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Journal Article

Citation

Bliss JP, Acton SA. Appl. Ergon. 2003; 34(6): 499-509.

Affiliation

University, Norfolk, VA 23529, USA. jbliss@odu.edu

Copyright

(Copyright © 2003, Elsevier Publishing)

DOI

unavailable

PMID

14559409

Abstract

As roadways become more congested, there is

greater potential for automobile accidents and incidents. To improve roadway

safety, automobile manufacturers are now designing and incorporating collision

avoidance warning systems; yet, there has been little investigation of how the

reliability of alarm signals might impact driver performance. We measured

driving and alarm reaction performances following alarms of various reliability

levels. In Experiment One, 70 participants operated a driving simulator while

being presented console emitted collision alarms that were 50%, 75%, or 100%

reliable. In Experiment Two, the same participants were presented spatially

generated collision alarms of the same reliability levels. The results were

similar in both experiments: alarm and automobile swerving reactions were

significantly better when alarms were more reliable; however, drivers still

failed to avoid collisions following reliable alarms. These results emphasize

that alarm designers should maximize alarm reliability while minimizing alarm

invasiveness.

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