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Integrated Analytical Hierarchy Process (AHP) and GIS for Land Use Suitability Analysis

Analysis of land-use suitability requires consideration of variety of criteria. Application of GIS alone could not overcome the issue of inconsistency in expert opinion when trying to judge and assign relative importance to each of many criteria considered in a suitability analysis. To address this issue, the Analytical Hierarchy Process method is used in combination with the GIS tool. The paper presents how the integrated tool has handled effectively a land use suitability analysis for towns around the Anzali lagoon. At first the influential factors were identified. Then the relationships between various factors were obtained by the expertise. Then with modulation and overlay the layers in ArcGIS 9.3, due to influencing factors and the evaluated weight in AHP, the suitable map for structural developing was prepared.