城市交通网络可变车道设置方案研究

发布时间：2018-02-13 19:03

本文关键词： 潮汐交通可变车道交通拥堵城市道路　出处：《西南交通大学》2014年硕士论文　论文类型：学位论文

【摘要】：通勤交通导致潮汐交通流,进而引发了潮汐式的交通拥堵,这一交通顽疾困扰着全世界大城市的每一个交通组织部门。鉴于可变车道技术在应对潮汐交通拥堵方面的优越性,越来越多的城市将其作为一种常规的缓堵手段。本文从潮汐交通拥堵扩散网络出发,探寻网络内的最优可变车道设置方案设计方法。论文首先总结了潮汐式交通拥堵的形成原因、空间分布和时间分布等特性；探讨了由于潮汐交通流引发的交通拥堵在交通网络上的传播规律,提出潮汐交通拥堵扩散范围的估算方法以及各路段潮汐拥堵持续时间的估算方法。在总结国内外可变车道设计与运行经验的基础上,分析可变车道定义、类型及特点,从交通流向条件方面分析了不同车道数道路设置可变车道的临界分布系数。从路段、交叉口以及可变车道起讫点三个方面对可变车道交通组织进行了研究,并对可变车道的交通组织效果进行了分析。其次,本文提出一种考虑潮汐交通拥堵扩散范围内所有主要道路,以路网高峰小时总延误最小为目标的网络内可变车道设置方案设计方法。建立道路可变车道数的计算模型,给出模型求解流程。定义降低延误的贡献系数并以此作为比选众多可变车道设计方案的评判标准,结合交通分配技术,实现动态循环寻优过程。建立分层次的交通拥堵评价模型,作为可变车道设置方案设计优劣的评价模型。最后以成都市某潮汐交通拥堵明显的区域交通网络为算例,应用本文给出的可变车道设置方案设计方法计算得到该区域网络的可变车道设置方案。算例结果表明,相对实施可变车道方案前,该设计方法计算得到的可变车道设置方案能够有效地降低潮汐交通高峰时的交通延误,缓解路网内道路拥堵。
[Abstract]:Commuter traffic leads to tidal traffic flow, which in turn leads to tidal congestion, a persistent traffic problem that afflicts every traffic organization in the world's largest cities, given the advantages of variable lane technology in dealing with tidal congestion. More and more cities regard it as a kind of conventional slow blocking method. Based on the tidal traffic congestion and diffusion network, this paper explores the optimal design method of variable lane layout in the network. Firstly, the paper summarizes the formation reasons, spatial distribution and time distribution of tidal traffic congestion, and discusses the propagation law of traffic congestion caused by tidal traffic flow in traffic network. This paper puts forward the estimation method of tidal traffic congestion and diffusion range and the estimation method of tidal congestion duration of each section. Based on summing up the experience of design and operation of variable lane at home and abroad, the definition, type and characteristics of variable lane are analyzed. In this paper, the critical distribution coefficient of variable lane is analyzed from the point of view of traffic flow direction. The traffic organization of variable lane is studied from three aspects: road section, intersection and the starting and ending point of variable lane. And the traffic organization effect of variable lane is analyzed. Secondly, this paper presents a scheme design method of variable lane setting in the network considering all the main roads in the range of tidal traffic congestion and diffusion, aiming at the minimum total delay of peak hour of road network, and establishes the calculation model of the number of variable lanes on the road. The process of model solving is given. The contribution coefficient of reducing delay is defined and used as the criterion to judge the choice of many variable lane design schemes, and the traffic assignment technology is combined. A hierarchical traffic congestion evaluation model is established, which can be used as the evaluation model for the design of variable lane setting scheme. Finally, taking a regional traffic network with obvious tidal traffic congestion in Chengdu as an example, the variable lane setting scheme is calculated by using the design method given in this paper. Compared with the variable lane scheme before implementation, the method can effectively reduce the traffic delay at the peak tide traffic and alleviate the road congestion in the road network.
【学位授予单位】：西南交通大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：U491.1

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