Special Traffic Organization Method To Ensure The Arrival Time Of High Value Added Goods

With the continuous transformation of China’s economy and the upgrading of industrial structure,people have higher requirements for material life,the increasing consumption and purchasing power,and the express service in the e-commerce industry is in full swing.This kind of high value-added goods put forward new requirements for transportation time and conditions.In this research background,the paper defines the transport characteristics of high value-added goods,and on the basis of fully understanding the advantages and disadvantages of domestic and foreign transportation products for high value-added goods,this paper puts forward the technology of keeping axle in the direct train for the high value-added goods that cannot be attracted by the train,establishes the model of adopting this method,and increases the profit and loss analysis to improve the model.The main research contents are as follows:(1)This paper expounds the research background of the increasing demand for high value-added goods transportation and considerable profit.It analyzes the research significance that the research on this problem will be beneficial to the protection of the environment and improve the market competitiveness of railway enterprises.This paper fully reads the literature at home and abroad,and has a more profound understanding of the deep connotation of high value-added goods,vehicle flow organization method and model solving algorithm.(2)This paper defines the basic concept of high value-added goods,classifies high value-added goods from the perspective of "black and white goods",lists common high value-added goods,analyzes their transportation characteristics from their characteristics,as well as the current situation of high value-added goods transportation market,and then analyzes the fast goods transportation products launched at home and abroad,which have their own advantages and disadvantages,but still can not meet the requirements of all transportation needs.(3)In order to speed up the transportation of high value-added goods,the traditional way is to organize the operation of express trains,but there are always areas that the express trains cannot attract.In view of this problem,this paper puts forward the idea of keeping axle in the technical direct train,and analyzes the transportation cost from the starting stage,the running and the arrival stage of the goods in detail.Based on this function,a nonlinear 0-1 programming model is established.In the constraint conditions,the transportation time limit is emphasized,and then the small calculation example of single intermediate station is used to verify the validity of the model.After the small example gets the reasonable answer,a large case of multiple intermediate stations is designed.The simulated annealing algorithm is introduced and programmed in Python language.The results are still reasonable.(4)As for whether all cases are suitable for the transportation method of axle reservation on the way of technical through train,this paper improves the original model partially,adds the judgment constraints of profit and loss analysis,and still calculates the original case,and finds that the results are consistent,which indicates that the profit and loss indicators can be obtained under the background of the original case and meet the newly added constraints The data in the original case is modified many times and substituted into the original model for calculation.This method is effective when it is found that the high value-added goods are more than 2.36 cars.The dissertation includes 26 figures,17 tables,and 53 references.