How Often are Traffic Signals Adjusted to Account for Changing Traffic Patterns?
Our signals are connected to centralized computer systems. These systems continuously monitor the status of the signals, collect traffic flow information and support signal-timing operations and changes, such as time of day and congestion levels. Our Smart Signal System allows our engineers to continually adjust the signals to respond to changing traffic patterns or accidents. To download a brochure about traffic signal, click here. (PDF, 260 KB) To request a printed version version and other free publications, see our publications page. This information is not intended to replace the warrants and guidelines established by the federal Manual on Uniform Traffic Control Devices (MUTCD) and the Virginia supplement to the MUTCD.
