Study on interaction law of risk factors in airlines operating
Yuanzhuo Wang · Journal of Safety Science and Technology · 2012
According to the features of relevance and causality for the risk factors which affects the airline aircraft operation safety,the risk factors were analyzed from four aspects of human,machine,environment and management,which affected the airline aircraft operation safety.The relevance and causality between any two risk factors were judged by the civil aviation experts and airlines operating staff,and then the methods of graph theory were applied to build the adjacency matrix of risk factors and MATLAB simulation software was used to build the reachability matrix of the adjacency matrix,then the reachability matrix was decomposed and the risk factors were divided into five levels to form a multi-level hierarchical network model,in order to definitude different levels of risk factors and causal correlation effect,and to reveal the inherent laws of interaction risk factors.The results indicated that the network structural model could change indistinct relationship into intuitive model which has good causality and hierarchical structure,the evaluation of risk is also more objective,that shows only all the departments and the stuff of the airlines work together,and use system safety management means to avoid the interaction influence of risk factors could control the risk which affects the airline aircraft operation safety more effective.