具有公交优先的交叉口信号控制技术  

Intersection Signal Control Technology with Bus Priority

作　　者：徐颖燕[1] 沈国江[1] 孔祥杰[1] 谢宜生[1] 

机构地区：[1]浙江大学工业控制技术国家重点实验室,杭州310027

出　　处：《计算机工程》2011年第2期148-150,153,共4页Computer Engineering

基　　金：国家"863"计划基金资助项目(2007AA11Z216);国家自然科学基金资助项目(50708094);浙江省自然科学基金资助项目(Y1090208)

摘　　要：针对一类典型交叉口,提出一种具有公交优先的交叉口模糊信号控制技术。采用公交专用道和公交优先进口道实现公交车辆在空间上的优先,通过具有公交优先的交通信号控制算法实现公交车辆在时间上的优先。信号控制算法的核心模块由绿灯相位模块、红灯相位模块和决策模块组成,分别设计这3个模块的模糊控制策略。控制目标是达到对公交车辆加权的车辆平均延误最小。仿真结果表明,与定时信号控制技术相比,该控制策略不仅大幅度减少了公交车辆的平均延误,而且提高了非公交车辆的通行效率,可应用于实际工程。An intersection fuzzy signal control method with bus priority is presented. The buses arc given a priority spatially by the bus-only lanes and the bus-priority approaches. Meanwhile, the buses are given a priority temporally by the traffic signal control algorithm with bus priority. The core module of the signal control algorithm consists of green phase module, red phase module and decision module, of which the fuzzy control strategies are designed respectively. The control target is to make bus-weighted vehicle average delay minimum. Simulation results show, compared with fixed-time control, this control strategy not only can reduce bus mean delay significantly, but also can improve social vehicles＇ transit efficiency. So this control strategy can be put into practice.

关 键 词：交叉口 交通流 公交优先 模糊控制 

分 类 号：N945[自然科学总论—系统科学]