Research On Optimization Of Passenger Train Operation Plan For Mohan-Vientiane Railway

Passenger train operation plan is an important part of railway transportation organization optimization.Reasonable train operation plan can give full play to the maximum utility of traveling equipment.The vast number of scholars have continuously put forward new research ideas and methods for optimization design of operation plan,aiming at improving the transportation efficiency of the entire railway system.In particular,Lao countries are still in the initial stage of railway transportation construction.The government needs to increase investment in the construction of new transportation lines.The construction of Mowan railway will drive the rapid development of cities along the line and form a comprehensive transportation system focusing on railway transportation,which will greatly improve the transportation efficiency of bulk goods and promote all-round economic development.According to the feasibility study report of Mowan railway construction,combined with on-site investigation and analysis,an optimization model of train operation scheme is established on the basis of previous studies.According to the mutual advantages of simulated annealing algorithm and harmony algorithm,an optimization algorithm that combines the two algorithms is designed to solve the model,and is optimized in coordination with train operation diagram.The main contents of the paper include the following aspects:(1)On the basis of previous studies,this paper analyzes the current situation and shortcomings of the research on the optimization of train operation plan and operation diagram,summarizes the optimization model and application scope of train operation plan,analyzes the prospect of train operation diagram design and the problems to be solved urgently,and basically determines the research content and solution ideas of the paper by studying the design differences of different intelligent algorithms.(2)This paper introduces the necessity of the construction of Mowan Railway,and preliminarily predicts the freight volume and passenger volume of the main cities along the line by using reasonable prediction methods,so as to provide theoretical basis for the design of train operation scheme,and then analyzes the important geographical location of Vientiane City and its role as a transportation hub in Mowan Railway transportation.(3)The advantages and disadvantages of traditional intelligent optimization algorithms are summarized,and the advantages of simulated annealing algorithm and harmony algorithm(HS)in train operation scheme design are analyzed.HS algorithm is well applied in solving complex problems.According to the strong advantages of HS algorithm,combined with simulated annealing algorithm,a hybrid optimization algorithm(DMHS)based on population diversity is formed.The simulated annealing algorithm is used to design the flow operation logarithm,and the HS algorithm is used to optimize the train stop mode,so as to optimize the overall train operation scheme.Taking Mowan railway transportation optimization as an example,the simulation design is carried out by using VC++6.0 programming,and the overall optimization of passenger train operation scheme is carried out,which verifies the rationality of the hybrid intelligent algorithm.(4)According to the optimization results of the train operation plan,the train operation plan and the train operation plan are optimized as a whole on the basis of phased optimization,and the train operation number and stop mode are adjusted through the plan layout design.According to the concept of comprehensive optimization,a correction coefficient is introduced in the design of the section passing capacity,the optimization process is dynamically adjusted,and reasonable coordination information is set to optimize the train operation route and plan in different periods and grades.On the basis of existing research,the coordination and optimization process of train operation plan and operation diagram is designed.The research results of this paper have certain reference value for the optimization of Laos similar train operation schemes in the future.