Citation

Sivak M, Olson PL. Transp. Res. Rec. 1985; 1027: 53-57.

Copyright

(Copyright © 1985, Transportation Research Board, National Research Council, National Academy of Sciences USA, Publisher SAGE Publishing)

DOI

unavailable

PMID

unavailable

Abstract

Presented in this paper are optimal and minimal sign luminance recommendations based on a review of available applied research. Optimal recommendations are based largely on peak luminance-legibility relationships. In the absence of other criteria, minimal recommendations are based on performance levels of 6 m/cm (20/23) for younger persons and 4.8 m/cm (20/29) for older persons. By using a computer sign legibility model, calculations were then made to determine the photometric characteristics of signing material required to obtain the values indicated.

Record URL:
http://onlinepubs.trb.org/Onlinepubs/trr/1985/1027/1027-011.pdf

Language: en

Keywords

HIGHWAY SIGNS, SIGNALS AND MARKINGS; PHOTOMETRY; TRANSPORTATION - Operations Research