Research On Distribution Of Stations Of Urban Rail Transit

Urban rail transit is at a stage of rapid development in our country at the present time, but there has been a lack of coordination in the process of development, especially construction cost and operating cost of rail transit are so high that they have seriously affected the healthy development of rail transit. The distribution of rail transit stations directly affects passenger flow and service levels of rail transit, and also directly affects engineering cost and operation benefit of line network. Research on the distribution of rail transit stations is not enough, which leads station layout mainly depends on experience, causing many unreasonable phenomenon of station distribution. This dissertation gives a systematic research on the distribution of rail transit stations, which has some certain practical significance for improving investment benefit and promoting the sustainable development of rail transit.Basing on analyzing the effect of the distribution of stations on passenger flow attraction, travel time, engineering and operating cost, land development along urban rail transit, linking up with other traffic modes, spatial structure and layout of urban system, this dissertation takes the distance between rail stations as design variables and adopts a combination of qualitative and quantitative way to establish calculation models of engineering and operating cost, travel cost, operation income and social benefit. In full consideration of interests of investors, operators, travelers and government, the optimum model which based on maximal NPV is set up. Finally, aiming at different distribution schemes, a comprehensive evaluation system of station distribution plans, which adopts gray relation method using AHP-Entropy to determine weights, is set up through the following four aspects: traffic function, economic benefit, implementation of construction and sustainable development.