交通事故下城市主干路偶发性交通拥堵状态研究

发布时间：2017-12-30 18:05

  本文关键词：交通事故下城市主干路偶发性交通拥堵状态研究　出处：《哈尔滨工业大学》2016年硕士论文　论文类型：学位论文

  更多相关文章： 城市主干路 元胞自动机理论 偶发交通拥堵 车辆排队

【摘要】：随着车流量激增,城市主干路经常处于高负荷的运行状态,突发性交通事件造成的交通拥堵对城市交通影响程度和范围越来越大。并且由于拥堵交通流的状态十分紊乱和复杂,严重时拥堵会蔓延到整个城市路网,容易引发交通事故。所以在车辆事故引起交通拥堵时,如何提高道路的可靠性无疑是缓解城市交通管理所面临的重要问题。本文以交通事故下的交通拥堵为研究对象,利用元胞自动机理论,建立城市主干路交通拥堵条件下的交通流模型,通过数值模拟的研究方法对偶发性交通拥堵下的交通流特性以及拥堵现象进行研究,主要包括以下内容:根据拥堵产生特点、传播规律、严重程度对交通拥堵进行分类;偶发性交通拥堵影响因素较多,本文重来点分析来车率、车型比例、警示区长度、道路瓶颈类型等因素对交通拥堵的影响;根据不同路段车流特点,对城市主干路拥堵路段进行区域划分,并研究驾驶员在不同拥堵区域的车辆跟驰与换道行为的特点;在此基础上,对双车道交通流元胞模型进行改进,建立城市主干路偶发性交通拥堵模型,研究拥堵状态下城市主干道交通流基本特性;分析不同影响因素下的拥堵交通流参数特征,并对拥堵交通流进行分类和状态判断;研究道路瓶颈处车辆排队现象,并对路段上的典型拥堵类型进行总结,并提出控制措施。
[Abstract]:With the surge in traffic, city trunk road often in high load running, unexpected traffic incident caused by traffic congestion on the city traffic impact degree and scope of more and more. And because of the congestion state of traffic flow is disordered and complex, serious congestion will spread to the entire city road network, can easily lead to accidents. So caused traffic congestion in the traffic accident, how to improve the reliability of the road is undoubtedly an important issue to ease city traffic management faced. The traffic accident under traffic congestion as the research object, using the cellular automata theory, establish the model of traffic flow in city trunk road traffic conditions, traffic congestion of the traffic flow the characteristics and congestion by duality of numerical simulation method, which mainly includes the following content: according to the characteristics of Congestion Propagation, serious The degree of classification of traffic congestion; there are many factors influence the sporadic traffic jams, again analysis to car models proportion, warning rate, length, type and other factors influence the bottlenecks of traffic congestion; according to different traffic flow characteristics, the regional division of the city trunk road congestion, and study the characteristics in different congestion the car following and lane changing behavior; on this basis, the two lane traffic flow cellular model is improved, the establishment of city trunk road sporadic traffic congestion model, the basic characteristics of city main road traffic flow of congestion; congestion of traffic flow parameters characteristics under different factors, and the traffic congestion flow classification and state estimation; queuing phenomenon research on road bottlenecks on the road vehicles, and the typical congestion types are summarized, and put forward the control measures.

【学位授予单位】：哈尔滨工业大学
【学位级别】：硕士
【学位授予年份】：2016
【分类号】：U491.265
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本文编号：1355840