DISPLAY DIMENSIONALITY AND CONFLICT GEOMETRY EFFECTS ONMANEUVER PREFERENCES FOR RESOLVING IN-FLIGHT CONFLICTS

摘要

With the presence of a cockpit display of traffic information (CDTI) that providesgraphical airspace information, pilots can use a variety of conflict resolution maneuversin response to how they perceive the conflict. Inconsistent preference findings fromprevious research on conflict resolution using CDTIs may be due to inherent ambiguitiesin 3-D displays and/or a limited range of conflict geometries. This paper describes astudy that investigates conflict resolution maneuver preferences using three displays withdifferent frames of reference and a wide range of conflict geometries. Results indicatethat 3-D displays with interactive viewpoints reduced spatial ambiguities. The interactive3-D displays produced a preference for vertical maneuvers over lateral similar to a 2-Dcoplanar display; however this preference was reversed under increased workloadconditions for both 3-D displays. Pilots in all three display conditions showed apreference to maneuver vertically away from intruders, though this was eliminated (orreversed) as workload increased. The 2-D coplanar display induced a preference tolaterally turn away from approaching intruders, which overwhelmed a trained "turn right"preference.