124.52(A) General provisions. Lighting shall not be used as advertising nor shall it draw more attention to the area at night than during the day. Lighting shall be compatible with the neighborhood.
124.52 (B) Measurement. shall be measured with a direct reading portable low range light meter having an accuracy range of within plus or minus 8% at 1.2 . The accuracy of the meter shall be certified by an independent commercial photometric laboratory within one of the date of its
. The horizontal illuminance readings shall be taken at the surface of the roadway.
124.52(C) Standards. All parking facilities, exterior site areas, and private roadways to be developed in the future shall be illuminated according to the standards contained herein:
124.52(C)(1) Intensity of illumination. The current edition of the IESNA Lighting Handbook, published by the Illuminating Engineering Society, is the standard to be used by the architect or engineer as a guide for the design and testing of lighting. The standards contained therein shall apply unless standards developed and adopted by this Section or subsequent amendments are more restrictive, in which case the more restrictive standards shall apply.
124.52(C)(1)(a) For exterior parking facilities, the intensity of illumination shall provide an average maintained illumination of not less than one
equal to one lumen per square foot at grade level, and shall be well distributed in the pavement areas; however, at no point shall illumination be less than one-half
of light measured at grade level. The maximum to minimum
level shall not exceed a 12 to one (12:1) ratio and the average to minimum
level shall not exceed a four to one (4:1) ratio.
124.52(C)(1)(b) Garage parking facilities shall provide an average intensity of illumination of not less than 50
at the entrance area (the drive aisle and any adjacent parking stalls, and from the portal or physical
line to 60 feet inside the
), ten
in
lanes, and five
in storage areas.
124.52(C)(1)(c) Automatic teller machines (ATMs) shall be provided with a maintained minimum 15
at the face and ten
on all horizontal surfaces within ten feet of the face of the ATM. An average horizontal illumination of three
at grade level shall be provided within a 60-foot radius of exterior units.
124.52(C)(1)(d) Along private roadways serving a new
where inadequate or no lighting exists, developers shall be required to install
lights with a maintained minimum of one-half
of light measured at grade level. The maximum to minimum
level shall not exceed a 12 to one (12:1) ratio and the average to minimum
level shall not exceed a four to one (4:1) ratio.
124.52(C)(2) Parking facility lighting plan. All site plans for
to be constructed after the effective date of this Section must be accompanied by a parking facility lighting plan. The lighting plan shall be certified by a licensed architect or a licensed professional engineer as providing illumination in accordance with the applicable minimum standards set forth in subsection 124.52(C)(1) above. Subsequent
must comply with said lighting plan.
124.52(C)(3) Automatic devices required; hours of illumination. All required illumination shall be controlled by automatic devices:
124.52(C)(3)(a) For business
with exterior or garage parking facilities, the required illumination shall be provided at least 30 minutes after sunset until sunrise.
124.52(C)(3)(b) Any parking facility that serves a residential
must maintain the minimum levels of illumination established by this Section through the use of natural or artificial light 24 hours per day.
124.52(C)(4) Metal halide or Light Emitting Diodes (LED) lighting only. The only lighting permitted shall be metal halide or LED.
124.52(C)(5) Shading and screening. In order to minimize offensiveness to persons on neighboring property and to eliminate distractions to and temporary blinding of drivers of vehicles passing illuminated property, all artificial parking or site area lighting shall either be shaded, recessed, or screened in a manner that eliminates spillover of lighting onto adjacent property and public
. Spillover, measured at the property line, shall not exceed one-half vertical or horizontal illumination onto adjacent properties, light measured at grade level, and shall measure zero vertical or horizontal ten feet into adjacent property. In no case shall lighting, either pole-mounted or
-mounted, be pointed toward the perimeter of the area being illuminated.
mounted lighting is prohibited.
124.52(C)(6) Parking lot lighting. All parking lot lights shall be dark sky compliant and shall be horizontal to the ground.
124.52(C)(7) Letters of compliance required. The lighting installation shall not be placed in permanent
until a letter of compliance from a licensed professional engineer or architect has been provided stating that installation has been field-checked and meets the requirements as stated above.
124.52(C)(8) Compliance time limits. All properties that have illumination standards that do not comply with this Section shall be required to be in compliance within 180 days of its adoption.
(Ord. 2010-21, passed 10-4-2010; Am. Ord. 2015-21, passed 9-21-2015; Am. Ord. 2017-13, passed 9-25-2017)