A Study of Single Intersection Dual System Fuzzy Control Strategy for Bus-priority

Bus system can significantly improve urban passenger capacity,and alleviate the increasing traffic demand effectively.Bus priority at intersections is an important treatment for the development of bus priority.The traditional signal control scheme takes minimum average vehicle delay as optimization objective.It is unfair to those buses loaded more passengers than non-bus.Aimming at minimizing the average personal delay at intersection,this paper proposes a bus priority control system based on a bi-system fuzzy control model.The phase optimization fuzzy controller determines the phase sequence of single intersection,and the timing choice fuzzy controller determines how to terminate or extend the green-light time of the current phase.The simulation results show that the bi-system fuzzy control model can decrease average personal delay than the fixed-time control mode.