1992-10-01

Cockpit Data Link Displays: An Evaluation of Textual Formats 922025

Data link technologies are being investigated for air/ground information transfer for commercial aircraft operation. This study was designed to measure which of four alpha-numeric display formats for display of data link information would lead to the quickest and most accurate memory retrieval in a part-task simulation environment. Pilots viewed a clearance for 10-15 seconds and were subsequently queried about the content of that clearance. Speed and accuracy of responses were measured across three retention tasks. The three retention tasks included free recall of a particular clearance, recognition of a previous clearance, and the comparison of element values between a previously displayed and current clearance. Each format was tested with and without a distraction task. Subjective ratings of each format were also collected. The analyses revealed no significant differences for reaction time or accuracy among the four formats. Explanations for these results as well as alternative methodologies are discussed.

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