繞城高速公路指路標(biāo)志優(yōu)化設(shè)計(jì)研究
[Abstract]:With the rapid development of economic construction in China, traffic problems in some large and medium-sized cities are becoming more and more serious. In order to alleviate the traffic pressure in the city center, the highway around the city has become an important choice. On the one hand, the highway around the city is connected with the radiation highway, the national provincial highway, and on the other hand, it is connected with the urban road. The road type is complex, the area involved is wide, the amount of information needed to be indicated is large, and the number of interchanges along the route is large. There are many problems, such as various forms, small distance between interchanges, overloading of information, lack of continuity of information, lack of clear level of information and so on. Solve the above problem well, can realize the traffic function of the highway around the city. Based on the 2012 transportation science and technology project of Shaanxi Provincial Communications Department, this paper summarizes the current situation of the application of road guide signs at home and abroad and the development of related norms, and integrates traffic psychology and traffic engineering. The related knowledge of traffic safety and information theory, etc., to optimize the design of highway guide sign. Firstly, the paper determines the important principles in the guide sign of the roundabout highway, analyzes the cognition process of the driver and the information demand of the different traffic flow, and then divides the nodes of the highway around the city. The paper divides the nodes of the highway around the city into the junction interchange, the secondary hub interchange and the general interchange, and analyzes the layout position and supporting mode of different nodes. Secondly, under the background of the application trend of digital traffic signs, synthesizes the domestic and foreign experts' research situation to determine the information threshold of the road signs, gives the suggested threshold of information quantity is 6-9, and classifies the information of the directions. This paper gives the suggestion table of highway information classification in Shaanxi province, and on the basis of this, determines the classification method of highway information around the city, and determines the layout information content for different interchange nodes. Thirdly, on the basis of determining the ideas and principles of the information quality optimization of the guide signs, the paper divides the optimization of the surrounding highway into node unit and main line unit, and optimizes the design for different types of interchange. And the main line sign information related to the guide sign is analyzed. Finally, taking Xi'an Expressway around the City as an example, this paper analyzes the traffic function of Xi'an Expressway, determines the optimization content, and selects six villages Fort Interchange and Changan Interchange as representatives of different types of interchange nodes to optimize the design.
【學(xué)位授予單位】:長(zhǎng)安大學(xué)
【學(xué)位級(jí)別】:碩士
【學(xué)位授予年份】:2014
【分類號(hào)】:U491.52
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