Factors and Consequences of urban sprawl in the suburbs subject: shahed shahr Shahriar

The Shahed Shahr town in Shahriar city has been expanded in various dimensions of physical, economic, and social aspects in recent years. Considering different aspects of urban sprawl and integrating the villages into the cities can be helpful to picture a more accurate perspective on the future physical development of the city. Therefore, the present study has analyzed the factors of urban sprawl and the effects of economic, socio-cultural and environmental- physical integration of rural settlements into Shahed Shahr from residents' point of view. The Data needed for this research has been collected by satellite images of T.M Landsat 5 in two periods of time, years 1996 and 2016, remote examining techniques and the completion of questionnaire. The Q method findings showed that the several factors of population growth and migration, the profitability and investment in real estates, the vulnerability of laws, weak regulation and supervision of the government, the weak productive activities and investment accelerated the urban enlargement in two recent decades . Also, the results of the urban sprawl in spatial development of Shahid Shahr in Delphi method showed that the expansion of villa gardens and urban construction with an average of 7.8, ethnic integration and reduction of social cohesion and employment structure changes with an average of 9.8, the destruction of gardens with an average of 8.8, reduction of crop water in favor of urban drinking water with an average of 6.5%, are the clear examples of the spatial effects of urban sprawl expansion in the area.