: 88 1737 0 0 1007 14 20 0 38 0 0 0 Growth Adj: 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 Initial Bse: 88 1737 0 0 1007 14 20 0 38 0 0 0 Added Vol: 0 0 0 0 0 0 0 0 0 0 0 0 PasserByVol: 0 0 0 0 0 0 0 0 0 0 0 0 Initial Fut: 88 1737 0 0 1007 14 20 0 38 0 0 0 User Adj: 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 PHF Adj: 0.94 0.94 0.94 0.94 0.94 0.94 0.94 0.94 0.94 0.94 0.94 0.94 PHF Volume: 94 1848 0 0 1071 15 21 0 40 0 0 0 Reduct Vol: 0 0 0 0 0 0 0 0 0 0 0 0 ~ FinalVOlume: 94 1848 0 0 1071 15 21 0 40 0 0 0 ------------ Critical Gap ~---------------~~---------------I~---------------~ Module: ~---------------~ rt., Critical Gp: 4.1 xxxx xxxxx xxxxx xxxx xxxxx 6.8 6.5 6.9 xxxxx xxxx xxxxx Fo1lowUpTim: 2.2 xxxx xxxxx xxxxx xxxx xxxxx 3.5 4.0 3.3 xxxxx xxxx xxxxx ---------------------------~~---------------~~---------------~ Capacity Module: I---------------~ Cnflict Vol: 1086 xxxx xxxxx xxxx xxxx xxxxx 2190 3114 543 xxxx xxxx xxxxx Potent Ca p.: 650 xxxx xxxxx xxxx xxxx xxxxx 40 12 489 xxxx xxxx xxxxx '~° Move Cap.: 650 xxxx xxxxx xxxx xxxx xxxxx 35 10 489 xxxx xxxx xxxxx Total Cap: xxxx xxxx xxxxx xxxx xxxx xxxxx 136 64 xxxxx 43 59 xxxxx Volume/Cap: 0.14 xxxx xxxx xxxx xxxx xxxx 0.16 0.00 0.08 xxxx xxxx xxxx Level Of Service Module: 2Way95thQ: 0.5 xxxx xxxxx xxxx xxxx xxxxx xxxx xxxx xxxxx xxxx xxxx xxxxx Control Del: 11.5 xxxx xxxxx xxxxx xxxx xxxxx xxxxx xxxx xxxxx xxxxx xxxx xxxxx LOS by Move : B * * * * * * * * * * * ""'" Movement: LT - LTR - RT LT - LTR - RT LT - LTR - RT LT - LTR - RT Shared Cap.: xxxx xxxx xxxxx xxxx xxxx xxxxx xxxx 258 xxxxx xxxx xxxx xxxxx SharedQueue:xxxxx xxxx xxxxx xxxxx xxxx xxxxx xxxxx 0.9 xxxxx xxxxx xxxx xxxxx Shrd ConDel:xxxxx xxxx xxxxx xxxxx xxxx xxxxx xxxxx 23.2 xxxxx xxxxx xxxx xxxxx Shared LOS : * * * * * * * C * ApproachDel: xxxxxx xxxxxx 23.2 xxxxxx ApproachLOS: * * C Note: Queue reported is the number of cars per lane. ************ *************************************************** ***************** Traffix 7.9.0215 (c) 2008 Dowling Assoc. Licensed to TJKM, PLEASANTON, CA ~~~~ ~~ MITIG8 - Existing + Prj. Coaled Jun 18, 2008 10:10:39 Page 1-1 Arroyo Vista Housing Redevelopment Traffic Impact Study Existing + Project Conditions PM -------------------------------------------------------------------------------- Level Of Service Computation Report CCTALOS Method (Future Volume Alternative) ******************************************************************************** Intersection #13 Dougherty Road/S. Mariposa Drive ******************************************************************************** Cycle (sec): 100 Critical Vol./Cap.(X): 0.573 Loss Time (sec): 0 (Y+R=4.0 sec) Average Delay (sec/veh): xxxxxx Optimal Cycle: 53 Level Of Service: A Approach: North Bound South Bound East Bound West Bound Movement : L - T - R L - T - R L - T - R L - T - R ------------~---------------~~---------------~I---------------II---------------~ Control: Protected Protected Split Phase Split Phase Rights: Include Include Include Include Min. Green: 0 0 0 0 0 0 0 0 0 0 0 0 Lanes : 1 0 2 0 0 0 0 1 1 0 0 0 1! 0 0 0 0 0 0 0 Volume Module: Base Vol: 88 1737 0 0 1007 14 20 0 38 0 0 0 Growth Adj: 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 Initial Bse: 88 1737 0 0 1007 14 20 0 38 0 0 0 Added Vol: 0 0 0 0 0 0 0 0 0 0 0 0 PasserByVol: 0 0 0 0 0 0 0 0 0 0 0 0 Initial Fut: 88 1737 0 0 1007 14 20 0 38 0 0 0 User Adj: 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 PHF Adj: 0.94 0.94 0.94 0.94 0.94 0.94 0.94 0.94 0.94 0.94 0.94 0.94 PHF Volume: 94 1848 0 0 1071 15 21 0 40 0 0 0 Reduct Vol: 0 0 0 0 0 0 0 0 0 0 0 0 Reduced Vol: 94 1848 0 0 1071 15 21 0 40 0 0 0 RTOR Reduct: 0 0 0 0 0 0 0 0 0 0 0 0 RTOR Vol: 94 1848 0 0 1071 15 21 0 40 0 0 0 PCE Adj: 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 MLF Adj: 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 FinalVolume: 94 1848 0 0 1071 15 21 0 40 0 0 0 ---------------------------~~---------------~I---------------~~---------------~ Saturation Flow Module: Sat/Lane: 1720 1720 1720 1720 1720 1720 1720 1720 1720 1720 1720 1720 Adjustment: 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 Lanes: 1.00 2.00 0.00 0.00 1.97 0.03 0.34 0.00 0.66 0.00 0.00 0.00 Final Sat.: 1720 3440 0 0 3393 47 593 0 1127 0 0 0 ------------~---------------I~---------------~~---------------~~---------------~ Capacity Analysis Module: Vol/Sat: 0.05 0.54 0.00 0.00 0.32 0.32 0.04 0.00 0.04 0.00 0.00 0.00 Crit Volume: 924 0 62 0 Crit Moves: **** **** **** ******************************************************************************** Traffix 7.9.0215 (c) 2008 Dowling Assoc. Licensed to TJKM, PLEASANTON, CA ~ ~ ~ 8oi Existing + Prj. Conditions Wed Apr 9, 2008 14:38:40 Page 15-1 Arroyo Vista Housing Redevelopment Traffic Impact Study Existing + Project Conditions PM ----------------------------------- Level Of Service Computation Report 2000 HCM Unsignalized Method (Future Volume Alternative) ******************************************************************************** Intersection #14 Dougherty Road/Monterey Drive ******************************************************************************** Average Delay (sec/veh): 0.1 Worst Case Level Of Service: B[ 12.5] ******************************************************************************** Approach: North Bound South Bound East Bound West Bound Movement : L - T - R L - T - R L - T - R L - T - R ------------~---------------~I---------------~~---------------~~---------------~ Control: Uncontrolled Uncontrolled Stop Sign Stop Sign Rights: Include Include Include Include Lanes : 0 0 2 0 0 0 0 1 1 0 0 0 0 0 1 0 0 0 0 0 Volume Module: Base Vol: 0 1825 0 0 1038 7 0 0 15 0 0 0 Growth Adj: 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 Initial Bse: 0 1825 0 0 1038 7 0 0 15 0 0 0 Added Vol: 0 0 0 0 0 0 0 0 0 0 0 0 PasserByVOl: 0 0 0 0 0 0 0 0 0 0 0 0 Initial Fut: 0 1825 0 0 1038 7 0 0 15 0 0 0 User Adj: 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 PHF Adj: 0.97 0.97 0.97 0.97 0.97 0.97 0.97 0.97 0.97 0.97 0.97 0.97 PHF Volume: 0 1881 0 0 1070 7 0 0 15 0 0 0 Reduct Vol: 0 0 0 0 0 0 0 0 0 0 0 0 FinalVolume: 0 1881 0 0 1070 7 0 0 15 0 0 0 Critical Gap Module: Critical Gp:xxxxx xxxx xxxxx xxxxx xxxx xxxxx xxxxx xxxx 6.9 xxxxx xxxx xxxxx Fo1lowUpTim:xxxxx xxxx xxxxx xxxxx xxxx xxxxx xxxxx xxxx 3.3 xxxxx xxxx xxxxx ------------I---------------~I---------------~I---------------II---------------I Capacity Module: Cnflict Vol: xxxx xxxx xxxxx xxxx xxxx xxxxx xxxx xxxx 539 xxxx xxxx xxxxx Potent Cap.: xxxx xxxx xxxxx xxxx xxxx xxxxx xxxx xxxx 492 xxxx xxxx xxxxx Move Cap.: xxxx xxxx xxxxx xxxx xxxx xxxxx xxxx xxxx 492 xxxx xxxx xxxxx Total Cap: xxxx xxxx xxxxx xxxx xxxx xxxxx 168 84 xxxxx 63 84 xxxxx Volume/Cap: xxxx xxxx xxxx xxxx xxxx xxxx xxxx xxxx 0.03 xxxx xxxx xxxx Level Of Service Module: 2Way95thQ: xxxx xxxx xxxxx xxxx xxxx xxxxx xxxx xxxx 0.1 xxxx xxxx xxxxx Control Del:xxxxx xxxx xxxxx xxxxx xxxx xxxxx xxxxx xxxx 12.5 xxxxx xxxx xxxxx LOS by Move: * * * * * * * * B * Movement: LT - LTR - RT LT - LTR - RT LT - LTR - RT LT - LTR - RT Shared Cap.: xxxx xxxx xxxxx xxxx xxxx xxxxx xxxx xxxx xxxxx xxxx xxxx xxxxx SharedQueue:xxxxx xxxx xxxxx xxxxx xxxx xxxxx xxxxx xxxx xxxxx xxxxx xxxx xxxxx Shrd ConDel:xxxxx xxxx xxxxx xxxxx xxxx xxxxx xxxxx xxxx xxxxx xxxxx xxxx xxxxx Shared LOS: * * * * * * * * * * ApproachDel: xxxxxx xxxxxx 12.5 xxxxxx ApproachLOS: * * B ******************************************************************************** Note: Queue reported is the number of cars per lane. ******************************************************************************** Traffix 7.9.0215 (c) 2008 Dowling Assoc. Licensed to TJKM, PLEASANTON, CA 5~ / g~8 0 ~ _- X W ~. 0 v uo c .y (CS LJ _N 0 L L Q L O ~ ~ cn ~ v ~ p LN i N c j, .n ~ ~ c ~ Q u o ~_ ~ U ~~`~ ~ ~~ b ~, ~o zo 0 0 Q 0 get ~ col ~~~ N Q m W Z Q J !~ N a w W J m Q O O aO 0 0 0 ~ O ~ 0 0 0 0 0 0 0 0 ~ O O O O O O O O O M N O 0 0 0 0 0 ~ 0 0 0 0 0 0 0 N n W O H 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 o N o 0 0 0 0 0 0 0 o rn o 0 0 0 0 0 0 0 0 0 0 o co 0 0 a M M w c~ a o 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 W Q o 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 a w 2 H O 0 0 oo co rn rn v o v n o 0 o u~ o 0 0 ~ o 0 0 0 0 0 0 0 0 0 o M M o 0 0 o m o 0 0 o rn o 0 d M M n lf7 M n O N M (O O W N N M . ~ N M to N M N ~ ~ M M W 0' W O O n 0 0 O (O N O O N O M O .- O O n 0 0 0 0 0 0 W O ~ O O aD O to sr V' 0 0 0 0 0 0 M ~ ~ ~n n ~ V' N n u~ N ~ O ~ N rn n at N a n sT sr M r N M ~ (O N N V a w H w O O M (D O O M CO O n O N O 00 O ~ O 00 n O 0 0 0 0 0 0 ~ N n v M O aO O tt) (O V' O O O n O Q~ ~ M O O n N 0 l[Y ~ ~ n ~ QI M O O~ N Q7 O ~ ~ ~ ~ r 47 lf) Il') In t17 r (O ~ O ~Y M l!7 tf) (O OD ~' l{~ ~ d N ~ N `" ~ w 0 O M O ~ ~ 0 0 0 0 ~ O O (D 0 0 0 0 0 to n 0 0 0 0 0 0 0 0 0 0 0 M O O N O O CO 0 0 0 0 n W M M N n ~ ~ 00 ao N LL O O O N ~--~ 0 0 0 0 0 00 n ~ N ~ tf> n 0 0 M u~ 0 0 0 0 0 0 0 0 0 0 0o f0 f0 0 0 0 0 0 0 0 0 0 fD ' ~ W W n n _ T ~ O fO n d' M i n n CO ao 0 N ~ M ~ M N (O ~ W O ~ N N O N M M LL N a 0 f0 O '~ W 0 0 0 O OD O O n v lC1 f~ X 0 0 M 00 O O O O O 0 0 0 O O M M M O ~ 'a N t0 0 0 O O st ao O LL7 tC1 O M f0 O N Op oD O O n ~n M M ~ M fO O) M C c0 (O f0 c0 O> ao C) ~ d N ~ (O ~ N (O ~ N M M n ao N M ao r v N H I- a 0 f0 O st W 0 0 0 0 x0 O) c0 n v tn fD a' O O M ao O O O O O O O O O O M M M O ~ ~ N cD O O O 0 st GO O ~ ~ O M (O O N 00 00 O O n tf! M (O M ~ In M CO f0 T M ~ M O M O n _ oD (D ~ CO M O W O ~ W ~ N d N ~ e- N .- N N O N O CO W 0 0 0 0 ~ 00 n n N ~ In n 0 ~ 00 N O m 0 0 0 0 0 0 0 0 OJ O CO O N 07 W (D 0 0 0 0 = O CO ~ ~ n n M Q~ ~ O (O n N ~ oo M 117 n o0 n t0 'V ao = N ~ ~ ~ N M N tO ~ ~ (O .- n om '~ N N CO ~ N M N M H N M ~' tn (O n oo O O r N M ~ ~ tO n ao Q1 O N M ~ tt1 (O n oD Q7 O N M ~' CO N tn (p n aO O O 0 0 0 0 0 0 0 0 0 _ _ ~ ~ ~ ~ N N N N N N N N N N M M M M M M O N N N N N M M M M M M M M M M M M M M M M M M M M M M M M M M M M M M M M M M M M M (O n n n n n n n 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 ~n ~n ~n ~n ~n ~n ~n ~n ~n u~ ~n ~n ~ ~ ~n ~n ~n ~n ~n ~n u~ u~ u~ ~ ~n ~ ~ ~n ~n ~n ~n ~n ~n ~n ~n ~n ~n v~ u~ ~n ~ ~n ~n N H a H U U x C d a n Q ~~ ~ ~ ~~ r~ N H m W Z a r N a W e- W J m Q 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 co M o 0 0 0 0 0 0 0 0 0 0 a r r w F- 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 o m o 0 0 0 0 0 0 0 0 0 0 a `" w LL o 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 a W C7 Q 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 a w x 0 O ~ O O O O ~ O O O O O N 0 0 0 0 0 0 0 0 O ~ O ~ 0 0 0 0 0 0 0 0 0 0 0 O O d ~ N N N ~ ~ w `n O M M r O ao w N M o v o r ~n o 0 0 0 0 0 0 0 0 0 0 0 0 0 0 o M o o rn N rn o ~n o r r o 0 0 0 0 0 0 0 0 0 0 N Q1 N 00 ~ O O ~ O ~ r N r tC1 M N M N ~-- N r N a w w M r O) OJ r M 0 0 0 N 00 CO 0 0 0 0 0 t0 0 0 0 0 M O O O) ~h O> N ~ d0 M OD 0 0 0 0 0 0 0 0 0 0 0 N M N N CO r N ~n oo O N ao st M rn r v O r ~ ~ N '- OO M ~ M M N 00 N O r GO M N 4. M w 0 0 0 0 0 O O O O O O O O M N O O O O O M N 00 O W ~ 0 0 0 0 0 0 0 lf7 0 0 0 0 0 0 0 0 0 0 W M r N ~ ~ r N M M M O N ~ LL 0 0 0 47 O O O O O 0 0 O 0 0 0 0 0 0 st M O O O O O O O O O O O O ~ M O O M to O 07 1A N M r c0 m a' d' O ~ M O O r Cfl N N N N LL N a 0 0 0 O 0 0 0 0 0 0 0 0 (O d' O O a0 O O OO ~ d• O f0 oD 0 0 0 0 0 0 0 O N O CO O ~ 0 0 f0 CO N eD O CO to 0p ~ N to d• r N ao M r (O r N N cD r M r R CO O N _ v 1n (O m to N CO d• (D ~ l17 M O CD ~ CO M N M (D a F- O 1- 0 0 0 0 0 0 0 0 0 0 0 0 (D a' O O eo O O eO d• O CD ao 0 0 0 0 0 0 0 0 N O OO O 0 0 0O C0 N ao d Cp eO N d• N M CO N 00 M d' O ~ O O O O O E M M ~ ~ ~ O r 00 r r N r r (O o~ ~ (O oD N ~}' r- M CO CO N CO a x x O O O to 0 0 0 0 0 0 0 0 d' N O O M O O r to o0 O W d' O O O O O O O ~ d' M O O M (D O m to N = r ~ - r ~ r rn ao O tD N O 0 0 17 o] O O M O - O r N = N N N N N M M M O N N N ~ M ~ ~ N r f- 0 H N M d' In (O r a0 O O N M d• ~ CO r a0 O O N M d' O O r o0 O O N M ~ ~C1 CO r o0 Q1 O N M ~ tt) M M M M M M M M d' d' ~ ~ ~ d' C ~ ~ ~ U'1 tn ~ In ~ ~ ~ ~ ~ ~ O O (D CO CO fD (D (O CO CO r r r r r r r r r r r r r r r r r r r r r r r r r r r r r r r r r r r r r r r r r r r r r r r r r r 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 ~n ~n ~n ~n ~n ~n ~n ~n ~n ~n ~n in in ~n ~n ~ in ~n ~n ~n ~n u~ u~ ~n ~ ~n ~n ~n ~n u~ ~ u~ o u~ u~ ~n ~n ~n ~n u~ u~ ~n ~ ~n Q H Q H U U M 0 N LL x v c d a a Q ~~ ~~4 r N m W O Z Q J ~A r 0 N a W r W J m Q H 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 a w 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 a w a a o 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 W C7 Q 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 a w s O 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 o M o 0 0 a ~ o W N r W N M O ~ O N O O fD 0 0 0 0 0 0 0 0 0 0 0 0 M O ~ ~ N N ~Q (p a0 a w w M o n o N o o m o 0 0 0 0 0 0 M o 0 o c o o ~ n o ~ ~ N N d' ~ to n fD o0 a N r W 0 0 0 0 o rn o 0 0 o v o 0 0 o co rn o 0 0 0 0 0 0 0 ~ M M V' N O f0 Q~ N O S O O 00 O r- 0) Ln M n 0 0 0 0 0 0 0 0 0 ~ ~ n O N M N 0 N CO N .-- ~ LL a O ~ N (O QO M V O n 00 t17 O O r O O 0 0 0 0 0 0 0 0 O N n 0 O 00 n OO V N N M to ~ CO ~ M O ao ~ O ~' O~ O N M ~ F N N 0 F- O ~ N t0 O) M ~T O n 00 ~A 0 0 CO OD 0 0 0 0 0 0 0 0 O N n 0 O OD n aO ~' N N M ~ ~ CO Ln M CO ao `7 O of e0 O N M R d N N O f0 Q1 N O S 0 0 00 ~ i- O E M M 0 0 0 0 0 0 0 0 0 i = N N N In In n (O N .- fD N (O t!7 i = N CO N M I .- M r N M N W N ! H F- CO n aD O O N M ~ ~ CD n oD m O N M ~ ~t7 (O n ao O) n n n n oo ao oo oo oo ao m ao o o~ rn rn rn rn rn rn rn rn rn rn . n n n n n n n n n n n n n n n n n n n n n n n n 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 ~n ~n in u~ ~n u'~ u'~ ~n ~n u~ ~n u~ ~n u'~ ~n ~n ~n ~n ~n ~n u~ ~ ~ ~n i N H j Q ~ F- U U lL x 0 c m a n Q ~!-f °rl M O N Q I- M~ W W 0 Z Q J N 0 N Q W N W J m a a 0 0 00 0 0 0 O O tT' O O O O O O O O (0 0 0 0 0 0 0 0 0 0 M N 0 0 0 0 0 O O O ~ ti M r N W Q' I- a o 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 o N o 0 0 0 0 0 0 0 o rn o 0 0 0 0 0 0 0 0 M M W ~ IL a o 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 w a a o 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 W x ~- O a o 0 0o m rn rn ~ o v r~ o 0 0 ~n o 0 0 ~ o 0 0 0 0 0 0 0 0 0 o M M O 0 0 0 ao 0 M M I~ Ln M ti O Lf) M O O 00 ~ ~ N M ~ ~ ~ N Cfl N 'a' OD W ~ R' W a 0 0 i~ 0 0 0 CO N O O N O M O ~ 0 0 I~ 0 0 0 0 0 0 0 to O ~ ~ 0 0 OD O In 0 ~ M N ~ ~ ~ 1~ ~ ~ I~ ~ ~ ~- ~ N M ~ ~ a0 O N ~ N O M ~- r- ~ N 00 M d' ti W ~ .- ~ N H W R' a 0 0 M CD 6> O M CD O f~ O N O o0 O r O 00 I~ 0 0 0 0 0 0 0 ~ N h- H M O OO O ~ 00 d' M ~- O ~ O ~ I~ ~ N ~ Q~ ~ ~ ~ ~ ~ ~ ~ Cfl I~ ~ 00 CO ~ M M O to O to ~ N o0 O M S W N ~ N r- CO N ~ F- H O M O ~}' ~t O O O O r O O CD O O O O O ~- L[1 I` O O O O O O O O O O O N O O ~ O ~ ~ O M M N N ~ ~ M N M 0 LL ~ o rn ~ ~ ~ o 0 0 0 ~ ~ ~ ~ ~ ~ v ~ o o ~ ~ o ~ o 0 0 0 0 0 0 o v o ~ o o ~ 0 N A M ~ M N O cl' ~ (fl r r CO M 'ct (~ ~ LL N a O Cfl O ~ 0 0 0 o o o0 rn O ~ t7 ~ CO - ~ O N M ao 0 0 0 0 0 0 o 0 0 o ~ C~ ~ O ao ~ O ~ 00 0 ~ ~ ~ ~ O M CO 0 N 00 00 O O f~ In M r CO M ~ Ln CO (p O M M N O CO O O E M M r O (p O ~ d ~ ~ ~ r N r- c- N r- N N ~ e- N r H H O cD O ~ 0 0 0 0 0 00 O cD f~ ~' ~ (O ~ O N M 00 0 0 0 0 0 0 0 0 0 0 '~ CO ~ O 00 ~ p. ~ O ~- ~- M O oD O I~ M ~ M ~' CO O M O O t[) M O O) 0 OO ~ tf) O O N O O In O ~ Q O M N (O O M r CO ~ Q. ~ ~ ~ r N ~ ~ N ~ N N ~ ~ N ~ O N rn c0 t[) 0 0 0 0 ~- 00 1~ I~ N ~ ~ I~ O ~ 00 N O I~ o 0 0 0 0 0 0 0 ~ N c0 O ~ cD O) Cfl CY ~ ~ I~ H M O ~- O CO f~ N ~ O O ~ M CO O CD N ~ ~ ~ N M N (D ~ ~ CD N I~ (D M M ~ CO M ~ = ~ F 0 H N ~ N M ~ ~ (D I~ OD 0 0 ~ N M I ~ t0 f~ 00 O) O ~ N M d' ~ O ti a0 O O ~ N M ~ Cp N ~ a 0 0 0 0 0 0 0 0 0 ~ ~ ~ r ~ ~ r ~ ~ ~ N N N N N N N N N N M M M M M M O N -- M o M 0 M 0 M 0 M 0 M 0 M 0 M 0 M 0 M 0 M 0 M 0 M 0 M 0 M 0 M 0 M 0 M 0 M 0 M 0 M 0 M 0 M 0 M 0 M 0 M 0 M 0 M 0 M 0 M 0 M 0 M 0 M 0 M 0 M 0 (D 0 I~ 0 ~ ~ ~ ~ ~ ~ u~ ~ ~n ~ ~n ~n ~ ~n ~ ~n ~n u~ u~ ~n ~n ~ ~n ~n ~n ~n ~n ~n ~n ~n ~n ~ ~ ~ ~ ~ ~ Q H U U x a C N Q Q. Q ~~~~~i N Q H m W Z Q J N N Q W N W J m Q H a o 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 o co ~ ~ W I- a o o o oo 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 r w a o 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 W C9 Q a o 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 W x 0 a o 0 o rn o 0 o ti ~ o0 o ao 0 o co N o m o 0 0 0 0 0 0 0 0 0 0 0 0 o rn o ~n o v o N M M M ~' N N In N M 00 r ~ ~ W O r r M ~ r M r N N r N t7 r W N 0. o 0 0 0 o rn M o v o ~ ~n o 0 00 0 0 0 00 0 0 0 0 0 0 0 0 o M o o ~ r r o M o ~ r r N ~ O M N 00 ~ l,f) Cp 00 (D I~ ~ O N W N ~ N r r 00 r M M r N N r N H W a' a 0 0 0 1~ ' O O M 1~ O 00 M O O 'Ch N O (O o0 O O O O O O O O O M O O !~ O r d M G M ~ d '7 ~t ~ r ~ N ~ M V' N N N of r I~ r Q> N M ~ 00 M CO r OO CO ~ I~ 00 O r o W r r r M r r r N N M M r N N r N N r ~ r M H O H O Cfl O O O O O O O O O O O O O O O O N O O O O O O M N 00 O 00 ~ 0 0 0 0 O O O ~ ~t ~ ~ N N N ~ ~ O CO N O Q N N M N r r r M M M to ~ r r ~ 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 d' O O O O O O ~ M O 0 0 0 0 0 0 0 0 0 0 ~ I~ M O M ~ r CO N M r ~ N ~ r d' r ~ N n tt N Cfl O O O O O O O O O O O N O O O N O O O OO O O OO r ~ O (fl 00 0 0 0 0 0 0 0 - ~ 00 r O ~t r N (O ~ 0p ~ r ~ f~ 00 ~ N N O M ti (D ~ N N 00 ti M ~ tt (fl O O d r r M M O ~' N (0 0 0 0 0 0 0 0 0 0 0 0 N G O O N 0 0 0 00 0 0 o0 r ~ 0 CO 00 0 0 0 0 0 0 0 d 00 O r (p 00 r ti ~ N M Cp N 00 M ~ O 0 r C' N to ~ ~ 00 N oD ~ N N ~ ~ CO O 0. r r <") M O (D 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 (0 0 0 O O 0 0 I~ ~!") 00 O CO d" O O O O O O O I~ ~ t0 ~ d' O ~ N ~ ~ O oO O CO N O = M N M r N CO T M r N N N M M M In r T L L_ O ` r N CO ~ 00 O O r N M ~' t1') (D f~ 00 O O r N M ~ ~ O ~ 00 O O r N M ~ to (p I~ W O O r N M Q N N N N M M M M M M M M M M ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ to ~ to ~ to ~ to ~ ~ ~ CO Cp Cp (p ~ ~ ti ~ ti ~ ~ ~ N ti ~ ~ ~ ~ ~ ~ ~ ~ N ~ ~ ~ ti ~ ti ~ ~ ti ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ 0 0 0 0 0 0 ' 0 ' 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 a In In In Gn Ln l( ) ) l1 In ~ In Ln lf') In l,() In t!7 l!7 t!7 !.f) In In L(7 In In In lf~ L[') lf') In In Ln l!') In In lf) In In Ln H U U M 0 N x v c m n. a Q ~~ >~ o~ a M 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 r W F- a o0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 N W LL a o o o o o 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 w C7 a a o 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 w O a o 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 ~ o 0 0 ~ ~ ~ M o 0 0 ~ O o0 ~ N W W a ~ O O o 0 0 0 0 0 0 0 0 W O rn o 00 0 0 ~ 0 0 0 o O M o o) OO cO 0 0 0 N O c0 ti O O O O O M M ~ r (~ O W M N M (D I~ N ~ ~ ~ O I~ r r W OD 0 0 0 O O O 0 0 0 0 0 O O O O 00 O O X 0 0 0 0 0 I~ O O O O !~ M O N O (D L N 00 OO O O (D M M r r O M N O N M N M CO r N Ln Ln tY' N 00 O f~ W N r r ~ N r r O O O O O O OD O O O O M O 0 0 0 ~ 0 0 O O O O O O O M M O 0 0 O O O O O O ' ~i' O N r O t} ~ ~ M ~ O O N ~ O O O O O O N ~ O ~ O ~ N ~ ~ ~ 0 0 0 0 0 0 0 0 0 0 N o r ~ N CO M O r N N N r f~ N I~ M Q1 N Ct ` N r r r (D M N ~ LL O N O N O r ~ O CO CO I~ O O O N ~' 00 CO ~ O I~ O Ln M ti r (p d' 0 0 0 0 0 0 O O d r Lf) ~ In O t~ 00 '~ ~ 00 M O O ~ I~ O ti M O ~ O OJ ~ O C~ Q ~ Cfl ~ M 00 ~ O O M N ~ ~ W 00 M ~ O M O ~ O N O a ~ N F- O H O N O N O r ~ 0 CO CO f~ O O O N d' O O ~' O N O In M ti r (p X 0 0 0 0 0 0 0 0 Q. r Ln l1') Ln O tD 00 ~ ~ 00 M O O d' ti O ~ M 00 ~ O O '~ O (D '7 CO ~ M o0 ~ ~ CO (D ~`') N ~ N ~ O 00 M ~ O M O ~ O N Cfl a x x lC) r7' N O O M f~ O N In r N O 00 I~ O O N ~ O 00 O r M r M M N 0 0 0 0 0 0 0 O O O N r In (p N O O N O f~ O N 00 Ln r (p ~ r N f~ C~ Lf~ M N N ~ r N M N N N r N M O ~ ~ N r r In r (p M N 00 M = r H 0 H N ~ c0 Ln c0 O CO N cD O cfl O CO O I~ r N N ti M N ~ ti ~ N CO ti I~ ti O N O ti O O r O N O M 00 ~ a0 Ln a0 (O O I~ O O O O O O rn r rn N O M rn ~ rn Ln rn O rn ~ rn 00 O O rn a ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ti ~ ~ -~ ~ ~ ~ ~"" 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 ' ~ In LS') Ln In tf) In Ln Ln lC) In Ln In In t.[) lf') In Ln Ln Lf) In lt') Ln Ln In In Ln In Ln Ln Lf) Ln Ln to In ll ) a H U U N Q H m W Z Q J N N Q W N W J Q F- ,~ o W i 0 i i S~ ~ h ~ 1 .~, z c M O M x v c a~ n ~~ a Q r y, .4 Appendix G -Level of Service Worksheets: Short Term Cumulative Conditions ~~~ ~~ "l Short Term Cumulative CondiThu Apr 10, 2008 14:53:03 Page 1-1 Arroyo Vista Housing Redevelopment Traffic Impact Study Short Term Cumulative Conditions AM - ---------- -------------------- ------------------------------------------------ - Scenario Report Scenario: Short Term Cumulative Conditions AM Command: Short Term Cumulative Conditions AM Volume: Baseline AM Geometry: 2015 lanes np Impact Fee: Default Impact Fee Trip Generation: Default Trip Generation Trip Distribution: Default Trip Distribution Paths: Default Path Routes: Default Route Configuration: Existing PHF Traffix 7.9.0215 (c) 2008 Dowling Assoc. Licensed to TJKM, PLEASANTON, CA X84 ~ poi Short Term Cumulative CondiThu Apr 10, 2008 14:53:04 Page 2-1 Arroyo Vista Housing Redevelopment Traffic Impact Study Short Term Cumulative Conditions AM -------------------------------------------------------------------------------- Level Of Service Computation Report CCTALOS Method (Future Volume Alternative) ******************************************************************************** Intersection #1 Dougherty Road/Amador Valley Boulevard ******************************************************************************** Cycle (sec): 100 Critical Vol./Cag.(X): 1.105 Loss Time (sec): 0 (Y+R=4.0 sec) Average Delay (sec/veh): xxxxxx Optimal Cycle: 180 Level Of Service: F ******************************************************************************** Approach: North Bound South Bound East Bound West Bound Movement : L - T - R L - T - R L - T - R L - T - R ------------~---------------~I---------------I---------------~~---------------~ Control: Protected Protected Split Phase Split Phase Rights: Include Include Include Include Min. Green: 0 0 0 0 0 0 0 0 0 0 0 0 Lanes : 1 0 2 0 0 0 0 1 1 0 1 0 0 0 1 0 0 0 0 0 Volume Module: Base Vol: 372 750 0 0 1850 390 352 0 502 0 0 0 Growth Adj: 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 Initial Bse: 372 750 0 0 1850 390 352 0 502 0 0 0 Added Vol: 0 0 0 0 0 0 0 0 0 0 0 0 PasserByVOl: 0 0 0 0 0 0 0 0 0 0 0 0 Initial Fut: 372 750 0 0 1850 390 352 0 502 0 0 0 User Adj: 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 PHF Adj: 0.97 0.97 0.97 0.97 0.97 0.97 0.97 0.97 0.97 0.97 0.97 0.97 PHF Volume: 384 773 0 0 1907 402 363 0 518 0 0 0 Reduct Vol: 0 0 0 0 0 0 0 0 0 0 0 0 Reduced Vol: 384 773 0 0 1907 402 363 0 518 0 0 0 RTOR Reduct: 0 0 0 0 0 0 0 0 384 0 0 0 RTOR Vol: 384 773 0 0 1907 402 363 0 134 0 0 0 PCE Adj: 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 MLF Adj: 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 FinalVolume: 384 773 0 0 1907 402 363 0 134 0 0 0 ------------~---------------~~---------------~~---------------~I---------------~ Saturation Flow Module: Sat/Lane: 1720 1720 1720 1720 1720 1720 1720 1720 1720 1720 1720 1720 Adjustment: 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 Lanes: 1.00 2.00 0.00 0.00 1.65 0.35 1.00 0.00 1.00 0.00 0.00 0.00 Final Sat.: 1720 3440 0 0 2841 599 1720 0 1720 0 0 0 ------------~---------------~I---------------~I---------------I~---------------~ Capacity Analysis Module: Vol/Sat: 0.22 0.22 0.00 0.00 0.67 0.67 0.21 0.00 0.08 0.00 0.00 0.00 Crit Volume: 384 1155 363 0 Crit Moves: **** **** **** ******************************************************************************** Traffix 7.9.0215 (c) 2008 Dowling Assoc. Licensed to TJKM, PLEASANTON, CA %1 Short Term Cumulative CondiThu Apr 10, 2008 14:53:04 Page 3-1 Arroyo Vista Housing Redevelopment Traffic Impact Study Short Term Cumulative Conditions AM -------------------------------------------------------------------------------- Level Of Service Computation Report CCTALOS Method (Future Volume Alternative) ****,t************,r*******,t**,t*******,r**********,t*****,r**,t**********,r*****+r****,r* Intersection #2 Dougherty Road/Scarlett Drive ******************************************************************************** Cycle (sec): 100 Critical Vol./Cap.(X): 0.824 Loss Time (sec): 0 (Y+R=4.0 sec) Average Delay (sec/veh): xxxxxx Optimal Cycle: 105 Level Of Service: D Approach: North Bound South Bound East Bound west Bound Movement : L - T - R L - T - R L - T - R L - T - R ------------~---------------~~---------------~I---------------~~---------------I Control: Protected Protected Permitted Permitted Rights: Include Include Include Include Min. Green: 0 0 0 0 0 0 0 0 0 0 0 0 Lanes : 1 0 2 0 1 2 0 2 0 1 0 0 1! 0 0 1 0 0 1 0 ------------I---------------~~---------------~~---------------~~---------------~ Volume Module: Base Vol: 24 1081 51 16 2430 6 17 0 84 34 1 15 Growth Adj: 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 Initial Bse: 24 1081 51 16 2430 6 17 0 84 34 1 15 Added Vol: 0 0 0 0 0 0 0 0 0 0 0 0 PasserByVOl: 0 0 0 0 0 0 0 0 0 0 0 0 Initial Fut: 24 1081 51 16 2430 6 17 0 84 34 1 15 User Adj: 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 PHF Adj: 0.97 0.97 0.97 0.97 0.97 0.97 0.97 0.97 0.97 0.97 0.97 0.97 PHF Volume: 25 1114 53 16 2505 6 18 0 87 35 1 15 Reduct Vol: 0 0 0 0 0 0 0 0 0 0 0 0 Reduced Vol: 25 1114 53 16 2505 6 18 0 87 35 1 15 RTOR Reduct: 0 0 35 0 0 6 0 0 0 0 0 0 RTOR Vol: 25 1114 18 16 2505 0 18 0 87 35 1 15 PCE Adj: 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 MLF Adj: 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 FinalVolume: 25 1114 18 16 2505 0 18 0 87 35 1 15 Saturation Flow Module: Sat/Lane: 1720 1720 1720 1720 1720 1720 1720 1720 1720 1720 1720 1720 Adjustment: 1.00 1.00 1.00 0.91 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 Lanes: 1.00 2.00 1.00 2.00 2.00 1.00 0.17 0.00 0.83 1.00 0.06 0.94 Final Sat.: 1720 3440 1720 3127 3440 1720 290 0 1430 1720 108 1612 Capacity Analysis Module: Vol/Sat: 0.01 0.32 0.01 0.01 0.73 0.00 0.06 0.00 0.06 0.02 0.01 0.01 Crit Volume: 25 1253 104 35 Crit Moves: **** **** **** **** ******************************************************************************** Traffix 7.9.0215 (c) 2008 Dowling Assoc. Licensed to TJKM, PLEASANTON, CA ~~! ~ goy Short Term Cumulative CondiThu Apr 10, 2008 14:53:04 Page 4-1 Arroyo Vista Housing Redevelopment Traffic Impact Study Short Term Cumulative Conditions AM Level Of Service Computation Report CCTALOS Method (Future Volume Alternative) ******************************************************************************** Intersection #3 Dougherty Road/Sierra Lane ******************************************************************************** Cycle (sec): 100 Critical Vol./Cap.(X): 0.701 Loss Time (sec): 0 (Y+R=4.0 sec) Average Delay (sec/veh): xxxxxx Optimal Cycle: 76 Level Of Service: C ******************************************************************************** Approach: North Bound South Bound East Bound West Bound Movement : L - T - R L - T - R L - T - R L - T - R ------------I---------------~~---------------I~---------------~~---------------~ Control: Protected Protected Protected Protected Rights: Include Include Include Include Min. Green: 0 0 0 0 0 0 0 0 0 0 0 0 Lanes : 1 0 2 1 0 1 0 2 1 0 1 0 1 0 1 1 0 0 1 0 Volume Module: Base Vol: 256 1105 99 15 2353 90 40 2 51 51 5 11 Growth Adj: 1.00 1.00 1.00 1.00.1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 Initial Bse: 256 1105 99 15 2353 90 40 2 51 51 5 11 Added Vol: 0 0 0 0 0 0 0 0 0 0 0 0 PasserByVol: 0 0 0 0 0 0 0 0 0 0 0 0 Initial Fut: 256 1105 99 15 2353 90 40 2 51 51 5 11 User Adj: 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 PHF Adj: 0.97 0.97 0.97 0.97 0.97 0.97 0.97 0.97 0.97 0.97 0.97 0.97 PHF Volume: 264 1139 102 15 2426 93 41 2 53 53 5 11 Reduct Vol: 0 0 0 0 0 0 0 0 0 0 0 0 Reduced Vol: 264 1139 102 15 2426 93 41 2 53 53 5 11 RTOR Reduct: 0 0 0 0 0 0 0 0 53 0 0 0 RTOR Vol: 264 1139 102 15 2426 93 41 2 0 53 5 11 PCE Adj: 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 MLF Adj: 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 FinalVolume: 264 1139 102 15 2426 93 41 2 0 53 5 11 ------------I---------------~---------------~~---------------~---------------I Saturation Flow Module: Sat/Lane: 1650 1650 1650 1650 1650 1650 1650 1650 1650 1650 1650 1650 Adjustment: 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 Lanes: 1.00 2.75 0.25 1.00 2.89 0.11 1.00 1.00 1.00 1.00 0.31 0.69 Final Sat.: 1650 4543 407 1650 4768 182 1650 1650 1650 1650 516 1134 ------------I---------------II---------------~I---------------~~---------------I Capacity Analysis Module: Vol/Sat: 0.16 0.25 0.25 0.01 0.51 0.51 0.02 0.00 0.00 0.03 0.01 0.01 Crit Volume: 264 840 0 53 Crit Moves: **** **** **** **** ******************************************************************************** Traffix 7.9.0215 (c) 2008 Dowling Assoc. Licensed to TJKM, PLEASANTON, CA ~~~ ~~ ~~ Short Term Cumulative CondiThu Apr 10, 2008 14:53:04 Page 5-1 Arroyo Vista Housing Redevelopment Traffic Impact Study Short Term Cumulative Conditions AM ------------ ------ ------------ Level Of ---------------------------------- Service Computation Report ----- ----------- CCTALOS Method (Future Volume Alternative) ************ ****** ************ ********************************** ***** *********** Intersection #4 Dougherty Road /Dublin Boulevard ************ ****** ************ ********************************** ***** *********** w~ Cycle (sec): 100 Critical Vol./Cap.(X): 0.787 Loss Time (s ec): 0 (Y+R= 4.0 sec) Average Delay (sec/veh): xxxxxx Optimal Cycl e: 107 Level Of Service: C ************ ****** ************ ***************** ***************** ***** *********** w~. Approach: North Bound South Bound East Bound We st Bound Movement : L - T - R L - T - R L - T - R --~ L - ----- T - R ----------I '"° ------------ Control: ~---------------II Protected ---------------~I Protected ------------- Protected Protected iwa Rights: Include Include Ovl Include Min. Green: 0 0 0 0 0 0 0 0 0 0 0 0 Lanes : 3 0 3 0 2 2 0 3 1 0 2 0 3 0 2 3 0 3 0 1 ------------ ~----- ----------~~ ---------------~~ ---------------~~ ----- ----------~ s Volume Modul e: Base Vol: 390 1203 937 365 2068 112 164 856 391 278 1427 327 ~: Growth Adj: 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 Initial Bse: 390 1203 937 365 2068 112 164 856 391 278 1427 327 Added Vol: 0 0 0 0 0 0 0 0 0 0 0 0 PasserByVol: 0 0 0 0 0 0 0 0 0 0 0 0 ,~; Initial Fut: 390 1203 937 365 2068 112 164 856 391 278 1427 327 User Adj: 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 PHF Adj: 0.97 0.97. 0.97 0.97 0.97 0.97 0.97 0.97 0.97 0.97 0.97 0.97 ~ PHF Volume: 402 1240 966 376 2132 115 169 882 403 287 1471 337 Reduct Vol: 0 0 0 0 0 0 0 0 0 0 0 0 Reduced Vol: 402 1240 966 376 2132 115 169 882 403 287 1471 337 RTOR Reduct: 0 0 110 0 0 0 0 0 154 0 0 207 _ RTOR Vol: 402 1240 856 376 2132 115 169 882 249 287 1471 130 s PCE Adj: 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 MLF Adj: 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 FinalVolume: 402 1240 856 376 2132 115 169 882 249 287 1471 130 Saturation Flow Module: Sat/Lane: 1650 1650 1650 1650 1650 1650 1650 1650 1650 1650 1650 1650 Adjustment: 0.87 1.00 0.91 0.91 1.00 1.00 0.91 1.00 0.91 0.87 1.00 1.00 aN Lanes: 3.00 3.00 2.00 2.00 3.79 0.21 2.00 3.00 2.00 3.00 3.00 1.00 Final Sat.: 4307 4950 3000 3000 6261 339 3000 4950 3000 4307 4950 1650 Capacity Analysis Module: Vol/Sat: 0.09 0.25 0.29 0.13 0.34 0.34 0.06 0.18 0.08 0.07 0.30 0.08 Crit Volume: 134 562 85 490 Crit Moves: **** **** **** **** *********************************************** ********************************* .,~e Traffix 7.9.0215 (c) 2008 Dowling Assoc. Licensed to TJKM, PLEASANTON, CA ~~ ~-~3 a~ X01 Short Term Cumulative CondiThu Apr 10, 2008 14:53:04 Page 6-1 Arroyo Vista Housing Redevelopment Traffic Impact Study Short Term Cumulative Conditions AM -------------------------------------------------------------------------------- Level Of Service Computation Report CCTALOS Method (Future Volume Alternative) ******************************************************************************** Intersection #5 Dougherty Road/Westbound I-580 off-ramp Cycle (sec): 100 Critical Vol./Cap.(X): 0.793 Loss Time (sec): 0 (Y+R=4.0 sec) Average Delay (sec/veh): xxxxxx Optimal Cycle: 110 Level Of Service: C ******************************************************************************** Approach: North Bound South Bound. East Bound West Bound Movement : L - T - R L - T - R L - T - R L - T - R ------------~---------------~~---------------II---------------~I---------------~ Control: Protected Protected Split Phase Split Phase Rights: Include Ignore Include Include Min. Green: 0 0 0 0 0 0 0 0 0 0 0 0 Lanes: 0 0 3 0 0 0 0 2 0 0 0 0 0 0 0 2 0 0 0 2 Volume Module: Base Vol: 0 1749 0 0 1788 0 0 0 0 552 0 781 Growth Adj: 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 Initial Bse: 0 1749 0 0 1788 0 0 0 0 552 0 781 Added Vol: 0 0 0 0 0 0 0 0 0 0 0 0 PasserByVol: 0 0 0 0 0 0 0 0 0 0 0 0 Initial Fut: 0 1749 0 0 1788 0 0 0 0 552 0 781 User Adj: 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 PHF Adj: 0.97 0.97 0.97 0.97 0.97 0.97 0.97 0.97 0.97 0.97 0.97 0.97 PHF Volume: 0 1803 0 0 1843 0 0 0 0 569 0 BO5 Reduct Vol:, 0 0 0 0 0 0 0 0 0 0 0 0 Reduced Vol: 0 1803 0 0 1843 0 0 0 0 569 0 805 RTOR Reduct: 0 0 0 0 0 0 0 0 0 0 0 0 RTOR Vol: 0 1803 0 0 1843 0 0 0 0 569 0 805 PCE Adj: 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 MLF Adj: 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 FinalVolume: 0 1803 0 0 1843 0 0 0 0 569 0 805 Saturation Flow Module: Sat/Lane: 1720 1720 1720 1720 1720 1720 1720 1720 1720 1720 1720 1720 Adjustment: 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 0.91 1.00 0.91 Lanes: 0.00 3.00 0.00 0.00 2.00 0.00 0.00 0.00 0.00 2.00 0.00 2.00 Final Sat.: 0 5160 0 0 3440 0 0 0 0 3127 0 3127 Capacity Analysis Module: Vol/Sat: 0.00 0.35 0.00 0.00 0.54 0.00 0.00 0.00 0.00 0.18 0.00 0.26 Crit Volume: 0 922 0 403 Crit Moves: **** **** **** ******************************************************************************** Traffix 7.9.0215 (c) 2008 Dowling Assoc. Licensed to TJKM, PLEASANTON, CA ~~f ~ SDI w Short Term Cumulative CondiThu Apr 10, 2008 14:53:04 Page 7-1 ~, Arroyo Vista Housing Redevelopment Traffic Impact Study Short Term Cumulative Conditions AM ------------- ----- ---------------------------------------------- Level Of Service Computation Report ----- ----- ------ CCTALOS Method (Future Volume Alternative) ****************** ********************************************** ***** ***** ****** Intersection #6 Hopyard Road/Eastbound I-580 off-ramp Cycle (sec): 100 Critical Vol./Cap.(X): 0.8 55 Loss Time (sec): 0 (Y+R=4.0 sec) Average Delay (sec/veh) xxxx xx Optimal Cycle: 157 Level Of Service: D ****************** ********************************************** ***** ***** ****** Approach: Nor th Bound South Bound East Bound We st Bound Movement : L - T - R L - T - R L - T - R ~ L - ----- T ----- - R -----~ ------------~ Control: ----- Pr ----------~ otected I---------------~~---------------~ Protected Split Phase Spl it Phase Rights: Wi deBypass Ignore Include Include Min. Green: 0 0 0 0 0 0 0 0 0 0 0 0 Lanes : 0 0 3 0 0 0 0 3 0 0 2 0 0 0 2 0 0 0 0 0 ------------~ ----- ---------- ~I---------------~---------------~I ----- ----- -----~ Volume Module: Base Vol: 0 1227 0 0 1678 0 887 0 1575 0 0 0 Growth Adj: 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 Initial Bse: 0 1227 0 0 1678 0 887 0 1575 0 0 0 ~,, Added Vol: 0 0 0 0 0 0 0 0 0 0 0 0 PasserByVol: 0 0 0 0 0 0 0 0 0 0 0 0 ~_., Initial Fut: 0 1227 0 0 1678 0 887 0 1575 0 0 0 User Adj: 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 ~ PHF Adj: 0.97 0.97 0.97 0.97 0.97 0.97 0.97 0.97 0.97 0.97 0.97 0.97 PHF Volume: 0 1265 0 0 1730 0 914 0 1624 0 0 0 Reduct Vol: 0 0 0 0 0 0 0 0 0 0 0 0 Reduced Vol: 0 1265 0 0 1730 0 914 0 1624 0 0 0 RTOR Reduct: 0 0 0 0 0 0 0 0 0 0 0 0 RTOR Vol: 0 1265 0 0 1730 0 914 0 1624 0 0 0 PCE Adj: 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 MLF Adj: 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 FinalVOlume: 0 1265 0 0 1730 0 914 0 1624 0 0 0 "~" Saturation Flow Module: ; Sat/Lane: 1720 1720 1720 1720 1720 1720 1720 1720 1720 1720 1720 1720 Adjustment: 1.00 1.00 1.00 1.00 1.00 1.00 0.91 1.00 0.91 1.00 1.00 1.00 *'~"` Lanes: 0.00 3.00 0.00 0.00 3.00 0.00 2.00 0.00 2.00 0.00 0.00 0.00 Final Sat.: 0 5160 0 0 5160 0 3127 0 3127 ---------------I~---------------~I ~ 0 ----- 0 ----- 0 -----) ------------~----- Capacity Analysis ---------- Module: ~ ~'~'° Vol/Sat: 0.00 0.25 0.00 0.00 0.34 0.00 0.29 0.00 0.52 0.00 0.00 0.00 Crit Volume: 0 577 812 0 Crit Moves: **** **** **** Traffix 7.9.0215 (c) 2008 Dowling Assoc. Licensed to TJKM, PLEASANTON, CA I j~ ~ ~.,~ ~©! Short Term Cumulative CondiThu Apr 10, 2008 14:53:04 Page 8-1 Arroyo Vista Housing Redevelopment Traffic Impact Study Short Term Cumulative Conditions AM -------------------------------------------------------------------------------- Level Of Service Computation Report CCTALOS Method (Future Volume Alternative) ******************************************************************************** Intersection #7 Dublin Boulevard/Scarlett Drive ******************************************************************************** Cycle (sec): 100 Critical Vol./Cap.(X): 0.361 Loss Time (sec): 0 (Y+R=4.0 sec) Average Delay (sec/veh): xxxxxx Optimal Cycle: 36 Level Of Service: A ******************************************************************************** Approach: North Bound South Bound East Bound West Bound Movement : L - T - R L - T - R L - T - R L - T - R ------------I---------------~~---------------~~---------------~~---------------~ Control: Protected Protected Protected Protected Rights: Include Include Include Include Min. Green: 0 0 0 0 0 0 0 0 0 0 0 0 Lanes : 1 0 0 0 1 0 0 0 0 0 1 0 3 0 1 1 0 3 0 0 Volume Module: Base Vol: 109 0 41 0 0 0 16 1246 49 70 1430 0 Growth Adj: 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 Initial Bse: 109 0 41 0 0 0 16 1246 49 70 1430 0 Added Vol: 0 0 0 0 0 0 0 0 0 0 0 0 PasserByVol: 0 0 0 0 0 0 0 0 0 0 0 0 Initial Fut: 109 0 41 0 0 0 16 1246 49 70 1430 0 User Adj: 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 PHF Adj: 0.97 0.97 0.97 0.97 0.97 0.97 0.97 0.97 0.97 0.97 0.97 0.97 PHF Volume: 112 0 42 0 0 0 16 1285 51 72 1474 0 Reduct Vol: 0 0 0 0 0 0 0 0 0 0 0 0 Reduced Vol: 112 0 42 0 0 0 16 1285 51 72 1474 0 RTOR Reduct: 0 0 42 0 0 0 0 0 51 0 0 0 RTOR Vol: 112 0 0 0 0 0 16 1285 0 72 1474 0 PCE Adj: 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 MLF Adj: 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 FinalVolume: 112 0 0 0 0 0 16 1285 0 72 1474 0 ------------~---------------~~---------------~~---------------II---------------I Saturation Flow Module: Sat/Lane: 1720 1720 1720 1720 1720 1720 1720 1720 1720 1720 1720 1720 Adjustment: 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 Lanes: 1.00 0.00 1.00 0.00 0.00 0.00 1.00 3.00 1.00 1.00 3.00 0.00 Final Sat.: 1720 0 1720 0 0 0 1720 5160 1720 1720 5160 0 Capacity Analysis Module: Vol/Sat: 0.07 0.00 0.00 0.00 0.00 0.00 0.01 0.25 0.00 0.04 0.29 0.00 Crit Volume: 112 0 16 491 Crit Moves: **** **** **** ******************************************************************************** Traffix 7.9.0215 (c) 2008 Dowling Assoc. Licensed to TJKM, PLEASANTON, CA ~~ ~ Bo ~ Short Term Cumulative CondiThu Apr 10, 2008 14:53:04 Page 9-1 Arroyo V ista Housing Redevelopment T raffic Impact Study Short Te rm Cumulative Conditions AM Level Of Service Computation Report CCTALOS Meth od (Future Volume Alternative) ****************** ************ ********************************** ***** *********** Intersection #8 Ha cienda Drive /Dublin Boulevard ****************************** ********************************** ***** *********** Cycle (sec): 100 Critical Vol./Cap.(X): 0.697 Loss Time (sec): 0 (Y+R= 4.0 sec) Average Delay (sec/veh): xxxxxx Optimal Cycle: 75 Level Of Service: B Approach: North Bound South Bound East Bound West Bound `" Movement : L - T - R L - T - R L - T - R ---------II L - ----- T - R ----------~ ------------~---------------I~ Control: Protected ---------------~I------ Protected Protected Protected ~` Rights: Include Include Include Include Min. Green: 0 0 0 0 0 0 0 0 0 0 0 0 Lanes : 3 0 2 0 2 2 0 3 0 1 2 0 3 0 2 2 0 2 1 0 ------------I----- ----------~~ ---------------~~---------------II ---------------~ Volume Module: Base Vol: 568 902 201 53 989 369 161 445 133 684 1323 118 ~' Growth Adj: 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 Initial Bse: 568 902 201 53 989 369 161 445 133 684 1323 118 Added Vol: 0 0 0 0 0 0 0 0 0 0 0 0 PasserByVOl: 0 0 0 0 0 0 0 0 0 0 0 0 Initial Fut: 568 902 201 53 989 369 161 445 133 684 1323 118 User Adj: 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 PHF Adj: 0.97 0.97 0.97 0.97 0.97 0.97 0.97 0.97 0.97 0.97 0.97 0.97 PHF Volume: 586 930 207 55 1020 380 166 459 137 ,705 1364 122 .,. Reduct Vol: 0 0 0 0 0 0 0 0 0 0 0 0 Reduced Vol: 586 930 207 55 1020 380 166 459 137 705 1364 122 RTOR Reduct: 0 0 207 0 0 91 0 0 137 0 0 0 RTOR Vol: 586 930 0 55 1020 289 166. 459 0 705 1364 122 PCE Adj: 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 MLF Adj: 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 FinalVolume: 586 930 0 --------~ 55 1020 289 166 459 0 ~---------------~~---------------~~ 705 ---- 1364 122 -----------~ ------------~------- Saturation Flow Module: t... Sat/Lane: 1650 1650 1650 1650 1650 1650 1650 1650 1650 1650 1650 1650 Adjustment: 0.87 1.00 0.91 0.91 1.00 1.00 0.91 1.00 0.91 0.91 1.00 1.00 ~"*' Lanes: 3.00 2.00 2.00 2.00 3.00 1.00 2.00 3.00 2.00 2.00 2.75 0.25 Final Sat.: 4307 3300 3000 3000 4950 1650 3000 4950 3000 --------------~ 3000 ~---- 4545 405 -----------I '" ------------~---- Capacity Analysis -----------~ Module: ~---------------I~- Vol/Sat: 0.14 0.28 0.00 0.02 0.21 0.18 0.06 0.09 0.00 0.24 0.30 0.30 Crit Volume: 195 340 83 495 Crit Moves: **** **** **** **** ***************** ************ *************************************** ************ Traffix 7.9.0215 (c) 2008 Dowling Assoc. Licensed to TJKM, PLEASANTON, CA ~ ~ ~7 ~~ 0 ~Q ~~ Short Term Cumulative CondiThu Apr 10, 2008 14:53:04 Page 10-1 Arroyo Vista Housing Redevelopment Traffic Impact Study Short Term Cumulative Conditions AM -------------------------------------------------------------------------------- Level Of Service Computation Report CCTALOS Method (Future Volume Alternative) ******************************************************************************** Intersection #9 Hacienda Drive/Westbound I-580 off-ramp ******************************************************************************** Cycle (sec): 100 Critical Vol./Cap.(X): 0.992 Loss Time (sec): 0 (Y+R=4.0 sec) Average Delay (sec/veh): xxxxxx Optimal Cycle: 180 Level Of Service: E ******************************************************************************** Approach: North Bound South Bound East Bound West Bound Movement : L - T - R L - T - R L - T - R L - T - R ------------~---------------~I---------------II---------------~~---------------~ Control: Protected Protected Split Phase Split Phase Rights: Ignore Ignore Include Include Min. Green: 0 0 0 0 0 0 0 0 0 0 0 0 Lanes : p 0 3 0 0 0 0 3 0 0 0 0 0 0 0 2 0 0 0 2 Volume Module: Base Vol: 0 2189 0 0 1041 0~ 0 0 0 1683 0 314 Growth Adj: 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 Initial Bse: 0 2189 0 0 1041 0 0 0 0 1683 0 314 Added Vol: 0 0 0 0 0 0 0 0 0 0 0 0 PasserByVol: 0 0 0 0 0 0 0 0 0 0 0 0 Initial Fut: 0 2189 0 0 1041 0 0 0 0 1683 0 314 User Adj: 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 PHF Adj: 0..97 0.97 0.97 0.97 0.97 0.97 0.97 0.97 0.97 0.97 0.97 0.97 PHF Volume: 0 2257 0 0 1073 0 0 0 0 1735 0 324 Reduct Vol: 0 0 0 0 0 0 0 0 0 0 0 0 Reduced Vol: 0 2257. 0 0 1073 0 0 0 0 .1735 0 324 RTOR Reduct: 0 0 0 0 0 0 0 0 0 0 0 0 RTOR Vol: 0 2257 0 0 1073 0 0 0 0 1735 0 324 PCE Adj: 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 MLF Adj: 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 FinalVolume: 0 2257 0 0 1073 0 0 0 0 1735 0 324 Saturation Flow Module: Sat/Lane: 1720 1720 1720 1720 1720 1720 1720 1720 1720 1720 1720 1720 Adjustment: 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1..00 0.91 1.00 0.91 Lanes: 0.00 3.00 0.00 0.003.00 0.00 0.00 0.00 0.00. 2.00 0.00 2.00 Final Sat.: 0 5160 0 0 5160 0 0 0 0 3127 0 3127 ------------~---------------~I---------------~~---------------~~---------------I Capacity Analysis Module: Vol/Sat: 0.00 0.44 0.00 0.00 0.21 0.00 -0.00 0.00 0.00 0.55 0.00 0.10 Crit Volume: 752 0 0 868 Crit Moves: **** **** **** ******************************************************************************** Traffix 7.9.0215 (c) 2008 Dowling Assoc. Licensed to TJKM, PLEASANTON, CA ~~I'$ Short Term Cumulative CondiThu Apr 10, 2008 14:53:04 Page 11-1 Arroyo Vista Housing Redevelopment Traffic Impact Study Short Term Cumulative Conditions AM ----------------------------------- Level Of Service Computation Report CCTALOS Method (Future Volume Alternative). ******************************************************************************** Intersection #10 Hacienda Drive/Eastbound I-580 off-ramp ******************************************************************************** Cycle (sec): 100 Critical Vol./Cap.(X): 0.897 Loss Time (sec): 0 (Y+R=4.0 sec) Average Delay (sec/veh): xxxxxx Optimal Cycle: 180 Level Of Service: D ******************************************************************************** Approach: North Bound South Bound East Bound West Bound Movement : L - T - R L - T - R L - T - R L - T - R ------------~---------------~~---------------I~---------------~~---------------I Control: Protected Protected Split Phase Split Phase Rights: Ignore Ignore Include Include Min. " Green: 0 0 0 0 0 0 0 0 0 0 0 0 Lanes : 0 0 3 0 0 0 0 3 0 0 2 0 0 0 2 0 0 0 0 0 Volume Module: Base Vol: 0 1344 0 0 2528 0 1190 0 1100 0 0 0 Growth Adj: 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 Initial Bse: 0 1344 0 0 2528 0 1190 0 1100 0 0 0 Added Vol: 0 0 0 0 0 0 0 0 0 0 0 0 PasserByVol: 0 0 0 0 0 0 0 0 0 0 0 0 Initial Fut: 0 1344 0 0 2528 0 1190 0 1100 0 0 0 User Adj: 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 PHF Adj: 0.97 0.97 0.97 0.97 0.97 0.97 0.97 0.97 0.97 0.97 0.97 0.97 PHF Volume: 0 1386 0 0 2606 0 1227 0 1134 0 0 0 Reduct Vol: 0 0 0 0 0 0 0 0 0 0 0 0 Reduced Vol: 0 1386 0 0 2606 0 1227 0 1134 0 0 0 RTOR Reduct: 0 0 0 0 0 0 0 0 0 0 0 0 RTOR Vol: 0 1386 0 0 2606 0 1227 0 1134 0 0 0 PCE Adj: 1.00 1..00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 MLF Adj: 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 FinalVolume: 0 1386 0 0 2606 0 1227 0 1134 0 0 0 Saturation Flow Module: Sat/Lane: 1720 1720 1720. 1720 1720 1720 1720 1720 1720 1720 1720 1720 Adjustment: 1.00 1.00 1.00 1.00 1.00 1.00 0.91 1.00 0.91 1.00 1.00 1.00 Lanes: 0.00 3.00 0.00 0.00 3.00 0.00 2.00 0.00 2.00 0.00 0.00 0.00 Final Sat.: 0 5160 0 0 5160 0 3127 0 3127 0 0 0 ------------~---------------~~---------------~~---------------I~---------------~ Capacity Analysis Module: Vol/Sat: 0.00 0.27 0.00 0.00 0.51 0.00 0.39 0.00 0.36 0.00 0.00 0.00 Crit Volume: 0 .869 613 0 Crit Moves: **** **** **** ******************************************************************************** Traffix 7.9.0215 (c) 2008 Dowling Assoc. Licensed to TJKM, PLEASANTON, CA ~- ~ Short Term Cumulative CondiThu Apr 10, 2008 14:53:04 Page 12-1 Arroyo Vista Housing Redevelopment Traffic Impact Study Short Term Cumulative Conditions AM -------------------------------------------------------------------------------- Level Of Service Computation Report 2000 HCM Unsignalized Method (Future Volume Alternative) ******************************************************************************** Intersection #11 Dougherty Road/Ventura Drive ******************************************************************************** Average Delay (sec/veh): 1.5 Worst Case Level Of Service: F[563.1] ******************************************************************************** Approach: North Bound South Bound East Bound west Bound Movement : L - T - R L - T - R L - T - R L - T - R ------------~---------------~~---------------~~---------------~~------p---g----~ Control: Uncontrolled Uncontrolled Stop Sign Sto Si n Rights: Include Include Include Include Lanes: 1 0 2 0 0 0 0 1 1 0 0 0 1! 0 0 0 0 0 0 0 Volume Module: Base Vol: 0 1114 0 0 2350 2 8 0 1 0 0 0 Growth Adj: 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 Initial Bse: 0 1114 0 0 2350 2 8 0 1 0 0 0 Added Vol: 0 0 0 0 0 0 0 0 0 0 0 0 PasserByVol: 0 0 0 0 0 0 0 0 0 0 0 0 Initial Fut: 0 1114 0 0 2350 2 8 0 1 0 0 0 User Adj: 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1_.00 1.00 1.00 1.00 PHF Adj: 0.97 0.97 0.97 0.97 0.97 0.97 0.97 0.97 0.97' 0.97 0.97 0.97 PHF Volume: 0 1148 0 0 2423 2 8 0 1 0 0 0 Reduct Vol: 0 0 0 0 0 0 0 0 0 0 0 0 FinalVolume: 0 1148 0 0 2423 2 8 0 1 0 0 0 ------------I---------------II---------------~~---------------~I---------------~ Critical Gap Module: Critical Gp:xxxxx xxxx xxxxx xxxxx xxxx xxxxx 6.8 6.5 6.9 xxxxx xxxx xxxxx Fo1lowUpTim:xxxxx xxxx xxxxx xxxxx xxxx xxxxx 3.5 4.0 3.3 xxxxx xxxx xxxxx Capacity Module: Cnflict Vol: xxxx xxxx xxxxx xxxx xxxx xxxxx 2998 3572 1212 xxxx xxxx xxxxx Potent Cap.: xxxx xxxx xxxxx xxxx xxxx xxxxx 11 6 177 xxxx xxxx xxxxx Move Cap.: xxxx xxxx xxxxx xxxx xxxx xxxxx 11 6 177 xxxx xxxx xxxxx Volume/Cap: xxxx xxxx xxxx xxxx xxxx xxxx 0.75 0.00 0.01. xxxx xxxx xxxx Level Of Service Module: 2Way95thQ: xxxx xxxx xxxxx xxxx xxxx xxxxx xxxx xxxx xxxxx xxxx xxxx xxxxx Control Del:xxxxx xxxx xxxxx xxxxx xxxx xxxxx xxxxx xxxx xxxxx xxxxx xxxx xxxxx LOS by Move: * * * * * * * * * * * * Movement: LT - LTR - RT LT - LTR - RT LT - LTR - RT LT - LTR - RT Shared Cap.: xxxx xxxx xxxxx xxxx xxxx xxxxx xxxx 12 xxxxx xxxx xxxx xxxxx SharedQueue:xxxxx xxxx xxxxx xxxxx xxxx xxxxx xxxxx 1 7 xxxxx xxxxx xxxx xxxxx Shrd ConDel:xxxxx xxxx xxxxx xxxxx xxxx xxxxx xxxxx 563 xxxxx xxxxx xxxx xxxxx Shared LOS : * * * * * * * F * * * * ApproachDel: xxxxxx xxxxxx 563.1 xxxxxx ApproachLOS: * * F * ******************************************************************************** Note: Queue reported is the number of cars per lane. ******************************************************************************** Traffix 7.9.0215 (c) 2008 Dowling Assoc. Licensed to TJKM, PLEASANTON, CA ~,~~ ~ ~~ ~ ~~ Short Term Cumulative CondiThu Apr 10, 2008 14:53:04 Page 13-1 Arroyo Vista Housing Redevelopment Traffic Impact Study Short Term Cumulative Conditions AM -------------------------------------------------------------------------------- Level Of Service Computation Report 2000 HCM Unsignalized Method (Future Volume, Alternative) Intersection #12 Dougherty Road/N. Mariposa Drive ******************************************************************************** Average Delay (sec/veh): 0.5 Worst Case Level Of Service: F[294.2] Approach: North Bound South Bound East Bound West .Bound Movement : L - T - R L - T - R L - T - R L - T - R Control: Uncontrolled Uncontrolled Stop Sign Stop Sign Rights: Include Include Include Include Lanes : 1 0 2 0 0 0 0 1 1 0 0 0 1! 0 0 0 0 0 0 0 Volume Module: Base Vol: 3 1111 0 0 2436 5 3 0 3 0 0 0 Growth Adj: 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 Initial Bse: 3 1111 0 0 2436 5 3 0 3 0 0 0 Added Vol: 0 0 0 0 0 0 0 0 0 0 0 0 PasserByVOl: 0 0 0 0 0 0 0 0 0 ~0 0 0 Initial Fut: 3 1111 0 0 2436 5 3 0 3 0 0 0 User Adj: 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 PHF Adj: 0.97 0.97 0.97 0.97 0.97 0.97 0.97 0.97 0.97 0.97 0.97 0.97 PHF Volume: 3 1145 0 0 2511 5 3 0 3 0 0 0 Reduct Vol: 0 0 0 0 0 0 0 0 0 0 0 0 FinalVolume: 3 1145 0 0 2511 5 3 0 3 0 0 0 Critical Gap Module: Critical Gp: 4.1 xxxx xxxxx xxxxx xxxx xxxxx 6.8 6.5 6.9 xxxxx xxxx xxxxx Fo1lowUpTim: 2.2 xxxx xxxxx xxxxx xxxx xxxxx 3.5 4.0 3.3 xxxxx xxxx xxxxx ------------~---------------~~---------------II---------------~~---------------~ Capacity Module: Cnflict Vol: 2516 xxxx xxxxx xxxx xxxx xxxxx 3093 3665 1258 xxxx xxxx xxxxx Potent Cap.: 182 xxxx xxxxx xxxx xxxx xxxxx 9 5 165 xxxx xxxx xxxxx Move Cap.: 182 xxxx xxxxx xxxx xxxx xxxxx 9 5 165 xxxx xxxx xxxxx Volume/Cap: 0.02 xxxx xxxx xxxx xxxx xxxx 0.33 0.00 0.02 xxxx xxxx xxxx Level Of Service Module: 2Way95thQ: 0.1 xxxx xxxxx xxxx xxxx xxxxx xxxx xxxx ~~ ~~ ~~ ~~ Control Del: 25.1 xxxx xxxxx xxxxx xxxx xxxxx xxxxx xxxx xxxxx xxxxx xxxx xxxxx LOS by MOVe : D * * * * * * * * * * * Movement: LT - LTR - RT LT - LTR - RT- LT - LTR - RT LT - LTR - RT Shared Cap.: xxxx xxxx xxxxx xxxx xxxx xxxxx ~'~ 1e ~'~ ~~ xxxx ~~ SharedQueue:xxxxx xxxx xxxxx xxxxx xxxx xxxxx xxxxx 1.0 xxxxx xxxxx xxxx xxxxx Shrd ConDel:xxxxx xxxx xxxxx xxxxx xxxx xxxxx xxxxx 294 xxxxx xxxxx xxxx xxxxx Shared LOS: * * * * * * * F * * * * ApproachDel: xxxxxx xxxxxx 294.2 xxxxxx ApproachLOS: * * F * ******************************************************************************** Note: Queue reported is the number of cars per lane. ******************************************************************************** Traffix 7.9.0215 (c) 2008 Dowling Assoc. Licensed to TJKM, PLEASANTON, CA Short Term Cumulative CondiThu Apr 10, 2008 14:53:04 Page 14-1 Arroyo Vista Housing Redevelopment Traffic Impact Study Short Term Cumulative Conditions AM ------------------------------------------------------------------------------ Level Of Service Computation Report 2000 HCM Unsignalized Method (Future Volume Alternative) ******************************************************************************** Intersection #13 Dougherty Road/S. Mariposa Drive ******************************************************************************** Average Delay (sec/veh): 17.9 Worst Case Level Of Service: F[1408.5] ******************************************************************************** Approach: North Bound South Bound East Bound West Bound Movement : L - T - R L - T - R L - T - R L - T - R Control: Uncontrolled Uncontrolled Stop Sign Stop Sign Rights: Include Include Include Include Lanes : 1 0 2 0 0 0 0 1 1 0 0 0 1! 0 0 0 0 0 0 0 Volume Module: Base Vol: 18 1086 0 0 2338 11 28 0 16 0 0 0 Growth Adj: 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00. 1.00 Initial Bse: 18 1086 0 0 2338 11 28 0 16 0 0 0 Added Vol: 0 0 0 0 0 0 0 0 0 0 0 0 PasserByVol: 0 0 0 0 0 0 0 0 0 0 0 0 Initial Fut: 18 1086 0 0 2338 11 28 0 16 0 0 0 User Adj: 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 PHF Adj: 0.97 0.97 0.97 0.97 0.97 0.97 0.97 0.97 0.97 0.97 0.97 0.97 PHF Volume: 19 1120 0 0 2410 11 29 0 16 0 0 0 Reduct Vol: 0 0 0 0 0 0 0 0 0 0 0 0 FinalVolume: 19 1120 0 0 2410 11 29 0 16 0 0 0 ------------~---------------~~---------------}I---------------~~---------------~ Critical Gap Module: Critical Gp: 4.1 xxxx xxxxx xxxxx xxxx xxxxx 6.8 6.5 6.9 xxxxx xxxx xxxxx Fo1lowUpTim: 2.2 xxxx xxxxx xxxxx xxxx xxxxx 3.5 4.0 3.3 xxxxx xxxx xxxxx Capacity Module: Cnflict Vol: 2422 xxxx xxxxx xxxx xxxx xxxxx 3013 3573 1211 xxxx xxxx xxxxx Potent Cap.: 199 xxxx xxxxx xxxx xxxx xxxxx 11 6 177 xxxx xxxx xxxxx Move Cap.: 199 xxxx xxxxx xxxx xxxx xxxxx 10 5 177 xxxx xxxx xxxxx Volume/Cap: 0.09 xxxx xxxx xxxx xxxx xxxx 2.89 0.00 0.09 xxxx xxxx xxxx Level Of Service Module: 2Way95thQ: 0.3 xxxx xxxxx xxxx xxxx xxxxx xxxx xxxx xxxxx xxxx xxxx xxxxx Control Del: 25.0 xxxx xxxxx xxxxx xxxx xxxxx xxxxx xxxx xxxxx xxxxx xxxx xxxxx LOS by Move: C * * * * * * * * * * * Movement: LT - LTR - RT LT - LTR - RT LT - LTR - RT LT - LTR - RT Shared Cap.: xxxx xxxx xxxxx xxxx xxxx xxxxx xxxx 15 xxxxx xxxx xxxx xxxxx SharedQueue:xxxxx xxxx xxxxx xxxxx xxxx xxxxx xxxxx 6.4 xxxxx xxxxx xxxx xxxxx Shrd ConDel:xxxxx xxxx xxxxx xxxxx xxxx xxxxx xxxxx 1408 xxxxx xxxxx xxxx xxxxx Shared LOS: * * * * * * * F * * * * ApproachDel: xxxxxx xxxxxx 1408.5 xx~x ApproachLOS: * * F * ******************************************************************************** Note: Queue reported is the number of cars per lane. ******************************************************************************** Traffix 7.9.0215 (c) 2008 Dowling Assoc. Licensed to TJKM, PLEASANTON, CA ~.:~ Short Term Cumulative CondiThu Apr 10, 2008 14:53:04 Page 15-1 Arroyo Vista Housing Redevelopment Traffic Impact Study ~: Short Term Cumulative Conditions AM Level Of Service Computation Report. 2000 HCM Unsignalized Method (Future Volume Alternative) .,. Intersection #14 Dougherty Road/Monterey Drive ~, ******************************************************************************** Average Delay (sec/veh): 0.1 Worst Case Level Of Service: D[ 26.4] ******************************************************************************** Approach: North Bound South Bound East Bound West Bound Movement : L - T - R L - T - R L - T - R L - T - R Control: Uncontrolled Uncontrolled Stop Sign Stop Sign Rights: Include Include Include Include " Lanes : 1 0 2 0 0 0 0 1 1 0 0 0 0 0 1 0 0 0 0 0 ~ Volume Module: Base Vol: 9 1104 0 0 2354 0 0 0 8 0 0 0 Growth Adj: 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 Initial Bse: 9 1104 0 0 2354 0 0 0 8 0 0 0 Added Vol: 0 0 0 0 0 0 0 0 0 0 0 0 °^ PasserByVol: 0 0 0 0 0 0 0 0 0 0 0 0 Initial Fut: 9 1104 0 0 2354 0 0 0 8 0 0 0 User Adj: 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 PHF Adj: 0.97 0.97 0.97 0.97 0.97 0.97 0.97 0.97 0.97 0.97 0.97 0.97 PHF Volume: 9 1138 0 0 2427 0 0 0 8 0 0 0 Reduct Vol: 0 0 0 0 0 0 0 0 0 0 0 0 ~,,: FinalVOlume: 9 1138 0 0 2427 0 0 0 8 0 0 0 Critical Gap Module: Critical Gp: 4.1 xxxx xxxxx xxxxx xxxx xxxxx xxxxx xxxx 6.9 xxxxx xxxx xxxxx ~,, Fo1lowUpTim: 2.2 xxxx xxxxx xxxxx xxxx xxxxx xxxxx xxxx 3.3 xxxxx xxxx xxxxx Capacity Module: Cnflict-Vol: 2427 xxxx xxxxx xxxx xxxx xxxxx xxxx xxxx 1213 xxxx xxxx xxxxx Potent Cap.: 198 xxxx xxxxx xxxx xxxx xxxxx xxxx xxxx 177 xxxx xxxx xxxxx Move Cap.: 198 xxxx xxxxx xxxx xxxx xxxxx xxxx xxxx 177 xxxx xxxx xxxxx Volume/Cap: 0.05 xxxx xxxx xxxx xxxx xxxx xxxx xxxx 0.05 xxxx xxxx xxxx Level Of Service Module: 2Way95thQ: 0.1 xxxx xxxxx xxxx xxxx xxxxx xxrx xxxx 0.1 xxxx xxxx xxxxx Control Del: 24.1 xxxx xxxxx xxxxx xxxx xxxxx xxxxx xxxx 26.4 xxxxx xxxx xxxxx LOS by Move : C * * * * * * * D * * * Movement: LT - LTR - RT LT - LTR - RT LT - LTR - RT LT - LTR - RT Shared Cap.: xxxx xxxx xxxxx xxxx xxxx xxxxx xxxx xxxx xxxxx xxxx xxxx xxxxx SharedQueue:rxxxx xxxx xxxxx xxxxx xxxx xxxxx xxxxx xxxx xxxxx xxxxx xxxx xxxxx Shrd ConDel:xxxxx xxxx xxxxx xxxxx xxxx xxxxx xxxxx xxxx xxxxx xxxxx xxxx xxxxx Shared LOS : * * * * * * * * * * * * ApproachDel: xxxxxx xxxxxx 26.4 xxxxxx * ,~ ApproachLOS: * * D ******************************************************************************** .Note: Queue reported is the number of cars per lane. ~' ******************************************************************************** Traffix 7.9.0215 (c) 2008 Dowling Assoc. Licensed to TJKM, PLEASANTON, CA Short Term Cumulative CondiThu Apr 10, 2008 14:53:57 Page 1-1 -------------------------------------------------------------------------- Arroyo Vista Housing Redevelopment Traffic Impact Study Short Term Cumulative Conditions PM -------------------------------------------------------------------------- Scenario Report Scenario: Short Term Cumulative Conditions PM Command Volume: Geometry: Impact Fee: Trip Generation: Trip Distribution: Paths: Routes: Configuration: Short Term Cumulative Conditions PM Baseline PM 2015 lanes np Default Impact Fee Default Trip Generation Default Trip Distribution Default Path Default Route Existing PHF Traffix 7.9.0215 (c) 2008 Dowling Assoc. Licensed to TJKM, PLEASANTON, CA ~~~ ~` ~~ (i Short Term Cumulative CondiThu Apr 10, 2008 14:53:58 Page 2-1 Arroyo Vista Housing Redevelopment Traffic Impact Study Short Term Cumulative Conditions PM Level Of Service Computation Report CCTALOS Method (Future Volume Alternative) ~; Intersection #1 Dougherty Road /Amador Valley Boulevard ~, ****************************** ********************************** **************** Cycle (sec): 100 Critical Vol./Cap.(X): 1.001 Loss Time (sec): 0 (Y+R= 4.0 sec) Average Delay (sec/veh): xxxxxx Optimal Cycle: 180- Level Of Service: F ****************** ************ ********************************** ***** *********** Approach: Nor th Bound South Bound East Bound We st Bound Movement : L - T - R L - T - R L - T - R L - T - R Control: Pr otected Protected Split Phase Spl it Phase ~"' Rights: Include Include Include Include ~" Min. Green: 0 0 0 0 0 0 0 0 0 0 0 0 Lanes : 1 0 2 0 0 0 0 1 1 0 1 0 0 0 1 0 0 0 0 0 ------------~----- ----------~~ ---------------~~---------------~~ ----- ----------I ~` Volume Module: Base Vol: 466 1387 0 0 1198 519 345 0 390 0 0 0 °'~~ Growth Adj: 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 Initial Bse: 466 1387 0 0 1198 519 345 0 390 0 0 0 Mpr Added Vol: 0 0 0 0 0 0 0 0 0 0 0 0 PasserByVol: 0 0 0 0 0 0 0 0 0 0 0 0 ~_~ Initial Fut: 466 1387 0 0 1198 519 345 0 390 0 0 0 User Adj: 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 PHF Adj: 0.97 0.97 0.97 0.97 0.97 0.97 0.97 0.97 0.97 0.97 0.97 0.97 PHF Volume: 480 1430 0 0 1235 535 356 0 402 0 0 0 „,a, Reduct Vol: 0 0 0 0 0 0 0 0 0 0 0 0 Reduced Vol: 480 1430 0 0 1235 535 356 0 402 0 0 0 ~ RTOR Reduct: 0 0 0 0 0 0 0 0 402 0 0 0 RTOR Vol: 480 1430 0 0 1235 535 356 0 0 0 0 0 uµ PCE Adj: 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 MLF Adj: 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 ~ FinalVolume: 480 1430 0 0 1235 535 356 0 0 0 0 0 ------------~----- ----------~ ~---------------~~---------------~ ~---- -----------I ~; Saturation Flow Module: Sat/Lane: 1720 1720 .1720 1720 1720 1720 1720 1720 1720 1720 1720 1720 Adjustment: 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 Lanes: 1.00 2.00 0.00 0.00 1.40 0.60 1.00 0.00 1.00 0.00 0.00 0.00 Final Sat.: 1720 3440 0 0 2400 1040 1720 0 1720 0 0 0 Capacity Analysis Module: Vol/Sat: 0.28 0.42 0.00 0.00 0.51 0.51 0.21 0.00 0.00 0.00 0.00 0.00 Crit Volume: 480 885 356 0 Crit Moves: **** **** **** Traffix 7.9.0215 (c) 2008 Dowling Assoc. Licensed to TJKM, PLEASANTON, CA ~~ Q~ «~ y ::~~~ f ,, Short Term Cumulative CondiThu Apr 1'0, 2008 14:53:58 Page 3-1 Arroyo Vista Housing Redevelopment Traffic Impact Study Short Term Cumulative Conditions PM -------------------------------------------------------------------------------- Level Of Service Computation Report CCTALOS Method (Future Volume Alternative) ******************************************************************************** Intersection #2 Dougherty Road/Scarlett Drive ******************************************************************************** Cycle (sec): 100 Critical Vol./Cap.(X): 0.609 Loss Time (sec): 0 (Y+R=4.0 sec) Average Delay (sec/veh): xxxxxx Optimal Cycle: 48 Level Of Service: B ******************************************************************************** Approach: North Bound South Bound East Bound West Bound Movement : L - T - R L - T - R L - T - R L - T - R Control:. Protected Protected Permitted Permitted Rights: Include Include Include Include Min. Green: 0 0 0 0 0 0 0 0 0 0 0 0 Lanes: 1 0 2 0 1 2 0 2 0 1 0 0 1! 0 0 1 0 0 1 0 Volume Module: Base Vol: 64 1850 22 12 1561 22 12 1 44 27 1 16 Growth Adj: 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 Initial Bse: 64 1850 22 12 1561 22 12 1 44 27 1 16 Added Vol: 0 0 0 0 0 0 0 0 0 0 0 0 PasserByVol: 0 0 0 '`0' 0 0 0 0 0 0 0 0 Initial Fut: 64 1850 22 12 1561 22 12 1 44 27 1 16 User Adj: 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 PHF Adj: 0.97 0.97 0.97 0.97 0.97 0.97 0.97 0.97 0.97 0.97 0.97 0.97 PHF Volume: 66 1907 23 12 1609 23 12 1 45 28 1 16 Reduct Vol: 0 0 0 0 0 0 0 0 0 0 0 0 Reduced Vol: 66 1907 23 12 1609 23 12 1 45 28 1 16 RTOR Reduct: 0 0 23 0 0 12 0 0 0 0 0 0 RTOR Vol: 66 1907 0 12 1609 10 12 1 45 28 1 16 PCE Adj: 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 MLF Adj: 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 FinalVolume: 66 1907 0 12 1609 10 12 1 45 28 1 16 ------------~---------------~~---------------~~---------------~I---------------~ Saturation Flow Module: Sat/Lane: 1720 1720 1720 1720 1720 1720 1720 1720 1720 1720 1720 1720 Adjustment: 1.00 1.00 1.00 0.91 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 Lanes: 1.00 2.00 1.00 2.00 2.00 1.00 0.21 0.02 0.77 1.00 0.06 0.94 Final Sat.: 1720 3440 1720 3127 3440 1720 362 30 1328 1720 101 1619 ------------~---------------~~---------------~~---------------~I- --------------I Capacity Analysis Module: Vol/Sat: 0.04 0.55 0.00 0.00 0.47 0.01 0.03 0.03 0.03 0.02 0.01 0.01 Crit Volume: 954 6 59 28 Crit Moves: **** **** **** **** ******************************************************************************** Traffix 7.9.0215 (c) 2008 Dowling Assoc. Licensed to TJKM, PLEASANTON, CA (OD'rpc Z~~ ~` <! Short Term Cumulative CondiThu Apr 10, 2008 14:53:58 Page 4-1 Arroyo Vista Housing Redevelopment Traffic Impact Study Short Term Cumulative Conditions PM Level Of Service Computation Report CCTALOS Method (Future Volume Alternative) ,_,, Intersection #3 Dougherty Road /Sierra Lane er Cycle (sec): 100 Critical Vol./Cap.(X): 0.489 Loss Time (sec): 0 (Y+R= 4.0 sec) Average Delay (sec/veh) xxxxxx Optimal Cycle: 45 Level Of Service: A Approach: Nor th Bound South Bound East Bound we st Bound Movement : L - T - R L - T - R L - T - R L - T - R Control: Pr otected Protected Protected Pr otected ~ Rights: Include Include Include Include Min. Green: 0 0 0 0 0 0 0 0 0 0 0 0 Lanes : 1 0 2 1 0 1 0 2 1 0 1 0 1 0 1 1 0 0 1 0 ------------~----- ----------~~ ---------------~~---------------~I ----- ----------~ Volume Module: Base Vol: 70 1806 70 21 1544 67 100 6 106 20 6 30 gF° Growth Adj: 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 Initial Bse: 70 1806 70 21 1544 67 100 6 106 20 6 30 ~, Added Vol: 0 0 0 0 0 0 0 0 0 0 0 0 PasserByVol: 0 0 0 0 0 0 0 0 0 0 0 0 ;~; Initial Fut: 70 1806 70 21 1544 67 100 6 106 20 6 30 User Adj: 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 x.00 1.00 1.00 PHF Adj: 0.97 0.97 0.97 0.97 0.97 0.97 0.97 0.97 0.97 0.97 0.97 0.97 PHF Volume: 72 1862 72 22 1592 69 103 6 109 21 6 31 Reduct Vol: 0 0 0 0 0 0 0 0 0 0 0 0 Reduced Vol: 72 1862 72 22 1592 69 103 6 109 21 6 31 RTOR Reduct: 0 0 0 0 0 0 0 0 72 0 0 0 RTOR Vol: 72 1862 72 22 1592 69 103 6 37 21 6 31 PCE Adj: 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 MLF Adj: 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 "~ FinalVolume: 72 1862 72 22 1592 69 103 6 37 21 6 31 Saturation Flow Module: Sat/Lane: 1650 1650 1650 1650 1650 1650 1650 1650 1650 1650 1650 1650 Adjustment: 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 '~' Lanes: 1.00 2.89 0.11 1.00 2.88 0.12 1.00 1.00 1.00 1.00 0.17 0.83 Final Sat.: 1650 4765 185 1650 4744 206 1650 1650 1650 -----~~---------------I 1650 I---- 275 1375 -----------~ ------------I---- Capacity Analysis -----------I Module: ~---------- Vol/Sat: 0.04 0.39 0.39 0.01 0.34 0.34 0.06 0.00 0.02 0.01 0.02 0.02 Crit Volume: 645 22 103 37 Crit Moves: Traffix 7.9.0215 (c) 2008 Dowling Assoc. Licensed to TJKM, PLEASANTON, CA