Transportation - Signal Timing Report
A project to have Salt Lake City’s signal timing plans reviewed and updated by out-of-area experts who have never worked on the Commuterlink system, was funded by the Energy Efficiency and Conservation Block Grant approximately one year ago. The intent of the project was to have a “fresh set of eyes” evaluate the City’s traffic signal timing software and philosophy, as well as improve the timing of the City’s traffic signals. Project goals included, determining how to immediately reduce traffic delays, fuel consumption and greenhouse gas emissions and, over the long term, determine how to improve the capability and efficiency of the signal control system.
Key Findings from the Report
- save users 337,000 gallons of fuel annually
- reduce delay 14% during the morning peak, 10% during the midday period, and 8% during the p.m. peak
- CO emissions 50,700 pounds annually
- NOx emissions 10,000 pounds annually
- VOC emissions 13,200 pounds annually