High-speed railway train connection scheme optimization modeling method

Abstract

The invention belongs to the technical field of urban rail transit operation management, and particularly relates to a high-speed railway train connection scheme optimization modeling method considering train time and connection relation adjustment. The method takes the minimum train connection time and the maximum service passenger flow proportion of a train connection scheme as targets, dividesthe passenger flow OD needing to be optimized into levels, provides different train connection service levels for different passenger flow OD levels, meets the diversity requirements of different levels of passenger flow OD for different train connection service qualities. And the train connection service level of the long-distance passenger flow OD is improved in a targeted manner.

Description

technical field [0001] The invention belongs to the technical field of urban rail transit operation management, and in particular relates to a high-speed railway train connection scheme optimization modeling method, which considers the adjustment of train time and connection relationship. Background technique [0002] The existing high-speed railway network is characterized by a large scale and a long mileage of a single main-line railway. However, when the railway department formulates railway transportation plans, it mainly follows the method of ordinary-speed railways, that is, the direct passenger flow transportation mode is the main mode, and a relatively high proportion of railways is operated. Long-distance, multi-stop passenger trains to meet the direct travel needs of passengers. At present, there are more than 1,300 stations that stop G / D / C trains in the railway network, and there are many passenger flow ODs, among which ODs with a distance of more than 1,000 km ac...

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Problems solved by technology

[0003] 1) Due to the large number of station nodes, long railway lines, wide radiation range and the coexistence of various train speeds, the periodic train operation mode cannot be fully used. Therefore, the train connection scheme should be mainly considered in the non-periodic operation mode. The corresponding target and constraints will change, for example, it is not possible to regularize the connection relationship between trains for all passenger flow ODs, and it is necessary to consider the hierarchical planning of the connection service level of different passenger flow ODs

[0004] 2) At present, the research on the problem of train connection is mainly concentrated in the field of urban rail transit, but the operation modes of urban rail transit trains and high-speed railway trains are quite different, urban rail transit trains have fewer starting and ending points, each line runs independently, and the train stops The method is single, and the connection relationship between trains is relatively simple; however, high-speed railway trains have many origins and destinations, network operation of railway lines, complex stop modes, and many combinations of train connection relations. Therefore, it is difficult to directly apply the research results of urban rail transit to high-speed railway network

[0005] 3) In the problem of train connection, the current research on transfer hub stations mainly focuses on transfer at the same station, and there are few studies on the optimization of transfer organization at different stations and the optimization of transfer at different stations to transfer at the same station

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