cie

17-31-089

threshold zone luminance

Lth

average road surface luminance at a specific location in the threshold zone

Note 1 to entry: The threshold zone luminance is expressed in candela per square metre (cd·m−2).

Note 2 to entry: This entry was numbered 17-1315 in CIE S 017:2011.

Publication date: 2020-12
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