Rail transit key node and key road section identification method

A key node, rail transit technology, applied in the field of rail transit, can solve problems such as the inability to effectively identify key nodes

Inactive Publication Date: 2019-07-19
SOUTHWEST JIAOTONG UNIV
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  • Abstract
  • Description
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Problems solved by technology

[0003] The purpose of the present invention is to solve the problem that the existing rail transit network node identification method cannot effectively identify the key nodes objectively and comprehensively, and proposes a rail transit key node and key road section identification method

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  • Rail transit key node and key road section identification method
  • Rail transit key node and key road section identification method

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Embodiment Construction

[0096] Exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be understood that the implementations shown and described in the drawings are only exemplary, intended to explain the principle and spirit of the present invention, rather than limit the scope of the present invention.

[0097] The embodiment of the present invention provides a method for identifying key nodes and key road sections of rail transit, such as figure 1 As shown, the following steps S1-S8 are included:

[0098] S1. Select evaluation parameters and construct an evaluation model for the importance of rail transit network nodes.

[0099] Construct a complete node importance evaluation model, select scientific, representative and comprehensive evaluation parameters, not only reflect the topological importance of nodes in the network, but also connect with the actual line network of urban rail transit network, reflecting the The...

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Abstract

The invention discloses a rail transit key node and a key road section identification method. The method includes: based on a complex network theory and a PageRank algorithm, calculating a topologicalindex value of the rail network as a node importance evaluation system value; carrying out evaluation value calculation on a node importance evaluation matrix by adopting three evaluation methods ofa grey correlation analysis method, a TOPSIS method and a principal component analysis method, determining weights of evaluation results by utilizing an entropy weight method, and finally obtaining importance values of the nodes and the road sections so as to identify the key nodes and the key road sections. According to the invention, identification of the key nodes of the rail transit network isobjectively and comprehensively considered; the key node importance degree calculation method is designed by using relevant theories such as a complex network and comprehensive evaluation, stations needing important maintenance in rail transit operation can be judged, the importance degrees of all the stations are ranked, and a choice is further provided for robustness analysis of the key nodes of the rail transit network.

Description

technical field [0001] The invention belongs to the technical field of rail transit, and in particular relates to the design of a method for identifying key nodes and key sections of rail transit. Background technique [0002] With the continuous development of urban rail transit construction, quantitative calculation of node importance to identify key nodes and key road sections will help improve the accuracy of network performance analysis and is crucial to the safe operation of rail transit networks. At present, many scholars use complex network theory to study the topology and network performance of rail transit networks. However, when measuring the performance of rail transit networks such as subways or railways, they mainly examine the invulnerability, robustness, or vulnerability of the network. The selection operation is relatively simple, lacks a unified index system, and the measurement index used in network performance analysis is relatively single, and does not d...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06K9/62G06Q10/06G06Q50/30
CPCG06Q10/06393G06Q50/30G06F18/2135
Inventor 薛锋何传磊黄倩范千里袁野罗桂蓉黄宇施政百瑞
Owner SOUTHWEST JIAOTONG UNIV
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