Risk Assessment of Crowd Crushing and Tramping Accidents at Metro Rail Transit Stations

In order to assess the risk of crowd crushing and tramping accidents at metro rail transit stations ,the typical crowd crushing and tramping accidents at metro rail transit stations in China were analyzed .The theory of fault tree was used to qualitatively analyze the cause of accidents .The indicator system of the crowd crushing and tramping ac‐cidents at metro rail transit stations was proposed and developed in combined with the results of fault tree analysis .Data envelopment analysis (DEA) was used in the establishment of risk assessment model of crowd crushing and tramping acci‐dents .Huangzhuang Subway Station of Haidian ,Beijing was selected as a case study to test and analyze the risk assess‐ment model .The results show that 75% of the decision‐making units reach the DEA efficient standard ,and the relative safety efficiency indices of the decision‐making units ,which are none‐DEA efficiency ,are more than 0 .9 .The test results are generally consistent with the real situation ,which proves that the proposed risk assessment model is practical .