摘要
交通流是一个复杂的动态非线性系统,有时会出现混沌现象,混沌交通流的表现形式是交通无序状态。对混沌交通流,模糊控制受其原理限制,缩短延误时间的控制效果不佳。本文以低饱和交叉口信号控制问题为研究对象,提出了针对混沌交通流的实时混沌引导控制方法,并设计了相应的混沌控制器。利用MATLAB软件完成的仿真表明,混沌引导控制能将无序的交通流有序化,降低延误,增大道路通行能力,其效果优于模糊控制。
The emergence of chaos could imply the traffic flow is being disordered, and the chaotic traffic flow is the manifestation of disordered traffic state. Fuzzy control method, limited in its principle, is not satisfied to improve the delay time of chaotic flow. In this paper, a method of traffic signal control on chaotic instauration isolated intersection is proposed, and an adaptive controller which uses real time chaotic guide control method is introduced also. The results of simulation based on MATLAB show that, the method of chaotic control is better than fuzzy control for chaotic traffic flow, which could change the traffic flow into ordered ones, decrease the traffic delay and enlarge the road capacity.
出处
《系统仿真技术》
2007年第2期63-67,共5页
System Simulation Technology
基金
交通部应用基础项目(200431982515)
长沙市科技局重点项目(K069010-32)资助
关键词
低饱和交通流
单路口
多相位
混沌
混沌引导控制.
instauration flow
isolated intersection
multiphase traffic signal
chaos
chaotic guide control
