Study Of Leading Function Of Rail Transit For Optimizing The City Structure Of Xi'an

Currently, it's the period of the space structure of metropolises and the best adjustment of the transportation methods period, the planning of the urban transit line net construction, will to produce the direct influence in the space of metropolises City structure of the adjustment of the reorganization and the transportation method. But our country still excellent to the urban transit city space structure system research of the leading function for turn is placed in the initial stage. Excellent research for turn to the urban transit planning and the city space structures of Xian City, be advantageous to the theories system of the further perfect our country urban transit planning and the city space structure interaction, and for our country the research of other cities has the bigger reference and draws lessons from the meaning.The paper elaborated the evolve of city space process, city road,the transportation present conditions of and urban transit line net planning of Xi'an. The paper Points out the city space structure existence problem of Xi'an and it is excellent to turn to adjust direction, city road of Xi'an and development trend and the urban transit line net structures and layers and each function of line fixed positions of the transportations.The paper launches the leading function of rail transit for optimizing the city structure of Xi'an from the leading function of rail transit for "one city over sensitive" and the leading function of rail transit for Stalk to development of Xi'an City. Combine are excellent to turn the process to the rail transit planning and the city structures of Xian City to carry on the analysis in the existent problem, and put forward the homologous suggestion and strategies.