PHYSICAL SPATIAL DEVELOPMENT: A GIS ANALYSIS WITH EMPHASIS ON ENVIRONMENTAL IMPACTS-CASE STUDY NALOS CITY, IRAN

Unplanned urban developments have led to changes in uncontrollable urban spatial structure. for thisreasons, informed guidance, principle organization and spatial planning are necessary for urban sprawland development. in this research, different forms of urban development were considered anddevelopment basic barriers including rivers, topography, geology, ecological conditions, facilities andindustries were determined and the role of each one was surveyed. development trends that are based oneffective parameters especially environmental impacts were modeled with geographic informationsystems. the quality of urban planning and management can be upgraded when available and valid dataare handled in an advanced manner with the aid of geographic information systems. the innovativetechnology can support planning and decision making by offering relatively quick response on analyticalquestions and monitoring issues. experienced expert determined the degree and primacy of urban sprawland development parameters generally and for nalos case study, these parameters and criteria and theirweights were marked, then were modeled with geographic information systems for nalos developments.with using gis and it capabilities in calculation of land size forecasting for nalos development and itspositioning we could take a step in planning directions such as sustainable development achievements.