Site Selection of Temporary Settlement and Relief Sites After Earthquake in Historical Zone of Yazd by AHP, Fuzzy Logic, FAHP, GIS

Abstract

The main requirement of damaged people due to earthquake is having a shelter and providing them rescuing services at the earliest possible time. Immediately after the earthquake, it is not possible to provide suitable housing for the earthquake damaged people. Therefore, appropriate locations (from the ciew point of access to urban usages, security, faraway from hazardeous areas and . . .) shall be provided for such critical times. difficult access into the historical buildings for providing helping services and lack of open spaces in spite of the high dencity of population will increase the volunerability againt the accidents in these areas. In this research, the historical texture of Yazd city has been studied with the aim of determining the best location for settlement of rescue teams for the purpose of performing rescue operations. To achieve this goal, firstly the effective factors which are depondign on the structural and natural conditions of the area were introduced and GIS layers of such criteria were produced. Then for removing the uncertainties in the input data and personal judgement about the importance of criteria, Fuzzy method was used and for this purpose, for combining the maps, fuzzy superposition model was used to form Fuzzy inference networks and it was used for determining the appropriate locations. Using the properties of fuzzy sets in Analytical Hierarchy process, Fuzzy Analytical Hierarchy Process was created which increased the efficiency of the decision making. Finally, options for relief and settlement sites after the earthquake was identified and based on some criteria such as proximity to roads, open space areas and distribution of relief and settlement centers were prioritized and determined. The results also indicate the lack of adequate spaces for settlement of victims of earthquake in the historical context of Yazd city

Keywords

• fuzzy logic
• ahp
• f ahp
• site selection
• temporary housing
• historical textures
• gis