Open AccessA SIMPLIFIED MULTI-CRITERIA EVALUATION MODEL FOR LANDFILL SITE RANKING AND SELECTION BASED ON AHP AND GIS
Author(s) -
Debishree Khan,
Sukha Ranjan Samadder
Publication year - 2015
Publication title -
journal of environmental engineering and landscape management
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.514
H-Index - 28
eISSN - 1822-4199
pISSN - 1648-6897
DOI - 10.3846/16486897.2015.1056741
Subject(s) - thematic map , site selection , analytic hierarchy process , ranking (information retrieval) , multiple criteria decision analysis , environmental science , geographic information system , civil engineering , environmental engineering , computer science , operations research , geography , engineering , cartography , machine learning , political science , law
This study used GIS based Multi-criteria Decision Analysis (MCDA) approach for evaluating the most environmentally suitable landfill sites in the study area. The weights of relative importance of the factors guiding landfill siting were estimated using pair-wise comparisons in AHP. The maps showing suitable landfill sites were generated applying a weighted linear combination (WLC) in GIS using a comparison matrix to aggregate different significant scenarios associated with environmental and economic objectives. To determine the appropriate areas where landfill sites can be located, thematic maps for all the criteria were generated using GIS. A final map was produced showing suitability for the location of the landfill sites. The suitable sites having an area equal to or above 4 ha at one place and 90% of which is barren land were considered suitable for landfill. The selected candidate sites were ranked to get the most desirable sites for landfill.