Citation

Dewar RE, Ells JG, Mundy G. Hum. Factors 1976; 18(4): 381-391.

Copyright

(Copyright © 1976, Human Factors and Ergonomics Society, Publisher SAGE Publishing)

DOI

10.1177/001872087601800407

PMID

unavailable

Abstract

Verbal reaction times to identify and to classify 20 traffic sign messages were measured under three conditions-sign alone, sign plus visual loading task, and sign plus visual loading task plus visual distraction. Similar trends were found in the three experiments: reaction times were smaller for the classification task than for the identification task, smaller for warning than for regulatory signs, and smaller for verbal than for symbolic messages. Comparison of these reaction time data with on-the-road measures of legibility distance revealed significant correlations. The correlational data add credibility to laboratory measures of reaction times as valid indices of traffic sign perception.


Keywords: Driver distraction;

Language: en