IEVref:
845-31-088
ID:
Language:
en
Status:
Standard
Term:
access zone luminance
Synonym1:
Synonym2:
Synonym3:
Symbol:
Definition:
average of the luminances contained in a conical part of the field of vision, subtending an angle of 20° at the eye of the approaching driver and centred on a point at a height of one quarter of the height of the tunnel mouth
Publication
date
:
2020-12
Source
Replaces:
Internal notes:
CO remarks:
TC/SC remarks:
VT remarks:
Domain1:
Domain2:
Domain3:
Domain4:
Domain5:
average of the luminances contained in a conical part of the field of vision, subtending an angle of 20° at the eye of the approaching driver and centred on a point at a height of one quarter of the height of the tunnel mouth