Physical Characteristics of Urban Green Spaces in Relation to Perceived Safety

Safety is an indispensable condition of livable cities. Increasing fine-scaled understanding of the relationship between physical characteristics and perceived safety can provide reliable evidence to guide safety design, which in turn contributes to the livability of cities. To reach this goal, 30 sample sites were selected to represent the diversity of urban green spaces in Xuzhou, eastern China. The environment-related and crime-related perceived safety of these sites during the daytime and evening were evaluated by 717 participants who were invited through a snowballing method. The value of overall perceived safety was decided by the mean score of the two types of perceived safety. The main results include: (1) good maintenance of vegetation, open view, low locomotive accessibility of water, and more aquatic plants can predict a higher overall perceived safety during the daytime; (2) higher illumination and lighting sources in the distance of vision indicate a higher overall perceived safety during the evening; (3) females are more worried about the crime-related perceived safety than males during the daytime or evening.