Council Agenda - City of Burbank

Tuesday, May 18, 2004

Agenda Item - 5


 

CITY OF BURBANK

PUBLIC WORKS DEPARTMENT

MEMORANDUM

 

 

DATE: May 18, 2004
TO: Mary Alvord, City Manager
FROM:

Bruce S. Feng, Deputy City Manager/Public Works & Capital Projects

By: Kenneth Johnson, Traffic Engineer

SUBJECT: RESOLUTION APPROVING THE FINAL CHANGE ORDER FOR BID SCHEDULE NO. 1124, INSTALLATION OF VEHICLE AND PEDESTRIAN DETECTION SYSTEMS AT VARIOUS INTERSECTIONS


PURPOSE:

 

Staff requests City Council approval of the final change order for Bid Schedule No.  1124, Installation of Vehicle and Pedestrian Detection Systems at Various Intersections.

 

BACKGROUND:

 

The City Council approved two traffic signal improvement programs in Fiscal Year 1999/2000 to modernize existing older traffic signal installations.  The first project provided $175,000 per year for the installation of pedestrian pushbuttons and pedestrian signal heads at approximately three locations, and the second project allocated $150,000 per year for the installation of about four vehicle detection systems (detector loops) each year.  Both programs were funded with Gas Tax monies, and the improvement programs were projected to require five to six years to completely upgrade the signal systems.  The programmed improvements were needed to improve the traffic signal flexibility and improved response times to serve constantly growing, variable traffic demand.

 

When completed, this project will modernize ten existing traffic signal systems, to enable improved traffic signal timing to reduce motorist stops and delays on three major travel corridors, Hollywood Way, Olive Avenue, and Victory Boulevard.  The modernized signals will also improve pedestrian safety, need a lower level of preventative maintenance, and have fewer malfunctions.  The following are the intersections in which these improvements were made:

 

1.      Hollywood Way and Jeffries Avenue

2.      Hollywood Way and Clark Avenue

3.      Hollywood Way and Oak Street

4.      Hollywood Way and Pacific Avenue

5.      Olive Avenue and Keystone Street

6.      Olive Avenue and Lake Street

7.      Olive Avenue and Third Street

8.      Victory Boulevard and Keystone St.

9.      Victory Boulevard and Fairview Street

10. Victory Boulevard and Maple Street

 

ANALYSIS:

 

The increases in construction cost were due to unforeseen utility conflicts, abandoned street light foundations, concrete pavement, irrigation, and rocky soil conditions that were in the way of the installation of the new foundations, conduits, pull boxes.  These obstructions delayed the schedule of the project and increased the total construction cost of the project.  Additional tasks were incorporated into the project that also added to the construction costs.  The following tasks were added at the intersection of Olive Avenue and Third Street;

  1. Install 610 linear feet (LF) of 3� Rigid Galvanized Conduits (RGC) with sweeps and No. 6 Pull Box (PB) for a future Fiber Optic Communication cable that would tie-in with the planned Traffic Management Center (TMC) at the future Development & Community Services Building (DCSB).

  2. Install 200 LF of 2� RGC with sweep and a No. 5 PB for a future systems detector along Olive Avenue.

  3. Install 170 LF of 2� RGC with sweep and a No. 5 PB for a future CCTV installation 

  4. Install 600 LF of 2� RGC with sweeps and 4- No. 5 PB for the relocation of the Electrical Power source of the traffic signal and street lighting which is a task in the DCSB project (Project No. 11915 task 205C).

The final change order resulted in an additional cost of $83,887.49, which increased the original contract of $816,905.00 by 10.27%.  The total cost of the project with the change orders is $900,792.49.

 

The project manager has compared the cost of the proposed change order to similar construction previously completed and against industry standards for these types of projects and concluded that the cost of the change order is reasonable and competitive. 

 

FISCAL IMPACT:

 

Funding for the final change order of $71,975.91 is available in Gas Tax Account No. 125.PW22G.70002.0000.12706.  Balance of the funding, in the amount of $11,911.58, is from the DCSB project, Project No. 11915-205C, for the Traffic Management Center. 

 

The funds from the DCSB project will be utilized to cover the additional task added for the intersection of Olive Avenue and Third Street.  The task is identified as item no.4. - Install 600 LF of 2� RGC with sweeps and 4 - No. 5 PB for the relocation of the Electrical Power source of the traffic signal and street lighting which is a task in the DCSB project.

 

RECOMMENDATION:

 

Staff recommends that the City Council adopt the proposed resolution approving the final change order for Bid Schedule No. 1124, Installation of Vehicle and Pedestrian Detection Systems at Various Intersections.

 

 

 

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