服务型立体交叉被交公路等级与平面交叉研究

发布时间：2018-04-13 08:05

本文选题：服务型互通式立交 + 地方公路　；参考：《长安大学》2014年硕士论文

【摘要】：匝道或连接线与被交公路间平面交叉是服务型互通式立交的重要组成部分。该平面交叉区域设计的合理与否，不仅决定着该区域被交公路通行能力和服务水平的大小，还对整个服务型互通式立交的功能有重要的影响。国内外有关服务型互通式立交匝道或连接线与被交公路平面交叉的渠化方法及其适用性的研究甚少，所以本文对该区域平面交叉渠化方法及适用性进行研究，研究结果对保证整个互通式立交及其与被交公路连接的平面交叉区域的行车安全和通行能力有重要的现实意义。本文在对我国服务型互通式立交常用的基本形式进行归纳和总结的基础上，确定了服务型立交的匝道或连接线与被交公路之间T型平面交叉为研究对象。在分析平面交叉交通安全影响因素的基础上，，结合不同等级被交公路的交通特性，对匝道或连接线与被交地方路间的平面交叉的交通特性进行分析。结合平面交叉渠化设计的目的和原则，对所研究的T型平面交叉渠化方法进行研究，并对不同的渠化方案划分等级，确定不同等级的渠化方案的适应性，研究不同等级被交公路与匝道或连接线间的平面交叉渠化设计。使用VISSIM微观交通仿真软件分别对渠化前后的平面交叉交通运行情况进行模拟，对平面交叉渠化设计的合理性进行评价，最终确定服务型互通立交匝道与被交公路间平面交叉区域的渠化方案，达到了对该区域平面交叉的优化，减少该区域交通事故的目的。论文还对存在交通问题的现状互通式立交匝道或连接线与被交公路间的平面交叉，提出了近期和远期的改善措施。
[Abstract]:The plane intersection between the ramp or connection line and the intersected highway is an important part of the service interchange.Whether the design of the plane crossing area is reasonable or not not only determines the traffic capacity and service level of the crossing road, but also has an important influence on the function of the whole service interchange.There are few researches at home and abroad on the method of channelization and its applicability of the horizontal intersection between the service type interchange ramp or the connecting line and the intersected highway, so this paper studies the method and applicability of the horizontal crossing channel in this area.The results of the study are of great practical significance to ensure the traffic safety and traffic capacity of the whole interchange and the plane crossing area connected with the intersected highway.On the basis of summing up the basic forms of service interchange in China, this paper determines the T-plane intersection between the ramp or connection line of service interchange and the intersected highway.On the basis of analyzing the influence factors of plane crossing traffic safety, combined with the traffic characteristics of different grade intersected highways, the traffic characteristics of the plane crossing between the ramp or the connecting line and the intersection road are analyzed.Combined with the purpose and principle of plane cross channelization design, this paper studies the T type plane cross channelization method, and classifies different channel schemes, and determines the adaptability of different levels of channelization schemes.This paper studies the design of plane crossing channel between different grade intersection highway and ramp or connection line.The running situation of plane cross traffic before and after canalization is simulated by VISSIM microcosmic traffic simulation software, and the rationality of plane cross channel design is evaluated.Finally, the channelization scheme of the plane crossing area between the service interchange ramp and the highway is determined, which achieves the purpose of optimizing the plane intersection of the area and reducing the traffic accidents in the area.The paper also puts forward the short-term and long-term improvement measures for the plane intersection between the interchange ramp or the connection line and the intersected highway.
【学位授予单位】：长安大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：U412.35

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