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Home My WebLink About7.1 Stop Sign Vlg Pkwy at Wineberry WayCITY OF DUBLIN AGENDA STATEMENT City Council Meeting Date: September 13, 1993 SUBJECT: Stop Sign Request - Village Parkway at Wineberry Way Report by: Public Works Director Lee Thompson EXHIBITS ATTACHED: 1) 2) 3) 4) Letter from Homeowners Business Management representing Parkway Terrace Homeowners Adopted All-Way Stop Sign Warrants Copy of 1990 TJKM Report Location Map RECOMMENDATION: ~¥>'~Receive Staff presentation. FINANCIAL STATEMENT: The cost of installing stop signs on Village Parkway at Wineberry Way would be approximately $1,000 (including both signing and pavement marking). The approximate cost of a warrant study by TJKM would be $500 to $1,000. DESCRIFrION: At the July 26, 1993, meeting, the City Council reviewed a request from the Parkway Terrace Homeowners' Association for stop signs on Village Parkway at Wineberry Way. A copy of the written request is attached as Exhibit 1. Village Parkway is an arterial street which is designed to allow traffic to flow freely. When stop signs are installed which do not meet warrants, drivers tend to make rolling stops or disregard the signs altogether, which causes a hazard for other drivers or pedestrians. Also, stop signs increase air pollution due to the deceleration and acceleration of vehicles. In addition, this intersection is very close to Davona Drive, which is already controlled by all-way stop signs. It is hoped that the future signal at Davona Drive (not presently funded) would provide gaps in the northbound traffic which would aid in exiting the Wineberry neighborhood. Staff also contacted the City of San Ramon to see if any traffic control is planned in the future for the intersection of Village Parkway and Kimball, the next intersection north of Wineberry. According to San Ramon's transportation staff, there have been no requests for either stop signs or a signal at Kimball, and there is nothing planned at this time. Through comments from Mr. John Wagner, one of the subdivision residents, at the July 26th meeting, it was determined that visibility was restricted for drivers exiting Wineberry Way due to shrubbery in the City landscaping. That shrubbery has since been cut back. Staff was able to contact Mrs. Wagner on September 2nd, and she stated that it has helped to remove the shrubbery; however, the residents still have a difficult time exiting Wineberry Way at times when traffic is heavy on Village Parkway. Examples cited were traffic from the adjacent church or high school, or during the peak commute periods. Staff also contacted Ms. Henricksen. She stated that she had received some feedback from some of the homeowners that trimming the bushes had helped; however, they would not be able to see the total impact of the work until the schools are open. The school traffic creates the greatest difficulty in getting out of Wineberry Way. The City Council also requested that Staff review data from a previous stop sign study and provide an updated report. Volume Warrant When traffic counts are taken specifically for a stop sign study, counts are typically taken for a 24 hour period, and the volume of traffic entering the intersection for highest eight (not necessarily consecutive) hours is extracted and used as the total volume. The volume from the side street only is also totaled for the same eight-hours. These figures are then used to determine whether the intersection meets the volume warrant for all-way stop signs. The City's adopted stop,~sign warrants I CiTY bLERK ' ........................................................................................... [ Lcl !oH¢l i/'r' ITEM NO. ~_J_~_ COPIES TO: Kathryn Henricksen, Homeowr, er~-t~usmess Management John Wagner (Exhibit 2) require a minimum of 300 vehicles entering the intersection per hour for the highest eight hours and that the volume of traffic entering from the side street be at least 1/3 of the total volume. This location was evaluated by TJKM late in 1990, and it was felt that traffic from Wineberry Way would not meet warrants based on the required proportion of the total volume (see TJKM report, Exhibit 3). Actual machine and/or manual counts were not taken at that time. Based on recent Average Daily Traffic (ADT) counts, traffic has actually decreased somewhat on Village Parkway since the previous evaluation. The Wineberry neighborhood is a fully-constructed, closed subdivision which would not provide any significant change in traffic volume over the past three years. ~ There are approximately 200 residences within the Parkway Terrace subdivision, which Staff estimates may generate 600 to 1,000 vehicle trips from the subdivision in eight hours. To meet the warrant, the side street would need to generate about 3,600 vehicle trips, as the ADT on Village Parkway in the Spring of 1993 was 10,200. Therefore, Staff feels that the volume warrant would not be met. The number of trips generated from the subdivision is only a Staff estimate. If the City Council wishes, the City can ask TJKM to set a traffic counter to provide accurate data. Accident History_ Staff also reviewed the accident history for the Village Parkway/Wineberry intersection for the 1991, 1992, and 1993 calendar years and found that only one accident had occurred during this time. This was a 1991 hit and run accident involving a juvenile bicyclist riding southbound in the northbound bicycle lane of Village Parkway. The bicyclist was struck by a vehicle leaving Wineberry Way. This accident would not have been correctable by installing stop signs on Village Parkway since the bicyclist was traveling the wrong way. The City's adopted warrants for all-way stop sign installations specify five accidents within a 12-month period that are of a type susceptible to correction by installing stop signs. Therefore, this intersection does not meet the accident history warrant. Visibility The visibility warrant requires that sight distance on one or more approaches of the major street be restricted to less than 150 feet. Particularly since the shrubbery has been removed, visibility of northbound traffic is very clear. Visibility of southbound traffic is somewhat restricted by the configuration of the median; however, approaching vehicles can still be seen for more than 150 feet. Residential Area and School Zone Warrants This intersection does not meet the criteria for a residential area, nor is it part of an official elementary school route plan. Children attending Murray School on Davona Drive are able to cross at the Village Parkway/Davona intersection which is a three-way stop. Conclusions Staff recommends against installing stop signs on Village Parkway at Wineberry because (1) the intersection al;qW, a~s not ito meet warrants for an all-way stop; (2) the intersection is too close to the Davona Drive intersection where stop signs are already installed; and (3) the addition of another stop sign on Village Parkway may cause diversion of some traffic onto Davona Drive as a shortcut to Alcosta Boulevard, Davona Drive is a residential street which includes elementary school frontage. a: (9394) [august lagstvpww Page 2 HOMEOWNERS BUSINESS MANAGEMENT INC. July 14, 1993 Association Management and Accounting ~CEIVED City. Council ,.--.It.)' of 100 Civic Plaza Dublin, CA 94568 ~'. P~RWW. AY TE~,~C~' HO..~'~O..~WNE.~RS tqqOt"ItTICll~l/qwoP .qTG~q Ladies and Gentlemen: In a recent teler)hone conversation with Mehran Sepehri, our office w,xs advised that ms a result of '--' ~ * '~ wum,n does not perform ' ~- uuuget cuts, me CiEv of ~ -~': tra,,,u sradies based on citben reouests. ~erefore. the Parkway Terrace Homeowne~ ~sociation, representing 133. homeowners, m ,~u~t-,s yo~ ~.~.+;~- ~d review of ,-~ having stop signs installed on VfllaAe P~k~vay at Winebe~- Way. Village Park~vay and '-* ....*' - ,- the area ........ ~s n~, v ........ three-way "~ ~l/;.~k~.~, ~I/ ..... the 0 l~,~C,lO,* ~* sig~. With co--ute ~d Mgh school ~affic combined, it b emreme~ d~cMt to negotiate s*~ely ~om Wineber~, Way. g_q a matter of public s~e~, the Pa_rlovay Terrace Homeowners _Association respecrfi2l_ly requcst~ that the council consider th~ stop sign installation as well as the reinstatement of traffic studies pursuant to citizen requests. Thank you for your anticipated attention to this matter. Sincerely, HOMEOW'~RS BUS[NESS MANAGEMENT, FNC. Kath~ He~ic~en Proper~ Manager KH.ew.ltr068 1855 Gateway Boulevard, Suite 340 · Concord, CA 94520 (510) 687-1855 WARRANTS FOR ALL-WAY STOP SIGN INSTALLATION (Adopted by City Council Resolution 119-92 9/28/92) A fully-justified, properly installed all-way stop can effectively assign right-of- way, reduce vehicle delay, and decrease accidents. All-way stop sign installation may be considered if any of the following conditions exist' 1. VOLUME (a) (b) Total vehicular volume entering the intersection from all approaches must average 350 vehicles per hour for a four-way intersection OR 300 vehicles per hour for a T-intersect, ion for any eight hours of an average day. The eight hours need not be consecutive. In addition, the combined vehicular and pedestrian volume entering the intersection from the minor street or streets for the same eight hours must average at least 1/3 of the total volume entering the intersection. 2. ACCIDENTS Five or more reported accidents within a 12-month period and of a type susceptible to correction by installation of all-way stop sig~s. 3. VISIBILITY The intersection sight-distance (based on Caltrans standards) on one or more approaches of the major street is less than 150 feet. 4. RESIDENTIAL AREA Warrants are to be reduced to 60% of the values in Section 1 and 2 above if ALL of the following conditions are met: (a) (b) (c) (d) (e) (f) Both streets are residential streets with existing 25 mph speed limits. Neither street is an adopted through street. Neither street exceeds 40 feet of roadway width. No existing stop sign or signal is located on the more heavily traveled street within a distance of 600 feet. Streets extend 600 feet or more away from the intersection on at least three sides. Installation of a all-way stop is compatible with overall traffic circulation needs for the residential area. 5. ELEMENTARY SCHOOL CROSSING This warrant is satisfied by the conditions in EITHER (a) OR (b) below Students cross the more heavily traveled street at the intersection as part of an official elementary school route plan, and if ALL of the following conditions are met: (1) Ail of the conditions in Section 4 Residential Area (a through f) are met. (b) (2) The more heavily traveled street has more than 280 feet intersection sight distance visibility (based on Caltrans standards). (3) The elementary school route plan has been approved by the Public Works Director/City Engineer. 0~ More than 20 elementary school children per hour cross the more heavily traveled street going to or from school at a time when at least 300 vehicles are in direct conflict with pedestrians, AND if all of the following conditions are met: (1) The more heavily traveled street has adequate intersection sight distance visibility (based on Caltrans standards) for the 85th percentile speed o__~r speed limit of the major street, whichever is higher. (2) No existing stop sign, signal, or crosswalk is located on the major street within a distance of 600 feet. (3) Installation of an all-way stop is compatible with overall traffic circulation needs. Lee Thompson -2- October 22, 1990 Wineberry Way at Village Parkway This is a three-way intersection with STOP sign control on the minor Wineberry Way east approach only. Village Parkway is as described above. Wineberry Way is the minor street. It is a two-lane undivided east-west collector serving single-f~mily driveways at a posted s .peed of 25 miles per hour (mph.) It has sepaxa~e left-and right-turn lanes. Parallel curb parking is provided on both sides of the street. Adequate sight distance is available for traffic entering Village Parkway. No all- way stop or other intersection traffic control improvements appear to be warranted. Carlow Way at Bandon Drive This is a three-way intersection with STOP sign control on the minor Carlow Way west approach only. Bandon Drive is the major street. It is a two-lane undivided north-south local street serving single-family driveways at a posted speed of 25 mph. It has shared left-and right-turn lanes. Parallel curb parking is provided on both sides of the street. Carlow Way is the minor street. It is a two-lane undivided east-west local street serving single-family driveways at a posted speed of 25 mph. It has shared left-and right-turn lanes. Parallel curb parking is provided on both sides of the street. No all-way STOP or other intersection traffic control improvemenks appear to be warranted. Briarwood Lane at Bandon DHve This is a three-way intersection with STOP sign control on the minor Briarwood Lane east approach only. Band0n Drive is the major street. It is a two-lane undivided north-south local street serving single-family driveways at a posted speed of 25 mph. It has shared left-and right-turn lanes. Parallel curb parking is provided on both sides of the street. Briarwood Lane is the minor street. It is a two-lane undivided east-west local street serving single-family driveways at a posted speed of 25 mph. It has shared left-and right-turn lanes. Parallel curb parking is provided on both sides of the street. No all-way STOP or other intersection traffic control improvements appear to be warranted. 15%001 ' Iqqo ff~a~o~.~' ~ -rom DOUGHERT¥ KOLB PARK t OgF~CES ! 5"to P /oo