单向高速路双车道交通流扰动的数值模拟(夏玉显; 陈伯文; 刘章; 薛郁)

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【作者】夏玉显; 陈伯文; 刘章; 薛郁 【作者单位】广西大学物理科学与工程技术学院

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【论文摘要】 在交通流流体力学模型中,考虑车辆换道效应的源汇函数和随机性而引入换道概率。在中密度下数值模拟了由随机换道引起扰动的演化过程,并考虑不同换道概率下的扰动演化. 结果显示不同的换道概率,扰动演化趋势几乎相同,呈现复杂的非线性特征,最终扰动幅值在一定值附近做无规则的小涨落。

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^%kfPu@2gV}0【英文论文摘要】 In this paper,we determine the source function and changing-lane probability due to vehicle to change its lane at random in unidirectional continuum traffic model on two lanes.The evolution of the disturbance wave which is induced by different random changing-lane is simulated numerically in middle density.It is found from numerical result that evolution of the different disturbance wave has the same complicated nonlinear characteristics.The final amplitude of the disturbance wave fluctuates irregularly near a initial value.

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+o7C SKs0Nh0【论文关键词】 交通流; 变道概率; 扰动
m?%VU-j5V l5S0【英文论文关键词】 traffic flow; random changing-lane probability; disturbance水利论文q0F4Jh?m$rB
【基金】国家自然科学基金(No.10662002和No.10532060);; 国家重点基础研究发展计划资助(No.2006CB705500);; 广西区自然科学基金(No.0640003);; 广西“新世纪十百千人才工程”专项资金资助(No.2005205)。

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TAG: 薛郁 刘章 陈伯文 夏玉显 高速路
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