Automated Traffic Signal Performance Measures (ATSPM) are a series of visual aids that display the high-resolution data from signal controllers. They are a valuable asset management tool, aiding personnel in the control of both signal hardware and signal timing and coordination. They allow analysis of data collected 24 hours a day, 7 days a week, improving the accuracy, flexibility, and performance of signal equipment and the system as a whole. ATSPM are used to optimize mobility, manage traffic signal timing and maintenance, reduce congestion, save fuel costs and improve safety.