What are the small black Boxes Located on the top of traffic lights in the UK?

Question:
I was wondering what they do, are they cameras to get people who jump the lights or are they used to oniter traffic flow?

Answers:

Internet in Cars?

Yep, they are cameras used to detect people running red lights. If you go through the light after it has changed to red your numberplate will be sent to a central computer and you'll get a ticket through the post.

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how fast does a bullet travel? in MPH?

timers

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How far do you commute?

cameras, to get traffic violators, monitor traffic. you are right.

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Can bikes(motorcycles) be driven on carpool lane? At carpool time?

They are the light sequencers/controllers linked to a central computer.

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Why are People in such a Hurry?

Yes they are cameras!

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