City of San Antonio On-Call Traffic Engineering Services

City of San Antonio Traffic Signal Modernization

City of San Antonio On-Call Traffic Engineering Services

"Alamo City" Saves Millions & Reduces Travel Time with New Signal Timing Plan

We worked with the City of San Antonio to develop, program and implement optimized signal timing and phasing plans as part of a citywide project to upgrade traffic signal controllers to type 2070 advanced controllers. 

More than 50 corridors were retimed, including 375 intersections. The corridors represent a range of traffic patterns, including the high-volume and congested Medical Center Area, heavy retail districts and residential neighborhoods.

Our traffic specialists conducted field investigations and inventories of existing geometry and traffic control devices along the corridors and developed short- and long-term intersection improvement recommendations that included cost estimates and system timing plans using Synchro. 

By being hands-on during field implementation, we were able to quickly address any new signal timing issues. We worked to fine-tune the signal timing to optimize conditions. We also conducted before-and-after travel time comparisons using GPS units and prepared video recordings of travel time runs.

The project resulted in significant travel time improvements with an annual delay savings of approximately $66 million and an average reduction in travel time of 10 percent per corridor. The effort yielded a 40:1 benefit-cost ratio.

City of San Antonio Traffic Signal Modernization
Location

San Antonio, TX
United States