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Quantification of pilot workload via instrument scan
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Ephrath, A. Harris, R. L. ,. Sr Tole, J. R. Stephens, A. T. |
| Copyright Year | 1982 |
| Description | The use of visual scanning behavior as an indicator of pilot workload is described. The relationship between level of performance on a constant piloting task under simulated IFR conditions, the skill of the pilot the level of mental workload induced by an additional verbal task imposed on the basic control task, and visual scanning behavior is investigated. An increase in fixation dwell times, especially on the primary instrument with increased mental loading is indicated. Skilled subjects 'stared' less under increased loading than did novice pilots. Sequences of instrument fixations were also examined. The percentage occurrence of the subject's most used sequences decreased with increased task difficulty for novice subjects but not for highly skilled subjects. Entropy rate (bits/sec) of the sequence of fixations was also used to quantify the scan pattern. It consistently decreased for most subjects as the four loading levels used increased. |
| File Size | 672036 |
| Page Count | 17 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19820022024 |
| Archival Resource Key | ark:/13960/t05x74z6d |
| Language | English |
| Publisher Date | 1982-01-21 |
| Access Restriction | Open |
| Subject Keyword | Man/system Technology And Life Support Pilot Performance Abilities Task Complexity Workloads Psychophysiology Entropy Statistics Scanners Aircraft Pilots Instrument Flight Rules Mental Performance Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Article |
