车道被占用时车辆排队长度的计算  

Calculation of Vehicle Queue Length on Occupied Lane

作　　者：谷翠梅 杨静 王丽婷 李爱玲 GU Cui-mei;YANG Jing;WANG Li-ting;LI Ai-ling(Department of Mathematics,School of Sciences,Hebei North University,Zhangjiakou,Hebei 075000,China)

机构地区：[1]河北北方学院理学院,河北张家口075000

出　　处：《河北北方学院学报（自然科学版）》2020年第1期37-40,共4页Journal of Hebei North University:Natural Science Edition

摘　　要：目的车道被占用可能会降低路段所有车道的通行能力,车辆会出现排队现象,因此主要研究车辆的排队问题。方法对车道被占用时车辆排队长度的计算,建立两种不同的车辆排队长度计算模型,即基于停车波和启动波的车辆排队长度计算和基于二流理论的拥挤交通流单车道当量排队长度计算。结果在排队长度最终的计算结果中,采用基于二流理论的拥挤交通流单车道当量排队长度计算结果中的在车流比较顺畅的情况下的计算结果;采用基于停车波和启动波模型的车辆排队长度计算结果中的在车流拥堵的情况下的计算结果。结论基于停车波和启动波的车辆排队长度模型在道路堵塞密度较大的情况下比较适用,而对于车流比较顺畅的情况模拟程度并不是很好,在道路车流交通畅通情况下应采用基于二流理论的车辆排队长度模型进行计算。基于停车波和启动波的车辆排队长度计算和基于二流理论的拥挤交通流单车道当量排队长度计算,这两种计算方法相比于其他方法更加简单,为交通管理与控制部门采取交通管控提供了依据。Objective The occupied lane may reduce the capacity of all lanes on the road section,and the vehicles will queue up.This paper mainly studies the queuing problem of vehicles.Methods For the calculation of vehicle queue length when lane is occupied,two different models of vehicle queue length are established,i.e.the calculation of vehicle queue length based on stop wave and start wave and the calculation of equivalent queue length of single lane in congested traffic flow based on the second-flow theory.Results In the final calculation result of queue length,the calculation result of equivalent queue length of single lane in crowded traffic flow based on the second-flow theory is adopted under the condition of relatively smooth traffic flow and the calculation result of queue length of vehicles based on the model of stop wave and start wave is adopted under the condition of traffic flow congestion.Conclusion Vehicle queue length model based on parking wave and starting wave is appropriate for the condition of denser road congestion.Vehicle queue length model based on the theory of the second-flow model is appropriate for the condition of comparatively smooth traffic.The two kinds of vehicle queue length calculation of crowded traffic flow based on parking wave and starting wave and the second-flow theory are simple,which provides a basis for traffic management and control departments to adopt traffic control.

关 键 词：交通波理论 二流理论 排队长度 

分 类 号：O294[理学—应用数学]