维持道路服务水平的模糊控制算法设计及其仿真

道路服务水平是标志运输服务质量的重要指标，随着城市道路网络中交通流量的迅速增加，维持期望的道路服务水平显得越来越重要，本文利用模糊控制原理设计了通过改变路段进口信号灯配时方案，控制进入路段的交通流量，实现维持道路服务水平的信号交叉口控制算法，对算法进行仿真分析表明，利用模糊控制原理设计的交叉口信号配时方案，能够很好地反映道路管理者的决策思想，也表明要维持道路期望的服务水平，交叉口的信号配时方案必须随着交通流量的改变而改变。

Design and Simulation of Fuzzy Control Algorithm of Traffic Level of Service

Level of Service is basically concerned with the quality of service provided by a roadway and it is very important to keep the expected level of service on road with rapidly rising traffic flow, especially under traffic congestion. A control algorithm of signal timing at intersection of link, which can control the traffic volumes into link by modifying the signal timing at intersection of link, is designed for keeping the expected traffic level of service of link by using fuzzy control theory in this paper. Simulation analysis indicates that the fuzzy control algorithm of signal timing of intersection can reflect well traffic engineers?ideas about making decisions, and it is also proved that the signal timing must be adjusted with the dynamic traffic volumes in order to keep the expected level of service of link.