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Rehabilitation projects are interventions that can lead to the transformation of the sociospatial structure of obsolescent neighborhoods The main intention of such projects is the creation andor improvement of social interactions after physical and functional interventions Urban Renewal Organization of Tehran UROT is tasked with identification of target obsolescent neighborhoods preparation of neighborhood development plans and implementation of rehabilitation projects to improve the quality of space and stimulate social interactions In this paper three urban spaces in different scales micro for neighborhoods meso for local and macro for translocal scales designed and implemented by UROT were selected as a case study By designing and filling a questionnaire and after analyzing research findings the effect of the scale of the urban project on different activities was evaluated based on the Gehl model Overall in the expanded model based on the scale of space an inverse ratio between the scale of space and both optional selective and social activities has been revealed
