solar based density traffic light control

Traffic congestion is a serious problem in many major cities around the world and has become a nightmare for commuters in these cities. Traffic can be controlled at several major intersections by incorporating either automatic traffic light control or traffic police. But the conventional traffic light system is based on a fixed time concept allocated to each side of the intersection, which cannot be changed according to the changing traffic density. Sometimes there is a need to change the traffic light priority based on more vehicles waiting on the same road, VIP vehicles and ambulance vehicles etc. We propose to design and develop a density based traffic light system. The signal changes automatically when sensing the traffic density at the intersection. The prototype model was developed using IR sensors and Arduino. We use Arduino to write programming as per our requirements due to its simplicity and economy and IR sensors are used to measure traffic density on a particular road. As a result, the traffic light works in an incorrect way. In the future this can be improved by using some suitable sensors. IR sensors are placed on each road in a precise manner to correctly detect traffic density; these sensors always sense the traffic on the given road. All these sensors are connected to Arduino. Based on these sensors, the controller detects traffic and controls the traffic system. Traffic light control depends on the number of vehicles available on the road.