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They are called traffic lights or traffic signals.
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*** 2nd Answerer Says: Some parts of the country call them stoplights (as opposed to go-lights or caution-lights) and there is a variation called "blinking lights". "Blinking lights can be blinking red in all four directions to designate a four-way stop or full-stop in two directions & cautionary slow-down (blinking yellow) the other two directions.
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When are flashing red and yellow lights used to control some traffic intersections?
Flashing traffic lights are used when the control system is not functioning properly, or when there is very low level traffic (to the point that lights become unnecessary).
What counties in Wisconsin have no traffic lights?
forest
How smart are crows?
crows are very smart. They can even understand traffic lights!
Has DJ Tiesto died?
No, he actually just released some new music. The songs Traffic and Red Lights are available.
Can a pedestrian cross the street against a red light?
Crossing the road without traffic lights may or may not be legal, depending on the local law.A zebra crossing does not count as a traffic light, but is a good place to cross the road.Where traffic lights or zebra crossings are readily available (e.g. within a 100m walking distance) it is advisable to use these designated crossings.On small roads without such designations, it is advised that you cross where vehicles will be able to see you and give way to you safely.In all cases when crossing a road, it is best to check the traffic condition before proceeding.
Can a traffic light emit light energy?
Yes. That is why they are called traffic lights.
What were traffic lights installed in 1868 in England called?
They were called Semaphores.
Are traffic lights an American invention?
the second traffic light was made in America, the first one was made in Europe and exploded
What are the disadvantages of the traffic lights?
* The disadvantages of traffic lights r * Traffic lights can cause a chaos on the roads.* Also cause a huge traffic
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.
How often do traffic lights burn out?
The new traffic lights are now LED lights and do not ever burn out.
Are traffic lights a noun?
Yes, "traffic lights" is a noun phrase. "Traffic" is a noun, and "lights" is a noun used as a modifier to describe the type of lights.
Are traffic lights luminous?
No, because traffic lights are charged, not naturally bright.
What are traffic lights made of?
Traffic lights are made of part metal and part glass.
What are the disadvantages in traffic lights?
people can be colorblind. When the power goes out so do the traffic lights.
What did came first the vehicles or the traffic lights?
Logically, unless there were reasons to control traffic, there would have been no reason to create or install traffic lights. Because "traffic" generally comprises vehicles (motorized or otherwise), the traffic was probably there prior to the lights. Certainly, there were mechanical traffic signals that preceded traffic lights, not to mention traffic officers who once stood at busy intersections to direct traffic on a regular basis.
How many traffic lights are there in the UK?
There are approximately 33,000 traffic lights in the UK. However, this number may vary depending on new installations or removals of existing lights.
