Safety performance monitoring and measurement of civil aviation unit

A method of safety performance measurement is proposed to monitor the safety management process of civil aviation unit (CAU) with a series of safety performance indicators (SPIs). All these SPIs are arranged in a three-level model based on the analytic hierarchy process (AHP) and Delphi method, called the DAHP model, which takes full advantage of the expert knowledge and quantitative calculation. The weight of each SPI is estimated by the DAHP model, while its score is monitored and measured quantitatively with the two values of the standard deviation and average values of the preceding historical data points. The proposed method was tested successfully on the real data of a regional CAU in China, reflecting the CAU's safety management state immediately and quantitatively.