To accomplish i​ts stated mission, the Traffic Engineering Division is organized into five sections. These are Management and Administration, Signal Systems, Signal Construction and Maintenance, Signs and Markings, Traffic Studies. We also maintain signs and signals on a 24/7 basis.

The Signal Systems Section operates and maintains a countywide computer-controlled traffic signal system to protect motorists and pedestrians, reduce motorist travel time and aid in the efficiency of roadways. The section is responsible for the design of new signa​ls and the evaluation of signal timing and phasing.

The Signal Maintenance Section is responsible for the maintenance of traffic signal systems, and the maintenance of roadway lighting on selected roadways.

The Signs and Markings Section is responsible for the fabrication, installation and maintenance of signs and pavement markings.

The Traffic Studies Section conducts traffic studies and investigations to improve safety and traffic circulation for the motoring public. Various types of traffic data are collected and analyzed in the performance of these studies and are available to the public. These include turning movement counts, traffic volume counts, delay studies, speed studies and crash studies analyses. ​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​Additionally, this section reviews and approves the Maintenance of Traffic plans.​