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Évaluation d’un système de résolution de conflits, ERASMUS : apport de l’oculométrie comme mesure de la charge mentale chez les contrôleurs aériens en-route

Abstract : Air Traffic Control has to handle the strong and constant increase in air traffic density. In this context, mental workload experienced by air traffic controllers is a key research concept to maintain the actual safety level. ERASMUS is an automated aid system designed to reduce air traffic controllers’ workload. The purpose of ERASMUS is to compensate the effects of the air traffic growth by reducing the increased mental workload associated with a greater number of potential conflicts. Prior experiments designed to validate the ERASMUS system showed a reduction in ratings of mental workload, but only subjectives measures were used. In the present thesis, the first goal is to complete these first results by providing, for the first time, a real time objective measure of controllers’ mental workload. In this purpose, we had to develop a new non-intrusive eye-tracking platform in a fully realistic simulation environment. The eye movements of seven controllers, placed in a high-fidelity simulation, were recorded. Traffic sequences were manipulated (with vs. without ERASMUS). Consistent with a reduced workload hypothesis, results showed medium to large effects of ERASMUS on the amplitude of saccades, on the time spent gazing aircraft, and on the distribution of attention over the visual scene. Moreover, without ERASMUS, growth in the traffic density significantly increased pupil diameters. In contrast, when ERASMUS was activated, traffic density growth did not impact significantly pupil diameters. Finally, we discuss the impact of ERASMUS on mental workload and the use of pupillometric measures in an ecological air traffic control environment.
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Submitted on : Friday, October 7, 2011 - 8:52:23 AM
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  • HAL Id : tel-00630029, version 1

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Pierre-Vincent Paubel. Évaluation d’un système de résolution de conflits, ERASMUS : apport de l’oculométrie comme mesure de la charge mentale chez les contrôleurs aériens en-route. Psychologie. Université Toulouse le Mirail - Toulouse II, 2011. Français. ⟨NNT : 2011TOU20053⟩. ⟨tel-00630029⟩

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