PLC - BASED INTELLIGENT TRAFFIC CONTROL SYSTEM

The main object of this study was to design and implement intelligent traffic control system.. The system developed able to sense the presence or absence of vehicles within certain range no of vehicles countedfor the traffic signals to react accordingly green signal to illuminate, the system can help to solve the problem of traffic congestion. Hardware simulation tests were successfully performed on the algorithm imple mented into a PLC (progr ammable logic controller). The PLC checks the sta tus of the sensor. The system resolution is depend on the output provided by the sensors , Then PLC checks the density and then provide output signal to the traffic lights poles for O N or OFF the Red, yellow or Green lights . The road is opened for specific timing.