HomeMy WebLinkAboutAgenda Statement 1985/01/29 Item 7 COUNCIL AGENDA STATEMENT
Item 7
Meeting Date 1/29/85
ITEM TITLE: Resolution //( /lP Approving Agreement between PRC
Engineering and the City of Chula Vista for the preparation of
a Signal System Improvement Study
SUBMITTED BY: Director of Public Works/
City Engineer (4/5ths Vote: Yes No X )
REVIEWED BY: City Manager,
A Citywide traffic signal system improvement study was approved in the 1983-84
Capital Improvement Program. This study is to identify critical deficiencies
within the existing signal system, evaluate various control strategies and
equipment improvements for the system and recommend appropriate action to
implement improvements. The consulting firm of PRC Engineering has been
selected to perform the study.
RECOM+IENDATION: That Council adopt the attached resolution approving an
agreement between PRC Engineering and the City for the preparation of a Signal
System Improvement Study.
BOARDS/COMMISSIONS RECOMMENDATION: Not applicable.
DISCUSSION:
The City of Chula Vista has experienced tremendous growth in population during
the past decade with an obvious increase in traffic congestion. There is an
ever-increasing demand for new and improved streets throughout the area. Due
to increasing traffic on our streets, there is a need to improve traffic flow
in the City to improve capacity and decrease "stop and go" traffic.
There are currently approximately 99 signalized intersections within the Chula
Vista influence area; of these, 73 are located within the City.
The City's circulation element can be divided into two areas. In the area
west of I-805 the network is made up of north/south and east/west streets in a
quarter mile grid. In this grid there are approximately 42 traffic signals
controlled by an existing interconnect system. East of I-805 the circulation
element is characterized by major arterials with no established grid.
The existing computerized centrally controlled traffic signal interconnect
system is not capable of controlling multiphase traffic-actuated signals. The
increases in traffic volumes have made it necessary to install multiphase
traffic-actuated signals on several arterials resulting in a break in the
system and increased fuel consumption and delay. Because of limited funds
available for costly capital improvements for construction, it is imperative
that the existing street system performance be maximized through relatively
low cost signal system improvements to untie bottlenecks, reduce travel time,
save gasoline and cut accident rates.
TPage 2, Item 7
Meeting Date 1/29/85
tudy to provide the information required to evaluate the costs and benefits
an improved traffic signal system for the City was included in the 1983-84
ital Improvement Program with $40,000 funding from the Traffic Signal Fund.
April 1984, a Technical Steering Committee was formed which consists of
resentatives from CalTrans, San Diego County, City of San Diego, Federal
hway Administration, and the City of Chula Vista. Over the months, this
mittee has developed the study format, requested proposals from qualified
sultants, interviewed consultants, and made a consultant selection. Of the
e consulting firms submitting proposals, the firm of PRC Engineering was
ected based on the following:
. Their proposal responded more directly to the Request for Proposals.
They had more demonstrated competence and experience in this type of
project. (It is noted that they have recently completed a similar
project for the City of San Diego. )
. The Project Manager, Mr. Khal Shah, and the Principal-in-Charge,
Donald G. Capelle, are highly respected in this field of expertise.
The steering committee was impressed with these individuals and their
technical staff.
. They indicate considerably more staff effort to the project,
especially with the Project Manager.
. Although their proposal was not the cheapest, the overall cost based
on the effort proposed is very competitive.
study will take approximately 5 months to complete and will be divided
o the following tasks:
Task 1 Inventory and Appraisal
Task 2 Analysis of Existing System
Task 3 Comparison of Control Strategies and Recommendation of
Improvements
Task 4 Final Report
cost of the study will be $33,750. (Proposals ranged from $28,813 to
,000. )
opy of the study proposal is available in the Council 's office for your
usal. A copy of the Request for Proposal is attached hereto as Exhibit 1 .
CAL IMPACT: The 1983-84 Capital Improvement Program includes $40,000
the Traffic Signal Fund to cover the cost of the study.
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1361E
by . City Council of a
Chula Vise, California �\
Dated /-