Benefit

Fuel consumption fell by 13 percent and vehicle emissions were reduced by 14 percent due to a computerized signal control system in Los Angeles, California.

June 1994
Los Angeles,California,United States

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Summary Information

The Automated Traffic Surveillance and Control Program (ATSAC) in Los Angeles, California, has operated computerized signal control systems since 1984. As of 1994, it included 1,170 intersections, and 4509 detectors for signal timing optimization.

FINDINGS

The system reportedly decreased fuel consumption 13 percent and decreased air emissions 14 percent.

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Source

Automated Traffic Surveillance and Control (ATSAC) Evaluation Study

Published By: Los Angeles DOT

Source Date: June 1994


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Application Areas

Intelligent Transportation Systems > Arterial Management > Traffic Control > Advanced Signal Systems

Intelligent Transportation Systems > Arterial Management > Traffic Control > Adaptive Signal Control

Goal Areas

Energy & Environment

Typical Deployment Locations

Metropolitan Areas

Keywords

coordinated signals, signal coordination, centralized signal control, signal synchronization, traffic signals, advanced signal control, signal timing optimization, coordinated signal control, advanced signal controller, traffic signal retiming, retiming, adaptive signals

Benefit ID: 2007-00343