Question

write the short note of traffic signals

Answer 1





















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Traffic lights, also known as traffic signals, traffic lamps, signal lights, stop lights, robots, and traffic control signals, are signalling devices positioned at road intersections, pedestrian crossings, and other locations to control flows of traffic.



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Answer 2

Traffic lights change their colors in the same order every time. In most English-speaking countries, traffic lights usually change in this order:

Red light on: This tells drivers to stop.Green light on: This means the driver can start driving or keep driving.Yellow light on: This tells drivers to stop when it is safe to, because the light is about to turn red.

Garrett Morgan, an African-American inventor, invented one of the first traffic lights. He was one of the first people to get a patent for a traffic light.

William Potts, a police officer, invented the first traffic light with three colors.