Dobbins JLUS IMP Public Draft Light Pollution Study | Page 283

MODEL LIGHTING ORDINANCE - USER’S GUIDE
MODEL LIGHTING ORDINANCE - TEXT
X. DEFINITIONS - Ordinance Text
Sky Glow
Temporary lighting
Third Party
Time Switch
Translucent
Unshielded
Luminaire
Uplight
Vertical
Illuminance
USER’S GUIDE - Page 41
Appendix B: Model Lighting Ordianance
The brightening of the nighttime sky that
results from scattering and reflection of artifi-
cial light by moisture and dust particles in the
atmosphere. Skyglow is caused by light
directed or reflected upwards or sideways
and reduces one's ability to view the night sky.
Lighting installed and operated for periods not
to exceed 60 days, completely removed and
not operated again for at least 30 days.
A party contracted to provide lighting,
such as a utility company.
An automatic lighting control device that
switches lights according to time of day.
Allowing light to pass through, diffusing it so
that objects beyond cannot be seen clearly
(not transparent or clear).
A luminaire capable of emitting light in any
direction including downwards.
For an exterior luminaire, flux radiated in the
hemisphere at or above the horizontal plane.
Illuminance measured or calculated in a plane
perpendicular to the site boundary or property
line.
ORDINANCE TEXT - Page 41
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