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Video: Cameras on traffic signal arms

Video: Why are there cameras on traffic signal arms?
Posted on 08/17/2020
In this episode of “Actually…,” City Traffic Engineer Troy Rother says people often mistake the purpose of the cameras mounted on top of traffic signal mast arms. The cameras simply detect vehicles at the intersection and give them a green light so they don’t have to wait as long.

Watch the Video: Why are there cameras on traffic signal arms?

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