What does the term "signal synchronization" refer to in traffic management?

The term "signal synchronization" in traffic management refers to the practice of coordinating the timing of multiple traffic signals to improve traffic flow along a roadway. By adjusting the timing of green, yellow, and red lights across various intersections, traffic managers can create a smoother and more efficient movement of vehicles. This coordination helps to minimize delays, reduce congestion, and enhance overall safety for both drivers and pedestrians. Implementing effective signal synchronization can lead to reduced travel times and increased capacity on roadways, as vehicles can move through multiple intersections more seamlessly.

The other options address different aspects of traffic signal operation but do not accurately capture the core concept of signal synchronization. Adjusting signal brightness pertains to visibility and energy efficiency rather than timing. Synchronizing pedestrian signals with vehicle signals is a part of traffic management but focuses specifically on accommodating pedestrians rather than the broader context of vehicle flow across multiple signals. Calling for traffic patrol assistance does not relate to the synchronization of signal timings and addresses a different operational issue altogether.