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Head-up display symbology for surface operations: Comparisons among scene-linked symbology sets for optimum turn navigation. (1999)
Recent work has shown that T-NASA's "scene-linked" head-up display (HUD) symbology improves the pilot's ability to taxi in low-visibility conditions. However, due to the HUD's limited field-of-view (FOV), the current symbology frequently disappears from view during turns. We discuss the results of a study comparing 4 different types of scenelinked turn symbologies. Using a visually-based parttask simulator, 11 airline pilots taxied a simulated B-737 through 42 taxi routes at Chicago's O'Hare International Airport. The taxi routes contained several turns with varying degrees of angularity. Visibility for all routes was conducted in daytime, 300 ft RVR conditions. The results of the study indicate that scene-linked markers (poles with flags) that are placed beyond the turn provide relative distance cues that can be used for improved turn performance, effectively mitigating FOV limitations for HUD scene-linked symbology.
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Atkins, M.L., Foyle, D. C., Hooey, B. L., & McCann, R. S., (1999). Head-up display symbology for surface operations: Comparisons among scene-linked symbology sets for optimum turn navigation. In R. S. Jensen, B. Cox, J. D. Callister, & R.Lavis (Eds.), Proceedings of the Tenth International Symposium on Aviation Psychology, 2 , 784-790. Columbus, Ohio: Ohio State University.
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