Combining with the experience of Beijing, Shanghai, Xiong'an, and other cities and regions, this paper explores the connotation of urban safety system, and combs the internal logic of urban safety system from the perspective of whole life cycle. Starting with three kinds of planning systems:master, detailed and special plan, the paper constructs an urban safety system which is transmitted and implemented from strategic and tactical level to operational level, and clarifies positioning, functions and key points of urban safety content at different levels to form the main ideas for building urban safety system. This paper also focuses on exploration of urban security systems at the master planning level and puts forward planning strategies and control measures of planning ahead at the strategic level, responding systematically at the tactical level and landing measures at the governance level.

urban safety  /  spatial planning  /  disaster prevention system