[Use of analytical hierarchy process model [AHP] in landfill site selection of semnan town]

ABSTRACT

Landfill site selection is an important action in integrated solid waste management process. Difference criteria should be paid attention in site selection, so using of special methods are necessary to assimilate the criteria. In this research, GIS software and Analytical Hierarchy Process were used. First of all, maps were built in considering to economical, social and environmental factors, in next step, each layer, was graded. Low grade showed non coordination or less coordination and high grade showed more coordination. Assimilate of graded map in AHP process, separates area into unsuitable, suitable and very suitable parts. Very suitable parts can have high priority in decision making and also suitable parts can have high priority for development projects in future