An integrated decision support system for dam site selection

Selection of suitable site for dam is one of the problems associated withwater resources management, and it is dependent on a set of qualitative and quantitativecriteria. such problems can be resolved using multi-criteria decision-making (mcdm)approaches. this study aims to develop a mcdm method integrated with fuzzy logic andgroup decision-making, specically focused on dam site selection. a fuzzy ahp methodwas extended to group decision making, and then the resulting group fuzzy ahp wascombined with the vikor method. in the integrated method, fuzzy concepts were usedto account for decision-makers' subjective judgments when considering the uncertainties ofthe site selection process. group fuzzy ahp was used to determine the weights of dierentcriteria and vikor was used to rank alternatives. the integrated method was applied toselection of the optimal site for an earth dam in harsin city, iran. the results show thatthe proposed method is an eective and reliable method in selecting the optimal dam site.