This project is implemented by placing IR transmitters, receivers and led’s at the 4 way junction, the four paths are represented as R1,R2,R3,R4
Transmitters and receivers are placed at either sides of the four paths, and 4 led’s at corner of the junction
When there is a traffic along the paths,value of R would be 000 which are the values of IR sensors and if there is no traffic the value is 111