基于边界理论的绕城高速公路出入口布局优化

发布时间：2018-03-25 18:16

本文选题：绕城高速公路　切入点：出入口布局　出处：《兰州交通大学》2017年硕士论文

【摘要】：绕城高速作为城市环线公路,与城市道路网关系紧密,在进行出入口的布设时,应充分考虑其与干线公路、城市主干道以及重要枢纽的衔接合理性,从而使得过境、出入境交通和城市各区间的中短途绕行交通更加便利。本文将绕城高速公路的互通式立交出入口作为研究对象,分析其出入口布局与城市道路系统之间的相互作用关系,对绕城高速出入口布局的相关问题进行定量的研究。首先,对绕城高速公路及其出入口的功能特点进行了详细的分析,归纳了出入口布局的一般原则。介绍了以往一般高速公路出入口规划布局的常用方法,并分析其在绕城高速出入口布局中运用的不适应性。其次,以系统边界理论尤其是界壳论为基础对绕城高速的系统边界进行分析,论证了绕城高速出入口布局与其系统界壳属性之间存在的内在联系。定义了界门密度、界壳压力等多个绕城高速公路系统界壳属性的数学表达式,分析研究了出入口布局与绕城高速系统界壳属性的相关关系,建立了理想状态下绕城高速公路界壳属性物元。然后,运用模糊聚类分析的方法对可能与绕城高速衔接并设置互通式立交出入口的城市对外道路进行优先度排序。按优先度逐渐增加与绕城高速衔接的道路数量,计算不同方案下绕城高速系统界壳属性物元与理想物元的贴近度,从而确定拟选出入口布局方案。本文还建立了适用于绕城高速公路出入口布局方案评价的指标体系,并对不同评价方法的优缺点进行综合比较,选择模糊综合评价方法对绕城高速出入口的布局合理性进行评价。最后,以兰州绕城高速公路为例,采用本文的布局方法对其互通式立交出入口进行规划。运用本文建立的评价指标体系对西安市的绕城高速公路的出入口布局现状进行综合评价。
[Abstract]:As the urban circular road, the circular highway is closely related to the urban road network. In arranging the entrance and exit, it should fully consider the rationality of its connection with the trunk road, the urban main road and the important hub, so as to make the transit through the country. It is more convenient to enter and exit traffic and short distance bypass traffic in various sections of the city. This paper takes the interchanges and exits of roundabout freeway as the research object, and analyzes the interaction relationship between the entrance layout and the urban road system. Quantitative study on the layout of high speed entrance and exit around the city is carried out. Firstly, the functional characteristics of the expressway and its entrance and exit are analyzed in detail. This paper summarizes the general principles of the layout of the entrance and exit, introduces the usual methods of the general layout of the entrance and exit of the expressway, and analyzes its inadaptability in the layout of the expressway entrance and exit around the city. Secondly, Based on the theory of system boundary, especially the theory of boundary shell, this paper analyzes the system boundary of high speed around city, and proves the inherent relation between the layout of entrance and exit of high speed around city and the attribute of system boundary shell, and defines the density of boundary gate. In this paper, the mathematical expressions of the properties of the boundary shell of several highway systems around the city, such as the pressure of the boundary shell, are presented. The relationship between the layout of the entrance and exit and the attributes of the boundary shell of the high-speed system around the city is analyzed and the matter element of the attribute of the boundary shell of the expressway is established under the ideal condition. Using the method of fuzzy cluster analysis, the urban external roads that may connect with the high speed around the city and set up the entrance and exit of the interchange are ranked first. According to the priority, the number of the roads connecting with the high speed around the city is gradually increased. By calculating the closeness degree between the boundary shell attribute matter-element and the ideal matter-element of the high-speed system around the city under different schemes, the scheme of the entrance and exit layout is determined. The index system suitable for the evaluation of the entrance and exit layout scheme of the roundabout expressway is also established in this paper. The advantages and disadvantages of different evaluation methods are compared, and fuzzy comprehensive evaluation method is selected to evaluate the rationality of the layout of high speed entrance and exit around the city. Finally, taking Lanzhou City Expressway as an example, The layout method of this paper is used to plan the interchange entrance and exit, and the evaluation index system is used to evaluate the present situation of the entrance and exit layout of Xi'an Expressway around the City of Xi'an.
【学位授予单位】：兰州交通大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：U412.366

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