This dataset describes planned and completed traffic signal audits across the City of Mesa managed transportation system. A traffic signal audit is a formal examination of the number of signalized intersections maintained by the City of Mesa. They are checked for proper programming and operation on a quarterly basis by a formal internal team. The data recorded includes the date by which each intersection needed to be audited, as well as the date the audit was completed.

This is a record of every Class A performed at signalized intersections maintained by the City of Mesa. Class A traffic signal maintenance is defined as the preventive and responsive activities to preserve traffic signal infrastructure and control devices necessary for the safe and efficient utilization of arterial, collector, and local roadways. This includes doing an AC/DC voltage check, cleaning the cabinet, checking the controller and monitor programming and operation, checking pedestrian and vehicle detection operation, checking for signal indication outages, checking equipment inventory, checking communications to the traffic management center, and checking wiring