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Quantification of crew workload imposed by communications-related tasks in commercial transport aircraftInformation theoretic analysis and subjective paired-comparison and task ranking techniques were employed in order to scale the workload of 20 communications-related tasks frequently performed by the captain and first officer of transport category aircraft. Tasks were drawn from taped conversations between aircraft and air traffic controllers (ATC). Twenty crewmembers performed subjective message comparisons and task rankings on the basis of workload. Information theoretic results indicated a broad range of task difficulty levels, and substantial differences between captain and first officer workload levels. Preliminary subjective data tended to corroborate these results. A hybrid scale reflecting the results of both the analytical and the subjective techniques is currently being developed. The findings will be used to select representative sets of communications for use in high fidelity simulation.
Document ID
Document Type
Conference Paper
Acton, W. H.
(Systems Research Labs., Inc. Dayton, OH, United States)
Crabtree, M. S.
(Systems Research Labs., Inc. Dayton, OH, United States)
Simons, J. C.
(Systems Research Laboratories, Inc. Dayton, OH, United States)
Gomer, F. E.
(Systems Research Labs., Inc. Dayton, OH, United States)
Eckel, J. S.
(General Physics Corp. Dayton, OH, United States)
Date Acquired
August 12, 2013
Publication Date
January 1, 1983
Subject Category
Man/System Technology And Life Support
Funding Number(s)
Distribution Limits
No Preview Available