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跟驰模型的交通流混沌转化现象的仿真 被引量:9

Simulation on the Transition of Chaos in Traffic Flow Based on the Car-following Model
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摘要 用M atlab软件编制皮埃莱(B ierley)模型来产生仿真交通流。在一定参数组合情况下,仿真研究交通流车队中前后车辆的车头间距变化过程。通过分析这种车头间距的变化曲线,可以明显地观察到混沌吸引子的存在,说明基于跟驰模型产生的交通流存在混沌现象,从相图中清楚地观察到了交通流混沌运动和有序运动之间的转化过程。结合交通流的实际情况,对仿真结果作了分析,最后得出对于研究与应用交通流理论的有益结论。 The simulation traffic flow is generated based on Bierley Car-following model, which is programmed using MATLAB. The changing processes of headway of the front vehicle and the following vehicle in the traffic flow were simulated under a certain parameters combination. With analysis of the simulation results of changing processes of headway, it is clear from the orbit in phase space that the strange attractors exists, i.e. in the traffic flow generated based on Bierley Car-following model chaos exists indeed. And the orbit in phase space shows the transition process between chaos motion and order motion clearly. The simulation results are compared with real traffic flow o Finally, the useful conclusion for study and application of traffic flow theory is presented.
作者 李松 贺国光
出处 《系统工程》 CSCD 北大核心 2005年第10期34-38,共5页 Systems Engineering
基金 国家自然科学基金资助项目(50478088)
关键词 交通流理论 跟驰模型 交通流仿真 混沌 有序运动 Traffic Flow Theory Car-following Model Traffic Flow Simulation Chaos Order Motion
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