Luminance and contrast requirements for legibility and visibility of highway signs. Paper presented at the 54th Annual Meeting of the Transportation Research Board TRB, Washington, January 1975.

Author(s)
Forbes, T.W. Saari, B.B. Greenwood, W.H. Goldblatt, J.G. & Hill, T.E.
Year
Abstract

The study reported took place in 2 parts: laboratory tests and outdoor observations. It is suggested that glance legibility was measured by the laboratory procedure and that it requires higher luminance. See also PB- 6018.

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Publication

Library number
B 12146 (In: B 10004 S) /73/83/ 252531
Source

In: Transportation Research Record TRR No. 562, 1976, p. 59-72, 9 graph., 2 tab., 17 ref.

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