In Los Angeles, transit signal priority reduced total transit travel time by approximately 25 percent.
- Line 720 Wilshire/Whittier
- Line 750 Ventura
The demonstration project included the implementation of a transit priority system (TPS) within the two corridors encompassing 211 traffic signals. The TPS project serves to improve the on-time performance of the Metro Rapid buses by adjusting the signal timing at intersections as their approach is detected. This project also included control of dynamic passenger information signs at selected bus shelters along the routes to provide real-time bus arrival information. MTA management used the arrival information, proven to be accurate within one minute, to record travel times for each bus run.
Detailed engineering studies were conducted which not only measured the effectiveness of the project, but also its impacts on general automotive traffic.
- Total transit time savings were reduced by 25 percent.
- Delays caused by traffic signals were reduced by 33 percent.
- Overall travel speeds for buses on Wilshire Boulevard improved by 29 percent.
- Overall travel speeds for buses on Ventura Boulevard improved by 23 percent.
Published By: U.S. DOT Federal Transit Administration
Source Date: July 2001URL: http://www.fta.dot.gov/assistance/technology/research_4301.html
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bus priority, traffic signals, TSP