Traffic Operations
Traffic Signal Management
The Traffic Signal Management Center provides constant communication with computerized controllers at each traffic signal via a citywide fiber optic network. Signal status and equipment malfunctions are reported every second. Traffic volumes are reported every few minutes. .jpg "Traffic Control Room")
The central computers then select the best timing pattern and transmit updated instructions to the signal controllers on the street.
System Components
- Traffic Signal Management
- Video Monitoring
- Automated Traffic Volume Counts
- Video Detection
- Information Dissemination
- Ethernet and serial communication on Fiber Optic Networks
What does the Traffic Signal Management System do?
- Improves traffic signal coordination
- Makes traffic signals more responsive to traffic demands as they occur
- Provides information for staff to respond rapidly to incidents and malfunctions
- Coordinates City, County, and Caltrans traffic signal operation
.jpg "Traffic View")
Benefits of the Traffic Signal Management System
- Improved traffic signal coordination
- Reduced delay for drivers
- Reduced vehicle operation costs
- Reduced auto air pollutant emissions such as carbon monoxide, reactive organic gases, and nitrous oxides
- Reduced fuel consumption
- Improved maintenance staff response time
- Increased roadway capacity and safety
Closed Circuit (CCTV) and Ethernet-Based Cameras
The City operates over 200 cameras which provide important information to signal operators and maintenance staff, allowing them to observe and fine-tune intersection operations in real-time. Staff can assess each situation and make corrective adjustments immediately without having to travel to the site.
For more information or to report a traffic signal that needs attention, please submit a Service Request for 'Traffic Signal Maintenance', or contact the Municipal Service Center.
External Links
California Manual on Uniform Traffic Control Devices
This City of Stockton web page last reviewed on --- 4/3/2023