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A dynamic safety risk assessment method for rail transit network

A rail transit road network, dynamic safety technology, applied in special data processing applications, instruments, electrical digital data processing, etc.

Inactive Publication Date: 2017-05-10
BEIJING JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing researches are all based on type-one fuzzy numbers, and the rail transit network system is composed of multiple complex subsystems. Type-two fuzzy numbers are more advantageous in dealing with the uncertainty and complexity of the rail transit network

Method used

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  • A dynamic safety risk assessment method for rail transit network
  • A dynamic safety risk assessment method for rail transit network
  • A dynamic safety risk assessment method for rail transit network

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0091] Taking a certain moment in a certain urban rail transit network as an example to calculate, the index system is as follows: figure 1 shown. Table 1 gives the weights of the linguistic variables and the corresponding Type II fuzzy sets.

[0092] Table 1 Weighted linguistic variables and corresponding Type II fuzzy numbers

[0093]

[0094] In order to obtain the real-time safety status of a rail transit network at a certain moment, the present invention deploys data acquisition equipment on site, and the calculation results of the values ​​of each index at a certain moment are shown in Table 2.

[0095] Table 2 Values ​​of each indicator at a certain moment

[0096]

[0097] First, take the equipment index as an example to show the calculation process of interval type-2 fuzzy number and TOPSIS integration method. The three decision makers judge the importance of the ten criteria of the passenger flow index. Table 3 shows the original decision information of the ...

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Abstract

The invention provides a track traffic network dynamic security risk evaluation method. Firstly, a track traffic network dynamic security risk evaluation dynamic index system is determined, then all dynamic index values are calculated according to data collected by road network equipment in real time, and finally a track traffic network operating security risk is dynamically evaluated based on a new method with the interval type-2 fuzzy number and the TOPSIS combined. Technical supports are provided for precisely mastering the real-time security state of track traffic network operating and provided for decision making of related management personnel, and the quite important practical significance in improving decision making quality is achieved.

Description

technical field [0001] The invention relates to a rail transit road network safety evaluation method, in particular to a rail transit road network dynamic safety evaluation method. Background technique [0002] In the existing research on the subway safety index system, the research on the rail transit network safety evaluation index system is not perfect, and the rail transit network safety evaluation should be considered from the aspects of human, machine, environment, management, etc. . In order to fully integrate the establishment of the index system with on-site business, conduct in-depth research and analysis on typical metropolitan rail transit, summarize the main factors affecting operation safety, extract and condense the elements of operation safety, and build a "micro-intermediate" view of urban rail transit operation safety. Perspective-macro" evaluation index system. Most of the existing safety evaluation studies use static indicators, which do not consider th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F19/00G06Q10/06G06Q50/30
Inventor 秦勇李曼贾利民张振宇晋君谢征宇战明辉梁平孙方
Owner BEIJING JIAOTONG UNIV
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