|Table of Contents|

Evaluation method of security risk on crowded metro station(PDF)

《交通运输工程学报》[ISSN:1671-1637/CN:61-1369/U]

Issue:
2020年05期
Page:
198-207
Research Field:
交通运输规划与管理
Publishing date:
2020-10-20

Info

Title:
Evaluation method of security risk on crowded metro station
Author(s):
WANG Yi-min1; 2;  LUO Yue1;  YU Heng1;  CHEN Jia-cheng3;  HUANG Xin1
1. School of Civil Engineering and Transportation, South China University of Technology, Guangzhou 510640, Guangdong, China; 2. State Key Laboratory of Subtropical Building Science, South China University of Technology, Guangzhou 510640, Guangdong, China; 3. Guangzhou Metro Group Co., Ltd., Guangzhou 510335, Guangdong, China
Keywords:
urban rail transit;  metro station;  security risk evaluation;  extension theory;  maximum correlation degree;  crowded;  multi-factor evaluation system;  field application
PACS:
U491.17
DOI:
10.19818/j.cnki.1671-1637.2020.05.016
Abstract:
In order to accurately evaluate the security situation of crowded metro station, the security risk factors of crowded metro station were identified and analyzed on the basis of considering the subjective and objective hazard sources through literature search, case collection and questionnaire. A 4-level security evaluation system with 55 indicators was established. The risk types included fire, stampede, terrorist attack, flood, earthquake and so on. The calculating method of indicator weights at all levels, the acquisition method of indicators scores, the types of security grade and the indicators score ranges were clarified. Based on the extension theory, the security score calculation method of four-level risk indicators and the security risk grade judging criteria and evaluation method of crowded metro station were established. The security evaluation method was programmed and calculated by using MATLAB. The Tiyuxilu Station of Guangzhou Metro Line 3 was evaluated rapidly. Calculation result shows that the correlation matrix between the first-level security indicator and each security level of Tiyuxilu Station is(-0.057 6, -0.462 4, -0.588 2, -0.628 1)T, and the correlation matrix between the stampede accident of second-level indicator and each security level is(-0.354 8, -0.741 5, -0.724 5, -0.690 4, -186 5)T. According to the principle of maximum correlation degree, Tiyuxilu Station is generally in a safe state, but there are potential security hazards in congestion/stampede accident, evacuation environment, and management countermeasures, so the good operational security risk control measures of the station can reduce the impact of unsafe factors. The evaluation method is conducive to accurately understand the security situation of metro station, timely discover the potential security hazards, and formulate the countermeasures to ensure the safe operation of metro station. 5 tabs, 15 figs, 30 refs.

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Last Update: 2020-10-20