Transshipment site selection using the AHP and TOPSIS approaches under fuzzy environment

Transshipment site selection using the AHP and TOPSIS approaches under fuzzy environment

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Article ID: iaor20107840
Volume: 28
Issue: 9
Start Page Number: 1552
End Page Number: 1559
Publication Date: Jan 2008
Journal: Waste Management
Authors: ,
Keywords: decision theory: multiple criteria, analytic hierarchy process
Abstract:

Site selection is an important issue in waste management. Selection of the appropriate solid waste site requires consideration of multiple alternative solutions and evaluation criteria because of system complexity. Evaluation procedures involve several objectives, and it is often necessary to compromise among possibly conflicting tangible and intangible factors. For these reasons, multiple criteria decision‐making (MCDM) has been found to be a useful approach to solve this kind of problem. Different MCDM models have been applied to solve this problem. But most of them are basically mathematical and ignore qualitative and often subjective considerations. It is easier for a decision‐maker to describe a value for an alternative by using linguistic terms. In the fuzzy‐based method, the rating of each alternative is described using linguistic terms, which can also be expressed as triangular fuzzy numbers. Furthermore, there have not been any studies focused on the site selection in waste management using both fuzzy TOPSIS (technique for order preference by similarity to ideal solution) and AHP (analytical hierarchy process) techniques. In this paper, a fuzzy TOPSIS based methodology is applied to solve the solid waste transshipment site selection problem in Istanbul, Turkey. The criteria weights are calculated by using the AHP.

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