City of Culver City, California
Agenda Item Report
Meeting Date: 08/13/12 Item Number: A-2
CITY COUNCIL AGENDA ITEM: Approve as Permanent the Ten Temporary Speed
Humps Installed on Culver Park Drive and Segrell Way.
Contact Person/Dept.: Gabe Garcia Phone Number: 310-253-5633
Fiscal Impact: Yes [] No [X] General Fund: Yes [] No [X]
Public Hearing: [] Action Item: [X] Attachments: [X]
Commission Action Required: Yes [] No [X] Date: _______________
Public Notification: (E-Mail) Agenda and Meetings – City Council (08/09/12); (Mail)
Residents and Property Owners of Culver Park Drive and Segrell Way (08/08/12); (E-
mail) Fire Chief Sellers (08/08/2012); (E-mail) Police Chief Pedersen (08/08/2012)
Department Approval:
Charles D. Herbertson (08/03/12)
City Attorney Approval:
Carol Schwab (by H. Baker) (08/08/12)
Chief Financial Officer Approval:
Jeff Muir (08/08/12)
City Manager Approval:
John M. Nachbar (08/09/12)
RECOMMENDATION:
Staff recommends the City Council approve as permanent the ten temporary speed
humps installed on Culver Park Drive and Segrell Way.
BACKGROUND/DISCUSSION:
On August 8, 2011, the City Council authorized the temporary installation of asphalt
speed humps on Culver Park Drive and Segrell Way, between Sawtelle Boulevard
and Slauson Avenue, with the goal of speed-calming traffic using these two streets
to avoid the Sepulveda Boulevard widening project which was underway at that time.
(City Council report is attached). The City Council directed that staff return in
approximately six months to one year after the installation of the temporary speed
humps and report on their effectiveness at reducing speeds. Based on the
information provided in this report, the City Council would determine if the speed
humps should be removed or approved as permanent installations. The temporary
speed humps were installed on September 8, 2011. The Sepulveda Boulevard
widening project was completed on November 15, 2011.
Prior to the installation of the temporary speed humps, staff recorded speeds on
Culver Park Drive and Segrell Way that are higher than desirable: The 85
th
percentile|1010| speed ranged from 36 to 38 miles per hour. Both streets are residential
streets with 25 miles per hour speed limits.
Several months after the installation, staff again conducted radar speed surveys on
both streets to determine the 85
th
percentile speeds. Such surveys were conducted
|1010| The 85
th
percentile speed is the speed at or below which 85% of the drivers in a study sample of free-flowing vehicles
travel. City of Culver City, California
Agenda Item Report
in February, March, and April, 2012. The results of the studies show that the 85
th
percentile speeds were as follows:
February, 2012 March, 2012 April, 2012
Culver Park Drive 25 mph 23 mph 24 mph
Segrell Way 25 mph 27 mph 26 mph
Culver Park Drive shows an 85
th
percentile range between 23 to 25 miles per hour,
as compared to 36 to 38 miles per hour prior to the speed hump installation. Segrell
Way shows an 85
th
percentile range between 25 to 27 miles per hour, as compared
to 36 to 38 miles per hour prior to the speed hump installation. Based on the recent
data, staff concludes that the goal of reducing speeds has been successfully
accomplished by the temporary speed humps and recommends that the City Council
approve the speed humps as permanent installations.
FISCAL ANALYSIS:
There will be no cost if the City Council designates the ten temporary asphalt speed
humps permanent. If the City Council directs that the speed humps be removed, the
demolition of the speed humps will require that the roadway surface be repaired.
The estimated cost of removal and road surface repair is approximately $10,000.
ATTACHMENT:
1. City Council report of August 8, 2011.
MOTIONS:
That the City Council:
1A (Staff Recommendation) Approve as permanent the ten speed humps
installed on Culver Park Drive and Segrell Way.
OR
1B. Direct that the ten temporary speed humps installed on Culver Park Drive
and Segrell Way be removed.
MEETING DATE: 8/13/12
AGENDA ITEM: Approve as Permanent Speed-Calming
Measures, the Five Speed Humps Installed
on Culver Park Drive and the Five Installed
on Segrell Way, between Sawtelle Boulevard
and Slauson Avenue.
ATTACHMENT
Pages
1 Staff Report of August 8, 2011 1-4 :poporppoo!:::mpoot
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Aft moK() :y r*::::ISI.011er) (081030 , 1)
Carol Schwab (by H Bake
city Manager Approval:
tohn M. NaPhbar: (08/031,11)
City of Culver City, California
Agenda Item Report
IVIeeting,Da e 08i08/2.411
3
Item umber: A-
3
CITY COUNCIL AGENDA ITEM: Approval of the 40000E:!::Huoiwoo
a Temporary Basis, on Culver Park Drive and on Segrell yvoyoolt iott.00ty$0*(10;0::
Boulevard and Slauson Avenue
Contact Person/Dept Gabe Garcia/1 3W
phoop;p40.0*ot‘
Fisca•l lrnpac . •e [X
General Fund
iI
Public Hearing :
Action lter f
Attachments: [X}
Corflniissi n A 1.3eq,pifad: es 19. ::et[g] Date:
. .
Public
•
Agenda
• •
•••:
c
Residents and property oner59 .:. :
•
mail) Fire chief Sellers (C8!03/2011):
(
•
RECOMMENDATION:
Staff recommends that the City Council approve the installation of speed humps, on
a temporary basis, on Culver Park Drive and Segrell Way, between Sawtelle
Boulevard and Slauson Avenue.
BACKGROUND/ DISCUSSION:
The Sepulveda Boulevard Widening Project, which is currently under construction, is
widening Sepulveda Boulevard between Green Valley Circle and Jefferson
Boulevard-Playa Street. Upon its conclusion, it will provide a third southbound travel
lane to Sepulveda Boulevard, thereby reducing traffic congestion.
In anticipation of the expected (but temporary) traffic impacts of this project, before
the start of the project, an extensive signage program was implemented that : 1)
provides guidance to motorists through alternate routes, circumventing the project
area and its congestion; and 2) gives notice to the motoring public that adjacent
residential streets are for local traffic only. Compliance with such guidance is
appreciated, but it is not legally enforceable. Despite the City's best efforts, it has
been observed that some motorists, instead of opting for alternate routes, continue
to use the adjacent residential streets in the vicinity to avoid the project area.
The Public Works Department, at community meetings prior to the start of the
project, committed to protect the residential streets from the consequences of
construction traffic by implementing the following plan: 1) To observe traffic in the
adjacent residential areas during the course of the project; 2) To determine if
•• •
1 City of Culver City, California
Agenda Item Report
negative impacts were being experienced; and 3) based on such observations, staff
would consult with the residents in the impacted neighborhoods. Because of the
project congestion on Sepulveda Boulevard, staff has observed that cut-through
traffic has increased on Segrell Way and Culver Park Drive_ Additionally staff has
recorded speeds that are higher than desirable on residential streets, ranging from
36 to 38 miles per hour.
Staff held a community meeting with the residents of the two affected streets on
June
30th
at City Hall. The purpose of the meeting was to inform the residents of
staffs findings and to present the temporary installation of speed humps to address
the observed high traveling speeds and cut-through traffic. Approximately 22
residents attended the meeting, and they filled out an Advisory Survey to express
their opinion regarding the speed humps. The Advisory Surveys indicated, 77% in
support and 23% against installing temporary speed humps. Additionally, on their
own initiative and in anticipation of the meeting, the residents circulated a petition to
express support for the temporary installation of speed humps. The petition was
signed by 88 of the 158 residences on the two streets, and it indicates 56% in
support_ In both cases, a majority of the residents supports the temporary
installation of speed humps.
An effective program to address the observed speeds on the two residential streets
requires a total of five asphalt speed humps per street, distributed over the length of
the each street (approximately 2,200 feet). If the City Council approves, staff will
work with the residents of the adjacent parcels in determining the exact placement of
the speed humps. The graphics on the next page illustrate their potential placement.
Also, attached is a check list used in doing an engineering analysis that determined
speed humps were appropriate for the subject locations.
[Please see the following page] MAIM
On Culver Park
Drive and on
Segrell Way,
between
Sawtelle
Boulevard and
Berryman
Avenue, two
speed humps
are proposed on
each street
segment.
• NE PROPOSED
• SPEED HUMP
L GC Arial
On Culver Park
Drive and on
Seg reit Way;
between
Berryman
Avenue and
Slauson
Avenue, three.
: speed humps
are proposed: on
each Street
segment.
PROPOSED
SPEED HUMP
LOCATION
City of Culver City, California
Agenda Item Report City of Culver City, California
Agenda Item Report
Generally, speed humps are 12-foot long in the direction of travel, with a height of
approximately 2-518 inches to 2-3/4 inches at the crest. They are not installed in
alignment with drive approaches, over man holes, or on top of underground utility
valves. Also, speed humps are not installed into the gutters, so as not to impede
drainage flow.
The investment in addressing this speeding issue on a temporary basis is significant.
Speeding has been documented for many years, but has not been successfully
addressed through the Neighborhood Traffic Management Program (NTMP) on
several attempts over 20 years, due to failure of the neighborhood to reach
consensus numbers, as required by the adopted NTMP guidelines. Because of the
historic speeding and the cost for the temporary solution, staff proposes to return to
the City Council and provide a report on its effectiveness about six months to one
year after the construction project has concluded. If the solution has been
successful at reducing speeds, staff will propose that the City Council consider
authorizing the speed humps to remain permanently installed.
FISCAL ANALYSIS:
The proposed ten (10) speed humps are estimated to cost about $23,000 ($2,300
each), and related signage striping is estimated at around $3,500 and would be
funded through the Sepulveda Boulevard Widening Project, P-881 local match
funds.
ATTACHMENT:
1. Speed Hump Analysis Check List
MOTIONS:
That the City Council:
1. Authorize the installation of speed humps, on a temporary basis, on Culver
Park Drive and on SegreII Way, between Sawtelle Boulevard and Slauson
Avenue; and
2. Authorize the Public Works Director and City Engineer to execute a Change
Order to P-881, in amount not to exceed $23,000 for the construction of 10
speed humps and $3,500 for related striping and signage.
4