Study On The Layout Method Of Urban Public Transport Hub

Urban public transportation is an important component of urban transportation system,giving priority to the development of public transportation is the best choice to solve urban transportation problems.Urban public transportation hub is the key node in the urban public transportation system.The layout of the public transportation hub can optimize the connection of various modes of transportation and improve the transportation efficiency of the whole transportation system.Therefore,it is of great significance to study the planning and layout of urban public transportation hubs.Firstly,based on the introduction of urban public transportation hubs,it's analyzed of the classification,attracting scope and scale of urban public transportation hubs in this paper.At the same time,this paper puts forward the influencing factors and layout principles of urban public transportation hub from ten aspects,such as city form and urban development scale,and analyzes its development pattern.Secondly,the layout method of urban public transportation hubs is summarized,including commonly used centroid method,differential method,cost analysis method and so on.And analyze the urban public transportation hub layout from two aspects related to its own characteristics and city conditions.This paper analyzes the location principle of public transportation hub layout and classifies it according to the principles.According to the principle,a simplified method of layout is put forward.Thirdly,the common methods of comprehensive evaluation and weighting are discussed.Based on the characteristics of the urban public transportation hub system and each evaluation method,a mathematic model of gray relational analysis and fuzzy integrated evaluation method is determined.Then,taking Xi'an public transport hub as an example to verify the layout model introduced in this paper.The paper introduces the present situation and problems of Xi'an public transport hub and put forward the improvement measures.The optimal location model is used to optimize the site selection scheme.Finally,reviewing the previous research and case analysis,the paper summarizes the main conclusions and the problems that can be further studied.