Study On The Operation Scheme And Optimization Of Railway Luggage And Parcel Express Special Train

With China's rapid economic and social development, and efficient cargo transport demand also growing up. Parcel Cargo Express Freight rail train is a new form of transport in fixed site to fixed time intervals between the fixed path to the operation of the load-line package to organize specialized train. Railway transport enterprises to adapt to changes in market demand, according to railway passenger train transportation to organize railway line package cargo products, special train trip package to implement the delivery of passenger train management. With the rapid development of China's railway industry, railway train in the opening line of the program is already the focus of the work train operations, research Railway Package Trains Plan preparation method and program optimization. Targeted market of special train trip package for marketing, by increasing the railway lines of transport efficiency, and ultimately improve the railway lines in the express transportation industry in market share.According to China Railway Parcel train the organization and management, this paper first learned of China Railway Parcel Transportation partition, and then made reference to qualitative factors and a variety of cluster analysis approach to the realization of regional division, the nation's major lines packet transport is divided into twenty-two cities parcel transportation area, and these areas are included in all regions of the city's traffic accounted for Parcel 90% of the total volume, covering the network of railway lines and all major economic regions, and then prediction obtained using OD exchange volume between regions, and on this basis to develop special train trip package open line program. OD prediction method by special train trip package open line program intended effect analysis and the results show that when the absence of relevant data, special train trip package program with the opening line effect of gravity model to forecast better. Impedance change to integrated into the calibration process into the gravity model approach, to give support to the lack of data, first of all need to reduce the collected sample data, and then integrated the model calibration impedance method, the best examples of prediction by OD. Line packet traffic forecast, the first line of packet traffic and the relationship between economic growth analysis, the total volume of the macro-line package predictive value, volume distribution as a reference and basis for prediction. Through the history of previous analysis of the data points on the line for the total package to predict. Finally, consider the impact of the size of inter-site traffic of various factors, on the line package for communication between stations of the OD traffic forecast.In the Railway Package Trains programming adjustments and optimization, by drawing on existing open-line programs of research and experience with the freight train formation plans and passenger train plan comparison based on the analysis of the Package Express special train Transport organizational characteristics, in order to maximize the return transportation, with the flow path and the train on the distribution of the number of open-line optimization scheme prepared two model variables, with the line package Trains Plan for 2010 Package Express train needs two train twelve Analysis node. In addition, transportation needs change over time, demand is not stable, open-line train in the actual organization, the grouping to the most flexible way to adapt to the changing needs of the transportation market, in order to improve the real return parcel transportation.