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Traffic lights work on a timer, but if you look closely on the road when your stopped at the traffic lights, you should see a rectangle like shape under the car it is called a sensor
And when you drive on it, a signal is sent, so the timer knows a car is waiting, if no other cars are going the other way, the timer will change and the light will go green so you can go.
I hope this answer helps.
What else can I help you with?
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, the word 'traffic lights' is a noun, a plural, compound noun; a word for things.
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?
As of 2011, there were more than 25,000 sets of traffic lights in the UK. There was a 30 percent increase in traffic lights from 2000 to 2008.
What are traffic lights used for?
inventor of the traffic light
Are traffic lights controlled?
Some lights have sensors :)
How are traffic lights controlled?
Some lights have sensors :)
