Validity Evaluation MADM Methods for Suitable Urban Spheres Development in the Azarshahr Shahrestan

Recently, MADM methods of spatial analysis has been expanded in Arc GIS. MADM methods are powerful set of techniques and processes to designing, evaluating and ordering decision alternatives. The purpose of the research is validity valuation of MADM methods in suitable urban spheres development of study area. We selected 8 criteria (slope, aspect, elevation, land use, distance of: river, city areas, main roads and fault). Method of research is descriptive–analytical. We used the AHP model in the software of Expert Choice for weighting the criteria. There are many MADM methods. In this paper we used four models (SAW, TOPSIS, VIKOR and AHP). Then the above models are used to evaluate the criteria in case study by Arc GIS software. In this article also each model classified to 5 classes (very unsuitable, unsuitable, moderately suitable, suitable and highly suitable). Finally, the overall accuracy and kappa coefficient in ERDAS IMAGINE software used for assessment validity of techniques. According to the kappa coefficient, AHP is 83.14% in the first rate. By comparing the results of each model AHP is the most appropriate.