Simulation of Fuzzy Traffic Light Controller Using Fuzzytech5.72

The concentration of vehicles on road is increasing day by day throughout the world particularly in large urban areas. Due to this traffic congestion problem is also increasing. To accommodate this increasing demand an optimized method for traffic control is required. As the transportation system will grow the need for an intelligent controller will have to be employed to face controlling the traffic congestion problems. Fuzzy controllers have been universally used for many industrial applications but for traffic controls it hasn't been widely applied. This paper proposes the use of fuzzy based traffic light controller using FUZZY TECH software at a complex traffic junction. The real time parameters such as traffic density and queue length are obtained by using image processing techniques. So the on and off timings for the green, red and orange lights are adjusted as per the actual road conditions. In this paper a 4 way intersection fuzzy traffic controller has been described suitable for mixed traffic. The rule base has been formulated by human experts, fuzzy inference engine and the defuzzifier.