A.
Purpose and intent. The purpose of this article to minimize "light
trespass" or "obtrusive light," or more specifically to regulate and
reduce the nuisance caused by unnecessary intensity of artificial
illumination of property and buildings, to mitigate the impact on
ecosystems, to promote the safety and welfare of the citizens by restricting
glare producing sources of light and generally establish proper levels
of lighting.
B.
Scope.
(1)
The regulations in this article shall apply to all luminaries installed, erected or maintained in all districts except on parcels that contain a single-family or two-family dwelling unit, provided that the glare regulations set forth in § 245-143A do apply on single-family or two-family parcels where a luminary is not a fully shielded or full cut-off fixture and one or more neighboring parcels are affected by glare. The regulations apply in common areas of developments containing more than one main use on a lot, including condominiums regardless of the number of units per building. Examples of common areas include, but are not limited to, pathways, clubhouses, shared driveways, parking lots, and play areas.
(2)
New uses, buildings, and additions. All new land uses, developments,
buildings, structures, or building additions of 25% or more in terms
of gross floor area, either with a single addition or cumulative additions,
subsequent to the effective date of this article shall meet the requirements
of this section for the entire property. This provision includes additions
of any size that increase the number of parking spaces by 25%. For
building additions less than 25%, the applicant shall meet the provisions
of this section for all new outdoor lighting installed.
(3)
Change of use. Any change of use to an existing building or
structure, except in the case of a single tenant in a multitenant
building, shall meet the requirements of this section for the entire
property to the greatest extent possible as determined by the Zoning
Administrator.
(4)
These regulations do not apply to the public right-of-way and
shall not conflict with Village streetlights. The regulations do not
apply to lighting necessary for emergency equipment or work conducted
in the interest of law enforcement, or for the safety, health, or
welfare of the community.
The following words, terms and phrases, when used in this section,
shall have the meanings ascribed to them in this subsection, except
where the context clearly indicates a different meaning:
The area of a parcel being developed for a development project
including the open space required by the zoning district.
Lighting shall be classified in one of the following categories:
Class 1 "functional" lighting. All outdoor lighting used for,
but not limited to, outdoor sales or eating areas, assembly, advertising
and other signs, recreational facilities and other similar applications
where color rendition is important to preserve the effectiveness of
the activity.
Class 2 "safety" lighting. All outdoor lighting used for, but
not limited to, illumination for walkways, roadways, equipment yards,
parking lots and outdoor security where general illumination for safety
or security of the grounds is the primary concern.
Class 3 "decorative" lighting. Any outdoor lighting used for
decorative effects including, but not limited to, architectural illumination,
flag and monument lighting, and illumination of trees, bushes, etc.
Multiclass lighting. Any outdoor lighting used for more than
one purpose, such as security and decoration, such that its use falls
under the definition of two or more classes as defined for Class 1,
2 and 3 lighting. All multiclass lighting shall comply with the most
restrictive class of which it falls under.
Any residential, commercial, industrial or mixed use subdivision
plan or development plan that is submitted to the Village for approval.
Illumination resulting from light emitted directly from a
lamp or luminaire, not light diffused through translucent signs or
reflected from other surfaces such as the ground or building faces.
A unit of light expressed in lumens per square foot.
An outdoor light fixture shielded in such a manner that 100%
of all light emitted by the fixture, either directly from the lamp
or indirectly from the fixture, is projected below the horizontal
plane as determined by photometric test or certified by the manufacturer.
Intense light from an illumination source that may result
in visual impairment or discomfort to the average person. Lighting
installed in conformance with this article should not be considered
to cause glare unless unforeseen circumstances or conditions are discovered
during or after installation.
The height of a light structure shall be the vertical distance
between the uppermost extremity of any light structure, pole or supporting
member and the grade level.
A single artificial source of luminescence.
The unit used to measure the actual amount of light that
is produced by a lamp. For all lamp types and sources, the initial
output, as defined by the lamp or source manufacturer, is the value
to be considered.
The complete lighting unit consisting of a lamp or lamps
together with the parts designed to distribute the light, to position
and protect the lamps and to connect the lamps to the power supply.
For the purposes of this article, unless otherwise stated,
illumination levels shall be measured at a point three feet above
grade with the measuring device aimed directly at the light source(s)
being measured. Measurements shall be taken using baffles or shields
to separate the sources(s) under review from other existing or ambient
sources such as streetlights, in a manner that eliminates to the greatest
extent possible other light sources.
Opaque means that material must not transmit light from an
internal illumination source.
Outdoor electrically powered illuminating devices, outdoor
lighting or reflective surfaces, lamps and similar devices, either
permanently installed or portable, which are used for illumination
or advertisement. Such devices shall include, but are not limited
to, linear strip lights, search lights, spotlights and flood lights
for buildings and structures; recreational areas; parking lot areas;
landscape and architectural lighting; signs (advertising or other);
or product display areas.
The maximum total amount of light, measured in lumens, from
all outdoor light fixtures. For all lamp types and sources, the initial
output, as defined by the lamp or source manufacturer, is the value
to be considered.
An outdoor light fixture shielded in such a manner that more
than zero but less than 10% of the light emitted directly from the
lamp or indirectly from the fixture is projected at angles above the
horizontal, as determined by photometric test or certified by the
manufacturer.
Lighting that does not conform to the provisions of this article and which will not be used for more than one thirty-day period within a calendar year, with one thirty-day extension. Temporary lighting is intended for uses that by their nature are of limited duration; e.g., civic events, or construction projects, not including exempt lighting listed in § 245-151. Temporary lighting requires approval by the Zoning Administrator.
The average illuminance shall not exceed minimum values by
more than the product of the minimum value and the specified ratio.
The relinquishment of a property, or the cessation of a use
or activity by the owner or tenant for a period of one year, excluding
temporary or short term interruptions for the purpose of remodeling,
maintaining, or otherwise improving or rearranging a facility. A use
shall be deemed abandoned when such use is suspended as evidenced
by the cessation of activities or conditions that constitute the principle
use of the property.
The unit used to measure the electrical power consumption
of a lamp, or when describing a fixture, the fixture input wattage
before ballast losses.
A.
Zone 1: Principal nonresidential uses in or adjacent to residential
uses.
B.
Zone 2: Business uses.
C.
Zone 3: Institutional and industrial uses.
*Note: Planned community development properties must use the
criteria for the use on the parcel, when not adjacent to residential
use. If adjacent to a residential use, Zone 1 shall be used.
All nonexempt outdoor lighting fixtures shall have full shielding
to prevent direct view of the lamp or reflector as viewed from anywhere
along the property line or above the horizontal, except for the following:
A.
Class 1 and Class 3 lighting fixtures with an initial lamp output
at or below 500 lumens per fixture may be unshielded provided that
the fixture is screened from public view.
B.
Class 1 and Class 3 lighting fixtures with an initial lamp output
at or below 1,000 lumens per fixture may be partially shielded provided
that the fixture is screened from public view.
Total outdoor lighting lumen output shall not exceed the limits
in Table 245-137, given in lumens per acre. The following shall be
included in this limit:
A.
Indoor lighting, located within 12 feet of window glass, that is
used for or contributes to illumination of displays, merchandise or
signage shall be included in the total outdoor light output, by including
25% of the contributing as though they produced only 1/4 of the lamp's
rated lumen output. If the indoor lighting is directed through the
window glass or otherwise used for exterior illumination, then the
full 100% of the lamp's rated lumen output shall be included.
B.
Outdoor lighting fixtures that are fully shielded and installed under
canopies, roof eaves and building overhangs are counted toward these
limits according to the following:
(1)
Outdoor light fixtures installed under canopies, building overhangs,
or roof eaves where the center of the lamp or luminaire is located
at least five feet but less than 10 feet from the nearest edge of
the canopy or overhang are to be included in the total outdoor light
output, by including 25% of the contributing lamp's rated lumen output;
(2)
Outdoor light fixtures located under the canopy and 10 or more
feet from the nearest edge of a canopy, building overhang, or eave
are to be included in the total outdoor light output, by including
10% of the contributing lamp's rated lumen output;
(3)
Outdoor lighting fixtures located under the canopy and less
than five feet from the nearest edge of the canopy, building overhang,
or eave, are to be included in the total outdoor light input by including
100% of the contributing lamp's rated lumen output.
|
Table 245-137 Total Outdoor Light Output Standards
| |||
|---|---|---|---|
|
Maximum Lumens Per Acre (Initial Lamp Lumens)
|
Lighting Zone
| ||
|
Zone 3
|
Zone 2
|
Zone 1
| |
|
Total (fully shielded plus unshielded)
|
125,000
|
100,000
|
50,000
|
|
Unshielded only (Class 1 and 3)
|
10,000
|
10,000
|
4,000
|
A.
All classes of lighting. Luminaries attached to a building shall
not exceed 16 feet in height from grade.
B.
Class 1 lighting.
(1)
The maximum illumination of any interior or exterior illuminated
sign, including subdivision signs, shall not exceed 15 footcandles
when measured with a light meter held perpendicular to the sign at
a distance of 12 inches. All signage existing signage on the date
of adoption of this article is grandfathered, provided that, if the
lighting elements must be replaced, they shall be replaced with conforming
elements.
(2)
The maximum illumination of any vertical building surface shall
not exceed 10 footcandles.
C.
Class 2 lighting.
(1)
Parking lot lighting shall maintain a two-footcandle average
and a uniformity ratio of 12:1.
(2)
The height of parking lot light structures may by right be,
but shall not exceed, the greater of 16 feet or 75% of the height
of the principal structure; provided in no case shall the height of
any parking lot light structure exceed 20 feet or shall any structure
located within 100 feet of a residential use or an undeveloped residentially
zoned property exceed a height of 16 feet.
(3)
Light structures intended for pedestrian traffic shall not exceed
10 feet in height and have average illumination levels between 0.5
and one footcandle.
(4)
Bollards shall not exceed 42 inches in height and 8,500 lumens
per fixture with 0% of lumen output at or above the horizontal plane.
(5)
Security lighting shall not exceed 25% of the total allowed
lumen output.
(6)
Lighting intended for exit discharge shall not exceed 1.5 footcandles
at the floor or grade level.
D.
Class 3 lighting.
(1)
Only the United States flag, the flag of another country, and
state flags are permitted to be illuminated from dusk to dawn. Other
flags may be illuminated if they are located on the same pole or part
of a group or array that includes the United States, a country, or
a state flag. Flag lighting sources shall not exceed 1,600 lumens
for a fifteen-foot flagpole, 7,000 lumens for a twenty-foot flagpole,
and 11,000 lumens for a twenty-five-foot flagpole, and shall be shielded
to prevent viewing the fixture opening from public areas and neighboring
lots, and designed to apply at least 80% of the fixture output onto
the area of the flag.
(2)
Lighting of aesthetic features, including but not limited to
hardscape and landscape features, fountains, displays, and statuary,
shall not exceed 500 lumens per fixture.
(3)
The maximum illumination of any vertical building surface or
facade shall not exceed 10 footcandles.
Unless otherwise approved in accordance with this section, all
luminaries shall be of a full cutoff design and directed so as to
confine the area of light dispersion to the property and/or building
area that it is intended to illuminate. More specifically, all lighting
installations shall conform to the following standards:
A.
All luminaries except street lights shall be located, aimed or shielded
so as to prevent stray light trespassing across property boundaries,
measurable at or below 0.05 footcandle while holding meter perpendicular
to and aimed directly at the offending source(s).
B.
Where adjacent to nonresidential property, the maximum permitted
illumination level located 10 feet within that adjacent property shall
be no greater than 0.1 horizontal footcandles.
C.
Where adjacent to residential property, the maximum permitted illumination
level on a residentially zoned parcel located immediately within that
adjacent property shall be no greater than 0.01 horizontal footcandles.
D.
Ground-mounted lighting. In order to fully hide the light fixture
from public view and to prevent glare and brightness from normal public
view, all ground-mounted luminaries designed or intended for purposes
of illuminating, signs, flagpoles or other onsite amenities shall
be completely screened, at the time of installation, with nonseasonal
vegetative cover or other materials as approved by the Plan Commission.
Additional louvers or shielding may be required to prevent source
brightness and glare from normal public view.
A.
All outdoor luminaries shall be turned off from close of business
to sunrise with the following exceptions:
(1)
Business, industrial and institutional uses that remain open
after 11:00 p.m. as permitted by zoning regulations or conditional
use requirements shall be allowed to keep their approved outdoor lighting
on for the period of time they remain open and up to one-half hour
after closing.
(2)
Approved business, industrial, and institutional security lighting
shall be allowed in accordance with the provisions of this Code.
(3)
All illuminated on-premises and off-premises signs for advertising
purposes shall be turned off from close of business to sunrise.
B.
Recreational facilities shall be allowed to keep their approved outdoor
lighting on for the period of time the recreational use continues.
In addition to the requirements of this article, the following
uses shall have additional restrictions.
A.
Illuminated outdoor recreation facilities:
(1)
Shall be subject to a conditional use grant.
(2)
Lighting for outdoor recreational facilities including athletic
fields, courts, or tracks shall be exempt from the lumens per acre
limits of this section.
(3)
All lighting installations shall be designed to achieve no greater
than the minimal illuminance levels for the activity as recommended
by the Illuminating Engineering Society of North America (IESNA RP-6).
(4)
Lighting trespass requirements are maintained.
B.
Auto display lots.
(1)
Lighting for display lots shall be exempt from the lumens per
parcel limits of this section.
(2)
Total output. The total light output used for illuminating display
lots shall not exceed 20 footcandles.
(3)
Every display lot lighting system and design shall be certified
by a registered engineer as conforming to all restrictions in this
section.
C.
Service station canopies.
(1)
All luminaries mounted on the under surface of service station
canopies shall be fully shielded, recessed, and utilize flat glass
or flat plastic (acrylic or polycarbonate) covers, with no direct
illumination permitted at or above the horizontal plane.
(2)
Total output. The total light output used for illuminating service
station canopies, defined as the sum of all under-canopy initial lamp
outputs in lumens, shall not exceed 20 footcandles. All lighting mounted
under the canopy, including but not limited to luminaries mounted
on the lower surface of the canopy and auxiliary lighting within signage
or panels over the pumps, is to be included toward the total.
(3)
No lighting shall be placed on the facade or roof of the canopy.
D.
Street lighting installed by private parties (developers and land
owners). Where private street lighting is installed, the luminaries
shall be fully shielded and shall not exceed 2,700 lumens per fixture.
Where private parties install street lighting on streets that are
or will become public streets, the luminaries shall be approved by
both the Plan Commission and the Public Works and Utilities Committee.
A.
Prior to the erection, installation or placement of any exterior
artificial light source, an application for permit shall be filed
with the Zoning Administrator. All applications shall include a scaled
plan depicting:
(1)
The proposed number, types, intensity (in wattage and lumens),
class, and specific locations of fixtures, along with photometric
drawings;
(2)
The manufacture specification sheets, manufacturer's fixture
cutsheets, manufacturer's ISO footcandle curve reference plot, or
other manufacturer provided information for all proposed lighting
fixtures.
(3)
If building elevations are proposed for illumination, drawings
shall be provided for all relevant building elevations showing the
fixtures, the portions of the elevations to be illuminated, the illuminance
levels of the elevations, and the aiming point for any remote light
fixture.
(4)
If needed, the Zoning Administrator may request additional information
following the initial lighting plan submittal, such as:
(a)
A brief written narrative, with accompanying plan or sketch,
which demonstrates the objectives of the lighting.
(b)
Photometric data, Color Rendering Index (CRI) of all lamps (bulbs),
and other descriptive information on the fixtures, and if applicable
or required, designation as Illuminating Engineering Society of North
America (IESNA) "cutoff" fixtures.
(c)
Computer-generated photometric grid showing footcandle readings
every 10 feet within the property or site, and 10 feet beyond the
property lines at a scale specified by the Administrator. ISO-footcandle
contour line style plans are also acceptable.
(d)
Landscaping information that indicates mature tree size, shrubbery
and other vegetation in order to evaluate the long-term and seasonal
effectiveness of lighting or screening of lighting.
(5)
When not submitted as part of a site plan requiring Plan Commission review, staff, in their judgment, may defer the plan to the Plan Commission for approval. The plans submitted in compliance hereto shall not necessarily be deemed sufficient to fulfill the technical requirements of Chapter 98, but are in addition thereto.
B.
Any permit issued under the provisions of this section shall expire
and be null and void if not implemented within six months of the date
of approval. Whenever a permit is granted in conjunction with a site
plan approval, such permit shall be valid for the same time period
as the related site plan.
A.
With the exception of street lights, for exterior lighting installations
and fixtures adjacent to existing, zoned, or platted single- and two-family
residential areas, the following requirements shall apply:
(1)
Lighting fixtures shall be no higher than 15 feet above grade.
(2)
Lighting fixtures shall be aimed and shielded in a manner that
shall not direct illumination on adjacent residential zones. Fixtures
should be of a type or adequately shielded so as to prevent glare
from normal viewing angles.
(3)
Where feasible, additional landscaping may be required by the
Zoning Administrator or Plan Commission to provide light screening
between business zones and residential zones to help prevent light
trespass. Where landscaping is used for light screening, the Village
shall take into consideration the applicable landscaping standards
found elsewhere in these regulations, the creation of excessive shadows
or dark spaces, and views into and out of a site.
B.
The height restrictions of this section shall not apply to lighting used to illuminate outdoor performance areas, sport and recreation facilities, and playfields, except where such lighting fixtures are located within 50 feet of the property line of a single- or two-family residential use or vacant lot. Lighting of outdoor performance areas, sport and recreation facilities, and playfields shall also meet the standards in § 245-146.
A.
Open-air parking lots shall comply with the standards of this section
in addition to the other requirements of this article.
B.
For multilevel parking facilities, the roof level shall be considered
an open-air parking lot.
C.
Open-air parking lot lighting shall be designed to provide adequate
vision, comfort and safety.
D.
Open-air parking lot lighting shall be designed to provide for uniform
lighting throughout the facility with no dark patches or pockets.
E.
Open-air parking lot lighting shall be designed to provide a minimum
value of lighting necessary for the safety and identification of features.
F.
Open-air parking lot lighting shall not cause direct illumination
on adjacent and nearby properties or streets. Fixtures should be of
a type or adequately shielded so as to prevent glare from normal viewing
angles.
G.
In order to direct light downward and minimize the amount of light spilled into the dark night sky, all lighting fixtures serving open-air parking lots, except as allowed in Subsection H of this section, shall be full cutoff fixtures as defined by the Illuminating Engineering Society of North America (IESNA).
H.
If the design of an area suggests the use of parking lot lighting
fixtures of a particular "period" or architectural style, the Village
may permit alternatives or supplements to the lighting described above.
In order to minimize the amount of light spilled into the dark night
sky, the following shall apply:
I.
The following mounting height regulations shall apply to open-air
parking lot lighting fixtures. Mounting height shall be measured as
the vertical distance between the parking surface and the bottom of
the lighting fixture.
(1)
The maximum permissible mounting height of open-air parking
lot lighting fixtures within 50 feet of low and low-moderate density
residential zones (densities less than or equal to R-6) shall be 15
feet.
(2)
The maximum permissible mounting height for open-air parking
lot lighting fixtures, on top levels of structures, shall be 15 feet.
J.
The Plan Commission may allow increases from basic to enhanced security
lighting levels (see table below), when personal security is an issue,
such as where the parking facility is used during all hours of the
day and night, where special security needs exist, or where vandalism
or crime are possible. The Plan Commission may consider specific site
characteristics, level of vehicle and pedestrian conflict, special
security needs, and history or likelihood of crimes in making its
determination.
K.
The table below establishes open-air parking lot lighting standards.
|
Basic1
|
Enhanced Security2
| |
|---|---|---|
|
Minimum footcandles on pavement3
|
0.2 fc
|
0.5 fc
|
|
Maximum footcandles on pavement
|
4.0 fc
|
7.5 fc
|
|
Uniform ratio maximum/minimum4
|
20:1
|
15:1
|
|
Maximum footcandles at five feet above pavement5
|
0.1 fc
|
0.25 fc
|
|
NOTES:
| |
|
fc = footcandle
| |
|
1
|
For typical conditions. During periods of nonuse, the illuminance
of certain parking facilities should be turned off or reduced to conserve
energy. If reduced lighting is to be used only for the purpose of
property security, it is desirable that the minimum (low point) value
not be less than 0.1 footcandle. Reductions should not be applied
to facilities subject to intermittent night use, such as at apartments,
hospitals and transportation terminals.
|
|
2
|
The Plan Commission may allow increases from basic to enhanced
security lighting levels, when personal security is an issue, such
as where the parking facility is used during all hours of the day
and night, where special security needs exist, or where vandalism
or crime are possible. The Plan Commission may consider specific site
characteristics, level of vehicle and pedestrian conflict, special
security needs, and history or likelihood of crimes in making its
determination.
|
|
3
|
Measured on the parking surface, without any shadowing effect
from parked vehicles or trees at points of measurement.
|
|
4
|
The highest horizontal illuminance point at grade, divided by
the lowest horizontal illuminance point or area should not be greater
than the values shown.
|
|
5
|
Measured at 1.5 meters (five feet) above parking surface at
the point of the lowest horizontal illuminance, excluding facing outward
along boundaries.
|
A.
Lighting of such areas shall not be used to attract attention to
the business. Signs allowed under the appropriate section of these
regulations shall be used for that purpose.
B.
Lighting levels shall be adequate to facilitate the activities taking
place in such locations.
C.
In order to minimize the extent of direct glare, light fixtures mounted
on canopies shall be recessed so that the lens cover is recessed or
flush with the bottom surface (ceiling) of the canopy or shielded
by the fixture or the edge of the canopy so that light is restrained
to 85° or less from vertical.
D.
As an alternative (or supplement) to recessed ceiling lights, indirect
lighting may be used where light is beamed upward and then reflected
down from the underside of the canopy. When this method is used, light
fixtures must be shielded so that direct illumination is focused exclusively
on the underside of the canopy.
E.
Lights shall not be mounted on the top or sides (fasciae) of the
canopy. The sides (fasciae of the canopy) shall not be illuminated
in a manner other than that prescribed under the section of these
regulations regulating signs.
F.
Areas around service station pump islands shall be illuminated so
that the minimum horizontal illuminance at grade level is at least
1.0 footcandle and no more than 5.0 footcandles. The uniformity ratio
(average illumination to minimum illumination) shall be no greater
than 4:1. At the discretion of the Plan Commission, increased lighting
levels may be permitted for enhanced security purposes only.
A.
Lighting levels for outdoor performance areas, sport and recreation
facilities, and playfields shall not exceed by more than 5% the Illuminating
Engineering Society of North America (IESNA) published standards for
the proposed activity.
B.
Where playing fields or other special activity areas are to be illuminated,
lighting fixtures shall be mounted, aimed and shielded so that their
beams fall within the primary playing area and immediate surroundings,
and so that no direct illumination is directed off the site.
C.
The main lighting shall be turned off as soon as possible following
the end of the event. The main lighting shall not remain on longer
than 30 minutes following the end of the event. Where feasible, a
low-level lighting system shall be used to facilitate patrons leaving
the facility, cleanup, nighttime maintenance and other closing activities.
The low-level lighting system shall provide an average horizontal
illumination level at grade of no more than 3.0 footcandles, with
a uniformity ratio (average illumination to minimum illumination)
not exceeding 4:1.
A.
Security lighting is defined as "lighting designed and used to discourage
crime and undesirable activity."
B.
Security lighting should use the lowest possible illumination to
effectively allow surveillance.
C.
The use of sensor technologies, timers or other means to activate
lighting during times when it will be needed may be required by the
Plan Commission to conserve energy, provide safety, and promote compatibility
between different land uses.
D.
In order to direct light downward and minimize the amount of light
spill into the dark night sky, all security lighting fixtures shall
be full cutoff fixtures as defined by the Illuminating Engineering
Society of North America (IESNA).
E.
Security lighting shall be shielded and aimed so that illumination
is directed to the designated areas.
F.
Where security lighting is proposed, the table below shall govern
the range of permissible light levels for the listed applications.
Where a proposed security lighting application is not identified in
the table below, the table shall be used a guide for establishing
the range of permissible light levels.
|
Security Lighting Application on Ground
|
Average Horizontal Illumination Level
|
|---|---|
|
Large open areas
|
0.5 to 2.0 fc1
|
|
Buildings
|
0.5 to 2.0 fc1
|
|
Perimeter fence
|
0.5 fc2
|
|
Entrances
|
10 fc3
|
|
Gatehouses
|
30 fc4
|
|
Pedestrian pathways and access routes
|
4 to 6 fc
|
|
NOTES:
| |
|
fc = footcandle
| |
|
1
|
The greater the brightness of the surrounding area, the higher
the illuminance required to balance the brightness
|
|
2
|
Illuminance on the ground
|
|
3
|
Illuminance on the ground in the inspection area
|
|
4
|
Illuminance on the work-plane in the gatehouse. This lighting
must be dimmable to low levels at night so the guard can see outside
the gatehouse.
|
A.
Fixtures used to accent architectural features, materials, colors,
style of buildings, or art shall be located, aimed and shielded so
that light is directed only on those features. Such fixtures shall
be aimed or shielded so as to minimize light spill into the dark night
sky. The Plan Commission may allow exceptions to this provision if
minimal light escapes into the dark night sky or onto adjacent properties.
B.
Lighting fixtures shall not generate excessive light levels, cause
glare, or direct light beyond the facade onto neighboring property,
streets or the night sky.
C.
The maximum illumination of any vertical surface or angular roof
surface in dark surroundings shall not exceed three footcandles.
D.
The maximum illumination of any vertical surface or angular roof
surface in light surroundings shall not exceed five footcandles.
E.
Flags of the United States, another country, or any state may be
illuminated from below provided such lighting is focused primarily
on the individual flag or flags so as to limit light trespass and
spill into the dark night sky.
Illumination of landscaping shall utilize diffused or muted
lighting, avoid glare, and minimize light trespass and escape beyond
landscaping onto neighboring property, streets, or the night sky.
The following types of lighting shall be prohibited except as
otherwise approved by the Plan Commission:
A.
Swivel-mounted luminaries.
B.
Festoon lighting, "string" lighting or any light source erected in
such a manner as to be subject to noticeable periodic movement as
a result of wind pressure or atmospheric conditions.
C.
Any artificial light source that creates glare within the normal
range of vision from any public walk or thoroughfare under normal
weather conditions.
D.
Display of intermittent lights or flashing, blinking, moving lights
except as follows:
E.
Laser source light. The use of laser source light or any similar
high intensity light is prohibited.
F.
Searchlights.
G.
Light intended to illuminate naturally occurring environmental features
including but not limited to wetlands, rivers, lakes and dedicated
open spaces shall be prohibited except as approved as part of a conditional
use grant or public lighting project approved by the Village Board.
A.
Exceptions. The Plan Commission may approve exceptions to the provisions
of this subsection where, in its opinion, strict compliance to the
regulations is impractical and the alternative would further the public
interest.
B.
Exemptions. The following types of lighting shall be exempt from
the outdoor lighting regulations:
