Chaotic Property Research for Freeway Traffic Flow
Based on Greenshields model, this paper constructs a dynamic discrete traffic flow model with the form of Logistic map and presents dynamic analysis for this model. By taking the occupancy as the model variable and the ratio of free flow speed to average speed as the control parameter of the model, we theoretically analyze the different traffic flow condition and the producing and transformation mechanism of chaos for freeway traffic flow. At last, we employ the largest Lyapunov exponent and power spectrum technique to estimate chaos for the real measured freeway traffic flow series so as to validate the chaotic property of freeway traffic flow series.
Traffic Flow Chaos Dynamic Discrete Model Logistic Map
Zhang Yu-mei Qu Shi-ru
Department of Automatic Control, Northwestern Polytechnical University, Xi’an 710072
国际会议
2009年中国控制与决策会议(2009 Chinese Control and Decision Conference)
广西桂林
英文
1840-1843
2009-06-17（万方平台首次上网日期，不代表论文的发表时间）