University of Tabriz Journal of Geography and Planning 2008-8078 20 56 2016 08 16 Fuzzy Analysis of Indicators in Assessing the Urban Development Potential (Case Study: Ghaffar Catchment) Fuzzy Analysis of Indicators in Assessing the Urban Development Potential (Case Study: Ghaffar Catchment) 193 217 4989 FA Masoud Safaiepour Department of Geography and Urban Planning, Shahid Chamran University of Ahvaz Hadi Alizadeh Geography and Urban Planning, Shahid Chamran University of Ahvaz Journal Article 2014 02 04 The research methodology of "descriptive-analytic" with the aim of <br />analyzing the indicators in the assessment of urban development in the <br />catchment Ghaffar has been carried out in area. Indicators of urban <br />development in the area according to available data resources include <br />12 factors of topography, vegetation, slope gradient, the land, soil <br />conditions, altitude, power user, the communication area, the <br />hydrology of the region, the economic and social area, region, land <br />use and fault conditions which are classified. To form database and <br />providing required layers of base map we used data on natural <br />resources of Khuzestan. To achieve the status of urban development in <br />Ghaffar catchment conversion layer and software were produced in <br />Arc GIS 10. According to the fuzzy membership functions of the <br />fuzzy map conversion and in order to analyze their situation and <br />assess the model of urban development we offered Ghaffar catchment <br />area a fuzzy gamma operator (Fuzzy Gama). Maps produced in the <br />ArcGIS software and fuzzy process and analysis layers show that <br />among selected indicators about 0.67 of the basin area is not suitable <br />for urban development. Test threshold of 0.7, 0.8 and 0.9 for gamma <br />analysis shows that, Gamma analysis phase with a threshold of 0.7 in <br />accordance with the conditions of the region and consistent with than <br />the limited parts of southeast and east bordering of the catchment <br />areas of basin for urban development is not appropriate. The research methodology of "descriptive-analytic" with the aim of <br />analyzing the indicators in the assessment of urban development in the <br />catchment Ghaffar has been carried out in area. Indicators of urban <br />development in the area according to available data resources include <br />12 factors of topography, vegetation, slope gradient, the land, soil <br />conditions, altitude, power user, the communication area, the <br />hydrology of the region, the economic and social area, region, land <br />use and fault conditions which are classified. To form database and <br />providing required layers of base map we used data on natural <br />resources of Khuzestan. To achieve the status of urban development in <br />Ghaffar catchment conversion layer and software were produced in <br />Arc GIS 10. According to the fuzzy membership functions of the <br />fuzzy map conversion and in order to analyze their situation and <br />assess the model of urban development we offered Ghaffar catchment <br />area a fuzzy gamma operator (Fuzzy Gama). Maps produced in the <br />ArcGIS software and fuzzy process and analysis layers show that <br />among selected indicators about 0.67 of the basin area is not suitable <br />for urban development. Test threshold of 0.7, 0.8 and 0.9 for gamma <br />analysis shows that, Gamma analysis phase with a threshold of 0.7 in <br />accordance with the conditions of the region and consistent with than <br />the limited parts of southeast and east bordering of the catchment <br />areas of basin for urban development is not appropriate. https://geoplanning.tabrizu.ac.ir/article_4989_95cab9097cfb5be4e26a93a598218552.pdf