Evaluation method of security risk on crowded metro station

WANG Yi-min; LUO Yue; YU Heng; CHEN Jia-cheng; HUANG Xin

doi:10.19818/j.cnki.1671-1637.2020.05.016

Volume 20 Issue 5

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Article Navigation > Journal of Traffic and Transportation Engineering > 2020 > 20(5): 198-207

WANG Yi-min, LUO Yue, YU Heng, CHEN Jia-cheng, HUANG Xin. Evaluation method of security risk on crowded metro station[J]. Journal of Traffic and Transportation Engineering, 2020, 20(5): 198-207. doi: 10.19818/j.cnki.1671-1637.2020.05.016

Citation:

WANG Yi-min, LUO Yue, YU Heng, CHEN Jia-cheng, HUANG Xin. Evaluation method of security risk on crowded metro station[J]. Journal of Traffic and Transportation Engineering, 2020, 20(5): 198-207. doi: 10.19818/j.cnki.1671-1637.2020.05.016

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Evaluation method of security risk on crowded metro station

doi: 10.19818/j.cnki.1671-1637.2020.05.016

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

Funds:

National Key Research and Development Program of China 2016YFC0802500

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Author Bio:
WANG Yi-min(1966-), female, professor, PhD, ctymwang@scut.edu.cn
Received Date: 2020-04-03
Publish Date: 2020-10-25

Abstract

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.
- urban rail transit,
- metro station,
- security risk evaluation,
- extension theory,
- maximum correlation degree,
- crowded,
- multi-factor evaluation system,
- field application

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References

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Evaluation method of security risk on crowded metro station

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