Dobbins JLUS IMP Public Draft Light Pollution Study | Page 199

C.
D.
(9)
Reflectivity. In order to allow for a variety of surface material options:
a.
Surface parking lots shall be designed, coated or constructed so that illumination levels are no more
what is reflected from asphalt at an average of twenty (20) foot-candles.
b.
Top decks of parking structures shall be designed, coated or constructed so that illumination levels a
more than what is reflected from asphalt at an average of fifteen (15) foot-candles.
One (1) hour after closing, businesses must turn off at least fifty (50) percent of lighting luminaires in surfac
parking lots and on top decks of parking structures; however, those luminaires turned off may be set to func
utilizing a motion detector system or dimmer.
Outdoor Sign Lighting.
A.
All signs located within three-quarters (¾) of a mile of Camp Bullis/Camp Stanley shall be positioned in suc
manner and contain "dark sky" approved shielding devices as to significantly reduce spillover light affecting
military installation and operations. In no instance shall signs be positioned facing parallel to the adjacent
boundaries of the military installation.
B.
On-premises signs may remain illuminated during regular business hours, but may not be illuminated later t
C.
D.
E.
F.
G.
H.
Exhibit 6
one-half (½) hour after the business is no longer open to the public, nor prior to the daily opening of the bus
the public.
On-premises signs utilizing neon tube lighting shall be exempt from the requirements of subsection B above
Single-tenant on-premises signs shall be illuminated at a level no greater than seven (7) foot-candles meas
five (5) feet from the light source. Multi-tenant on-premises signs shall be illuminated at a level no greater th
twelve (12) foot-candles measured at five (5) feet from the light sources.
Exterior means of illumination utilized for on-premises signs shall be positioned in a "top down" manner as d
in Exhibit 4. Bottom-mounted fixtures shall not be used for on-premises signs.
Conventional non-digital off-premises signs shall employ an illumination system utilizing no more than two (
luminaires to illuminate each sign message area (face). Each luminaire shall employ a refractor and hood th
focuses the light on to the sign face and each luminaire may not exceed four hundred (400) watts.
All on-premises and off-premises digital signs shall be illuminated at a level no greater than 0.3 footcandles
ambient light levels for the location and time and shall employ light cutoff devices, such as louvers, to minim
light escaping above the horizontal plane. This subsection (9)G. is not exempt from the requirements of sub
(9)B. above.
Other than the requirements contained in subsection b(1) and subsection (9), the installation, operation, alte
repair or improvement of an illumination device used for an off-premises sign are not subject to the other pr
of sections 35-339.04 or 35-498, but are subject to provisions of Chapter 28 and Chapter 35 as appropriate
D.
(11)
(12)
(13)
C.
Other Prohibited Lighting. Unless authorized by the city council by specific ordinance for a special event:
A.
The use of laser source light or any similar high intensity light, such as used for outdoor advertising or
entertainment, when projected above the horizontal plane is prohibited; and
B.
The operation of searchlights for any purposes is prohibited.
Unmanned Automated Teller Machine Lighting. Unmanned automated teller machines (ATMs) shall comply wit
requirements as listed in section 59.307, Texas Finance Code and this article by utilizing fully shielded or full cutof
luminaires as appropriate.
(15) Exemptions. The following outdoor lighting instances are exempt from the lighting requirements of this section:
A.
All legal outdoor lighting in place prior to the effective date of an MLOD district designation. (see section (16
below).
B.
Outdoor lighting for which light is produced directly by the combustion of fossil fuels.
Nothing in this sectio