Traffic Light Control System Using Raspberry-PI

Abstract

Nowadays congestion in traffic is a serious issue. The traffic congestion can also be caused by large red light delays etc. The delay of respective light is hard coded in the traffic light and it is not dependent on traffic. In this paper we studied the optimization of traffic light controller in a city using microcontroller. The system tries to reduce possibilities of traffic jams, caused by traffic lights, to an extent. The system is based on raspberry-pi. The system contains IR transmitter and IR receiver which are mounted on either sides of roads respectively. Based on different vehicles count, the raspberrypi takes desicision and updates the traffic lights delays as a result. Thus based on vehicles count, raspberry-pi defines different ranges for traffic light delays and updates those accordingly. This recorded vehicle count data can be used in future to analyze traffic condition at respective traffic lights connected to the system. For appropriate analysis, the record data can be downloaded to the controller through communication between raspberry-pi and the computer then it will send correct signal into the LED lights . In future in this system can be used to inform people about different places traffic condition.