HomeMy WebLinkAboutItem 6.2 SpeedLimitGleasonDr
CITY CLERK
File # íTS1r9lØJ-~[Q]
AGENDA STATEMENT
CITY COUNCil MEETING DATE: February 1, 2005
SUBJECT:
ATTACHMENTS:
RECOMMENDATI~
1)
2)
3)
4)
5)
FINANCIAL STATEMENT:
Public Hearing: Adoption of Speed Limits on Gleason Drive
Between Tassajara Road and Fallon Road and on Grafton Street
Between Gleason Drive and Antone Way
Report Prepared by: Melissa Morton, Public Works Director
I)
2)
3)
Ordinance
Engineering Surveys (3 pages)
Location Map
Open Public Hearing and receive Staff Presentation
Take Testimony from the Public
Question Staff and the Public
Close the Public Hearing and Deliberate
Waive the reading and adopt the Ordinance (Attachment!)
approving speed limits for Gleason Drivc bctwccn Tassajara
Road and Fallon Road, and for Grafton Street between
Gleason Drive and Antone Way
Sufficicnt funds are budgeted in the Street Maintenance Operating
Budget for the installation of speed limit signs.
DESCRIPTION: This is the second reading of a proposcd ordinance that was
introduccd at the January 18th City Council meeting. California Yehicle Code (CYC) Section 22358
provides that a local agency may, by ordinance, adopt a speed limit which is "appropriate to tacilitate
the orderly movement of traffic and is reasonable and safe," eye 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 cngineering surveys to support the posted speed limits. The conditions under which
engineering surveys are NOT required are: roadway width of 40 fcet 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 arc thcrefore required.
On December 7,2004, the Dublin City Council accepted Gleason Drive as constructed between Tassajara
Road and Fallon Road, as well as the portion of Grafton Strcet constructcd between the boundary of
Dublin Ranch Phase I and Gleason Drive. It is now appropriate for the City Council to review the
ø______________________________________________________________
g:\agenmisc\a.gst gleason & gralluD speed limits
COPIES TO:
ITEM NO.~
liJ'oL
!Y
engineering survcy results and adopt speed limits for the new portions of both Gleason Drive and Grafton
Street.
Glcason Drive
Speed surveys were conducted for segments betwecn Tassajara Road and Grafton Strcct and bctween
Grafton Street and Fallon Road. The 85th percentile or critical 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 sample were traveling at thc critical speed or less.
An engineering survey also evaluatcs roadway conditions such 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 believes that a speed limit of 40 mph is appropriate on both segments of
Gleason Drive bctwecn Tassajara Road and Fallon Road.
Grafton Street
The new portion of Grafton Street was extcnded from the Tract 6959 boundary to Gleason Drive. Within
Tract 6959, Grafton Street is a residential neighborhood strcet. The Grafton Street extension scrves the
ncw Fallon Middle School, which is presently under construction. Since this portion of Grafton Street
exceeds 40 fcet in width, an enginccring survcy is required.
The 85th percentile or critical speed was measured at 35 mph. Sinee this strcet is in proximity to
residcntial areas and serves the frontage of a school, the survey recommcnds a speed limit of 25 mph as
appropriate.
Staffrecommends that the City Council conduct a public hearing, deliberate, waive the reading and adopt
the Ordinance (Attachment I) approving speed limits for Gleason Drive between Tassajara Road and
Fallon Road, and for Grafton Street between Gleason Drive and Antone Way.
Page 2 ~'?.....
ICVS'
ORDINANCE NO. -05
AN ORDINANCE OF THE CITY COUNCIL
OF THE CITY OF DUBLIN
*********
ESTABLISHING SPEED LIMITS ON GLEASON DRIVE BETWEEN
TASSAJARA ROAD AND FALLON ROAD AND ON GRAFI'ON 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 3: 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 eity of Dublin in
accordance with Section 36933 of the Government Code of the State of California.
PASSED, APPROVED AND ADOPTED this 1st day of February, 2005.
AYES:
NOES:
ABSENT:
ABSTAIN:
Mayor
AITEST:
City Clerk
g:iQgellmlJclon/i_ce gleas01l & groftoll speed limits.doc
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SPEEDU~IT
6NGIt!JE.E.RII\rG1 TR./Îi'ÞFJC SURVEY
Street:
Gleason Drive
limits: Grafton St. to Fallon Rd.
Length (feet): 2,110'
SPEEDS
Loc:ation of Survey:
Date Taken:
Posted Speed:
Pace Speed:
% in Pace, Above, Below
Critic:al Speed (85%)
Range of Speeds
I ROADWAY D¡::SIGN AND TRAFFIC ¢HA~Jl.çTE.RIST!9$
Width (ft.): 89' No. of Lanes (Both Directions): 4 (2 each wav)
Average Dally Traffic: NA (new) Date Taken:
Special Conditions (Parking, Roadway Alignment, Land Use, School Area, etc.): 2 lanes each
wav with median: Moderate curve and orade (uphill eastbound): Undeveloped on both sides: No
parklno allowed.
I ACCIDENTCHARAÇT£5~I$'tIC$ -l
Accident Period Analyzed: NA (new)
Number of Accidents (List Total and Each Year): N,A. (new)
Number of Speed Related Accidents (Total and Each Year): NA (new)
Calculated Accident Rate: NA (new) Statewide Average Rate: N.A. (new)
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sURVey R¡::$bl4:t<> L;':, ". ':"'.!":
Recommendations: Based on the measured critical
speed and the current/recommended speed limit of 40 mph
on Gleason Drive west of Grafton Street. a speed limit of 40
mph is appropriate on this seoment of Gleason Drive.
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Roadway Map
Study Prepared By: Omni-Means Enclneers & Planners
Date: 11/04 . ::J
APprove~y~ >v /,; 4"" '7'r'rf'rY
Date: ,,/, /Ç, ., ø
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Approved Speed Limit: 40 mph
Per cve 40803, Survey Expires: 11/03/11
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SPEEDLlIVi:F¡i:
,E!NGltI.IgE~JNG r Tß:~'fFJC s !Rc~!!E¥
Street:
Gleason Drive
Limits: Tassaiara Rd. to Grafton St.
Length (feet): 2.375'
SPEE[)S
Location of Survey:
..
Date Taken:
Posted Speed:
Pace Speed:
% in Pace, Above, Below
Critical Speed (85%)
Range of Speeds
I ROADWAY [JESt$NAN[¡)TRi¡i¡FF!¡¡¡ØH:Ä~,!I:CTE~¡:~fi:l:þ~" " ,'.' . <:,':;-
Width (fl.): 45'-88' No, of Lanes (Both Directions): 2-4 (1-2 each wav)
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.
I ACCU¡¡~NT al·¡'1;J'i~@t!;f~J$;iÎ;'IC$,:,
Accident Period Analyzed: N.A. (new)
Number of Accidents (List Total and Each Year): N.A. (new)
Number of Speed Related Accidents (Total and Each Year): N.A. (new)
Calcuiated Accident Rate: N.A. (new) Statewide Average Rate:
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N.A. (new)
¡ SURVEY RESUL.TS
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.
Roadway Map
Study Prepared By: Omni-Means Enoineers & Planners
Date: 11/04 ~ 3
Approved ~:t=~11( /;.;'...A r ):¿¡'.?'i7
Date: II /0$.' /
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Approved Speed Limit: 40 mph
Per evc 40803, Survey Expires: 11/03/11
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ENGINEE.R.INqInMfEIC SURyeŸ
Street:
Limits: Gleason Drive to Antone Way
Length (feet): 1 ,850'
Grafton Street
SpeEDS
Location of Survey:
Date Taken:
Posted Speed:
Pace Speed:
% in Pace, Above, Below
Critical Speed (85%)
Range ef Speeds
I ROADWAYbES!G.NAN[)·tRA:F¡;;:lCCF!:a;~@;,..eªISm.Þ$.. J
Width (ft.): 40'-58' No. of Lanes (Both Directions): 2 (1 each wav)
Average Daily Traffic: N.A. (new seament) Date Taken: N.A (new seamen!)
Special Conditions (Parking, Roadway Alignment, Land Use, School Area, etc.): 1 lane each
waY: Uohill orade northbound toward Castleton Ln.: Residential north of Castleton Ln.: Planned
residential south of Castleton Ln.: New school under construction on west side.
I ACCIi;>EN,'yCH,G¡Ii»:CTBRIS-¡\ICS
Accident Period Analyzed:N.A. (new seqment)
Number of Accidents (List Total and Each Year): N.A. (new seament)
Number of Speed Related Accidents (Total and Each Year): N.A. (new seament\
Calculated Accident Rate: N.A. (new seqment) Statewide Average Rate: N.A. (new)
I SURV.EY R'~:$l:/L;TS ....~.
Recommendations: This seament of Grafton Street is
a residential collector located within a school area. The
school is currentlv under construction. Therefore, a speed
limit of 25 mph is appropriate.
Roadway Map
IJtI'1Ð í( fIJ. .
Study Prepared By: Omni-Means Enqineers & Planners
Date: 11/04 j
Approved B:f yy 1).,/,;',-,)'7 Y )2~h7
Date: ////~
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Approved Speed Limit: 25 mph
Per evc 40802 and 40803, Survey Expires: 11111/11
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