United States Department of Transportation
i
A pilot evaluation of text display formats for weather information in the cockpit
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1995-10-01
[PDF-392.21 KB]
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NTL Classification:NTL-AVIATION-AVIATION;NTL-AVIATION-Air Traffic Control;NTL-AVIATION-Aviation Human Factors;
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Abstract:This study focuses on the weather (WX) services portion of Data Link. A
two-phase evaluation was conducted with 16 air transport (ATP) and general
aviation (GA) pilots. The pilots evaluated four data formatting options and
four data entry methods. Measures of performance included times, errors, and
subjective ratings. The four formatting options included teletype (RTTY)
horizontal and vertical, and English (ENG) horizontal and vertical. The four
data entry methods included line select keys (bezel), cursor select, number
select, and typing. The analysis shows that the ENG vertical format was the
best in terms of information retrieval time and error reduction. The ENG
vertical format was subjectively preferred by the GA pilots. The RTTY
horizontal format was preferred by the ATPs for two of the five weather product
types. The analysis indicates that the bezel key data entry was best in terms
of time. Both pilot qroups (ATP and GA) subjectively preferred the bezel
method. The study was part-task in nature. The pilots were not under the
stresses of time and flight. The results are nonetheless valuable and should
be validated in a more sophisticated evaluation environment. 110p.
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