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CITY- OF SAN BERNARDINO -
q.ile No. 13.1S
REQUI!ST ~OR COUNCIL Ai
From:
Public Works/Engineering
Aut or zat on 0 , ze
RE~~bi.lICDMIN prol\lssional Consul tant Service
. 'A ...oFlf>,rovide Traffic Signal Timing
'~31""R 12 pu ~!a..n~ for the Coordi na ti on of
'" nH nAft~ln'raffic Signals Within the
Downtown Signal System
ROGER G. HARDGRAVE
Dept:
March 11, 1987
Date:
Synopsis of Previous Council action:
Approved at mid-year budget review and directed to place on Council
Agenda,
Recommended motion:
1) That the Purchasing Agent be authorized to issue a Purchase Order, not
to exceed $6,550.00 to Mr, 80b Wirts, Traffic Engineer, to analyse the
downtown traffic signal system timing; and to provide a written report
with recommendations and comprehensive timing plans, in accordance with
letter type proposal, dated November 26, 1986,
2) That the transfer of $6,550.00 from Account No. 001-306-53228,
"Accident Materials Repairs", to Account No. 001-305-53150.
"Professi onal/Contractural Servi ces", be authorized.
cc' Ray Schweitzer, City Administrator
Warren Knudson, Director - Finance
Contact penon:
Supporting data attached: Sta ff Report & Proposal Letter
FUNDING REQUIREMENTS: Amount: $6,500,00
Peter Liu
Phone:
5226
Ward:
1, 2
Source: (ACCT, NO.) 001-305-53150
(ACCT. DESCRIPTION) Professional Contractural Services
Finance: Ii... (! ~
Council Note.:
1
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Agenda Item No.
9:
-CI--t:1-OF SAN BERNARDICb - REQUIOr FOR COUNCIL AC'QDN
STAFF REPORT
Engineering Division has recently upgraded 19 traffic signals
within the Central Business District by replacing the electro-
mechanical controllers with solid state type 170 controllers.
The new controllers have been used in other locations and
proven to improve traffic circulation by reducing delays
subsequently reducing the potential for traffic accidents.
However, a revised progression timing plan is necessary to
utili ze the capabili ties of the new system, The current
Traffic Engineering Staff is unable to devote the necessary
time to a project of this magnitude without jeopardizing the
daily operation and other projects currently undertaken.
We contacted Mr. Bob Wirts who served as the City's Traffic
Engtneer for sixteen years and is currently providing
Professional Traffic Engineering Services for SANBAG and other
local governments in the region. Mr, Wirts presented a
reasonable quote of $6,550,00 to complete the first set of
Timing Plans for the P,M, peak hours, The work will include
all the tasks outlined in the attached proposal with the
exception of Task 4(b), An additional $2.400,00 may be
requi red if a second set of ti mi ng pl ans for the A.M. peak
hours is deemed necessary,
Mr, Wirts is uniquely well qualified to provide these services,
due to his long years of experience in operating the downtown
system. For this reason, no other proposals were solicited,
It is recommended that a transfer of funds be allocated for
accidents and material repair to hire Mr, Bob Wirts, Traffic
Engineer, to provide the needed timing plans,
3-11-87
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75.0264
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NOT 7D SCALE
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PROJECT SIGNAL LOCAllONS
3/11/87
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November 26, 1986
Mr. Roger Hardgrave
Director of Public Works/City Engineer
City of San Bernardino
300 North "D" Street
San Bernardino, CA 92418
Attention: Mr. Peter liu
City Traffic Engineer
RE: Proposal for Progressive Traffic
Signal Timing Plans
Dear Mr. Hardgrave:
I appreciate the opportunity of submitting this proposal
to provide the professional traffic engineering services needed
to provide traffic signal timing plans for the coordination of
all traffic signals within the Central Business District, from
"I" Street to Sierra Way, and Rialto Avenue to Ninth Street.
The following proposal is based upon your recent verbal request.
Scope of Work:
The tasks outlined below are predicated on the assumption
that all work will be done in close coordination with Mr. Peter
Liu, City Traffic Engineer.
Task 1 - Initial Meeting
The project will be started with a meeting with city
staff members and the consultant. The purpose of the meeting
will be to initiate the coordination process, determine city
policies and obtain city furnished materials,
Task 2 - Field Reviews and Data Collection
It is understood the city has five independent traffic
sig?al systems within the Central Business District. A field
reV1ew will be made of each system. Data will be collected
pertaining to existing hardware, software, and type and location
of interconnect. Traffic signal hardware and software venders
will be contacted for their input regarding efficient and eco-
nomical methods of cOmbining the systems.
Task 3 - Analysis and Recommendations
All data will be reviewed and analyzed. Findings, cost
estimates and recommendations will be provided in a written
report regarding the existing systems and how they should be
~ied together in order that comprehensive timing plans may be
implemented.
3/11/87
((:(())f9)Y
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Mr. Roger Hardgrave
proposal for progressive
Traffic Signal Timing Plans
November 26, 1986
Page 2
Task 4 - progressive Traffic Signal Timing Plans
(a) P.M. peak hours progressive traffic signal timing
plans will be developed for the Central Business District. The
new microcomputer program entitled PASSERII-84, developed by the
University of Texas, A & M, will be utilized for this task with
other acceptable traffic engineering techniques.
(b)
plans will
in (a).
A.M. peak hours progressive traffic signal timing
be developed using the same software and methods as
Task 5 - Final Field Review
After implementation of the progressive timing plans by
city forces, a field review will be made to determine if the
system is operating as planned. Adjustments will be made where
deemed appropriate,
Project Time Schedule
Task 1 7 calendar days
Task 2 21 calendar days
Task 3 21 calendar days
Task 4 70 calendar days
Task 5 7 calendar days
project Total, 126 calendar days (18 weeks)
2. Traffic signal and interconnect plans, if available,
with type and location of signal controller at each
intersection.
3. Distance and speed limit between signalized inter-
sections.
Project Management
All project management and engineering will be done by
~r. Robert R. Wirts, P.E.
3/11/87
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Mr. Roger Hardgrave
Proposal for progressive
Traffic Signal Timing Plans
November 26, 1986
Page 3
proposed Fee
It is proposed to do all the work as outlined under Tasks
1, 2, 3, 4(a) and 5 as follows:
Time and materials not to exceed $6,550.00.
It is proposed to do all the work as outlined under Task
4(b) as follows:
Time and materials not to exceed $2,400.00.
Hourly charges will be in accordance with the hourly
rates outlined below, upon which it is proposed that monthly
billings be made for work completed the previous month.
Rate/Hour
project Manager and Engineer
Draftsperson
Clerical
$50.00
$20.00
$12 . 00
I am very interested in being considered for this project
and believe the above proposal is responsive to your request.
Respectively submitted,
.~-~~
Rt~ert R. ~~rts, P.E.
Traffic and Transportation
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