Dobbins JLUS IMP Public Draft Light Pollution Study | Page 248

MODEL LIGHTING ORDINANCE - USER’S GUIDE
II. LIGHTING ZONES (cont.) - Ordinance Text
II. LIGHTING ZONES (cont.) - User’s Guide
However, if an adjacent use could be adversely impacted by allowable
lighting, the adopting authority may require that a particular site meet
the requirements for a lower lighting zone. For example, the authority
could specify Lighting Zone 1 or 2 requirements if a commercial
development were adjacent to a residence, hospital or open space, or
to any land assigned to a lower zone.
Lighting zones are best implemented as an overlay to the established
zoning especially in communities where a variety of zone districts
exists within a defined area or along an arterial street. Where zone
districts are cohesive, it may be possible to assign lighting zones to
established land use zoning. It is recommended that the lighting zone
includes churches, schools, parks, and other uses embedded within
residential communities.
Zone
LZ-0
LZ-1
Recommended Uses or Areas
Zoning Considerations
Lighting Zone 0 should be applied to areas in
which permanent lighting is not expected and
when used, is limited in the amount of lighting Recommended default zone
and the period of operation. LZ-0 typically
for wilderness areas, parks
includes undeveloped areas of open space,
and preserves, and undevel-
wilderness parks and preserves, areas near
oped rural areas.
astronomical observatories, or any other area
where the protection of a dark environment is Includes protected wildlife
critical. Special review should be required for
areas and corridors.
any permanent lighting in this zone. Some
rural communities may choose to adopt LZ-0
for residential areas.
Lighting Zone 1 pertains to areas that desire
low ambient lighting levels. These typically
include single and two family residential
communities, rural town centers, business
parks, and other commercial or industrial/
storage areas typically with limited nighttime
activity. May also include the developed
areas in parks and other natural settings.
Page B-6
USER’S GUIDE - Page 6
MODEL LIGHTING ORDINANCE - TEXT
Recommended default zone
for rural and low density
residential areas.
Includes residential single or
two family; agricultural zone
districts; rural residential
zone districts; business parks;
open space include preserves
in developed areas.
LZ1: Low ambient lighting
Areas where lighting might adversely affect flora and fauna or
disturb the character of the area. The vision of human residents and
users is adapted to low light levels. Lighting may be used for safety
and convenience but it is not necessarily uniform or continuous.
After curfew, most lighting should be extinguished or reduced as
activity levels decline.
LZ2: Moderate ambient lighting
Areas of human activity where the vision of human residents and
users is adapted to moderate light levels. Lighting may typically be
used for safety and convenience but it is not necessarily uniform or
continuous. After curfew, lighting may be extinguished or reduced
as activity levels decline.
LZ3: Moderately high ambient lighting
Areas of human activity where the vision of human residents and
users is adapted to moderately high light levels. Lighting is generally
desired for safety, security and/or convenience and it is often uniform
and/or continuous. After curfew, lighting may be extinguished or
reduced in most areas as activity levels decline.
LZ4: High ambient lighting
Areas of human activity where the vision of human residents and
users is adapted to high light levels. Lighting is generally considered
necessary for safety, security and/or convenience and it is mostly
uniform and/or continuous. After curfew, lighting may be extinguished
or reduced in some areas as activity levels decline.
Appendix
ORDINANCE
TEXT B: - Model
Page 6 Lighting Ordinance