Research And Model Controller’s Taking Over Position Process And Risk Analysis Based On BPMN

With the rapid increasing of air traffic flow in China, the most important task is ensuring the safety of air traffic control. Air traffic management system is the result of complex interactions and joint cognitive among human operators, procedures and technical system, which also contains many business processes. Air traffic control is a continuous security industry. Due to the special nature of the control work, among controllers take over position frequently. Considering the safety issues, taking over position plays an important role among controllers’ work flow. So controllers should focus on obeying the rules strictly and improving the quality of taking over position effectively.In this paper,controllers’ taking over position task is studied based on BPMN model, which is standard, complete and extended. So this paper intends to combine Business Process Model and Notation with Fault Tree Analysis to support human error assessment both on qualitative and quantitative, while assess risk of business processes. Air traffic control contains en-route control, Arrival/departure control and Aerodrome control. Differenttaking over position process model should take the special features of air traffic control into consideration.In this paper, en-route controller’s task is analysed, and taking over position processes is establishedaccording to the requirements of BPMN model. Controllers are the main participant in taking over position. In this paper, human error analysis of ARTCC controllers is studied based on fault tree analysis method. FTA is one of process hazard analysis method, on the one hand, this method can be aimed at finding out hazard and analysis factors in the process, on the other hand, this method also can calculate the probability of top event and importance.In order to realize the risk analysis of task itself and hazard transmitting, the BPMN model was extend by combining with fault tree analysis. This method can help to identify key risk factors of taking over position tasks and to attain reasonable quantitative risk level calculation. In addition, the method is vital important topropose forward improvement measures and improve air traffic safety level.