摘要
为研究混合非机动车道上快速行驶的电动自行车想要超越前方低速行驶车辆而进行鸣笛换道的现象,在分析经典Nasch模型的基础上,运用元胞自动机理论提出一种混合非机动车换道模型。首先,将混合非机动车换道过程分为两部分,即换道需求分析与换道操作过程;其次,在换道过程中引入鸣笛效应的概念,通过对基本换道模型的改进,建立混合非机动车的一般换道与鸣笛换道模型,并给出相应换道规则;最后,在改变交通流密度的情况下,对两种不同换道模型进行仿真对比分析。结果表明,当交通密度较低或较高时,鸣笛换道模型与一般换道模型得到的车辆平均速度及交通量几乎没有差别,但在中等密度范围内,鸣笛换道模型得到的车辆平均速度及交通量明显高于一般换道模型。说明在中等密度范围内,鸣笛换道行为有利于提高道路通行效率,但当密度较低或较高时,鸣笛换道行为对提高道路通行效率几乎不起作用。
In order to study the phenomenon of whistling lane-changing for fast-moving electric bicycles in mixed non-motorized lanes,a new lane-changing model for mixed non-motorized vehicles is proposed based on the analysis of classical Nasch model and cellular automata theory.Firstly,the lane-changing process of mixed non-motorized vehicles was divided into two parts,namely,lane-changing demand analysis and lane-changing operation process.Secondly,the concept of whistle effect is introduced in the pro cess of lane-changing.By improved the basic lane-changing model,the general lane-changing and whistle-changing models of mixed non-motor vehicle were established,and the corresponding lane-changing rules were given.Finally,under the condition of changing traffic flow density,two different lane-changing models were simulated and compared.The results showed that when the traffic density was low or high,the average vehicle speed and traffic volume obtained by the whistle lane-changing model were almost the same as those obtained by the general lane-changing model,but the average vehicle speed and traffic volume obtained by the whistle lane-changing model in the medium density range were significantly higher than those obtained by the general lane-changing model.This shows that whistle lane-changing behavior is beneficial to improve road traffic efficiency in the medium density range,but when the density is low or high,whistle lane-changing behavior has little effect on improving road traffic efficiency.
作者
杨晓芳
尹蔓迟
付强
YANG Xiao-fang;YIN Man-chi;FU Qiang(Business School,University of Shanghai for Science and Technology,Shanghai 200093,China;School of Surveying and Geo-informatics,Tongji University,Shanghai 200094,China)
出处
《软件导刊》
2019年第11期48-52,共5页
Software Guide
基金
国家自然科学基金项目(51308409)
上海市浦江人才计划项目(15PJC075)
关键词
交通工程
鸣笛换道规则
元胞自动机
混合非机动车
换道模型
交通流
traffic engineering
whistle-changing rules
cellular automata
mixed non-motorized vehicles
lane-changing model
traffic flow
