考虑被超非机动车偏移减速的改进社会力模型
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1.北京建筑大学 土木与交通工程学院;2.北京建筑大学 首都世界城市顺畅交通协同创新中心;3.北京建筑大学 北京市城市交通基础设施建设工程技术研究中心

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U491.2

基金项目:

国家自然科学青年基金(5170080357);北京未来城市设计高精尖创新中心项目(UDC2019032924)


An Improved Social Force Model Considering the Shift and Deceleration of the Overtaken Non-motorized Vehicle
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Affiliation:

1.Civil and Transportation Engineering College, Beijing University of Civil Engineering and Architecture;2.Beijing Collaborative Innovation Center for Metropolitan Transportation, Beijing University of Civil Engineering and Architecture;3.Beijing Urban Transportation Infrastructure Engineering and Architecture, Beijing University of Civil Engineering and Architecture

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    摘要:

    超车事件数作为衡量非机动车服务水平的重要指标,是计算非机动车换算系数的依据,可通过微观仿真获取多样化的运行数据进行分析。现有非机动车社会力模型仅考虑超车车辆的交通行为,未关注被超车辆受超车行为的影响,本文以临贴超车为研究对象,考虑超车干扰对被超车辆横向偏移距离的影响改进车辆间排斥力,考虑车头间距对期望速度的影响改进驱动力,再现被超车辆在临贴超车过程中的横向偏移、纵向减速避让行为,通过速度-密度基本图及超越行为验证了模型有效性。应用该模型仿真获得电动自行车混入比例低于25%时的超车事件数,建立非机动车超车事件数模型并计算相应非机动车换算系数值为0.92。

    Abstract:

    The number of overtaking events is considered as an important indicator to measure the level of service of non-motorized vehicles and an important basis for calculating the conversion coefficient of non-motorized vehicles. Diversified non-motorized vehicles traffic flow data can be acquired for analysis through microscopic simulation. The traffic behavior of the overtaking vehicles is emphasized in the existing non-motorized vehicle social force model, whereas the influence of this behavior on the overtaken vehicles is currently ignored. Adjacent overtaking is taken as the research subject. The influence of the overtaking disturbance on the lateral shift distance of the overtaken vehicle is considered to improve the repulsive force between vehicles, and the effect of the space headway on the desire speed is considered to improve the driving force. The avoidance behavior of being laterally shifted and longitudinally decelerated by the overtaken vehicles is reproduced. The effectiveness of the model is verified by the speed-density diagram and the overtaking behavior. The number of overtaking events when the mixing ratio of electric bicycles is less than 25% is obtained by applying this simulation model, the non-motorized vehicles overtaking events model is established, and the corresponding non-motorized vehicles conversion coefficient is calculated to be 0.92.

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张蕊,郝嘉田,张士杰,等. 考虑被超非机动车偏移减速的改进社会力模型[J]. 科学技术与工程, , ():

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  • 收稿日期:2021-12-07
  • 最后修改日期:2022-04-30
  • 录用日期:2022-05-05
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