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四车道高速公路跟驰换道模型与参数激励

, PP. 96-105

Keywords: 交通工程,四车道高速公路,数值模拟,跟驰模型,换道模型,参数激励

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Abstract:

?为了更真实地反映四车道高速公路中车辆的跟驰换道行为,分析了侧向车辆和车道功能对驾驶人反应认知过程的影响,构建了考虑车道功能划分的跟驰换道模型,并结合服务水平对参数进行了标定。在此基础上研究了密度、慢车比例对2种车道划分方式(行车道加行车道、快车道加慢车道)的参数激励。结果表明:2种车道划分方式下,密度和慢车比例对流率的影响具有一致性,而对换道率和速度的影响则存在显著的差异性,从而论证了在交通流特性研究中,对车道进行功能划分的必要性。

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