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Time dynamics of emergency response network for hazardous chemical accidents: A case study in China

机译：危险化学事故应急响应网络的时间动态：以中国为例

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Since currently hazardous chemical accidents occur frequently around the world, how to build up an effective emergency response network (ERN) for hazardous chemical accidents become an urgent issue. Given the truth that previous static ERN research could not reflect the dynamic interaction patterns among actors in emergency response process, this paper studied the emergency response network for hazardous chemical accidents from the perspective of temporal dynamics. Jiangsu Xiangshui 3.21 chemical plant explosion accident, a major hazardous chemical accident just happened in March 2019, was selected as a case in this paper. Based on the time slices of the accident emergency response process, the dynamic evolution of emergency response network, organization functions, and organization positions over time were analyzed by social network analysis (SNA). The results revealed the dynamics of emergency response network in the context of centralized administrative systems. Emergency response network became more decentralized over time, rather than centralized; central organization functions varied depending on the response needs in each period; and positions of participants in network changed as time passed. The results also showed that under the centralized administrative systems, public-sector organizations were the core of emergency response network; whilst non-profit organizations and private organizations were largely marginalized. A hybrid network with centralization and decentralization complement each other may be more effective. ERN for hazardous chemical accidents should be considered in a time-dynamic way and collaborations among public sector organizations, NPOs and private organizations should be paid more attention to improve the emergency response efficiency. These findings may expand knowledge for researchers and practitioners to understand emergency response network of hazardous chemical accidents from dynamic perspectives, having an important significance for reducing and controlling economic losses, social risks and environmental damage caused by hazardous chemical accidents. (c) 2019 Elsevier Ltd. All rights reserved.
机译：由于当前危险化学事故在世界范围内经常发生，因此如何为危险化学事故建立有效的紧急响应网络（ERN）已成为当务之急。鉴于以前的静态ERN研究无法反映应急响应过程中参与者之间的动态交互模式这一事实，本文从时间动态的角度研究了危险化学事故的应急响应网络。本文以2019年3月发生的重大危险化学事故-江苏响水3.21化工厂爆炸事故为例。基于事故应急过程的时间片，通过社交网络分析（SNA）分析了应急网络，组织功能和组织位置随时间的动态演变。结果揭示了在集中管理系统环境下应急网络的动态。随着时间的流逝，应急响应网络变得更加分散，而不是集中化；中央组织的职能根据每个时期的应对需求而有所不同；随着时间的流逝，网络参与者的位置也发生了变化。研究结果还表明，在集中管理系统下，公共部门组织是应急网络的核心。非营利组织和私人组织在很大程度上被边缘化。具有集中式和分散式混合的混合网络可能会更有效。应以时间动态的方式考虑针对危险化学事故的ERN，并应更加重视公共部门组织，NPO和私人组织之间的合作，以提高应急响应效率。这些发现可能会为研究人员和从业人员扩展知识，以便从动态角度了解危险化学事故的应急响应网络，对于减少和控制危险化学事故造成的经济损失，社会风险和环境破坏具有重要意义。 （c）2019爱思唯尔有限公司。保留所有权利。

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