Security is one of the most critical factors affecting the quality of urban spaces. Nowadays, most of these spaces have become merely pathways with neither social life nor sense of belonging to it. Insufficiency of public surveillance along with weak sense of control and surveillance results in spaces with high crime rate. In the late 60s and early 70s, high crime statistics in open urban spaces around America and Europe, forced many city planners to provide physical and cultural solutions for it. Sensitive environmental design can simultaneously prevent the occurrence of crime and increase the control and surveillance over the public spaces. The main purpose of this paper is to achieve the most critical factors enhancing safe urban spaces. The research method is descriptive analysis and is done by comparative study on three outstanding theorists’ point of view toward the subject. Research findings identify that crime prevention is largely achieved through applying territoriality, surveillance and social interaction factors in environmental design.
