عنوان مقاله [English]
Optimization modeling has become a powerful tool to undertakeemergency logistics problems since its first adoption in maritime disaster situations in the 1970s. This paper reviews optimization models usedin emergency logistics, utilizingtechniques of content analysis. Disaster operations can be performed before or after disaster occurrence. Short-notice evacuation, facility location, and stock pre-positioning are drafted as the main pre-disaster operations, while relief distribution and casualty transportation are categorized as post-disaster operations. According to these operations, works in the literature are divided into three parts: facility location, relief distribution and casualty transportation, and other operations. For the first two parts, the literature is structured and analyzed based on the model types, decisions, objectives, and constraints. Finally, through the content analysis framework, several research gaps are identified and future research directions are proposed.