HomeMy WebLinkAbout6.3 Speed ChangesCITY CLERK # 0590-20
AGENDA STATEMENT
CITY COUNCIL MEETING DATE: April 4, 2000
SUBJF_,CT:
Public Hearing: Speed Limit Changes and Additions for Amador
Valley Boulevard (Amador Plaza to Village Pkwy.), Arnold Road,
Dougherty Road (Park Sierra to Monterey), Gleason Drive (Arnold
Road to Hacienda Drive), Hacienda Drive, and St. Patrick Way
Report Prepared by: Lee S. Thompson, Public Works Director
ATTACHMENTS:
1)
2)
3)
4)
5)
Draft Ordinance
Location Maps
Copy of CVC Section 40802 (Speed Traps)
List of survey results for all streets surveyed
A copy of the complete book of engineering surveys is
available in the Public Works Department and will also be
available at the City Council meeting.
RECOMMENDATION:
1)
4)
5)
6)
Open Public Hearing
Receive Staff presentation
Receive public testimony
Close public hearing
Deliberate
Waive reading and introduce ordinance establishing speed
limits on. Amador Valley Boulevard (Amador Plaza to
Village Pkwy.), Arnold Road, Dougherty Road (Park Sierra
to Monterey), Gleason Drive (Arnold Road to Hacienda
Drive), Hacienda Drive, and St. Patrick Way
FINANCIAL STATEMENT:
Sufficient funds for speed limit signs have been budgeted in the
Street Maintenance Operating Budget
DESCRIPTION: California Vehicle Code Section 40802 specifies that engineering
and traffic surveys (speed surveys) must be conducted every five years for certain types of roadways in
order to allow speed limit enforcement by use of radar (see Attachment 3). Staff recently conducted
speed surveys on a number of City streets for which the surveys had expired, or for which there were no
pre-existing surveys (See Attachment 4).
The engineering (speed) survey results include the 85th percentile or "critical" speed and other pertinent
criteria such as roadway geometrics and accident history. The "85th percentile speed" (85% of the traffic
travels at this speed or less) is generally considered a "safe speed" unless the other criteria indicate that
the safe speed should be less. For example, it is recommended that residential streets retain their 25 mph
speed limit even if the critical speed is higher. The court considers the survey resuks when determining
g:\agenmisc\speed limit changes
COPIES TO:
ITEM NO.
whether a citation for speeding should be upheld. Therefore, posted speed limits should conform to the
survey recommendations as much as possible.
Speed limits are not recommended to change on most of the surveyed streets. Following are the
recommended changes or additions and the reasoning for the recommendation:
Existing
Street Segment Posted Speed Recommended Discussion
Limit Speed Limit
Amador Valley Blvd. from When the speed limit was changed on' the
Amador Plaza to Village 35 mph 30 mph westerly portion of Amador Valley Blvd., this
Parkway segment was not surveyed due to construction. It
is now recommended that this segment be
changed to 30 mph for consistency with the rest
of the commercial portion of the street.
Arnold Road from Dublin This roadway was not previously surveyed. The
Blvd. to GleasonDrive 35 mph 40 mph posted speed limit is a holdover from Arnold
(not adopted) Road's previous status as part of Camp Parks and
has not been adopted by the City. Speed survey
results indicate that 40 mph is appropriate for this
segment.
Dougherty Road from The previous survey for Dougherty Road
Park Sierra entrance to 35 mph 40 mph identified the transition point from 35 mph to 40
Monterey (±600 feet) mph as Monterey Drive, which is the
southernmost entrance into Arroyo Vista. The
traffic signal at the Park Sierra entrance (future
Scarlett Drive extension) now provides a more
appropriate divider between the two speed limits.
Gleason Drive (Arnold Gleason Drive does not have a current posted
Road to Hacienda Drive) None 40 mph speed limit. The speed survey results indicate that
40 mph is appropriate for this arterial. The
remainder of Gleason Drive will be surveyed after
construction is complete.
Hacienda Drive (Dublin 45 mph 35 mph When this segment of Hacienda Drive was
Blvd. toi-580) originally constructed, there were no adjacent
businesses. Since that time, both business and
residential uses have been added, and the 85th
percentile speed has decreased.
Hacienda Drive (Dublin None 35 mph This roadway segment has not been previously
Blvd. to Gleason) surveyed. The survey indicates that 35 mph is
appropriate.
St. Patrick Way None 25 mph The 85th percentile speed indicates that a 25 mph
speed limit is appropriate at this time. It is further
recommended that this street be re-surveyed once
the 1-680 ramps are open.
It is proposed to re-survey Dublin Boulevard east of Hacienda Drive after the construction between the
creek and Tassajara Road has been completed. It is not possible to achieve'an accurate survey at this
time. It appears that the critical speed will be lower than the current posted 50 mph speed limit, and Staff
will return to the City Council with a recommendation as soon as the new survey can be taken.
Staff recommends that the City Council conduct a public hearing, deliberate, waive the reading and
introduce the ordinance establishing speed limits on. Amador Valley Boulevard-(Amador Plaza to
Village Pkwy.), Arnold Road, Dougherty Road (Park Sierra to Monterey), Gleason Drive (Arnold to
Hacienda), Hacienda Drive, and St. Patrick Way.
Page 2
ORDINANCE NO. -00
AN ORDINANCE OF THE CITY OF DUBLIN
ESTABLISHING SPEED LIMITS ON AMADOR VALLEY BOULEVARD (AMADOR PLAZA
TO VILLAGE PARKWAY), ARNOLD ROAD, DOUGHERTY ROAD (PARK SIERRA TO
MONTEREY), GLEASON DRIVE, HACIENDA DRIVE, AND ST. PATRICK WAY
The City Council of the City of Dublin does ordain as follows:
Section 1: Pursuant to section 6.04.340 of the Dublin Municipal Code, and in the interest of public
safety, speed limits are established as follows:
Amador Valley Boulevard (Amador Plaza Road to Village Parkway)
Arnold Road (Dublin Boulevard to Gleason Drive)
Dougherty Road (Park Sierra Entrance to Monterey)
Gleason Drive (Arnold Road to Hacienda Drive)
Hacienda Drive (1-580 to Gleason Drive)
St. Patrick Way
30 mph
40 mph
40 mph
40 mph
35 mph
25 mph
Section 2: Said speed limits shall be included in Chapter 6.60 of the City of Dublin Traffic Code.
Section 3: This ordinance shall become effective 30 days alter 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 ,2000.
AYES:
NOES:
ABSENT:
ABSTAIN:
ATTEST:
Mayor
City Clerk
g: ktgenmisc~speed limit ordinance
i., ,,,,A'T ACHMENT
BLVD.
· ptaza to Village pKv~Y J
DoUGHERTY ROAD 40 MPH
Sierra entrance to Monterey)
HACIENDA DRivE 35 MPH
(I-580 to Gle.ason)
ARNOLD ROAD 40MPH IIi
(Dublin Blvd. to Gleason)
' WAIS Document Retrieval Page 1 of 2
40802. (a) A "speed trap" is either of the following:
(1) A particular section of a highway measured as to distance and
with boundaries marked, designated, or otherwise determined in order
that the speed of a vehicle may be calculated by securing the time it
takes the vehicle to travel the known distance.
(2) A particular section of a highway with a prima facie speed
limit that is provided by this code or by local ordinance under
subparagraph (A) of paragraph (2) of subdivision (a) of Section
22352, or established under Section 22354, 22357, 22358, or 22358.3,
if that prima facie speed limit is not justified by an engineering
and traffic survey conducted within five years prior to the date of
the alleged violation, and enforcement, of the speed limit involves
the use of radar or any other electronic device that measures the
speed of moving objects. This paragraph does not apply to a local
street, road, or school zone.
(b) (1) For purposes of this section, a local street or road is
defined by the latest functional usage and federal-aid system maps
submitted to the federal Highway Administration, except that when
these maps have not been submitted, or when the street or road is not
shown on the maps, a "local street or road" means a street or road
that primarily provides access to abutting residential property and
meets the following three conditions:
(A) Roadway width of not more than 40 feet.
(B) Not more than one-half of a mile of uninterrupted length.
Interruptions shall include official traffic control signals as
defined in Section 445.
(C) Not more than one traffic lane in each direction.
(2) For purposes of this section "school zone" means that area of
road contiguous to a school building or the grounds thereof, and on
which is posted a standard "SCHOOL" warning sign, while children are
going to or leaving the school either during school hours or during
the noon recess period.
(c) (1) When all of the following criteria are met, paragraph (2)
of this subdivision shall be applicable and subdivision (a) shall not
be applicable:
(A) When radar is used, the arresting officer has successfully
completed a radar operator course of not less than 24 hours on the
use of police traffic radar, and the course was approved and
certified by the Commission on Peace Officer Standards and Training.
(B) When laser or any other electronic device is used to measure
the speed of moving objects, the arresting officer has successfully
completed the training required in subparagraph (A) and an additional
training course of not less than two hours approved and certified by
the Coramission'on Peace Officer Standards and Training.
(C) (i) The prosecution proved that the arresting officer complied
with subparagraphs (A) and (B) and that an engineering and traffic
survey has been conducted in accordance with subparagraph (B) of
paragraph (2). The prosecution proved that, prior to the officer
issuing the notice to appear, the arresting officer established that
the radar, laser, or other electronic device conformed to the
requirements of subparagraph (D).
(ii) The prosecution proved the speed of the accused was unsafe
for the conditions present at the time of alleged violation unless
the citation was for a violation of Section 22349, 22356, or 22406.
(D) The radar, laser, or other electronic device used to measure
the speed of the accused meets or exceeds the minimal operational
standards of the National Traffic Highway Safety Administration, and
has been calibrated within the three years prior to the date of the
alleged violation by an independent certified laser or radar repair
and testing or calibration facility.
http://www.leginfo.ca .... /waisgate?WAISdoclD=3673815320
WAIS Document Retrieval Page 2 of 2
(2) A "speed trap" is either of the following:
(A) A particular section of a highway measured as to distance and
with boundaries marked, designated, or otherwise determined in order
that the speed of a vehicle may be calculated by securing the time it
takes the vehicle to travel the known distance.
(B) (i) A particular section of a highway or state highway with a
prima facie speed limit that is provided by this code or by local
ordinance under subparagraph (A) of paragraph (2) of subdivision (a)
of Section 22352, or established under Section 22354, 22357, 22358,
or 22358.3, if that prima facie speed limit is not justified by an
engineering and traffic survey conducted within one of the following
time periods, prior to the date of the alleged violation, and
enforcement of the speed limit involves the use of radar or any other
electronic device that measures the speed of moving Objects: (I) Except as specified in subclause (II), seven years.
(II) If an engineering and traffic survey was conducted more than
seven years prior to the date of the alleged violation, and a
registered engineer evaluates the section of the highway and
determines that no significant changes in roadway or traffic
conditions have occurred, including, but not limited to, changes in
adjoining property or land use, roadway width, or traffic volume, 10
years.
(ii) This subparagraph does not apply to a local street, road, or
school zone.
40803. (a) No evidence as to the speed of a vehicle upon a highway
shall be admitted in any court upon the trial of any person in any
prosecution under this code upon a charge involving the speed of a
vehicle when the evidence is based upon or obtained from or by the
maintenance or use of a speedtrap.
(b) In any prosecution under this code of a charge involving the
speed of a vehicle, where enforcement involves the use of radar or
other electronic devices which measure the speed of moving objects,
the prosecution shall establish, as part of its prima facie case,
that the evidence or testimony presented is not based upon a
speedtrap as defined in paragraph (2) of subdivision (a) of Section
40802.
(c) When a traffic and engineering survey is required pursuant to
paragraph (2) of subdivision (a) of Section 40802, evidence that a
traffic and engineering survey has been conducted within five years
of the date of the alleged violation or evidence that the offense was
committed on a local street or road as defined in paragraph (2) of
subdivision (a) of Section 40802 shall constitute a prima facie case
that the evidence or testimony is not based upon a speedtrap as
defined in paragraph (2) of subdivision (a) of Section 40802.
http://www.leginfo, ca .... /waisgate?wAIS doclD=3673815320+ 1 +0+0&WAIS action=retriev 03/22/2000
Table 1
Radar Speed Survey Locationsm
Survey Street
Study Segment
Posted Critical
Speed Speed
(mph) (mph) Recommendation
1. Amador Plaza Road Amador Valley Blvd. to Dublin Boulevard
30 ~ 33.7 No change
o
4.
5.
6.
7.
8.
9.
10.
11.
12.
South of Dublin Boulevard
Amador Valley Blvd. Amador Plaza Rd. to Village Parkway
Village Parkway to Stagecoach
Stagecoach to Dougherty
Arnold Road
Bandon Drive
Dublin to Gleason
Kimball to Davona
Bay Laurel Street Inspiration Circle to Silvergate
Bellina Street
Betlen Drive
San Ramon Rd. to Galindo Dr.
East of Circle Way
Brighton Drive Langmuir to Amador Valley
Central Parkway Hacienda to creek
Clark Avenue
Dublin to Maple
South of Dublin Blvd.
Davona Drive Alcosta to Village Parkway
Dougherty Road
13. Dublin Blvd.
North of Amador Valley
Monterey to Amador Valley
Park Sierra Access Rd. to Monterey
Dublin to Park Sierra Access Rd.
14.
15.
Hacienda Drive to Creek
Dougherty to Scarlett Drive
Sierra Court to Amador Plaza
Amador Plaza to Golden Gate
San Ramon to Silvergate
West of Silvergate to Inspiration Dr.
Gleason Drive Arnold to Hacienda
Golden Gate Drive South of Dublin Boulevard
30 UC See text
35 35 See text
25 31 No change
35 37.3 No change
35 41.7 See text
25 29.6 No change
25 26.7 No change
25 24 See text
25 26.7 No change
25 31.5 See text
35 35.7 See text
25 26.6 No change
30 29.1 No change
25 30.4 See text
45 50.7 No change
40 48 See text
NPSL 47 See text
35 39.8 See text
50 42.3 See text
35 37 No change
35 40.1 No change
35 32.6 No change
35 39.2 No change
40 46.2 See text
NPSL 40.8 See text
30 29 No change
Radar Speed Survey Analysis
for the City of Dublin
Table 1 (Continued)
Radar Speed Survey Locationsm
Survey Street
Study Segment
Posted Critical
Speed Speed
(mph) (mph)
Recommendation
16. Hacienda Drive
17. Hansen Drive
18. Inspiration Drive
19. Peppertree Road
20. Regional Street
21. San Ramon Road
22. Scarlett Court
23. Scarlett Drive
24. Shannon Avenue
25. Sierra Court
26. Southwick Drive
27. St. Patrick Way
28. Village Parkway
Dublin Boulevard to 1-580
Central to Gleason
Manzanita Lane to Dublin Blvd.
Dublin Boulevard to Inspiration Circle
West Vomac to Silvergate
North of Dublin Boulevard
South of Dublin Boulevard
Alcosta to Vomac
Dublin to Amador Valley
South of Dubiin Blvd.
Dublin Boulevard to Scarlett Court
Peppertree to San Ramon Road
San Ramon Road to Vomac
North of Dublin Boulevard
Alcosta to Beckett
Golden Gate to Amador Plaza Rd.
Dublin Boulevard to Tamarack
Tamarack to City Limit
45 34.6 See text
NPSL 38.5 See text
25 33.9 See text
25 28.2 No change
25 30.5 See text
30 31.7 No change
30 31.5 No change
40 47.5 See text
40 45 See text
30 37.5 No change
35 35.7 No change
25 31.4 See text
25 29.3 See text
30 34.9 No change
25 32.5 See text
NPSL 27.3 See text
30 34.2 No change
35 39.4 'No change
(1)
Omni-Means Engineers & Planners, Radar speed surveys conducted for the City of
Dublin, November-December, 1999 and January-February, 2000.
NPSL = No posted speed limit.
UC = Under construction.
Radar Speed Survey Analysis
for the City of Dublin
7