Landfill siting using GIS, fuzzy logic and the Delphi method

The focus of this paper is on the development of an evaluation methodology for landfill siting. The first part of the paper presents the methodology developed, utilising GIS technology for the analysis and visualisation of the geographic data, and fuzzy logic for the evaluation of the final results. The Delphi method is also utilised to determine the membership functions used in the fuzzy logic approach. In the second part, a case study is presented, concerning one of the twenty-seven Prefectures of Egypt. Finally the advantages and disadvantages of the methodology are discussed.