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首页> 外文期刊>IEEE Transactions on Intelligent Transportation Systems >Model and Simulation of the Heterogeneous Traffic Flow of the Urban Signalized Intersection With an Island Work Zone
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Model and Simulation of the Heterogeneous Traffic Flow of the Urban Signalized Intersection With an Island Work Zone

机译：岛上工作区的城市信号交叉口异类交通流模型与仿真

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摘要

Work zones exist widely in cities of many countries and have a significant negative impact on city traffic. The majority of the existing studies only focused on freeway work zones, while the work zones on urban arterials have not been investigated carefully. For the first time, this paper focuses on a specific type of work zone that is located within the area of the intersection, namely, the island work zone, and proposes a novel model for the traffic flow of the island work zone based on the social force theory. Compared to the existing traffic-flow models, such as the car-following and lane-changing models, the proposed model can capture the special characteristics of the traffic flow in the island work zone, such as heterogeneity, no lane division, and irregular boundary. The field data collected in Chengdu, China, are used to calibrate and validate the proposed model. Simulations are also conducted to investigate the variations of traffic-flow characteristics for different work zone features. The results display that the model can replicate the heterogeneous traffic flow of the intersection with island work zone with high performance. When an island work zone is located close to the intersection approach, it will significantly block the entrance of vehicles. When the work zone occupies over 1 m of the median divider, its impact on the traffic flow will become very significant.
机译：工作区在许多国家的城市中广泛存在，并对城市交通产生重大的负面影响。现有的大多数研究仅针对高速公路工作区，而尚未对城市干道的工作区进行仔细调查。本文首次重点研究了位于交叉路口区域内的一种特定类型的工作区，即岛屿工作区，并基于社会因素提出了一种新颖的岛屿工作区交通流模型。力理论。与现有的车流跟踪和换道模型等交通流模型相比，该模型可以捕获孤岛工作区交通流的特殊性，如异构性，无车道划分，不规则边界等。 。在中国成都收集的现场数据用于校准和验证所提出的模型。还进行了仿真以调查不同工作区域特征的交通流量特征的变化。结果表明，该模型能够较好地复制岛工作区交叉口的异类交通流。当孤岛工作区位于交叉路口附近时，它将严重阻塞车辆的进入。当工作区占中位分隔线的1 m以上时，其对交通流量的影响将变得非常显着。

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