Management Review ›› 2020, Vol. 32 ›› Issue (10): 276-292.

• Emergency Management • Previous Articles     Next Articles

A Construction Method of Hazard-affected Region for Disaster Scenario Evolution

Qie Zijun1,2, Rong Lili2   

  1. 1. Faculty of Humanities and Social Science of DUT, Dalian 116024;
    2. Institute of Systems Engineering, Dalian University of Technology, Dalian 116024
  • Received:2017-10-18 Online:2020-10-28 Published:2020-11-07

Abstract: This paper focuses on the construction method of hazard-affected regions in order to adapt to the disaster scenarios building and the inference of scenario evolution for regions with different characteristics. Disaster scenario of a region can be described through disaster consequence and evolution trends of disaster consequence. Since the states of elements at risk directly reflect the disaster consequence and the complicated interrelations between elements at risk lead to the diversity of evolution trends, elements at risk and interrelations between elements at risk are chosen as the core to construct the disaster scenario of a hazard-affected region. Firstly, from a system point of view, the components of disaster scenario are determined. Base on the evolution attribute of states of elements at risk, an Egg-Yolk model of the affected area of an element at risk is proposed and a kind of topological interrelation of impact among elements at risk is defined. On this basis, a generation process of regional interrelation network of elements at risk is proposed. Then three regions are designed to illustrate the feasibility and effectiveness of this method. The results show that constructing a disaster scenario with regional characteristics will help with not only the pre-event recognition and evaluation of regional disaster risk, but also the post-event analysis of disaster evolution trends.

Key words: disaster scenario, states of elements at risk, topological interrelation of impact, regional disaster risk, evolution mode