This study investigated pilots' taxi performance and distribution of visual attention with four different head-up display (HUD) symbology formats: Command-guidance, Situation-guidance, Hybrid, and a baseline, No-route guidance. Taxi speed and centerline accuracy were highest with Hybrid and Situation-guidance whereas Commandguidance and No-guidance resulted in increased visual attention to the head-down map display and side window displays. These results are thought to be due to lack of sufficient preview information with the Command-guidance symbology. The conformal route information of the Situation-guidance and Hybrid HUD formats provided a common reference with the environment, which may have supported better distribution of attention.
Hooey, B. L.,
& Foyle, D. C.
(2005). Head-Up Display Symbology for Surface Operations: Eye Tracking Analysis of Command-Guidance vs. Situation-Guidance Formats. 2005 International Symposium on Aviation Psychology, 835-841.