DETERMINATION OF WEIGHT FOR LANDFILL-SITING CRITERIA UNDER CONFLICTING BIFUZZY PREFERENCE RELATION
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Date
2011
Journal Title
Journal ISSN
Volume Title
Publisher
Journal of Sustainability Science and Management
Abstract
Selection of suitable landfill sites becomes more relevant as a community population
increases. Potential landfill sites must be carefully screened to ensure the chosen site meets all
engineering, geological, and regulatory criteria. However, choosing the right criteria and its
contributions toward landfill-siting selection are very much conflicting notions and far from conclusive.
Weights for landfill-siting criteria are seen as less tangible and may be seen differently. This paper
investigates the determination of weights for ten criteria in landfill-siting problems using a conflicting
preference approach. Three landfill management experts from three different municipalities in Kedah,
Malaysia were interviewed to elicit conflicting judgements data over the criteria of landfill-site
selection. The judgement data were aggregated using the proposed five-steps of conflicting bifuzzy
preference relations. In this investigation, it is found that the criteria of Political Issues gained the
highest weight followed by the criterion of Land Use. The results offer a good input to policy makers
in landfill management, especially in a situation where weight-determination solutions are needed.
Description
Keywords
Landfill-siting, Conflicting bifuzzy preference, Intuitionistic fuzzy sets, Criteria weights, Decision-making