Study on vulnerability formation mechanism of metro system under storm disturbance

doi:10.16265/j.cnki.issn1003-3033.2022.06.2067

Abstract

Abstract:

In order to effectively prevent major risks caused by extreme stormy weather to metro system operation, based on literature research and expert interviews, a metro system vulnerability index system under storm disturbance was established from five aspects: people, equipment, environment, safety management and emergency response, and 20 influencing factors were obtained. Then, a formation mechanism model of metro system vulnerability was established by using ISM-MICMAC, and driving force and dependency of each factor were demonstrated. Finally, with Zhengzhou subway as an example, the model was verified and countermeasures were proposed. The results show that the vulnerability of metro system can be divided into 5 layers. Educational training and regulations are the deepest influencing factors, and controlling and scheduling these two factors can alleviate and adjust adverse effects of the others. Staff's operational level and safety management awareness are middle layer ones, while the rest are in uppermost layer of ISM and direct influencing factors.

Key words: storm disturbance, metro system, vulnerability, formation mechanism, interpretative structural model(ISM), matrix of cross impact multiplications applied to classification (MICMAC)

ZHAO Luwei, WANG Qing'e. Study on vulnerability formation mechanism of metro system under storm disturbance[J]. China Safety Science Journal, 2022, 32(6): 193-199.

Figures/Tables 5

Tab.1

Factors influencing vulnerability of metro system under storm disturbance

类别		影响因素
人的行为	工作人员	业务水平 $V 1$
	工作人员	安全管理意识 $V 2$
	乘客	乘车环境风险认知 $V 3$
	乘客	安全防护意识 $V 4$
设备设施	设备设施	运行状态 $V 5$
		性能 $V 6$
		防护 $V 7$
		关联性 $V 8$
环境	自然环境	暴雨/洪涝 $V 9$
	运营环境	地铁员工的工作环境 $V 10$
		乘客的乘坐环境 $V 11$
		暴雨环境下的大客流冲击 $V 12$
安全管理	安全管理	教育培训 $V 13$
		规章制度 $V 14$
		国家法律法规 $V 15$
		自身监控监察 $V 16$
		组织结构 $V 17$
应急救援	应急救援	应急资源保障 $V 18$
		应急处置效率 $V 19$
		应急管理计划 $V 20$

Tab.1

Tab.2

Tab.3

Fig.1

Fig.2

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V₁	1	1	1	0	1	0	0	0	0	0	0	0	0	0	0	0	0	0	1	0
V₂	1	1	1	0	0	0	1	0	0	1	1	0	0	0	0	0	0	0	1	0
V₃	0	0	1	1	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0
V₄	0	0	1	1	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0
V₅	0	0	0	0	1	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0
V₆	0	0	0	0	0	1	0	0	0	0	0	0	0	0	0	0	0	0	0	0
V₇	0	0	0	0	1	0	1	0	0	0	0	0	0	0	0	0	0	0	0	0
V₈	0	0	0	0	0	0	0	1	0	0	0	0	0	0	0	0	0	0	0	0
V₉	0	0	0	0	1	0	0	0	1	0	0	0	0	0	0	0	0	0	1	0
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V₁₁	0	0	0	0	0	0	0	0	0	0	1	0	0	0	0	0	0	0	0	0
V₁₂	0	0	0	0	1	0	0	0	0	0	0	1	0	0	0	0	0	0	0	0
V₁₃	1	1	0	0	0	0	0	0	0	0	0	0	1	0	0	0	0	0	1	0
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V₁₄	0	0	0	0	0	0	0	0	0	0	0	0	1	1	0	0	0	0	0	0
V₁₅	0	0	0	0	0	0	0	0	0	0	0	0	0	0	1	1	0	0	0	0
V₁₆	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	1	0	0	0	0
V₁₇	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	1	0	1	0
V₁₈	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	1	1	0
V₁₉	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	1	0
V₂₀	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	1	1

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V₂	1	1	1	1	1	0	1	0	0	1	1	0	0	0	0	0	0	0	1	0	9
V₃	0	0	1	1	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	2
V₄	0	0	1	1	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	2
V₅	0	0	0	0	1	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	1
V₆	0	0	0	0	0	1	0	0	0	0	0	0	0	0	0	0	0	0	0	0	1
V₇	0	0	0	0	1	0	1	0	0	0	0	0	0	0	0	0	0	0	0	0	2
V₈	0	0	0	0	0	0	0	1	0	0	0	0	0	0	0	0	0	0	0	0	1
V₉	0	0	0	0	1	0	0	0	1	0	0	0	0	0	0	0	0	0	1	0	3
V₁₀	0	0	0	0	0	0	0	0	0	1	0	0	0	0	0	0	0	0	0	0	1
V₁₁	0	0	0	0	0	0	0	0	0	0	1	0	0	0	0	0	0	0	0	0	1
V₁₂	0	0	0	0	1	0	0	0	0	0	0	1	0	0	0	0	0	0	0	0	2
V₁₃	1	1	1	1	1	0	1	0	0	1	1	0	1	0	0	0	0	0	1	0	10
V₁₄	1	1	1	1	1	0	1	0	0	1	1	0	1	1	0	0	0	0	1	0	11
V₁₅	0	0	0	0	0	0	0	0	0	0	0	0	0	0	1	1	0	0	0	0	2
V₁₆	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	1	0	0	0	0	1
V₁₇	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	1	0	1	0	2
V₁₈	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	1	1	0	2
V₁₉	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	1	0	1
V₂₀	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	1	1	2
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