Environmental Security Evaluation Using Space Syntax Theory and Place-Check Technique; Case Study: Saraseyb Neighborhood

Security has always been one of the most important human needs, this notion is defined once a person is present in an urban space. Therefore, the physical aspects of the city play an important role in its quality. One of the leading approaches to reducing crime, and consequently increasing security, is CPTED, which was inspired by Jane Jacobs's "Eyes on the Street" and Oscar Newman's "Defenseless Spaces" theories. But these theories have neglected addressing the quality of people's presence in the community and its relation with security issues. Bill Hayler's Space Syntax theory examines this phenomenon as a relation to co-presence of citizens. For this purpose, the present paper first examines the environmental security in Sarasiab neighborhood of Tehran using a checklist, based on the CPTED principles and strategies. Then, using Depth Map software, the neighborhood map has been extracted and the impact of space syntax on its environmental security has been evaluated. The results of the above findings, which have been gathered in the SWOT table, indicate a low level of environmental security in the Sarasiab neighborhood. For this reason, it has come up with the necessary suggestions for promoting environmental safety in the form of strategic design principles. Finally, modeling the impact of proposed physical changes to improve spatial configuration, interconnection and environmental security has been carries out.