| 交通拥挤状态的识别与分析 |
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| 引用本文： | 王建玲,蒋阳升.交通拥挤状态的识别与分析[J].系统工程,2006,24(10):105-109. |
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| 作者姓名： | 王建玲 蒋阳升 |
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| 作者单位： | 西南交通大学,交通运输学院,四川,成都,610031 |
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| 摘 要： | 以交通流理论为基础，用车速年口车流密度泉描述车流的运行状态。把“密度-速度”曲线图中车速、车流密度、畅行速度三者所围的三角形面积看作的交通拥挤损失量．将交通拥挤度定义为车流运行状态相对于畅行状态时的损失率．推导出拥挤度的计算公式，将该佘式作为拥挤度的判定方法。假定道路上的车流服从用户平衡配流原则，则用户平衡状态时的车流运行状态即为拥挤平衡状态。用数值仿真的方法分析拥挤度随车流密度的变化趋势，及拥挤平衡的变化趋势。
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| 关 键 词： | 交通工程 交通拥挤 交通流理论 拥挤度 用户平衡 |
| 文章编号： | 1001-4098（2006）10-0105-05 |
| 收稿时间： | 2006-08-10 |
| 修稿时间： | 2006-08-10 |
Recognition and Analysis of Traffic Congestion |
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| WANG Jian-ling,JIANG Yang-sheng.Recognition and Analysis of Traffic Congestion[J].Systems Engineering,2006,24(10):105-109. |
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| Authors: | WANG Jian-ling JIANG Yang-sheng |
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| Institution: | School of Traffic and Transportation,Southwest Jiaotong University,Chengdu 610031,China |
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| Abstract: | Based on traffic flow theory, speed and density is used to describe traffic movement. The level of congestion has been modeled to relate to the triangle area enveloped by free speed, speed and density. The congestion equilibrium is the traffic movement under user equilibrium. Simulation is used to analysis the tendency of congestion equilibrium and the tendency of congestion level with density change. |
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| Keywords: | Traffic Engineering Traffic Congestion Traffic Flow Theory Congestion Level User Equilibrium |
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