SITE DESIGN > LIGHTING
DESIGN OBJECTIVE (Page #68) Lighting shall contribute to site safety and security and complement the built form while not detracting from the overall quality of the site or surrounding uses and activities.
DESCRIPTION Primary purpose of site lighting is to provide minimum lighting levels for security purposes in pedestrian and parking areas. Centers are places with daytime and often nighttime activities. Site lighting should not detract from the overall appearance of the site. It should not contribute to “light pollution” and should not negatively affect surrounding uses. Lighting should be designed to satisfy both functional and decorative needs and should relate to the pedestrian user. Storefront lighting should complement to architectural style of the building while providing illumination of building facades and entrances.
Example #1 Page 68
Properly used and represented
in a "historic district". This is not Rancho Cordova.
Rancho Cordova dates back to 1960s.
Do This: The El Dorado Town
Center, in El Dorado County,
California uses a variety of
light fixtures both on and off
the building that integrate
with the architectural style
of the structures. Fixtures
are oriented to accentuate the
architecture of the building or
to light the pedestrian path.
While maintaining the visual
integrity of the fixture, tall
fixtures are capped or muted
at the top to reduce light
one of the most offensive fixture in common use. These
fixtures should only be used in historic districts (AS SHOWN) and only fixtures
which qualify as full cutoff. Many other decorative style
fixtures are available.
Good Lighting for examples.
See also Skykeepers Lighting Examples.
Example #2 Page 68
Don’t Do This: This light fixture is very tall and oriented to light
only the parking area. It is out of scale with the rest of the
This should not be a "Don't". It just represents on of the options to a lighting designer. Other lighting should be used closer to the building.
Other considerations are Title 24 which requires energy efficiency.
In this case hight output Metal Halide
coupled with a refractive element make for considerable glare and up
light. A Gross
Another example of a
Example of Good Lighting from the City of Elk Grove Design Guides.
DESIGN GUIDELINES (Page #69) 1. Exterior lighting shall be
designed as an integral part of the building and landscape design.
Lighting fixtures shall be architecturally consistent with the overall
site design and character. Creativity in fixture design is encouraged. 2. Lighting in parking areas shall
be limited in scale (height) and shall be of a design that is
consistent with the overall site architecture and style. 3. Limit the amount of site lighting
to reduce overall light pollution generated by the project. Shield or
screen lighting fixtures to direct the light downward and prevent light
spill on adjacent properties. 4. In general, the location of lighting should respond to the anticipated use and not exceed the amount of illumination required by users, such as: • Pedestrian-scaled lighting along walkways through parking lots; • Fixtures concealed or integrated into the design of buildings and site landscaping, walls and stairs; • Regular and consistent spacing of compatible lighting fixtures to reinforce visual order.
Continued on (Page #70)
Example #1 Page 69
The lighting at this shopping center
in Pasadena, California accentuates
the architecture without contributing
to light pollution.
This should not be considered a good example of quality lighting.
Example #2 Page 69
This lighting fixture on the side of an industrial building in Rancho Cordova, California is compatible with the architecture of the building and is shielded.
This lighting fixture is NOT shielded sufficiently to address the Objectives or Standards. The lamp and refractive
elements of this fixture are observable from off site and the light
fixture contributes to sky glow and light pollution in the reason.
DESIGN GUIDELINES Continued (Page #70)
5. Building lighting shall be
directed onto the façade, entrance areas of buildings, or onto
pedestrian pathways only as a way to increase site safety and
accentuate the architecture of the building without creating or
otherwise contributing to light pollution. 6.
Light fixtures taller than six feet should be separated from trees that
have canopies between 20 and 30 feet by a minimum distance of 20 feet. This is intended to reduce potential
damage to the light fixture and minimize the need to prune the tree in
order to maintain adequate down lighting from the fixture. The City is
willing to consider other design solutions that meet the intent of this
guideline. ( Wonderful! )
In order to minimize light trespass on residential properties directly
abutting a multi-family site, illumination measured at the nearest
residential property line shall not exceed the moon’spotential ambient illumination of one-tenth foot-candle.
2. The maximum height for all freestanding light fixtures on private property shall be 18 feet from finish grade.
3. The following types of lighting are prohibited:
• Overly bright or excessive lighting
• Lighting which spills into residential areas or onto adjacent street rights-of-way
• Light poles that obstruct pedestrian traffic
• Security spotlight (except in loading areas and building entrances)
• Moving, flashing, or animated lighting
DESIGN GUIDELINES (Page #17)
2. Use landscaping to enhance the pedestrian experience:
• Soften large building walls and screen objectionable views with landscaping;
• Provide shade with trees and structural elements;
• Use combination of landscape, paving elements, furniture, lighting and other elements to create dynamic visually interesting
Rancho Cordova Design Guidelines Provisions for a Quality Community B:1 APPENDIX B
Chapter 2 Checklist for Project Review
RANCHO CORDOVA DESIGN GUIDELINES A. COMMUNITY DESIGN CHECKLIST FOR ALL PROJECT TYPES
------- Review Section #1 -------
SITE DESIGN > SAFESCAPE (2:58) (Page# 11) OBJECTIVE: Create safe, inviting, pedestrian places that incorporate crime prevention design elements and emphasize linkages and surveillance between the buildings and the street.
DESIGN GUIDELINES 9. Night lighting illuminates passageways and building entrances. (Page# 12)
------- Review Section #2 ------- SITE DESIGN > ART IN PUBLIC PLACES (2:66) (Page# 13 - 14)
4. Buildings are designed a public art through their articulation, architectural style/features, and lighting. (Page# 14)
------- Review Section #3 -------
SITE DESIGN > LIGHTING (2:68) (Page# 14) OBJECTIVE: Lighting shall contribute
to site safety and security and complement the built form while not
detracting from the overall quality of the site or surrounding uses and activities.
DESIGN STANDARDS 1. In order to minimize light trespass on residential properties directly abutting a multi-family site, illumination measured at the nearest residential property line shall not exceed the moon’s potential ambient illumination of one-tenth foot-candle.
2. The maximum height for all freestanding light fixtures on private property is 18 feet from finish grade.
3. Prohibited lighting is not used as part of the project.
DESIGN GUIDELINES 1. Exterior lighting is an integral part of the building and landscaping.
2. Lighting in parking areas is consistent in scale and style with the rest of the project.
3. Light pollution (spill on adjoining property) is minimized.
4. The location of lighting responds to the anticipated use and does not exceed the amount of illumination required by users (three provisions listed for implementation).
5. Building lighting is directed onto appropriate areas of the site.
------- END Review APPENDIX B -------
Comments: This Design Guide marks a very good
effort to reduce Light Trespass and Glare but fall short in preventing
"Urban Sky Glow". To "avoid
light spill and glare on adjacent
properties" is wonderful however it does not protect the Dear Creek
Hills to the south east, or American
River Parkway to the north.
"Exterior building and site
lighting shall be designed so that light is not directed off site" can
and should be interpreted as no spill light beyond the property on
which the light originates.
1. In order to minimize light
trespass on residential properties directly abutting a multi-family
site, illumination measured at the nearest residential property line
shall not exceed the moon’potential ambient illumination of one-tenth foot-candle.
This is an excellent way of defining Light Trespass in a suburban or
However Deep Twilight = 0.1 fc and the Full Moon = 0.01fc are the
accepted values. Light
Trespass not exceeding 0.01fc after curfew
hours should be considered a standard. It is similar to
and in some ways superior to the idea in the Yocca
Valley Ordinance, San Bernardino County - (h) "Light
Trespass" means nuisance glare from any lighting onto neighboring
property that interferes with viewing of night sky or eliminates the
ability to have darkness on the adjacent property or shines into
neighboring windows and all or any areas on neighboring properties or
structures. Quantitative measurement of light trespass shall be with a
standard yard stick (3 ft x 1.5 in.). The yard stick shall be placed at
the building setback line in the complainants yard. The yard stick
shall be in contact with the ground and in a vertical position. The
enforcement personnel shall than determine if a shadow is cast by the
light source. The light source, yard stick, and shadow must be in
alignment. Measurements shall not be taken when there is a moon in the