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A lot of traffic lights now have a bright white light on top of the regular stop light that turns on when the light changes to red. What are they for?
Wiki User
∙ 12y ago
Most likely it's a camera taking a picture.
Sorry, those aren't for taking a picture. The strobing white light in the red light itself is to improve visibility of the red light. Notice that these light are either way out in the sticks, on 55/65 mph roads, or both. Supposedly you'll see the strobe before you see the red light and be more alert when you get there.
This is not an issue of visibility, "This phase indicates that a public transit vehicle may proceed through an intersection in any direction while all other traffic faces a red light." so it warns you to be careful when you pass on a green light because an emergency vehicule might have to burn a red light... info was found there...http://en.wikipedia.org/wiki/Unusual_uses_of_traffic_lights
I believe the question refers to the new white lights placed on top of the signal head and not the strobe light within the red light. These new white lights on top of the signal head are to help law enforcement determine who has run through a red light. They are used right now in Florida and Texas. They will blink when someone goes through a red light so that a nearby police officer can respond.
Wiki User
∙ 12y ago
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Black lights are not bright but when you turn them on you can see certain special things that you can't see in a regular light.
What did came first the vehicles or the traffic lights?
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Deer do not run towards bright lights but become mesmerized by steady, bright lights.
Does flashing your headlights at a red traffic signal make it change to green?
No, Flashing your headlight's will have no effect on a traffic signal. The reason a traffic signal changes for emergency vehicles that have the lights flashing, is, they have a special transmitter that tells the light to change. This transmitter is connected to the emergency lights so it comes on when the lights are used.
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When was Turn on the Bright Lights created?
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Who controls traffic lights?
No one really controlls the traffic lights. A computer system controls the traffic lights, and no humans are involved with controlling the traffic lights day in and day out. It is all automated these days.
