Zoning and spatial approach on crisis management with emphasis on Social - Physical vulnerability of Cities Against Earthquake (Case Study of Ilam Province)

Abstract Cities are the focal points that have accepted human beings, along with their different needs, and the highest human needs have been crystallized in it, objectively. Risk estimation and evaluation of seismic vulnerability from a city, consider important issues. In other words, risk is a combination of risk and vulnerability, and since vulnerability may take various forms such as life, functional, social, financial vulnerability or a combination of these, Risk estimation requires a comprehensive approach. And it is necessary to use a variety of methods, criteria and specialties in it. Consequently, the present study is based on the "developmental-applied" approach and, in terms of the research methodology, it is a combination of "descriptive, documentary, analytical, and field" methods. Thus, the necessary variables are collected and reviewed the relevant organizations, "Provincial Municipalities, Provincial Governorate, Statistics Center of Iran and Library Studies," by using the relevant variables in the two "social and physical indices". In the next step, the "VIKOR" and "TOPSIS" methods have been used with the spatial approach for analyzing the findings. Also, the software "ArcGIS, GRAFER8, VISIO, SPSS, MINITAB" and other necessary applications have been used to complete the information and appropriate outputs. The results of the research show that there is a large difference between the index and the cities from the vulnerable point of view. Because, the weight of the index is very different, which varied from (0) percent to (1) percent. Also, in terms of location, the TOPSIS value was 0.372 percent. Therefore, the magnitude of the vulnerability caused by the earthquake, in addition to its importance in crisis management, the need to examine it in different index is the necessities of urban planning.