Multifactor spatial analysis for landfill siting

Jehng-Jung Kao*, Hung Yue Lin

*Corresponding author for this work

Research output: Contribution to journalArticle

84 Scopus citations


Siting a landfill typically requires processing a significant amount of spatial data with respect to various siting rules, regulations, factors, and constraints. Manually performing such a spatial analysis with drawing tools is generally tedious. A modern geographical information system (GIS), although capable of manipulating spatial data to facilitate the analysis, lacks the ability to locate an optimal site when compactness and other factors are simultaneously considered. An appropriate siting model was therefore explored for use with a raster-based GIS. A mixed-integer programming model was developed to obtain a site with optimal compactness. A comparison was made between the model and two other previously proposed models in terms of their applicability and simplicity for raster-based data. The compactness model was further extended to include multiple siting factors with weights determined using map layer analysis functions provided by a GIS. This multifactor model was applied to analyze the effects of varied weights and factors on making a siting decision.

Original languageEnglish
Article number11699
Pages (from-to)902-908
Number of pages7
JournalJournal of Environmental Engineering
Issue number10
StatePublished - 1 Jan 1996

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