03/06
PENNSYLVANIA OUTDOOR LIGHTING COUNCIL
MODEL LIGHTING SECTION FOR
SUBDIVISION & LAND DEVELOPMENT ORDINANCES
LIGHTING
REQUIREMENTS AND DESIGN STANDARDS
A.
Purpose – To require and
set minimum standards for outdoor lighting to:
1.
Provide for and control
lighting in outdoor public places where public health, safety and welfare are
potential concerns.
2.
Protect drivers and
pedestrians from the glare of non-vehicular light sources.
3.
Protect neighbors, the
environment and the night sky from nuisance glare and light trespass from
improperly selected or poorly placed, aimed, applied, maintained or shielded
light sources.
4.
Promote energy-efficient
lighting design and operation
5.
Protect and retain the
intended visual character of the various venues of the Municipality
B.
Applicability
1.
Uses that are proposed
to operate during hours of darkness where there is public assembly and
traverse, including but not limited to the following: multi-family residential,
residential developments, commercial, industrial, recreational and
institutional uses, and sign, billboard, architectural and landscape lighting
applications.
2.
The Municipality may
require lighting be incorporated for other uses, applications and locations or
may restrict lighting in any uses or applications when health, safety and
welfare are issues.
3.
The glare-control
requirements herein contained apply to lighting in all uses, applications and
locations.
C.
Definitions
1.
Footcandle – Unit of
light density incident on a plane (assumed to be horizontal unless otherwise
specified), measurable with an illuminance meter, a.k.a. light meter.
2.
Full Cutoff – Attribute
of a lighting fixture from which no light is emitted at or above a horizontal
plane drawn through the bottom of the fixture and no more than 10% of the
lamp’s intensity is emitted at or above an angle 10º below that horizontal
plane, at all lateral angles around the fixture
3.
Fully Shielded –
Attribute of a lighting fixture provided with internal and/or external shields
and louvers to prevent brightness from lamps, reflectors, refractors and lenses
from causing glare at normal viewing angles
4.
Glare – Excessive
brightness in the field of view that is sufficiently greater than that to which
the eyes are adapted to cause loss in visual performance or annoyance, so as to
jeopardize health, safety or welfare
5.
Illuminance – Quantity
of light, measured in footcandles
6.
Light Trespass – Light
emitted by a lighting fixture or installation, which is cast beyond the boundaries
of the property on which the lighting installation is sited.
7.
Lumen – As used in the
context of this Ordinance, the light-output rating of a lamp (light bulb).
D.
Criteria
1.
Illumination Levels –
Lighting, where required by this Ordinance or otherwise required or allowed by
the Municipality, shall have illuminances, uniformities and glare control in
accordance with the current recommended practices of the Illuminating
Engineering Society of North America (IESNA) as contained in the IESNA Lighting
Handbook and applicable Recommended Practices, except as may otherwise be
required by this ordinance.
2.
Lighting Fixture Design
a.
Fixtures shall be of a
type and design appropriate to the lighting application and shall be
aesthetically acceptable to the Municipality.
b.
For the lighting of
predominantly horizontal surfaces such as, but not limited to, parking areas,
roadways, vehicular and pedestrian passage areas, merchandising and storage
areas, automotive-fuel dispensing facilities, automotive sales areas, loading
docks, cul-de-sacs, active and passive recreational areas, building entrances,
sidewalks, bicycle and pedestrian paths, and site entrances, fixtures shall be
aimed straight down and shall meet IESNA full-cutoff criteria. Fixtures, except those containing
directional lamps, with an aggregate rated lamp output not exceeding 500
lumens, e.g., the rated output of a standard non-directional 40-watt
incandescent lamp, are exempt from the requirements of this paragraph. In the case of decorative street lighting,
the Municipality may approve the use of luminaires that are fully shielded or
comply with IESNA cutoff criteria.
c.
For the lighting of
predominantly non-horizontal surfaces such as, but not limited to, facades,
landscaping, signs, billboards, fountains, displays and statuary, fixtures
shall be fully shielded and shall be installed and aimed so as to not project
their output into the windows of neighboring residences, adjacent uses, past
the object being illuminated, skyward or onto a public roadway. Fixtures, except those containing
directional lamps, with an aggregate rated lamp output not exceeding 500
lumens, e.g., the rated output of a standard non-directional 40-watt
incandescent lamp, are exempt from the requirements of this paragraph.
3.
Control of Glare
a.
All lighting shall be
aimed, located, designed, fitted and maintained so as not to present a hazard
to drivers or pedestrians by impairing their ability to safely traverse and so
as not to create a nuisance by projecting or reflecting objectionable light
onto a neighboring use or property.
b.
Directional fixtures,
e.g., floodlights and spotlights, shall be so shielded, installed and aimed
that they do not project their output into the windows of neighboring
residences, adjacent uses, past the object being illuminated, skyward or onto a
public roadway or pedestrian way.
c.
Parking facility and
vehicular and pedestrian way lighting (except for safety and security
applications and all-night business operations), for commercial, industrial and
institutional uses shall be automatically extinguished, using a programmable
controller, no later than one-half hour after the close of business or facility
operation. When safety or security
lighting is proposed for after-hours illumination, it shall not be in excess of
twenty-five (25) percent of the number of fixtures or illuminance required or
permitted for illumination during regular business hours. Alternatively, where reduced but continued
activity requires even illumination, the use of dimming circuitry to reduce
illumination levels by 50% after 11:00 p.m. or after normal business hours,
shall be permitted.
d.
Illumination for signs,
billboards, building facades and/or surrounding landscapes for decorative,
advertising or aesthetic purposes is prohibited between 11:00 p.m. and dawn,
except that such lighting situated on the premises for a commercial
establishment may remain illuminated while the establishment is actually open
for business, and until no more than one-half hour after closing. Such lighting shall be automatically
extinguished using a programmable controller.
e.
Vegetation screens shall
not be employed to serve as the primary means for controlling glare. Rather, glare control shall be achieved
primarily through the use of such means as cutoff fixtures, shields and
baffles, and appropriate application of fixture mounting height, wattage,
aiming angle and placement.
f.
The illumination
projected from any property onto a residential use shall at no time exceed 0.1
initial footcandle, measured line-of-sight from any point on the receiving
property.
g.
The illumination
projected from any property to a non-residential use at no time shall exceed
1.0 initial footcandle, measured line-of-sight from any point on the receiving
property.
h.
Externally illuminated
billboards and signs shall be lighted by fixtures mounted at the top of the
billboard or sign and aimed downward.
The fixtures shall be designed, shielded and aimed to shield the source
from off-site view and to restrict the light output onto and not beyond the
sign or billboard. At no point on the
face of the sign or billboard shall the illumination exceed 30 initial vertical
footcandles with a maximum to minimum uniformity ratio not to exceed 6:1.
i.
Only the United States
and the state flag shall be permitted to be illuminated from dusk till
dawn. All other flags shall not be
illuminated past 11:00 p.m. Flag
lighting sources shall not exceed 7,000 initial lamp lumens per flagpole. The light source shall have a beam spread no
greater than necessary to illuminate the flag and shall be fully shielded.
j.
Under-canopy lighting,
for such applications as gas/service stations, hotel/theater marquees,
fast-food/bank/drugstore drive-ups, shall be accomplished using flat-lens
full-cutoff fixtures aimed straight down and shielded in such a manner that the
lowest opaque edge of the fixture shall be below the light source at all
lateral angles. The illumination in the
area directly below the canopy shall not exceed 20 average footcandles and the
maximum shall not exceed 30 footcandles.
k.
The use of white strobe
lighting for tall structures such as smokestacks, chimneys and
radio/communications/television towers is prohibited during hours of darkness,
except as specifically required by FAA.
4.
Installation
a.
New electrical feeds for
lighting poles shall be run underground, not overhead.
b.
Poles supporting
lighting fixtures for the illumination of parking areas and located directly
behind parking spaces, or where they could be hit by snow plows or
wide-swinging trucks, shall be placed a minimum of five (5) feet outside paved
area or tire stops, or placed on concrete pedestals at least thirty (30) inches
high above the pavement, or suitably protected by other Municipality-approved
means.
c.
Except for certain
recreational lighting covered elsewhere in this Ordinance, fixtures not meeting
IESNA full-cutoff criteria shall not be mounted in excess of sixteen (16) feet
above finished grade and fixtures meeting IESNA full-cutoff criteria shall not
be mounted in excess of twenty (20) feet above finished grade. For the illumination of greater than 100
contiguous parking spaces, the Municipality may permit the use of a mounting
height not to exceed twenty-five (25) feet for fixtures meeting IESNA full-cutoff
criteria when it can be demonstrated by the Municipality that light trespass
and glare control requirements in this Ordinance have been met.
d.
Pole mounted fixtures
for the illumination of horizontal tasks shall be aimed straight down and poles
shall be plumb.
E.
Residential Development
Fixture Placement
1.
For residential
developments where lot sizes are or average less than 20,000 square feet,
street lighting shall be provided at:
a.
the intersection of
public roads with entrance roads to the proposed development,
b.
intersections involving proposed
public or non-public major-thoroughfare roads within the proposed development,
c.
the apex of the curve of
any major-thoroughfare road, public or non-public, within the proposed
development, having a radius of 300 feet or less,
d.
cul-de-sac bulbs
e.
terminal ends of center
median islands having concrete structure curbing, trees and/or other fixed
objects not having breakaway design for speeds of 25 m.p.h. or greater,
f.
defined pedestrian
crossings located within the development,
g.
At other locations along
the street as deemed necessary by the Municipality
2.
Where lot sizes permit
the parking of less than three (3) vehicles on the residential lot, thereby
necessitating on-street parking, street lighting may be required along the
length of the street.
3.
In multi-family
developments, common parking areas of 4 spaces or greater shall be
illuminated.
4.
In residential
developments with lots of less than twenty thousand (20,000) square feet, where
five (5) or more common contiguous parking spaces are proposed, such spaces
shall be illuminated.
F.
Recreational Uses – The
nighttime illumination of outdoor recreational facilities for such aerial
sports as baseball, basketball, soccer, tennis, track and field, and football
typically necessitate higher than normally allowed fixture mounting heights and
aiming angles, utilize very high-wattage lamps and potentially produce
unacceptable levels of light trespass and glare when located near residential
properties. Permission to illuminate such
facilities shall be granted only when the Municipality is satisfied that the
health, safety and welfare rights of nearby property owners and the
municipality as a whole have been properly protected. When recreational uses are specifically permitted by the
Municipality for operation during hours of darkness, the following requirements
shall apply:
1.
Race tracks and such
recreational venues as golf driving ranges and trap-shooting facilities that
necessitate the horizontal or near horizontal projection of illumination, shall
not be permitted to be artificially illuminated.
2.
Recreational facilities
for basketball, baseball, football, soccer, miniature golf, tennis or track
shall not be illuminated if located within a residential district or sited on a
nonresidential property located within 1,000 feet of a property containing a
residential use.
3.
Sporting events shall be
timed to end at such time that all lighting in the sports facility, other than
lighting for safe exit of patrons, shall be extinguished by ten (10:00) p.m.,
regardless of such occurrences as extra innings or overtimes.
4.
Maximum mounting heights
for recreational lighting shall be in accordance with the following:
a.
Basketball 20’
b.
Football 70’
c.
Soccer 70’
d.
Little League Baseball
(1)
200’ Radius 60’
(2)
300’ Radius 70’
e.
Miniature Golf 20’
f.
Swimming Pool Aprons 20’
g.
Tennis 20’
h.
Track 20’
5.
To assist the
Municipality in determining whether lighting will be permitted, applications
for illuminating recreational facilities shall be accompanied not only with the
information required under Section G. below but also by a visual impact plan
that contains the following:
a.
Plan views containing a
layout of the recreational facility and showing pole locations and the location
of residences on adjoining properties.
b.
Elevations containing
pole and fixture mounting heights, horizontal and vertical aiming angles and
fixture arrays for each pole location
c.
Elevations containing
initial vertical illuminance plots at the boundary of the site, taken at a
height of 5’ line-of-sight
d.
Elevations containing
initial vertical illuminance plots on the windowed facades of all residences
facing and adjacent to the recreational facility. Such plots shall demonstrate compliance with the light trespass
and glare control requirements of this Ordinance.
e.
Proposed frequency of
use of the facility during hours of darkness on a month-by-month basis and
proposed time when the sports lighting will be extinguished.
f.
A narrative describing
the measures proposed to achieve minimum off-site disturbance.
G.
Plan Submission – For
subdivision and land-development applications where site lighting is required
by this Ordinance, is otherwise required by the Municipality or is proposed by
Applicant, lighting plans shall be submitted to the Municipality for review and
approval with preliminary and final subdivision/land development plan
applications and conditional use applications and shall contain the
following:
1.
A plan or plans of the
site, complete with all structures, parking spaces, building entrances, traffic
areas (both vehicular and pedestrian), vegetation that might interfere with
lighting, and adjacent uses that might be adversely impacted by the
lighting. The lighting plan shall
contain a layout of all proposed fixtures by location, orientation, aiming direction,
mounting height and type. The
submission shall include, in addition to existing and proposed area lighting,
all other exterior lighting, e.g., architectural, building-entrance, landscape,
flag, sign, etc.
2.
A 10’x10’ illuminance
grid (point-by-point) plot of maintained horizontal footcandles overlaid on the
site plan, plotted out to 0.0 footcandles, which demonstrates compliance with
the light trespass, illuminance and uniformity requirements as set forth in
this Ordinance or as otherwise required by the Municipality. When the scale of the plan, as judged by the
Municipality, makes a 10’x10’ grid plot illegible, a larger grid spacing may be
permitted.
3.
The maintenance
(light-loss) factors, IES candela file nomenclature, lamp-lumen ratings and specific
lamp manufacturer’s lamp ordering nomenclature, used in calculating the
presented illuminance levels
4.
Description of the
proposed equipment, including fixture catalog cuts, photometrics, glare
reduction devices, lamps, on/off control devices, mounting heights, pole
foundation details and mounting methods
5.
When landscaping plans
are involved, they shall contain the lighting fixture locations and shall
demonstrate that the site lighting and landscaping have been coordinated to
minimize conflict between vegetation and intended light distribution, both
initially and at vegetation maturity
6.
When requested by the
Municipality, Applicant shall also submit a visual-impact plan that
demonstrates appropriate steps have been taken to mitigate the potential
consequences of on-site and off-site glare and to retain the intended character
of the Municipality. This plan may
require the inclusion of initial vertical footcandle values at specific
off-site venues, e.g., bedroom windows of adjacent residential uses.
7. Plan Notes – The following notes shall appear on the Lighting Plan:
a. Post-approval alterations to lighting plans or intended substitutions for approved lighting equipment shall be submitted to the Municipality for review and approval.
b. The Municipality reserves the right to conduct post-installation inspections to verify compliance with the Ordinance requirements and approved Lighting Plan commitments, and if deemed appropriate by the Municipality, to require remedial action at no expense to the Municipality.
c. All exterior lighting shall meet IESNA full-cutoff criteria unless otherwise approved by the Municipality.
d. Installer shall notify municipality to arrange for inspection and approval of all exterior lighting, including building-mounted lighting, prior to its installation.
H.
Street Lighting
Dedication
1.
When street lighting is
to be dedicated to the municipality, Applicant shall be responsible for all
costs involved in the lighting of streets and street intersections until the
street is accepted for dedication.
2.
Prior to dedication and
in the event of the formation of a homeowner’s association and/or property
management declaration, Municipality shall require said agency to enter into an
agreement guaranteeing the Municipality payment of all costs associated with dedicated
street lighting.
3.
Assumption of Costs of
Dedicated Street Lighting – Upon dedication of public streets, the Municipality
shall assess the homeowners’ association, individual property owners, or
corporations, as may be necessary to collect all revenues required that are
directly or indirectly associated with all costs of each specific street
lighting fixture. These costs shall
include:
a.
Administration
b.
Collection
c.
Pro-ration of non
payables
d.
Actual utility
electrical charges
e.
Maintenance and maintenance
contracts for maintenance of fixtures and associated equipment.