Analysis on Constitution and Coupling of Air Traffic Security Risk

Safety risk of air traffic control was analyzed in detail from the aspects of operator,equipment,environment of air traffic control,and management.The basic theory of the coupling of the safety risk in air traffic control was discussed and "coupled risk on single factor","coupled risk on two factors" and "coupled risk on more factors" were proposed.And then different types of coupled risks in air traffic management were discussed in further.According to the statistics of unsafe events of air traffic control in the recent 10 years,it is found that the more risky factors in the coupling,the less likely unsafe events will happen,however,the severer the unsafe events will be.Analyzing the overall risks faced by the air traffic control can help the administrators to identify and control the risk effectively.