Development of Smart Street Light System and Density based Traffic System using Internet of Things

Normally, we have the traffic signal lights programmed for a specific interval of moment. But here produce traffic light signals depending on the density of traffic, on the specific moment. Here will keep few IR sensors apart from the highway to monitor the traffic density. The timing of the traffic signals will be altered depending on the signals produced from the sensors. The output of the sensors is provided to a comparator for digitizing the output. This system can be used to find the nearby ambulance services and nearby hospitals using GPS modem so that the necessary treatments can be given to the patient as soon as possible. When the ambulance goes to any traffic signal in an emergency, the key exchange method takes place, i.e. the other signals will be switched off immediately and all other signals will be red and subsequently replaced by green signals. In smart street light system make use of automated system which will automatically control the operation of street lights using LDR and timers. When a person or a vehicle enters the road they are sensed by the IR sensors and the light automatically glows, and when the person leaves the road the lights are switched off automatically. This avoids unnecessary power wastage during the night when there is no sign of pedestrian or vehicles.