Simulation of traffic flow system and control using fuzzy logic

Fuzzy control can be used to control traffic problems. The traffic problem consists of coming and going lane, junction, traffic jam and traffic light. In this study, fuzzy control has three inputs. The first input is average traffic density while the green light is on. The second input is average traffic density while the red light is on. The third input is time of variation. There are three membership functions which show traffic density for the red and green lights. These are low, medium, high. Red light, green light and time of variation are defined in terms of the second; this assumption is chosen because the theory of the problem and the rule table can be easily established. As shown in this study, the purpose of choosing fuzzy control is that it achieves better performances in terms of traffic flow.