OCTA Street of Four Names TSSP

Improves travel time along corridor by 10 to 20 percent.

Quick Facts

  • Includes the optimization of 110 traffic signals along the Street of Four Names with a limited budget


  • Following a systems engineering approach improved the communication speed for 37 intersections along the corridor, resulting in a 9:1 benefit-to-cost ratio in one year and improved travel time by 10 to 20 percent

  • Added benefits to 20 intersections that were in close proximity to the corridor

Our Work

  • Optimized the timing of 110 traffic signals

  • Inventoried and evaluated traffic signal equipment, communications hardward, and signal interconnect media

  • Provided data collection, analysis, and development and deployment of time-of-day coordination plans for a.m., p.m., midday, and weekend peak periods

  • Used Synchro and Tru-Traffic software for the timing and synchronization analysis

  • Reviewed the agency’s ethernet over copper concept and value engineered a switch concept and equipment with lower cost than what was originally identified

  • Performed fine-tuning and before and after travel time studies

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