
Traffic Lights also called traffic signal or stoplight mostly placed where the roads meet and at squares or T points. These lights help in controlling the traffic by signalling which and when the vehicles have to stop and when they can go.
It is necessary to install traffic lights where the velocity of vehicles is swift. Traffic signals prove helpful in reducing the tragic accidents. It is also indispensable for the general public to follow the traffic lights properly.
You might have found three types of traffic signals: red, green and yellow. Here is what each of these signifies:
Red light is for stop
Green is for Go
Yellow is for proceeding with caution and to reignite the engine.

