UFC 3-530-01
22 August 2006
VEHICLE TRAFFIC AREAS
Driveways
A
Fully shielded or Full cut-
off luminaires control glare
and reduce light pollution
and trespass.
Luminaire serves to
identify driveway location
and pedestrians crossing
the driveway.
EQUIPMENT RECOMMENDATIONS:
LUMINAIRE
LAMP
CONTROLS
Pole mounted full cut-off roadway
Metal halide, HPS, or
Control with timer or
A
luminaire.
induction lamp.
photocell.
CRITICAL DESIGN ISSUES:
Direct Glare: Full cut-off luminaires conceal the light source and minimize
the direct glare from the luminaire. Because the eye adjusts to the
brightest source in the field of view, eliminating glare is the highest priority
in designing for nighttime driving.
Light Pollution / Trespass: Fully shielded or full cut-off luminaires prevent
any direct light from leaving the luminaire above horizontal. This direct
light is the largest contributor to light pollution and light trespass.
Modeling of Faces or Objects: Luminaires need to provide adequate
vertical illuminance to light people and their faces. Provide vertical light on
pedestrians crossing the street by locating the pole ahead of the cross
walk.
Peripheral Detection: Detecting hazards while driving relies heavily on
peripheral vision. Research shows that peripheral vision and detection
are enhanced under white light. White light (as opposed to more orange
light produced by high-pressure sodium) renders objects sharper and
provides excellent peripheral detection compared to high-pressure
sodium.
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