Citation

Chen G, Li J, Chen X, Yang Q. China Saf. Sci. J. 2022; 32(11): 146-153.

Copyright

(Copyright © 2022, China Occupational Safety and Health Association, Publisher Gai Xue bao)

DOI

10.16265/j.cnki.issn1003-3033.2022.11.2043

PMID

unavailable

Abstract

To assess the risk of urban areas more accurately, a safety risk assessment model of urban areas based on disaster chain networks was proposed. The structure representation model of disaster chain network was established, and the risk of disaster chain network was adjusted by the resilience of complex network. A method to measure the risk uncertainty of disaster chain network and the objectivity of historical data was established to reduce the historical dependence and uncertainty of the model. The source control and risk prevention capabilities were used to reduce regional risks. Taking an urban area as the application object, the proposed evaluation model was used to evaluate the regional security risk. The results show that the method simultaneously considers the trigger effect between disasters and the resilience of disaster chain network, the risk uncertainty and the objectivity of historical data, and evaluates the security risk of urban area. Through the example application, it is proved that the triggering relationship of urban disaster and the formation of disaster chain network structure will aggravate the security risk of urban region. © 2022 China Safety Science Journal. All rights reserved.

Language: zh