Importance Of Signal Light

INTRODUCTION
Traffic light which is one of the vital public facilities plays an important role to the road users. It will help to curb from accidents and gridlocks. This research exposed the operational of traffic light such as understanding the flow of the traffic system and the program itself. Traffic signal light is used to control the movement of vehicles and passengers, so that traffic can flow smoothly and safely. Traffic signal lights have been around for years and are used to efficiently control traffic through intersections.
Although traffic signal lights are relatively simple and commonplace, they are critical for ensuring the safety of the driving area. The growing use of traffic lights attests to their effectiveness in directing traffic flow, reducing the number of accidents, and the most recently to their utility in controlling the flow of traffic through metropolitan areas when have been used together with computer systems.
Traffic signal lights will improve the road safety and reduce congestion by providing, the signals orderly through junctions. Traffic control lights are provided for traffic control on streets and highways, especially at junctions. The traffic signals are cyclically displayed through a suitable timing and control mechanism. A traffic light has three colors which are red, yellow and green. Every color carries a certain sign. The red light means the road user has to stop driving and not crossing or pursuing the ride while the yellow light