隧道路段应急车辆快速通行策略的数值模拟
PDF下载 (117)何 芃,王子康,祝会兵,胡嶙峋,陈 磊.隧道路段应急车辆快速通行策略的数值模拟[J].宁波大学学报(理工版),2025,38(3):95-103.DOI:10.20098/j.cnki.1001-5132.2025.0126
HE Peng,WANG Zikang,ZHU Huibing,HU Linxun,CHEN Lei.Numerical simulation of efficient strategies for emergency vehicles passing through tunnel sections rapidly[J].Journal of Ningbo University(Natural Science & Engineering Edition),2025,38(3):95-103.DOI:10.20098/j.cnki.1001-5132.2025.0126
| Title: | Numerical simulation of efficient strategies for emergency vehicles passing through tunnel sections rapidly |
| 作者: | 何 芃, 王子康, 祝会兵, 胡嶙峋, 陈 磊 |
| Author(s): | HE Peng, WANG Zikang, ZHU Huibing, HU Linxun, CHEN Lei |
| 关键词: | 高速公路; 隧道路段; 应急车辆; 交通流模型; 快速通行 |
| Keywords: | expressway; tunnel section; emergency vehicle; traffic model; passing through rapidly |
| 分类号: | U491 |
| DOI: | 10.20098/j.cnki.1001-5132.2025.0126 |
| 文献标识码: | A |
| 摘要: | 利用元胞自动机交通流模型, 基于雷视一体机测得的实际交通数据, 考虑应急车辆在隧道路段快速通行及其与其他车辆之间的相互影响, 建立了一种适用于高速公路隧道路段有应急车辆通行时的交通流模型, 分析了交通流呈现自由流、同步流以及宽幅运动阻塞时流量与密度的关系。针对前方车辆不同的让行率, 计算了应急车辆通过隧道路段的时间。结果表明, 当密度时, 前方车辆让行率大于80%可有效提高应急车辆的通行效率, 并从微观角度对该结果进行了探讨。研究结果可为高速公路隧道路段保障应急车辆的快速通行提供理论参考。 |
| Abstract: | Based on the cellular automata traffic model and actual traffic data measured by thundervision integrated machines, with consideration of the requirement of emergency vehicles’ passing through tunnel sections rapidly and the interaction between emergency vehicles and other vehicles, a traffic model is established for the tunnel sections of expressway with emergency vehicles. The relationship between flows and densities is analyzed when the traffic flow demonstrates free flow, synchronous flow and wide motion congestion, respectively. The time required for the emergency vehicles’ passing through the tunnel section is calculated with different lane-changing yield rates of the preceding vehicles on the same lane. It is shown that when the density is , the traffic efficiency of emergency vehicles is improved distinctly if the yield rate of the preceding vehicles on the same lane is greater than 80%, and the reason of this result is analyzed from a microcosmic perspective. The research results are expected to provide a theoretical reference for the emergency vehicles’ rapidly passing through tunnel sections of expressway |
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| 备注/Memo: | 收稿日期: 2025−01−21 宁波大学学报（理工版）网址: http://journallg.nbu.edu.cn/ 基金项目: 宁波市公益计划（202002N3199） 第一作者: 何 芃, 硕士研究生, 主要研究方向: 交通流建模与交通优化。E-mail: 1175718301@qq.com *通信作者: 祝会兵, 教授, 主要研究方向: 交通流建模与交通优化。E-mail: zhuhuibing@nbu.edu.cn 宁波大学学报（理工版）网址：http://journallg.nbu.edu.cn/ |
