The Traffic Bureau has jurisdiction over the installation, maintenance and repair of electronic controls and auxiliary equipment relating to the operation of traffic lights and controls. Employees perform the installation and repair of underground and overhead wires and cables in addition to maintaining and repairing traffic light fixtures, relays and controllers.
The Traffic Bureau periodically inspects all traffic signals, conducts traffic studies and surveys, such as traffic counts, speed time delays, condition diagrams and traffic warrants.

There are approximately one hundred fifty-nine (159) traffic light intersections, forty-four thousand (44,000) traffic signs, ten (10) miles of double yellow lines and four hundred (400) cross walks/stop lines that are maintained by the bureau.