An FPGA Based Vehicles Density Dependent Intelligent Traffic Light System


In this paper, a vehicles density dependent intelligent traffic light system based onFPGA has been built. The intelligent traffic light system counts the number ofavailable vehicles in the sides of the traffic intersection via the sensors placed onthe ends of the road. Subsequently, it determines passage time required for eachside, depending on the density of existing vehicles in it, in order to pass the largestnumber of vehicles in the intersection during a certain time. The proposed systemis built using VHDL, simulated using Xilinx ISE 9.2i package, and implementedusing Spartan-3A XC3S700A FPGA kit. Implementation and Simulationbehavioral model results show that proposed system fits the specified functionalrequirements, and finds a solution to overcome the problem of traffic jam atintersections.