The study was designed to explore global positioning system/long range navigation (GPS/LORAN) receiver programming performance under simulated flight conditions. The programming task consisted of entering, editing, and verifying a four-waypoint flight plan. The task demands were manipulated by varying flight turbulence and the time interval between test sessions. Flight performance data indicated that subjects were well trained on the flight task; significant effects of turbulence and test interval were not found. Programming performance was very good and critical errors occurred on only 13% of the test trials. Examination of the conditions surrounding each error indicated that specific display design and system logic attributes contributed to the errors. In addition, examination of error recovery methods showed that non-intuitive menu structures complicated and confused the recovery process. Pilots rarely recalled doing anything wrong when errors occurred, suggesting that the receiver interface design was opaque and did not provide a good understanding of system function. Recommendations for GPS/LORAN receiver controls, functions, menu structure and logic, error recognition and recovery, and general usability are discussed.


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    Title :

    Pilot GPS/LORAN Receiver Programming Performance: A Laboratory Evaluation


    Contributors:
    E. F. Madigan (author) / V. M. Shearer (author) / D. Eldredge (author) / M. S. Huntley (author)

    Publication date :

    1994


    Size :

    97 pages


    Type of media :

    Report


    Type of material :

    No indication


    Language :

    English





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