2014 Volume 16 Issue 2 Pages 153-166
In Air Traffic Control (ATC) tasks, controllers face paradoxical demands for dealing with increasing amounts of air traffic with keeping (or enhancing) safety and efficiency. Controllers handle the demands in uncertain and variable traffic situations by their dynamic performance adjustments. Thus, controllers' working methods that constantly achieve successful air traffic operations should be understood not only from the perspective of their optimality for an existing situation but also from the perspective of their tolerance for the variability of the situation. In the present research, toward supporting training of controller trainees, an additional function for visualizing safety margin of controllers' control strategies for situational variability called Variability-Tolerance Visualizer (VTV) was developed and implemented on our process visualization tool of ATC tasks. The basic validity of VTV was demonstrated through detailed comparison between analysis results of control strategies obtained by VTV and those by ATC instructors.
