An Advanced Six Circuit Traffic Light Controller using Verilog HDL

Traffic control is a challenging problem in many cities. This is due to the large number of vehicles and the high dynamics of the traffic system. Poor traffic systems are the big reason for accidents, time losses. In this it will reduce wa iting time of the vehicles at traffic signals. In traffic light controller, density of traffic is sensed by using IR sensors throughout day and night, and accordingly time is allotted for users to pass. Traffic Light Control (TLC) system also based on microcontroller and microprocessor. But the disadvantage of with microcontroller or microprocessor is that it works on fixed time, which is functioning according to the program that does not have the flexibility of modification on real time basis. Other advantages of this system are: i) System senses emergency vehicles on the individual road moreover it gives priority to the traffic of that particular road where the emergency vehicles is sensed. ii) Finds out defaulter who crosses the red signal by capturing images using camera. In this, we are using FPGA with traffic sensors to control traffic according requirement means we can change the program if it require and thus reduces the waiting time. The hardware design has been developed using Verilog Hardware Description Language (HDL) programming. The output of system has been tested using Xilinx ISE 9.2i.