Raleigh’s Traffic Engineering team is responsible for the maintenance and operation of more than 700 traffic signals throughout the city. This includes ensuring proper timing of lights and repairing equipment as needed.
Many of these signals are integrated into a connected network, which allows engineers to remotely adjust signal timing. This capability is particularly useful during rush hours or large events in downtown Raleigh, helping to manage traffic flow efficiently.
In cases where a power outage occurs, the city’s traffic signals switch to backup battery systems. These batteries keep the signals operating temporarily. If an outage lasts longer than the backup system can support, intersections revert to four-way stops until normal power is restored and signals return online.
Raleigh uses technology such as sensors embedded in pavement and cameras mounted on poles at many intersections. These devices detect vehicles waiting at lights and allow real-time adjustments to signal timing, aiming to improve overall traffic efficiency.
The Transportation team conducts routine inspections of all traffic signals and responds promptly to reports from residents about any issues. Residents can report problems with traffic signals through Ask Raleigh, after which the team addresses the concern.
“Raleigh maintains 700+ traffic signals citywide.
Many signals have backup batteries to keep things moving during power outages.
Special sensors and cameras help lights adjust to real-time traffic.”
