Research On Location Problem Of Railway Logistics Base And Operation Plan For Express Freight Trains

The rapid development of China's social economy and e-commerce has brought great convenience to the improvement of people's living standards.The increasing demand for white goods has brought challenges and opportunities to the freight transportation,and the express industry has risen rapidly.China's railway,highway,aviation,waterway and other modes of transportation and integrated logistics industry have achieved great development,but the advantages of railway transportation have not been fully explored in terms of the current development status.Considering the current national development strategy and the characteristics of railway transportation,the research on the construction of railway logistics base and the operation of express freight trains between bases is of theoretical and practical significance.In this context,firstly,the paper summarizes the domestic and foreign literature on the location of railway logistics base and express freight train operation plan,mainly from the research status of railway freight concentration,the research status of railway logistics base location,the research status of railway strategic loading point location,the research status of multi-objective planning,etc.Secondly,it analyzes the development status of express freight trains at home and abroad,defines the relevant concepts of railway logistics base,analyzes the characteristics of railway logistics base and the difference between railway logistics base and freight station,analyzes the influencing factors and location principles of railway logistics base location,and introduces the general model form and basic solution method of multi-objective planning theory in detail The research of face-to-face paper lays the theoretical foundation.Thirdly,the location of the railway logistics base is divided into preliminary selection and secondary selection.First,according to the regional economic development,the railway logistics service area is divided,and the developed provincial capital cities of each logistics area are selected as the alternative places.Then,the DEA model is used to evaluate the index system of railway logistics base,and MATLAB is used to solve the model,and the effective alternative cities of railway logistics base are obtained.Then,it analyzes the current situation of China 's express industry and forecasts the volume of express business.This paper uses the linear regression method to forecast the express business volume of seven selected cities,and then defines that the attraction intensity of goods source is mainly determined by the proportion of the regional GDP to the whole country and the proportion of the total retail consumer goods to the whole country,and constructs the OD prediction model to predict the OD volume of express between seven cities.Finally,a multi-objective programming model with the maximum benefit of railway operation and the minimum time of goods transportation is established.After the linear weighting method is used to transform it into a single objective function,the genetic algorithm is designed to solve the model.According to the solution results,the operation scheme of express freight train is worked out.