| With the continuous development of China’s economy,the industrial structure has been constantly adjusted,and the demand for transportation services is increasing.As a guiding document for railway transportation,the efficiency and quality of transportation are closely related to the rationality and effectiveness of train production.The operation scheme of freight train should adapt to the dynamic changes of transportation demand transportation market as a benchmark,the transportation market fluctuations will occur at any time of the freight as a starting point,analyzed the relationship between the operation scheme of the transportation market in goods and goods trains and interaction,this article puts forward the dynamic change the flow of freight train based on train for the preparation of dynamic model,and study the goods train plan should be how to optimize and prepare the questions according to the change of the demand of freight.The main work and research content of this paper are as follows:(1)The freight railway transportation market is analyzed,including its concept,types,characteristics,distribution,and related factors.And elaborates the operation scheme of the freight train,the definition and operation scheme,main content,related factors,on the basis of further study discusses the main process of the freight train operation plan,method and formulation of relevant content.(2)Based on the basic theoretical framework of railway freight and cargo train plan on the further analysis of freight train plan of freight train,goods train operation plan and the influence to the flow of goods produced by the study of mechanism of the interaction between the feedback process,operation scheme principle through the feedback mechanism of dynamic change the goods flow and the freight train between,and in this process,the relationship between the feedback control of cargo and cargo train plan to conduct the research,while the introduction of mathematical method of quantitative evaluation method is proposed to matching relation.(3)The key technology of railway freight train planning based on dynamic cargo flow is studied,that is,the plan of freight train running should be dynamically compiled according to the actual cargo flow.Put forward the operation scheme of dynamic compilation requirements,principle.Then,this article establishs the railway freight plan,real-time and change in dynamic cargo freight market,provides the basis for establishing the initial train operation plan in accordance with the real-time market demand,and researchs the adjustment of train plan due to changes in the flow of goods train during the actual transportation process,this includes adjusting the content,and to define the definition for dynamic flow.Combined with the evaluation study of matching relationship between freight flow and freight train operation,a method of adjusting freight train operation plan based on feedback mechanism is proposed.On the basis of the above research on quantitative evaluation of matching relationship,the article sets the corresponding adjustment threshold and adjustment scope.Finally,the analysis concludes the overall process of the dynamic flow of goods based on the train operation plan.(4)The maximum return to railway transport department,traffic organization in the minimum time as the optimization objective,the construction of freight train operation plan optimization model,and designs the relevant genetic algorithm to solve the model,the transportation line construction examples,in order to prove that the model is reasonable,support from the technical level this paper presents the theory of. |
