Abstract: For the sake of studying aircraft taxiing conflicts in the big airports without aerodrome surveillance radar, aircraft taxiing conflict models were built, and an airport hot-spot identification method taking into account spatial and temporal overlap of aircraft taxiing tracks based on ADS-B data. Effects of both the heading difference threshold and the distance threshold on the hotspots were studied. The proposed method was used to identify hotspots in a certain airport in the southwest of China. The results show that the method of hot-spot identification based on taxiing track of spatial and temporal overlap can be used to identify hotspots effectively.

Key words: airport safety hot spot, taxiing conflict, surface surveillance radar, spatial and temporal overlap, automatic dependence surveillance broadcasting(ADS-B)