A raster-based C program for siting a landfill with optimal compactness

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Abstract

Landfill siting requires performing spatial analyses for various factors to evaluate site suitability. A geographical information system, although capable of effectively manipulating spatial data, lacks the capability to locate an optimal site when compactness and other factors are considered simultaneously. In our previous work, a mixed-integer compactness model was proposed to overcome this difficulty. However, computational time with a conventional mixed-integer programming package for solving the model is time consuming and impractical. Therefore, in this work, a C program is developed, based on a proposed raster-based branch-and-bound algorithm. The program can implement multi-factor analyses for compactness and other siting factors with weights prespecified by the user. An example is provided to demonstrate the effectiveness of the program.

Original languageEnglish
Pages (from-to)837-847
Number of pages11
JournalComputers and Geosciences
Volume22
Issue number8
DOIs
StatePublished - 1 Oct 1996

Keywords

  • C
  • Compactness
  • Geographic Information System
  • Landfill siting
  • Optimization
  • Raster
  • Spatial analysis

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