Optimum display factors for light emitting variable message road signs.

Author(s)
Kerr, J.S. Snelgar, S. Jordan, T.R. et.al.
Year
Abstract

Factors affecting the perceptibility of light emitting variable message signs were investigated. The factors were contrast ratio of the sign, emitter size, spacing between the emitters, letter case, and age of the observer. Optimum levels for sign factors are suggested.

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Publication

Library number
B 28474 (In: B 28451 [electronic version only]) /73 /83 / IRRD 821376
Source

In: Vision in vehicles II : proceedings of the Second International Conference on Vision in Vehicles, Nottingham, U.K., 14-17 September, 1987, p. 277-288, 5 ref.

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This publication is one of our other publications, and part of our extensive collection of road safety literature, that also includes the SWOV publications.