| As China’s economy getting stronger, the urbanization has been rapidly growth. The risk cities facing are growing while vulnerability is growing, urban public safety is becoming more and more important. Construction project safety accident is one of the risk sources of urban public safety Construction project safety accident is appeared frequency in recent years, it has important influence to the urban public safety. This paper will do some research on the influence mechanism on construction project safety accident and urban public safety. The main methods are used basic on literature reviews and exploratory, construction management, city design, sociology and system science are in details. The analysis tool is system dynamics. These methods are used to discuss the influence mechanism on construction project safety accident and urban public safety. The system dynamics model of the influence mechanism on construction project safety accident and urban public safety has been built. It has the theoretical significance of made up for the lack of relationship between existing research on the former to the latter and can effectively reduce the influence of the former to the latter, ensure the life property safety of the urban residents of practical significance.The main works of the paper are shown as below: The first chapter mainly discusses the paper selected topic background, combining research status at home and abroad analysis put forward the construction project safety accidents and the status quo of the urban public safety research, simply summarized the research ideas and methods in this paper. The second chapter is mainly discussed related theory this article are based on. The third chapter analysis the characteristics between the construction project safety accident and the urban public safety implications, urban public safety are divided into several subsystems, and studied the effect of the former to the latter mode and transmission path, constructs the structure framework and the influence mechanism of matching model. The fourth chapter on the basis of the questionnaires, the construction project safety accidents on the influence factor of urban public safety research, principal component analysis for the influence of the former to the latter composite scores, analysis the influence of some important factors. The fifth chapter has carried on the construction project on the impact of construction safety accidents on urban public security system dynamics modeling and simulation. Run assumptions proposed system dynamics model, analyzing the structure of system dynamics model, and based on a literature study and questionnaire analysis to establish model to simulate the required data, the result of the simulation, according to the simulation results are discussed. The sixth chapter combines theories and models proposed in this paper and relevant conclusions are analyzed and discussed, according to the analysis results from the prevention of construction project safety accidents, improve the level of urban total safety, emergency response measures when the accident happened three aspects put forward the countermeasures and suggestions.,... |