HomeMy WebLinkAbout9/8/2010 - STAFF REPORTS - 2.K. ���Q A LM sA�
�y
U Ifs
k co"
n�
R onwro r
City Council Staff Re Port
Date: September 8, 2010 CONSENT CALENDAR
Subject: APPROVAL OF PLANS, SPECIFICATIONS AND ESTIMATE (PS&E)
AND AUTHORIZATION TO BID FOR THE INDIAN CANYON DRIVE AT
VISTA CHINO TRAFFIC SIGNAL MODIFICATION, CITY PROJECT 08-17
From: David H. Ready, City Manager
Initiated by: Public Works and Engineering Department
SUMMARY
The Public Works and Engineering Department has scheduled improvements to the
existing traffic signal at Indian Canyon Drive and Vista Chino. The construction
documents (Plans, Specifications and Estimate) are completed and, in accordance with
7.03.040 of the Procurement and Contracting Code the Council is required to approve
and adopt plans, specifications and working details, and authorize the bid request for all
public projects in excess of$100,000. Approval of this project will allow staff to proceed
with this public project, with an estimated cost of approximately $200,000.
RECOMMENDATION:
Approve the plans, specifications and working details for the Indian Canyon Drive at
Vista Chino Traffic Signal Modification, City Project 08-17, and authorize staff to
advertise and solicit bids.
STAFF ANALYSIS:
The Public Works and Engineering Department included modification of the existing
traffic signal at the Indian Canyon Drive and Vista Chino intersection in the 2008/2009
and 2010/2011 fiscal year budgets. Currently, the existing traffic signal has no left-turn
phasing in any direction, which makes turning left difficult during peak hours of traffic at
this highly congested intersection. Vista Chino is also State Highway 111, and Caltrans
operates and maintains this traffic signal. However, the state has no plans or budget to
modify or improve the operation of the traffic signal. Therefore, in the 2008/2009
budget, Council allocated funds for the City's design of modifications to the traffic signal.
On October 8, 2008, the City Manager approved a contract services agreement with
Albert Grover & Associates in the amount of $15,985 for the design of this project.
Item No. 2oK *
City Council Staff Report
September 8, 2010- Page 2
Indian Canyon Dr. /Vista Chino Traffic Signal Modification (CP08-17)
Since that time, the City's consultant has coordinated the design of the traffic signal
modification with Caltrans, and Caltrans has approved the final design and authorized
its construction.
Typical of other recently modified traffic signals, the traffic signal has been designed
with protected/permissive signal phasing on Indian Canyon Drive. The City originally
proposed protected/permissive phasing on Indian Canyon Drive and Vista Chino, but
Caltrans has not yet approved of protected/permissive phasing of its traffic signals and
is requiring separate protected left-turn phasing on Vista Chino (however, it has allowed
protected/permissive phasing on Indian Canyon Drive). A protected/permissive signal is
one that has a five-section vehicle head on the signal mast arm, shown at right below,
and has a five-section vehicle head on the far pole, shown at left below:
+Mr w„�
Y 7
Y6
This type of signal phasing allows traffic to move through the intersection more
efficiently, giving left-turning vehicles a "permissive" movement, allowing the turn when
there are no opposing vehicles. In a true "protected" phase, a vehicle must wait for the
green arrow to make the movement, whether or not there is opposing traffic.
The plans and specifications have been prepared by the City's engineering consultant
(Albert Grover & Associates). Caltrans has approved the City's proposed traffic signal
modification, and the plans are ready for Council approval and the subsequent
advertisement for construction bids. Section 7.03.040 of the Procurement and
Contracting Code requires that for public projects in excess of $100,000 Council
approve and adopt the plans, specifications and working details, and authorize staff to
advertise for construction bids. The Engineer's Estimate for this project is $200,000.
Approval of the recommended action will allow staff to proceed with bidding of this
project.
FISCAL IMPACT:
Funding for this project is made available through local Measure A funds in account
134-4498-50271. No local miscellaneous General Funds are being used for this
project.
2 ..
City Council Staff Report
September 8, 2010 - Page 3
Indian Canyon Dr. /Vista Chino Traffic Signal Modification (CP08-17)
SUBMITTED:
Prepared by- Recommended by-
Marcus L. Fuller David J. Barakian
Assistant Director of Public Works Director of Public Works/City Engineer
Approved by:
Thomas J. Wili6n, Asst. City Manager David H. Ready, @153WAger
4