Davood Darvishi - Department of Mathematics, Payame Noor University, Tehran, Iran.
Hassan Ahmadi Choukolaei - Department of Industrial Engineering, Faculty of Industrial Technologies, Urmia University of Technology, Urmia, Iran.
Soheil Shafaee - Department of Industrial Engineering, Payame Noor University, Tehran Iran.

All governments especially those having a high risk of natural disasters must have a comprehensive and implementable plan. In Iran, the placement of relief centers for the injured is usually done experimentally by relief organizations without considering the necessary standards. In this research, according to the crisis management standard, the criteria are classified and determined as layers of information in the Geographic Information System (GIS). Then, the selected relief centers in the study area were evaluated according to the standard criteria and using the obtained matrix, the research criteria were weighed by entropy method. Finally, using net flows, performance scores and research constraints, the optimal options were identified by the PROMETHEE ۵ method. The strengths and weaknesses of each of these options were also assessed. The results showed that half of the relief centers considered in the region were not optimal and had poor performance in most of the effective and important criteria for locating relief centers. Criteria of population density and distance from worn tissue were the most important criteria in this study.

Location, PROMETHEE method, Geographical information system, Relief centers