Advanced Terrain Displays for Transport Category Aircraft.
Final rept. Jan-Sep 91,
MASSACHUSETTS INST OF TECH CAMBRIDGE DEPT OF AERONAUTICS AND ASTRONAUTICS
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A preliminary evaluation of terrain information presentation methods was conducted in a part-task simulation study. Pilots qualified on autoflight aircraft used both paper and prototypical electronic instrument approach plate formats to obtain terrain information. Approaches were flown,using the MIT aeronautical Systems Laboratory Advanced Cockpit Simulator. During the simulation, terrain situational awareness was tested by issuing erroneous vectors into terrain. Pilots successfully detected and avoided terrain hazards only 3 out of 52 times 6. This low-hazard recognition rate is thought to be due to high level of confidence in Air Traffic Control ATC clearances, and highlighted the fact that current terrain depiction methods appear to be inadequate. To evaluate the increased effectiveness of advanced terrain depiction methods on electronic displays, several terrain situation display formats were designed and evaluated in a second simulation study. Spot elevation and smoothed contour terrain presentation techniques were examined using a separate moving map display dedicated to terrain information. in addition, a prototypical Graphical Ground Proximity Warning System GGPWS was developed and used to solicit pilot opinions and comments. Experimental methodology followed that of the preliminary terrain depiction study closely - erroneous vectors were again given by ATC, and pilot performance and opinion data were recorded. Map Displays, Terrain Displays, Pilot Performance, Cockpit Human Factors.
- Flight Control and Instrumentation