Can all traffic signals be timed so I receive a green light at every intersection?
Because of the complexity of most transportation systems, it would be nearly impossible to orchestrate traffic patterns and traffic signal timing so that everyone could receive green lights at every intersection. Here are some of the factors that determine when traffic signals change and why drivers cant always get green lights: • Green times vary for minor and major streets: Because major streets carry the largest volumes, traffic signals give a longer green light to the traffic on these streets. This usually minimizes the delay for the majority of the traffic crossing an intersection. However, the smaller volume of traffic on the minor street may sometimes experience larger delays as a result. The minimum total delay is the goal. • Traffic signal timing at isolated intersections: Many traffic signals, especially those at isolated intersections, are designed on an individual basis to change at cycles that are best for that particular intersection. Pretimed signals have preset cycle le
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