Study On Mechanism Of Stampede Accident In Outdoor Large-Scale Social Activities

In recent years, with the rapid development of society, a variety of outdoor large-scale social activities also is getting increased more and more daily. While bringing in the social and economic efficiency, they also have caused a series of public security problems. Stampede accident has already become one of the hot spots because of its sudden and serious consequence.First of all, in this paper, it is elaborated and analyzed that the definitions and the characteristics of the outdoor large-scale social activities and the domestic and foreign current situation in this field. It is summarized that the characteristics of stampede accident and the high-incidence areas in outdoor large-scale social activities based on statistics analysis concerned with global gathering place of the crowded stampede accident happening from 2000 to 2007. At the same time, it is analyzed that the causes of stampede accidents according to accident causation sequence theory, with Beijing Miyun stampede accident to illustrate. Secondly, it is discussed that the mechanism of the accidents based on not only safe capacity and continuum crowd flow model, but also from overall and local perspective for crowd control. In the process of the use of models, taking into account the theoretical and practical theory between the existence of a certain degree of errors, therefore influence coefficient is brought based on the fuzzy comprehensive evaluation that considers four factors such as human - matter - environment– management, which can be made closer to the actual situation The example of the Spring Festival Huangsi Temple Fair of Shenyang in 2008 is analyzed and studied. Finally, in view of the outdoor large-scale social activity the measures on the prevention and control of stampede accident are put forward based on"education -engineering - enforcement".