HomeMy WebLinkAbout8.5 TriValleyTriangleStudy
CITY CLERK
File # D[jJ9l[Q]-[aJ[Q]
AGENDA STATEMENT
CITY COUNCIL MEETING DATE: February 1, 2005
SUBJECT:
Establishment of New Capital Improvement Program (CIP)
Project - Tri-Valley Triangle Study
Report Prepared by: Ray Kuzbari, Traffic Engineer
A TT ACHMENTS:
I)
2)
Area Map of the Triangle Study Corridor
Budget Change Forn1
RECOMMENDATION: I)
~2)
Establish a new Capital Improvement Program Project -
Tti- Valley Triangle Study
Approve a budget change in the amount of $58,500 to cover
Dublin's share of the cost to refine the CCTA travel demand
model and develop an operational model for the Tti-Valley
Triangle Study
FINANCIAL STATEMENT:
The Alameda County Congestion Management Agency Board (also
known as the CMA Board) has approved the scope of work and
budget of $400,000 for preparation of the Tri-Valley Triangle Study_
The Technical Advisory Committee for the study has reviewed the
scope of work and determined that additional work pertaining to
travel demand and traffic operations modeling will be needed to
accurately reflect traffic conditions within the study area. Staff
proposes that Council appropriate $58,500 in General Funds to fund
Dublin's share of the cost to refine the CCT A travel demand model
and develop an operational model for the Tri-Valley Triangle Study.
DESCRIPTION: The CMA Board approved the scope of work and budget of
$400,000 for preparation of the Tri-Valley Triangle Study (Study). The purpose of the Study is to develop
a sequencing strategy for improvements identified in the Alameda Countywide Transportation Plan for the
1-580,1-680 and Route 84 corridors (see Attachment 1 - Area Map). It was assumed by the CMA that this
effort would take advantage of the work currently under contract for environmental studies for the
eastbound 1-580 HOV lane. It was also assumed that funding for the Study would be minimized by using
the travel demand model and traffic operational model already developed for the HOV lane.
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COPIES TO: Jean Hart, CMA
Rob Wilson, City of Pleasant on
Cheri Sheets, City of Livermore
ITEM NO.
8.1
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The Technical Advisory Committee (TAC) for the Study has reviewed the scope of work and the models
to be used in the analysis. Based on this review, the TAC has recommended the following changes to the
scope of work: I) Use of the CCTAlDublin travel demand model (CCTA Model); 2) use of alternative
land uses assuming the cities' General Plan buildout; 3) use of planning horizon year 2025;
4) modification to the method for modeling travel over the Altamont Pass; 5) use of more detailed local
network; 6) incorporation of peak hour spreading; and 7) inclusion of network alternatives beyond those
currently identified in the Alameda Countywide Transportation Plan. In addition, the TAC has
recommended that an alternative operational model be considered. The T AC will review technical reports
in February and March 2005, and tl1en recommend an operational model for the Study. Depending on the
final selection of the operational model, the additional cost to complete the Study is $70,000 to $175,000,
for a total cost of $470,000 to $575,000. The CMA has indicated that the consultants on the Study will be
given a notice-to-proceed once the CMA has received assurance for reimbursement for the additional
costs. The T AC anticipates completion of tl1e Study within one year of the start date.
The additional cost to complete the Study will be attributed to performing the following work: (1) Refine
the CCT A Model to accurately reflect existing and buildout conditions within the study area, including
local network details and land use assumptions, and (2) develop a detailed operational model to identify
local impacts, test alternative improvements, and determine an optimal sequencing strategy for
improvements. Since the CMA has already appropriated $400,000 for the Study and the additional work
will spccifically address local traffic impacts in Dublin, Livermore and Pleasanton, it is appropriate that
the three cities share the cost of this additional work.
Additional Modeline: Work
The additional cost to refine the CCT A Model and develop an operational model should not exceed
$175,000, based on cost estimates provided by the Study consultants. This modeling work should be
initiated as soon as possible in order to avoid any delay to the completion schedule of the Study. As such,
Staff recommends that the City Council appropriate $58,500 in General Funds to cover one-third of the
additional cost to refine the CCTA Model and develop the operational model. The CCTA Model has
already been calibrated for Dublin conditions, and a similar calibration process will need to take place for
Livermore and Pleasanton, as well as for the Tri -Valley region as a whole.
As mentioned above, the Study T AC is currently in the process of selecting an operational model that wi11
uti.lize the traffic forecasts obtained from the CCT A Model to simulate in detail the corresponding traffic
impacts on selected local arterials under alternative roadway improvements. The final selection of the
operational model should be made by April 2005, and the total cost for the additional modeling work
should not exceed $175,000.
The Cities of Livermore and Pleasanton will each take a similar action to fund their share of the cost for
the additional modeling work.
Recommendation
Staff recommends that the City Council establish a new Capital Improvement Program Project -
Tri-Valley Triangle Study, and approve a budget change in the amount of$58,500 to cover Dublin's share
of the cost to refine the CCTA travel demand model and develop an operational model for the Tri-Valley
Triangle Study.
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CITY OF DUBLIN
BUDGET CHANGE FORM
9-0b"":J.
CHANGE FORM #
New Appropriation' (City Council Approval Required):
Budget Transfers:
From Budgeted Contingent Rcserve (10800-799.000)
Within Same Department Activity
__ Between Departments (City Couocil Approval Required)
Other
~x_ From Unappropriated Reserves
(If Other than General Fund); Fund No.
From New Revenues
Name:
Name;
Td-Vaney Triangle Study--
Consultant Servic:es
(Expense)
I
$58,500
Account #;
Namc;
Account #:
Namc;
001-94520-740-000
Account #;
Account #;
Name:
Name
Account #;
Namc;
Account #;
Name;
Account #;
Namc;
Account #:
Name:
Account #:
Account #;
ASD/Fin Mgr
(1..~Y~~
Signat
Date: ~
REASON FOR BUDGET CHANGE ENTRY:
To cover Dublin's share of the additional cost to refine the CCTA travel demand model and develop an
operational model for the Tri-Valley Triangle Study.
City Manager:
Date:
Signature
As approved at fue City Council Meeting on: Date:
Mayor:
Date:
Signature
Posted By:
D>t,,·
Signature
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