Research On Optimization Of Arrival And Departure Tracks Operation Plan Of Railway Passenger Station

The railway passenger station is generally located at an important node of passenger flow transfer in the city,and is an inseparable part of the railway network.The continuous development of railway construction has brought about a sharp increase in passenger traffic,The number of trains arriving and departing from the station is also increasing.The rational formulation of the operation plan is the basis for the efficient completion of the passenger transportation work.The use plan of the arrival and departure line is its core part,reasonable planning and arrangement can improve the traffic capacity of the road network and avoid waiting for trains during the peak period of passenger flow.Based on the analysis of the operation analysis of the arrival and departure lines of the railway passenger station,this paper establishes a multi-objective optimization model for the application of the arrival and departure lines of the passenger station,and uses the genetic algorithm to solve and analyze the optimization of the arrival and departure lines.mainly include:(1)Based on the analysis of the classification of the passenger station,the organization of production work and the daily operation plan,the five aspects of the number of arrival and departure lines,the throat switch,the specialization of the yard and the line,the train operation diagram and the operation conflict are analyzed.The influencing factors of the use of the departure line are explained,and various passenger service elements such as the arrival and departure lines and the occupied time of the entry route and the distance of passengers leaving the station are analyzed,which provides a theoretical basis for the establishment of the application model of the passenger station arrival and departure line.(2)From the two aspects of the train occupancy to the departure line principle and the description of related problems,the application of the arrival and departure line is analyzed,and the relevant theory of the calculation of the importance of the objective function is analyzed.The balance of the use of the departure line and the optimization objectives of shortening the passenger’s exit distance,the weight of the optimization objective is calculated,and according to the operation cross relief,the safe interval time of the connecting trains and the non-stop trains should pass on the main line and other related constraints,establish a multi-objective optimization model for the arrival and departure lines of the passenger station.(3)The genetic algorithm is used to design the algorithm for the optimization problem of the arrival and departure lines,and the solution steps of the optimization model for the arrival and departure lines of the passenger station are obtained.Taking a domestic passenger station as an actual example,on the basis of arranging and analyzing its operation data,using C++programming to realize the algorithm,solve the optimization scheme of the departure and arrival lines,and compare the results before and after optimization to verify the model and the effectiveness of the algorithm.