Dobbins JLUS IMP Public Draft Light Pollution Study | Page 271

MODEL LIGHTING ORDINANCE - USER’S GUIDE
MODEL LIGHTING ORDINANCE - TEXT
TABLE D EXAMPLE - PERFORMANCE METHOD - User’s Guide
The first step in the Performance Method is to establish the Site Total
Initial Site Lumens which regulates overlighting. The performance method
allows layers of light depending on the complexity of the site.
Table D establishes the basic total initial site lumens allowed. These
lumen allowances are added together for a total initial site lumen
allowance. Allowances include:
1) Initial lumen allowance per site
IX. TABLES (cont.) - Ordinance Text
Table D Performance Method Allowed Total Initial Site
Lumens
May be used on any project.
Lighting Zone
LZ 0 LZ 1 LZ 2 LZ 3 LZ 4
Allowed Lumens Per SF 0.5
Allowed Base Lumens Per Site 0
1.25
2.5
5.0
7.5
3,500 7,000 14,000 21,000
2) Per area (SF) of hardscape
Table E Performance Method Additional Initial Luminaire Lumen
Allowances. All of the following are “use it or lose it” allowances.
All area and distance measurements in plan view unless otherwise noted.
Lighting Application
LZ 0
LZ 1
LZ 2
LZ 3
LZ 4
Additional Lumens Allowances for All Buildings except service stations and
outdoor sales facilities. A MAXIMUM OF THREE (3) ALLOWANCES ARE
PERMITTED. THESE ALLOWANCES ARE “USE IT OR LOSE IT”.
Building Entrances or Exits. This
allowance is per door. In order to
use this allowance, luminaires must
be within 20 feet of the door.
Building Facades. This allowance
is lumens per unit area of building
façade that are illuminated. To use
this allowance, luminaires must be
aimed at the façade and capable of
illuminating it without obstruction.
USER’S GUIDE - Page 29
Appendix B: Model Lighting Ordianance
400 1,000 2,000 4,000 6,000
0 0 8/SF 16/SF 24/SF
ORDINANCE TEXT - Page 29
Page B-29