Research On The Method Of Operation Plan Of High-speed Railway Station Based On Cyclic Timetable

The periodic transportation organization mode of high-speed railway has been widely used abroad and has achieved good operation results.In recent years,the theoretical research on the periodic train operation diagram has also been widely used in China.In order to adapt to the requirements of periodic transportation organization,the operation organization mode of high-speed railway station should also be changed from non periodic,non fixed to periodic,regular and specialized.This paper mainly studies the method of the work plan of high-speed railway station under the mode of periodic transportation organization,and the main research contents are as follows:(1)This paper analyzes the technical operation chain of high-speed railway station,the occupation principle of arrival departure track and the calculation method of occupation time,introduces the related concepts of periodic transportation organization,and according to the characteristics of periodic transportation organization mode,puts forward the compilation process of station operation plan combining cycle and non cycle,and the conflict resolution method of cross periodic trains.(2)In this paper,a model of periodic high-speed railway station operation planning is proposed.Based on the analysis of the problems of traditional station operation planning,the paper puts forward the characteristics and difficulties of the periodical station operation plan.The unit cycle operation planning model is constructed with the objective of minimizing the total operation time of trains at the station and balancing the utilization of arrival departure tracks at the station.Based on the solution results of unit periodic operation plan,with the objective of minimizing the change of original periodic operation plan,minimizing the dwell time of non periodic trains at stations and balancing the use of arrival and departure tracks,a full day periodic station operation plan making model with non periodic trains is constructed.Finally,a small case is designed and solved by the optimization software GAMS to verify the correctness of the model.(3)The solution algorithm is designed.This paper uses the improved elite strategy fast non dominated sorting genetic algorithm(NSGA-II)to solve the problem model,introduces the basic idea and process of the algorithm,and designs the specific algorithm process for the periodic high-speed railway station operation planning model.(4)The actual case solving and analysis.In this paper,Xiong’an Railway Station is taken as an example to work out periodic station operation plan.Firstly,the basic data is prepared,the unit cycle is determined,and the train arrival and departure time is processed periodically.At first,the unit cycle operation plan is made by taking15:00-17:00 as peak period.The improved NSGA-II algorithm is compared with gams to verify the feasibility of the algorithm.The unit cycle operation plan is extended to other cycles and the line drawing is adjusted to form a 7:00-23:00 cycle train operation plan.On this basis,other non periodic train operations are inserted,and the final7:00-23:00 periodic station operation plan is adjusted.The feasibility of the proposed model and algorithm is verified by analyzing the results from the equilibrium degree of station equipment utilization and the periodicity of operation plan.