Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Track traffic network dynamic security risk evaluation method

A technology of rail transit road network and evaluation method, applied in the field of dynamic safety evaluation of rail transit road network

Inactive Publication Date: 2014-12-24
BEIJING JIAOTONG UNIV
View PDF2 Cites 9 Cited by
  • 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

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Track traffic network dynamic security risk evaluation method
  • Track traffic network dynamic security risk evaluation method
  • Track traffic network dynamic security risk evaluation method

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] Linguistic variables Type II fuzzy number Very Unimportant (VU) ((0,0,1.15)(0,0,4.61);0.7,1) Unimportant (U) ((2.79,2.31,3.71)(0.42,3.13,5.41);0.7,1) Medium (M) ((2.79,3.34,3.67)(1.59,3.55,6.26);0.7,1) Important (I) ((6.29,6.67,7.17)(4.59,6.58,9.5);0.7,1) Very Important (VI) ((9.3,10,10)(6.37,10,10);0.7,1)

[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 ​​...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

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

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): G06Q10/06G06Q50/00
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
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com