TERMIUM Plus®

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COEFFICIENT RETROREFLECTED LUMINANCE [1 record]

Filter results by subject field Alphabetical list of terms

Filter results by subject field

Alphabetical list of terms

Record 1 2012-11-30

English

Subject field(s)
  • Highway and Street Lighting
DEF

The ratio of the luminance of a field and the illuminance of a plane perpendicular to the illumination direction at that field, for observation and illumination directions close to each other and both forming grazing angles with the road surface.

OBS

coefficient of retroreflected luminance: term and definition proposed by the World Road Association.

French

Domaine(s)
  • Éclairage des voies de circulation
DEF

Rapport de la luminance d'un champ et de l'éclairement d'un plan perpendiculaire à la direction d'éclairage, pour des directions d'observation et d'éclairage proches l'une de l'autre et formant un angle rasant avec la surface de la chaussée.

OBS

coefficient de luminance rétroréfléchie : terme et définition proposés par l'Association mondiale de la route.

Spanish

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