Human Factors Issued Associated With Cockpit Display of Traffic Information (Cdti)

1999 ◽  
Author(s):  
Keyword(s):  
Human Factors ◽  
Traffic Information ◽  
Cockpit Display

Display Dimensionality and Conflict Geometry Effects on Maneuver Preferences for Resolving in-Flight Conflicts

2005 ◽  
Vol 49 (1) ◽  
pp. 40-44 ◽  
Author(s):  
Lisa C Thomas ◽  
Christopher D Wickens
Keyword(s):  
Conflict Resolution ◽  
Limited Range ◽  
Frames Of Reference ◽  
Traffic Information ◽  
Cockpit Display ◽  
Wide Range ◽  
Geometry Effects

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

Effects of Symbol Brightness Cueing on Attention during a Visual Search of a Cockpit Display of Traffic Information

2002 ◽  
Vol 46 (17) ◽  
pp. 1599-1603 ◽  
Author(s):  
Walter W. Johnson
Keyword(s):  
Visual Search ◽  
Traffic Information ◽  
Future Research ◽  
Search Performance ◽  
Primary Interest ◽  
Cockpit Display ◽  
Intensity Condition ◽  
Search Directions

This study investigated visual search performance for target aircraft symbols on a Cockpit Display of Traffic Information (CDTI). Of primary interest was the influence of target brightness (intensity) and highlighting validity (search directions) on the ability to detect a target aircraft among distractor aircraft. Target aircraft were distinguished by an airspace course that conflicted with Ownship (that is, the participant's aircraft). The display could present all (homogenous) bright aircraft, all (homogenous) dim aircraft, or mixed bright and dim aircraft, with the target aircraft being either bright or dim. In the mixed intensity condition, participants may or may not have been instructed whether the target aircraft was bright or dim. Results indicated that highlighting validity facilitated better detection times. However, instead of bright targets being detected faster, dim targets were found to be detected more slowly in the mixed intensity display than in the homogenous display. This relative slowness may be due to a delay in confirming the dim aircraft to be a target when it was among brighter distractor aircraft. This hypothesis will be tested in future research.

Sign in / Sign up

Export Citation Format

Share Document