Xi'an Metropolitan Area Of Inter-city Rail Transit Planning And Forecasting

As China's rapid economic and sustainable development,urbanization is accelerating.A number of metropolitan areas has come into being because of the rapid development of the metropolitan area.The following are the most famous three metropolitan areas respectively among them:Guangzhou,Hong Kong as the center of the Pearl River delta metropolitan area,Shanghai as the center of the Yangtze River delta metropolitan area,and Beijing-Tianjin-Tangshan metropolitan area centered on Beijing to Tianjin.The formation of metropolitan areas have a higher requirement to the traffic,which is of volume,speed,environmental protection and energy saving advantages,is now accepted in many cities at home and abroad.Rail transport's large-capacity transport capacity can increase the level of transport supply to ease the traffic imbalance between supply and demand and promote economic development. This article investigates intercity rail transit forecasting of the metropolitan area of Xi'an city.In the thesis,with the every city's GDP and population as the main indicators in the Metropolitan Coordinating Region,we predict that the most likely construction of the Xi'an city metropolitan area rail transit's will be in two cities—Xi'an and Xianyang with the use of gravity models on the background.Then,we select the most closest to the actual situation and likely route for a traffic forecast in the planned three lines which is base on the traffic on existing roads conditions.In this paper,we use a four-stage theory which include traffic generation,traffic distribution,traffic modal splitting and traffic assignment.Flow generation forecast is the basis of a four-stage method.It will be get the closest to the object traffic generation because of we using two different methods.We can get the annual traffic growth rate and GDP growth by way of flexible method.In the traffic distribution,We choose the suitable method between the a detailed comparison of the gravity model and the dual-binding model system by way of the balance of the merits and scope of application.In the traffic modal splitting,we can get the distribution of passenger flow by way of improved Logit model. On the basis,we can get xi'an—xianyang the inter-city rail transit project in the planning of the passenger turnover quantity and passenger volume on such indicators as the largest cross-section.on this basis,the thesis depth analysis of the construction of rail transit for project planning and design.