Citation

Knecht WR. Hum. Factors 2008; 50(4): 565-575.

Affiliation

Maneuver Space Technologies, Pocasset, OK 73079, USA. wknecht@maneuverspacetechnologies.org

Copyright

(Copyright © 2008, Human Factors and Ergonomics Society, Publisher SAGE Publishing)

DOI

unavailable

PMID

18767518

Abstract

OBJECTIVE: This study explores operators' ability to use a multidimensional, nonveridical control display. BACKGROUND: Veridical displays represent realistic scenes. State space displays represent nonveridical n-dimensional information based on informative coordinate axes plus variable features such as color and shading. Empirical investigation of state space displays is relatively new to human factors research. METHOD: Twelve licensed general aviation pilots flew flight scenarios, trying to deviate as little as possible from a preassigned course while still maintaining standard en route separation from traffic. Flight performance using only a veridical cockpit display of traffic information (CDTI) was compared with performance using the CDTI augmented by a 4-D nonveridical state space collision avoidance system (CDTI+4CAS). RESULTS: Using moderate traffic density and complex traffic geometry, the CDTI+4CAS condition showed performance superiority over the baseline CDTI-only condition for five of five dependent measures of maneuver efficiency, four of four measures of maneuver safety, and six of nine measures of user workload. CONCLUSION: Results suggest that nonveridical information display may enhance operator performance on a control task involving simultaneous processing of multidimensional information. APPLICATION: Nonveridical information displays have potential application wherever human control of multidimensional processes is involved.

Language: en