Optimization Research Of Transfer Services Plan And System Based On Heterogeneours Demand Of Railway Passenger

The current railway routing system can not produce satisfactory trip plans for passengers with different income backgrounds, taking into account their preference on route choices. Therefore, the effort on developing and implementing a railway routing and scheduling model that provide personalized trip routes is of great significance in improving railway transportation service and Passenger flow guidance.The model proposed was based on large numbers of reference literature at home and abroad. Its characteristic variables were established through a comprehensive analysis of factors that contribute railway passengers'trip options. Weightings for these variables were determined by passengers'preferences. Utility function for each section on a railway path was constructed on an initial railway network. The optimization problem of routing generation was then converted to shortest path problem solved by a combination of K shortest path algorithm and A-star algorithm, basing on the proposed theoretical model, a passenger path query system was developed, with the functionality of generating initial travel paths displayed on a map.Firstly, the background of the research is dissertated firstly, then the actuality of the related issue is analyzed. Finally the important meaning of the research and the main content and methods in the paper are put forward.Secondly, the paper sorts the factors affecting the railway Passengers'train choosing behavior into subjective,objective and stochastic factors. Traveling cos,Time and comfort condition are selective analyzed and quantitative disposal.Thirdly, basing on train schedules, this paper designs a transfer service network, and combines the research needs to simplify the structure on the basis of analyzing its characteristics.Then, based on utility theory, this paper builds a passenger transfer optimization model, and selectively analyzes all the classic shortest path algorithm. It chooses K shortest path algorithm to solve the model, A-star algorithm is used to solve shortest path problem of K shortest path algorithm.Finally, this paper summed up the solving steps about the railway passengers transfer optimal schemes, including constructing the initial transfer programs, selecting feature vectors, determining parameters and utility functions, solving the models. According to the steps, the case gets multiple transfer plans from the time factor primarily, cost factors and integrated optimization, it verifies the feasibility and validity of the theory and method. On this basis, the transfer path query system was developed.The theory and the system of this paper can effectively guide the flow, improve the services quality of railway sectors. Meanwhile, it can improve the railway companies' integrated competitiveness in the transport market.