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How long is a green traffic light?

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But at night people will start running red lights if they sit at one with no one coming for too long." Forbush said the typical light cycle is 120 seconds, meaning the longest you would ever sit at a red light is one and half to two minutes. read more

In fact, engineers at UDOT and with Orem city have collected four and a half hours of traffic data a day for the last six months, measuring traffic at 71 intersections throughout Orem in preparation for rolling out a new light timing system in Utah County. read more

It also depends on the lights and the situation. On quieter junctions where one road is significantly more busy than the other, the light may stay green indefinitely until traffic arrives at the sideroad. read more

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