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Implementation Plan
Fiscal Year |
Project Elements Scheduled to be Completed
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2008-2009 |
Six communication hubs installed
Downtown communication system upgraded
210 signal controllers upgraded and retimed
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2009-2010 |
Communication conduit and fiber installed
350 signal controllers upgraded and retimed
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2010-2011 |
Dynamic Traffic Management Systems Implemented
225 signal controllers upgraded and retimed
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The upgrade of traffic signal controllers and communications system has been divided into seven areas of the City. The areas were indentified based on topography and layout of the existing communications system and ordered by need of improvement. The synchronization of traffic signals will follow the areas as the traffic signal controllers and communications system are upgraded and based on the last time a traffic signal was synchronized.
The traffic signals to be synchronized are identified in the TLSP: Traffic Signal Synchronization Status list.
Accomplishments
December, 2009: South Area Traffic Signal Controllers and Communications System Upgraded
The South Area, shown on the
"TLSP: Completed Project Components"
map is substantially complete with 145 intersections having been equipped with the new advanced traffic signal controller and upgraded communication equipment. A fiber optic communications backbone has also been installed that transmits the area’s traffic data and future traffic video communications from the area's hub location to City Hall.
November, 2009: Second Group of Traffic Signals Retimed
The second group from the first of three phases of the traffic signal retiming effort has been completed, as shown on the
"TLSP: Completed Traffic Signal Retiming" map. The retiming of traffic signals has been divided in to three implementation phases based on the installation of the new advanced traffic signal controller and the last time the signal was retimed.
July, 2009: East Area Traffic Signal Controllers and Communications System Upgraded
The East Area, shown on the "TLSP: Completed Project Components" map is substantially complete with 23 intersections having been equipped with the new advanced traffic signal controller and upgraded communication equipment. A fiber optic communications backbone has also been installed that transmits the area’s traffic data and future traffic video communications from the area's hub location to City Hall.
June, 2009: Southeast Area Traffic Signal Controllers and Communications System Upgraded
The Southeast Area, shown on the
"TLSP: Completed Project Components"
map is substantially complete with 64 intersections having been equipped with the new advanced traffic signal controller and upgraded communication equipment. A fiber optic communications backbone has also been installed that transmits the area’s traffic data and future traffic video communications from the area's hub location to City Hall.
May, 2009: First Group of Traffic Signals Retimed
With the Downtown area being complete, the first phase of traffic signal retiming has begun and the first of four groups of traffic signals have been retimed as shown on the "
TLSP: Completed Traffic Signal Retiming
" map. The retiming of traffic signals has been divided in to three implementation phases based on the installation of the new advanced traffic signal controller and the last time the signal was retimed. Retiming the traffic signals will reduce vehicle delay and improve travel times, thereby reducing vehicle stops, pollution, and fuel consumption.
April, 2009: Communications Hub Project Completed
The installation of six communication hub cabinets that will serve as the field aggregation point for traffic data and video communication has been completed. The installation of pull boxes and conduit that will support the installation of the fiber optic communications backbone from the hub locations to City Hall has also been completed.
March 30, 2009: Downtown Traffic Signal Controllers and Communications System Upgraded
The Downtown Area, as on the "TLSP: Completed Project Components” map, is substantially complete with 202 signalized intersections having been equipped with new advanced traffic signal controllers and an upgraded communications system. The new traffic signal controllers provide enhanced pedestrian signal control. The upgrade also provides Transit Signal Priority for the VTA Route 522 Rapid Bus service and LRT. The Downtown upgrade of traffic signal controllers and communications system was selected as the first area due to the high volume of pedestrian activity and transit activity.
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