Rapid Comprehension of Verbal and Symbolic Traffic Sign Messages

Jerry G. Ells · R E Dewar

114 citations0/0 files storedHuman Factors The Journal of the Human Factors and Ergonomics Society

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Safety Warnings and Signage Traffic and Road Safety Visual and Cognitive Learning Processes

Abstract

A “same”-“different” reaction time procedure was used in two experiments to measure the times required to comprehend the meanings of projected slides of traffic signs. The results indicated that signs with symbolic messages could be understood more quickly than those with verbal messages. Visually degrading the signs resulted in a greater decrement in performance for verbal than for symbolic signs. Correlational analyses demonstrated reaction time to correlate significantly with a previously obtained measure of sign legibility taken from a moving motor vehicle on a roadway. The utility of reaction time as an index of traffic sign adequacy is discussed along with some possible practical implications of the research.

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2006How does our perception of risk influence decision-making? Implications for the design of risk information 2002Role of drivers’ personal characteristics in understanding traffic sign symbols 1990Visibility Distance of Highway Signs among Young, Middle-Aged, and Older Observers: Icons Are Better than Text 1982Assessment of Fire-Safety Symbols 1992Testing the Effect of Road Traffic Signs′ Informational Value on Driver Behavior 2001The priming function of road signs

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