Maximizing Traffic Flow

February 9, 2009 at 11:03 am Leave a comment

As much as I hate driving in Michigan (road conditions, number of drivers on the road, etc), I have to hand it to the engineer who decided to make the left turn arrow at the end of the light. In other locations, drivers get a left turn arrow at the beginning of the light, allowing cars to turn unobstructed. But then you get a few cars hanging out in the middle of the intersection waiting to turn who end up going on the yellow or red light to clear the intersection. This not only increases the risk of an accident (misjudging oncoming cars stopping at the yellow light) but can delay traffic from starting to cross once they get the green light. By having the left turn light at the end of the light signal, the entire left lane is moving. This allows the last few cars that in the other sequence would be sitting in the middle of the intersection to safely clear, because they don’t have to wait for oncoming traffic to stop and to get their car moving.

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Entry filed under: Realizations. Tags: , , , .

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