气候变化领域集成服务门户(CCPortal): Evolution mechanism and driving factors of unconventional emergencies in megacities: an empirical study based on 102 cases in the world

CCPortal

DOI	10.1007/s11069-020-03998-7
	Evolution mechanism and driving factors of unconventional emergencies in megacities: an empirical study based on 102 cases in the world
	Zhou D.; Fan C.; Chen A.
发表日期	2020
ISSN	0921030X
起始页码	513
结束页码	530
卷号	103 期号:1
英文摘要	Based on the analysis method of emergency mechanism, this paper sorts out the key information of the evolution mechanism of the 102 unconventional emergencies occurred in 38 megacities in the world. By using DEMATEL model to search the main factors driving the evolution of the original events to sub-events and the mutual influence among them, the following conclusions are drawn: (1) During the development of unconventional emergencies in megacities, the evolutional phenomenon of events exists generally and the evolution paths are different obviously. (2) It can be seen that there is an obvious interactive feedback relationship between the emergency handling measures and event evolution in megalopolis. (3) The main department of disposal, the level of early warning and the pre-arranged planning are the most powerful factors determining the evolution of events. The research results have obvious warning significance to improving the ability of emergency management. As such, the paper is not a study of a failure in emergency cases, but rather the theoretical framework of unconventional emergencies evolution that make actions and decisions stand out as meaningful for the actors involved in dealing with situations of high complexity and uncertainty. In the future, it is necessary to study the driving results caused by various factors and explore the internal driving mechanism between the driving factors and the type of sub-events. © 2020, Springer Nature B.V.
关键词	DEMATEL model Driving factor Evolution mechanism Megalopolis Unconventional emergency
英文关键词	car use; complexity; decision support system; early warning system; megacity; numerical model; transportation system; uncertainty analysis; urban transport
语种	英语
来源期刊	Natural Hazards
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/206056
作者单位	Institutes of Science and Development, Chinese Academy of Sciences, Beijing, 100190, China; University of Chinese Academy of Sciences, Beijing, 100049, China; Henan Polytechnic University, Jiaozuo, 454000, China
推荐引用方式 GB/T 7714	Zhou D.,Fan C.,Chen A.. Evolution mechanism and driving factors of unconventional emergencies in megacities: an empirical study based on 102 cases in the world[J],2020,103(1).
APA	Zhou D.,Fan C.,&Chen A..(2020).Evolution mechanism and driving factors of unconventional emergencies in megacities: an empirical study based on 102 cases in the world.Natural Hazards,103(1).
MLA	Zhou D.,et al."Evolution mechanism and driving factors of unconventional emergencies in megacities: an empirical study based on 102 cases in the world".Natural Hazards 103.1(2020).