Fig. 2. Example of ETA Techniques application. Reused (Revised, Adapted) from the article of Sun et al. (J Aviat Technol Eng 2011;1:19) [13].
ATC: Air Traffic Control, TCAS: Traffic Collision Avoidance System, ETA: Event Tree Analysis.

Korean J Aerosp Environ Med 2023;33:16~26 https://doi.org/10.46246/KJAsEM.230003