Study On Optimization Method And System Planning Of High-speed Railway Operation Scheme Diagram

As the main frame structure of the high-speed railway train operation diagram,high-speed railway train operation scheme diagram is the skeleton and core of the high-speed railway train operation diagram and directly determines the quality of the high-speed railway train operation diagram. As a comprehensive plan of high-speed railway transportation work,the high-speed railway train operation diagram is the basis of train operation organization work, occuping a very important position in the whole railway transportation organization work, which directly affects the quality of railway service and the benefit of railway transportation enterprise. Therefore, the preparation method of the high-speed railway train operation plan diagram has become the key problem in the research field of high-speed railway transportation organization.On the basis of domestic and foreign research results, this paper analyzes the key problems of the high-speed railway train operation scheme diagram,and uses the idea of hierarchical decision-making to optimize it. Firstly, taking the station and the line capacity and the passenger demand as the constraint, the paper establishes the optimization model of the high-speed railway train operation scheme diagram with the highest passenger satisfaction degree and gives the coordination method of the train running line.Then, this paper uses coordinated optimization ideas to further optimize the high-speed railway train operation scheme diagram coordinating thigh-speed railway train operation scheme diagram and EMU approach. Finally,according to the business and functional needs of the high-speed railway train operation scheme diagram, the system planning of high-speed railway train operation scheme diagram establishment system is carried out.The main work of the thesis includes the following four aspects:(1) This paper analyzes the key problems and influencing factors of high speed railway train operation scheme diagram in detail,including passenger satisfaction,stop scheme, utilization of EMU, station and line capacity, technical operation of passenger station, capacity of the high-speed train place, comprehensive maintenance skylight.(2) On the basis of the theoretical analysis of high-speed railway train operation scheme diagram,this paper adopts the idea of layer-by-layer optimization. Firstly, the calculation method of reasonable starting and ending time range of high-speed railway trains is given. then considering the station and line capacity and passenger demand, the high-speed railway train operation scheme diagram optimization model is established with the highest passenger satisfaction as the goal and the heuristic algorithm based on simulated annealing is designed. the results verifying with the Beijing-Shanghai high-speed railway show that the model and algorithm has a very good applicability. Finally, based on the characteristics of high-speed railway, the paper gives the coordination method of high-speed railway line and cross-line train and long-term and short-distance train to further optimize high-speed railway train operation scheme diagram.(3) Based on the idea of coordinated optimization, this paper designs the coordination and optimization method of the high-speed railway train operation scheme and the EMU approach on the basis of the initial high-speed railway train operation scheme diagram. In the study of the optimization method of EMU based on train operation scheme diagram,a method of forward connection priority and first join priority is proposed. In the study of train operation scheme diagram optimization method based on EMU approach, there are the three adjustment methods: adjust the interval operation time, shift the train running line, move the entire train running line.(4) Based on the detailed analysis of the operational and functional requirements of the high-speed railway train operation scheme diagram, the system planning research is carried out, and the research objectives, functional framework and key technology are given.