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短时交通流的非线性动力学特性

, PP. 91-96

Keywords: 交通工程,短时交通流,Bierley跟驰模型,混沌

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Abstract:

?基于Bierley跟驰模型理论,建立了由5辆机动车组成的动态交通流仿真模型。利用Matlab软件产生了5辆机动车的交通流时间序列,分析了相邻前后车辆的车头间距、速度差等变化过程,对仿真结果与实际交通流特点做了理论分析。讨论了模型参数对交通流动力学特性的影响,并从理论上证明了短时交通流具有混沌特性。结果表明:后车驾驶员对前后车相对速度和前后车车头间距越敏感就越容易出现混沌现象。

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