| 拥挤交通流当量排队长度变化率模型 |
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| 引用本文： | 姚荣涵,王殿海.拥挤交通流当量排队长度变化率模型[J].交通运输工程学报,2009,9(2). |
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| 作者姓名： | 姚荣涵 王殿海 |
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| 作者单位： | 姚荣涵,YAO gong-han(大连理工大学,国际航运中心研究院,辽宁,大连,116024);王殿海,WANG Dian-hai(吉林大学,交通学院,吉林,长春,130022)
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| 基金项目： | 国家自然科学基金，国家重点基础研究发展规划(973计划)，国家高技术研究发展计划(863计划) |
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| 摘 要： | 为了描述拥挤交通流中车辆排队的演化规律,以基于二流理论建立的当量排队长度模型为依据,运用微积分方法,针对单车道路段和多车道路段分别推导出当量排队长度变化率模型,并利用VISSIM模拟数据对模型进行了验证.结果表明:当交通流处于拥挤状态时,当量排队长度变化率近似等于交通波波速;采样间隔内当量排队长度变化率与实际排队长度变化率接近,误差法和熵方法证明,采样间隔越大,两者越接近,因此,提出的模型可以定量描述拥挤交通流中车辆排队的演化速率.
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| 关 键 词： | 交通流 二流理论 当量排队长度 变化率 采样间隔 拥挤状态 |
Change rate models of equivalent queue length for congested traffic flow |
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| YAO Rong-han,WANG Dian-hai.Change rate models of equivalent queue length for congested traffic flow[J].Journal of Traffic and Transportation Engineering,2009,9(2). |
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| Authors: | YAO Rong-han WANG Dian-hai |
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| Institution: | 1.Institute of International Shipping Center;Dalian University of Technology;Dalian 116024;Liaoning;China;2.School of Transportation;Jilin University;Changchun 130022;Jilin;China |
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| Abstract: | In order to describe the evolution rules of vehicle queue in congested traffic flow, the equivalent queue length change rate models for single-lane and multi-lane links were educed by calculous method on the basis of equivalent queue length models from two-fluid theory. These models were validated by the simulated data from VISSIM. Analysis result indicates that the equivalent queue length change rate is approximately equal to traffic wave velocity when traffic flow is at congested state. The equivalent and... |
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| Keywords: | traffic flow two-fluid theory equivalent queue length change rate sampling interval congested state |
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