Illumination
for open parking lots, alleys and access thereto and parking and non-enclosed
areas under or within buildings.
(a)
Generally:
(1)
This
section applies to new construction and all existing buildings.
(2)
Open
parking lots, alleys, and access thereto shall be illuminated as set forth
below. For purposes of this paragraph, alley is defined as a narrow vehicular
thoroughfare up to twenty-five (25) feet in width upon which service entrances
or buildings abut and not generally used as a thoroughfare for general traffic;
provided, however, alleys shall not include public rights-of-way.
(b)
Groups A (Assembly), D (Day Care) and E (Educational) occupancies:
(1)
Open
parking lots and access thereto shall be provided with a maintained minimum of
1 foot-candle on the parking surface from dusk until dawn; provided, however,
the lighting level may be reduced by fifty (50) percent on non-business days
and commencing thirty (30) minutes after the termination of business on each
operating day. The uniformity ratio shall not exceed a twelve to one ratio
(12:1) maximum to minimum foot-candles. This provision shall not apply to
governmental facilities not generally open to the public, and shall apply to
those governmental facilities that are generally open to the public only during
the dusk-to-dawn hours such facilities are open.
(2)
Parking and non-enclosed areas under or
within buildings at grade shall be provided with a maintained minimum of 1
foot-candle of light on the parking and walking surfaces from dusk until dawn
and the ratio of maximum to minimum illumination in foot-candles shall not
exceed twelve to one (12:1); provided, however, the lighting level may be
reduced by fifty (50) percent on non-business days and thirty (30) minutes after
the termination of business one each operating day. This provision shall not
apply to governmental facilities not generally open to the public, and shall
apply to those governmental facilities that are generally open to the public
only during the dusk-to-dawn hours such facilities are open.
(3)
Alleys shall be provided with a maintained
minimum of 1/3 foot-candle on the alley surface from dusk to dawn. The
uniformity ratio shall not exceed a twelve to one (12:1) maximum to minimum
foot-candles. This provision shall not apply to governmental facilities not
generally open to the public, and shall apply to those governmental facilities
that are generally open to the public only during the dusk-to-dawn hours such
facilities are open.
(c)
Groups F (Factory Industrial), H (Hazardous), I (Institutional), S
(Storage) and R4 (Residential care/assisted living facilities) occupancies:
(1)
Open
parking lots and access thereto shall be provided with a maintained minimum of
0.5 foot-candle on the parking surface from dusk until dawn; provided, however,
the lighting level may be reduced by fifty (50) percent on non-business days
and commencing thirty (30) minutes after the termination of business on each
operating day. The uniformity ratio shall not exceed a twelve to one ratio
(12:1) maximum to minimum foot-candles.
(2)
Alleys
shall be provided with a maintained minimum of 1/3 foot-candle on the
alley surface from dusk to dawn. The uniformity ratio shall not exceed a twelve
to one (12:1) maximum to minimum foot-candles. This provision shall not apply
to governmental facilities not generally open to the public, and shall apply to
those governmental facilities that are generally open to the public only during
the dusk-to-dawn hours such facilities are open.
(3)
Parking
and non-enclosed areas under or within buildings at grade shall be provided
with a maintained minimum of 1 foot-candle of light on the parking and walking
surfaces from dusk until dawn and the ratio of maximum to minimum illumination
in foot-candles shall not exceed twelve to one (12:1) provided, however, the
lighting level may be reduced by fifty (50) percent on non-business days and
commencing thirty (30) minutes after the termination of business on each
operating day. This provision shall not apply to governmental facilities not
generally open to the public, and shall apply to those governmental facilities
that are generally open to the public only during the dusk-to-dawn hours such
facilities are open.
(4)
The
area immediately outside of exterior doors shall have security illumination and
shall be activated during the dark period of every day.
(d) Group B (Business) and M (Mercantile) occupancies:
(1)
Open
parking lots and access thereto shall be provided with a maintained minimum of
1.0 foot-candle on the parking surface from dusk until dawn; provided, however,
the lighting level may be reduced by fifty (50) percent on non-business days
and commencing thirty (30) minutes after the termination of business on each
operating day. The uniformity ratio shall not exceed a twelve to one ratio
(12:1) maximum to minimum foot-candles.
(2)
Alleys
shall be provided with a maintained minimum of 1/3 foot-candle on the
alley surface from dusk to dawn. The uniformity ratio shall not exceed a twelve
to one (12:1) maximum to minimum foot-candles. This provision shall not apply
to governmental facilities not generally open to the public, and shall apply to
those governmental facilities that are generally open to the public only during
the dusk-to-dawn hours such facilities are open.
(3)
Parking
and non-enclosed areas under, or within buildings shall be provided with a
maintained minimum of 1 foot-candle of light on the walking and parking
surfaces from dusk until dawn, and the ratio of maximum to minimum illumination
in foot-candles shall not exceed twelve to one (12:1); provided, however, the
lighting level may be reduced by fifty (50) percent on non-business days and
commencing thirty (30) minutes after the termination of business on each
operating day. It is provided, however, that this provision shall not apply to
governmental facilities not generally open to the public, and shall apply to
those governmental facilities that are generally open to the public only during
the dusk-to-dawn hours such facilities are open.
(4)
The
area immediately outside of exterior doors shall have security illumination and
shall be activated during the dark period of every day.
(e)
Group R1 (Residential transient) and R2 (Residential multiple dwelling)
occupancies:
(1)
Open
parking lots and access thereto shall be provided with a maintained minimum of
1.0 foot-candle on the parking surface from dusk until dawn. The uniformity
ratio shall not exceed a twelve to one ratio (12:1) maximum to minimum
foot-candles. Alleys shall be provided with a maintained minimum of one-third (
1/3) foot-candle on the alley surface from dusk to dawn.
(2)
Parking
and non-enclosed areas under, or within buildings shall be provided with a
maintained minimum of 1.0 foot-candle of light on the walking and parking
surfaces from dusk until dawn, and the ratio of maximum to minimum illumination
in foot-candles shall not exceed twelve to one (12:1).
(Ord. No. 01-196, § 1, 11-20-01)