Traffic signal coordination is the timing of traffic signals so traffic can travel along a street without stopping at every light. Several factors make trying to coordinate (synchronize) signals difficult. Each street's green indications are referred to as a phase. A simple intersection consists of two phases:
- Phase one - green for the main street
- Phase two - green for the cross street
This is called a cycle length. The amount of green each phase is given is based on the amount of traffic on the streets.
Updated Mar. 15, 2023