Abstract:

In order to clarify the key influencing factors of urban public safety, and to solve problems of small research area, single influencing factor, strong subjectivity of evaluation methods, and lack of pertinence of countermeasures in previous studies, urban public safety risk assessment index system and assessment model were established based on basic theory of risk assessment and factor analysis. Then, with Wuhan city as an example, public safety risk assessment was conducted, and corresponding risk control measures were put forward. The results show that the risk evaluation index system of "disaster severity-risk response capability" has good applicability to factor analysis, and the evaluation model can effectively identify the key factors affecting urban public safety. The four major ones for Wuhan are urban development level and infrastructure construction, accident disasters, environmental impact, and geological disasters and their prevention and control. From 2010 to 2017, public security level in Wuhan is generally on a rise, and by improving risk response ability, public safety level of Wuhan can be greatly improved.

Key words: urban public safety, risk assessment, control countermeasure, Wuhan city, factor analysis