HomeMy WebLinkAbout6.3 SpeedLmtGleasonDr
CITY CLERK
File # DI5JB)lJ-~CJ
AGENDA STATEMENT
CITY COUNCIL MEETING DATE: January 18. 2005
Public Hearing: Adoption of Speed Limits on Gleason Drive
Between Tassajam Road and Fallon Road and on Grafton Street
Between Gleason Drive and Antone Way
Report Prepared by: Melissa Morton, Public Worh Director
SUBJECT:
ATTACHMENTS:
1)
2)
3)
RECOMMENDATION: ~ i~
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FINANCIAL STATEMENT:
Draft Ordinance
Engineering Surveys (3 pages)
Location Map
Open Public Hearing and receive Staff Presentation
Take Testimony ftom the Public
Question Staff and the Public
Close the Public Hearing and deliberate
Waive the reading and itúl'ødlree the Ordinance (Attacbment
1) approving speed limits for Gleason Drive between
Tassajara Road and Fallon Road, and for Grafton Street
between Gleason Drive and Antone Way
Sufficient funds are budgeted in the Street Maintenance Operating
Budget for installation of speed limit signs.
DESCRIPTION: California Vehicle Code (CVe) Section 22358 provides that a local
agency may, by ordinance, adopt a speed limit which is "appropriate to facilitate the orderly movement of
traffic and is reasonable and safe" CVC Section 40802 provides that in order to use radar for enforcement
of speed limits on roadways which do not meet certain conditions, a local agency shall conduct engineering
surveys to support the posted speed limits. The conditions under which engineering surveys are NOT
required are: roadway width of 40 feet or less, less than one half mile of uninterrupted length, and not
more than one lane in each direction. Neither Gleason Drive nor Grafton Street meets all three conditions,
and engineering surveys are therefore required.
On December 7,2004, the Dublin City Council accepted Gleason Drive as constructed between Tassajam
Road and Fallon Road, as well as the portion of Grafton Street constructed between the boundary of
Dublin Ranch Phase I and Gleason Drive. It is now appropria,te for the City Council to review the
--------------------~-----------------_.--~--------------------
g:\"8"""';"'. gleason It. grafton spe<d limits
COPIES TO:
Co . 3
19J~
ITEM NO.
engineering survey results and adopt speed limits for the new portions of both Gleason DrivJ ~ ~rafton
Street.
Gleason Drive
Speed surveys were conducted for segments between Tassajara Road and Grafton Street and between
Grafton Street and Fallon Road. The 85tl¡ pereentile or eritieal speed was measured at 44 mph between
Tassajara Road and Grafton Street and at 46.3 mph between Grafton Street and Fallon Road. The 85th
percentile or critical speed is generally regarded as a "safe" speed. Eighty-five percent of the vehicles in
the survey sanlple were traveling at the eritieal speed or less.
An engineering survey also evaluates roadway conditions sueh as geometrics, land use, and proximity to
schools. Based on the measured critical speed and the existing speed limit of 40 mph on Gleason Drive
west of Tassajara Road, Staff feels that a speed limit of 40 mph is appropriate on both segments of
Gleason Drive between Tassajara Road and Fallon Road.
Grafton Street
The new portion of Grafion Street was extended from the Tract 6959 boundary to Gleason Drive. Within
Tract 6959, Grafton Street is a residential neighborhood street. The Grafton Street extension serves the
new Fallon Middle School, wbieb is presently under construction. Since this portion of Grafton Street
exceeds 40 feet in widtb, an cngineering survey is required.
The 85th percentile or critical speed was measured at 35 mpb. Since this street is in proximity to
residential areas and serves the frontage of a school, the survey recommends a speed limit of 25 mph as
appropriate.
Staff recommends that the City Council eonduet a public hearing, deliberate, waive the reading and
introduce the Ordinance (Attacluncnt 1) approving speed limits for Gleason Drive between Tassajara
Road and Fallon Road, and for Grafton Street between Gleason Drive and Antone Way.
Page 2 ~~
1.ttÞ
ORDINANCE NO. -05
AN ORDINANCE OF THE CITY COUNCIL
OF THE CITY OF DUBLIN
1111l1li.....*..
ESTABLISHING SPEED UMlTS ON GLEASON DRIVE BETWEEN
TASSAJARA ROAD AND FALLON ROAD AND ON GRAFTON STREET
BETWEEN ANTONE WAY AND GLEASON DRIVE
The City Council of the City of Dublin does ordain as follows:
Section 1: Pursuant to Dublin Municipal Code Section 6.04.340, speed limits shall be
established as follows:
Grafton Street:
From Antone Way to Gleason Drive, 25 miles per hour
Gleason Drive:
From Tassajara Road to Fallon Road, 40 miles per hour
Section 2. Said speed limits shall be added to City of Dublin Traffic Code Sections
6.60.010 (25 miles per hour) and 6.60.040 (40 miles per hour) respectively.
Section J: This ordinance shall become effective 30 days after its final passage and
adoption by the City Council. The City Clerk of the City of Dublin shall cause this
ordinance to be posted in at least three (3) public places in the City of Dublin in
accordance with Section 36933 of the Government Code of the State of California.
PASSED, APPROVED AND ADOPTED this day of
-
,2005.
AYES:
NOES:
ABSENT:
ABSTAIN:
Mayor
ATTEST:
City Clerk
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SPEEDLIMll\
,E~PJNEEE,*NG ITßÎl.FF1¡C SljIijx.!:¡;;¥ .
Street:
Gleason Drive
Limits: Tassaiara Rd. to Grafton St.
Length (feet): 2.375'
SPEEI11S ..._
Location of Survey:
1,200' east of
Tassa'ara Rd.
11/03/04
NA new
36-45 m h
78; 10' 12
44 m h
32-53 m h
Date Taken:
Posted Speed:
Pace Speed:
% in Pace, Above, Below
Critical Speed (85%)
Range of Speeds
~OADWAY ºES1GfjANºtgA¡;;¡;;J¢i:J'HAè¡:tt\'CTE~I§ttl:J$ ... '. .',
Width (ft.): 45'-88' No. of Lanes (Both Directions):
Average Daily Traffic: N.A. (new) Date Taken:
Special Conditions (Parking, Roadway Alignment, Land Use, School Area, etc,): 1 lane each
way near Tassaiara, then widens to 2 each way for eastern portion; Moderate "s" curve in road;
Undeveloped on both sides: No parkinQ allowed.
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2-4 (1-2 each way)
r AC¢IØ!;NT¢,H~RlI;'C1i~¡¡ì:I$~IC$':'., ...
Accident Period Analyzed: NA (new)
Number of Accidents (List Total and Each Year); NA (new)
Number of Speed Related Accidents (Total and Each Year): NA (new)
Calculated Accident Rate: NA (new) Statewide Average Rate:
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NA(new)
I SÜRVEY RE$ULTS ',;
Recommendations: Based on the measured critical
speed and the current speed limit of 40 mph on Gleason
Drive west of Tassaiara Road. a speed limit of 40 mph is
appropriate on this seqment of Gleason Drive.
I
Roadway Map
Study Prepared By: Omni-Means Enqineers & Planners
Date: 11/04 ~::7
Approved ~:~~¡I)¿ "';,...., Y )7A.7f7
Date: II /~
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Approved Speed Limit: 40 mph
Per CVC 40803, Survey Expires: 11/03/11
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ENGINEERrfllG ITRÆF.IC. SURVEY
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Street:
Gleason Drive
Limits: Grafton St. to Fallon Rd.
Length (feet): 2.110'
SPE:EDS
Location of Survey:
. ..
Date Taken:
Posted Speed:
Pace Speed:
% in Pace, Above, Below
Critical Speed (85%)
Range of Speeds
1,000' west of
Fallon Rd.
11/03/04
NA new
36-45 m h
78; 19' 3
46.3 m h
33-55 m h
I RQADWAY DESIGN AND TRAFFIC éHA~CTL1'Rr$tj¢$ ]
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Width (ft.): 89' No. of Lanes (Both Directions): 4 (2 each wav)
Average Daiiy Traffic: NA (new) Date Taken:
Special Conditions (Parking, Roadway Alignment, Land Use, School Area, etc.): 2 lanes each
wav with median: Moderate curve and qrade (uphill eastbound): Undeveloped on both sides: No
parkinq allowed.
i ACCIDI:NT CHARACTERiStICS
Accident Period Analyzed: NA (new)
Number of Aceidents (List Total and Each Year): N.A. (new)
Number of Speed Related Accidents (Total and Each Year): N.A. (new)
Calculated Accident Rate: NA (new) Statewide Average Rate: N.A. (new)
I $LJRVE)' gF;~t:JL:t$ .::;'.::.:
Recommendations: Based on the measured critical
speed and the eurrentlrecommended speed limit of 40 mph
on Gleason Drive west of Grafton Street, a speed limit of 40
mph is appropriate on this seQment of Gieason Drive.
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Roadway Map
Study Prepared By: Omni-Means Enqineers & Planners
Date: 11/04 "
APprOVe~y~~),. ,1'. ;AI yY },Jf"r-f)
Date: I'/."~ 'U",p /
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Approved Speed Limit: 40 mph
Per eve 40803, Survey Expires: 11/03/11
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SPEED:LI¡tiíI:f'
,EhlG1N,EERINGITR:",FFiC ,SURVEY
Street:
Grafton Street
limits: Gleason Drive to Antone Way
Length (feet): 1.850'
SPEEDS
Location of Survey:
Date Taken:
Posted Speed:
Pace Speed:
% in Pace, Above, Below
Critical Speed (85%)
Range of Speeds
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I ROADWAY ÐESI,Gf\lANPT~ÄFFflqC",~R~,t;!;1ig~I$1l'"!¢$ " _._,__
Width (ft.): 40'-58' No. of Lanes (Both Directions): 2 (1 each way)
Average Daily Traffic: N.A. (new seomen!) Date Taken: N.A (new seamen!)
Special Conditions (Parking, Roadway Alignment, Land Use, School Area, etc.): 1 lane each
way: Uphill orade northbound toward Castleton Ln.: Residential north of Castleton Ln.: Planned
residential south of Castleton Ln.: New school under construetion on west side.
I ACC![:¡pN.TCHA'rM,cr6RI$tlcS - -I
Accident Period Analyzed:N.A. (new seoment)
Number of Accidents (List Total and Each Year): N.A. (new seoment)
Number of Speed Related Accidents (Total and Eaeh Year): NA (new seoment)
Calculated Accident Rate: N.A. (new seamen!) Statewide Average Rate: N.A. (new)
ISUR,VEY !ie'$tJl..'l'S - , -, -. - _
Recommendations: This seament of Grafton Street is
a residential collector located within a school area. The Roadway Map
school is currently under construction. Therefore. a speed
limit of 25 mph is appropriate.
Study Prepared By: Omni-Means Enoineers & Planners
Date: 11/04 --=---1
Approved B¥: '7Y I.)' /, ;.-)..}" Y )2('zrz../
Date: ////~
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Approved Speed Limit: 25 mph
Per CVC 40802 and 40803, Survey Expires: 11/11/11
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