Landfill Site Selection for Medical Waste Using an Integrated SWARA-WASPAS Framework Based on Spherical Fuzzy Set

Selecting suitable locations for the disposal of medical waste is a serious matter. This study aims to propose novel approach selecting optimal landfill using Multi-Criteria Decision-Making (MCDM) methods. For better considerations uncertainty in choosing landfill, MCDM methods are extended by spherical fuzzy sets (SFS). The identified criteria affecting selection location landfilling include three categories; environmental, economic, and social. Moreover, weights 13 were computed Spherical Fuzzy Step-Wise Weight Assessment Ratio Analysis (SFSWARA). In next step, alternatives analyzed ranked Weighted Aggregated Sum Product (SFWASPAS). Finally, order show accuracy validity results, proposed was compared with IF-SWARA-WASPAS method. Examination results showed that IF environment ranking not complete, method more reliable. Furthermore, ten scenarios created changing weight criteria, overall similar SF-SWARA-WASPAS