Study of Two-Stage Fuzzy Control Algorithms about Adjacent Traffic Intersections
双交叉口两级模糊协调控制算法的研究

Based on the project of urban traffic intelligent control, we propose a traffic coordination control algorithm for two adjacent intersections using hierarchical fuzzy logic and the idea of adjusting membership functions automatically using chaos optimization. The two-stage fuzzy controller with this algorithm is designed and the program to simulate the algorithm is developed via MATLAB. Two traffic conditions, flow of dominate road being much different from that of subordinate road and flow of dominating road being less different from that of subordinate road, are simulated. Simulation results show that the average delay of vehicles in intersections is lessened using algorithm given in this paper than that using the conventional control strategies.