the best one in the next stages. To overcome this problem we can
use an analytical hierarchy process (AHP).
The combination of GIS and AHP is a powerful tool to solve
the landfill site selection problem because GIS provides efficient
manipulation and presentation of the data, and AHP supplies consistent
ranking of the potential landfill areas based on a variety of
criteria (Sener et al., 2006).
A decision modeling procedure was developed, based on the
AHP, to locate nuisance facilities (Erkut and Moran, 1991).