Chinese-European freight train domestic concentrated transportation system optimization method based on double-layer planning

Abstract

The invention discloses a Chinese-European freight train domestic concentrated transportation system optimization method based on double-layer planning. The Chinese-European freight train domestic concentrated transportation system optimization method comprises the steps of: determining a transfer station site selection alternative set by combing the current situation of a Chinese-European freighttrain domestic concentrated transportation system and adopting principal component analysis, respectively constructing an upper-layer model and a lower-layer model, carrying out iterative solution byadopting an adaptive genetic algorithm, and then optimizing the Chinese-European freight train domestic concentrated transportation system according to a solution result. According to the Chinese-European freight train domestic concentrated transportation system optimization method, the benefit of a concentrated transportation system planner, a transportation company or a cargo owner is considered, the upper-layer model for determining the positions and the number of freight train transfer stations and the lower-layer model for determining a train concentrated transportation scheme are respectively constructed, iterative solving is carried out by adopting a genetic algorithm, a reasonable concentrated transportation scheme can be determined while a container transfer station is reasonablyinvested and constructed, the transportation efficiency can be improved, the transportation requirements of cargo owners are met, and meanwhile the total logistics cost of a concentrated transportation and distribution system is reduced.

Description

technical field [0001] The invention belongs to the technical field of freight flow distribution of China-Europe Railway Express, and in particular relates to a method for optimizing the domestic container transportation system of China-Europe Railway Express based on double-layer programming. Background technique [0002] In recent years, under the continuous promotion of the in-depth development and construction of the China-Europe Railway Express, the domestic port container collection and distribution system has continued to develop, but some problems have also been exposed in the process: the relationship between the ever-growing port container throughput and the entire transportation system The layout of the existing China-Europe freight train hubs and cargo stations is not reasonable, and the transportation efficiency and cost are difficult to control. The level of coordinated development among domestic container stations needs to be further improved. Contents of the...

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Problems solved by technology

[0003] In view of the problems that most of the existing trains are point-to-point direct trains, it is difficult to realize normal operation of the China-Europe trains in most cities, and there is a lack of a powerful train collection system, etc., the present invention provides a China-Europe train based on double-layer planning Optimization Method of Domestic Consolidation System

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