Description of parking lot lighting design:
The two main design criteria for parking lots are a minimum light level and a certain uniformity ratio. Because luminaires are designed to meet the needs of different parking lot geometries, manufacturers assign distribution types that describe the coverage area of the luminaire and its shape
There’s a lot more to parking lot lighting than what people think. The proper lighting does not only make the process of parking of vehicles easier but plays a role in deterring theft and other crimes. Not to mention, it also makes your patrons feel more at home and not in a shady place.
While there are many benefits to choosing the right parking lot design, not everyone knows how to pick the one best for them. As a business owner, it’s your responsibility to figure out the specific guidelines or standards based on which you may or may not use the lighting.
parking lot lighting standards:
The lighting system shall provide not less than one footcandle overall average illumination with a minimum of . 25 footcandles on the parking surface, except lots in industrial zones, which may provide not less than 0.75 footcandles overall average illumination.
A. General. Light fixtures shall be designed and shielded so that light is directed onto the parking area and directed away from adjacent property and traffic.
B. Fixture Style. The design and Style of fixtures shall be reviewed and approved in the precise plan by the approval body. Design, color, shape, style, and materials shall match or complement the style and materials of the buildings served.
C. Timers. All lighting except security lighting shall be on a time-clock or photo-sensor system.
D. Lighting Requirements. Parking lots shall be illuminated with a high pressure sodium or other city approved lighting system. The lighting system shall provide not less than one footcandle overall average illumination with a minimum of .25 footcandles on the parking surface, except lots in industrial zones, which may provide not less than 0.75 footcandles overall average illumination. Higher minimum standards may be required in response to unique circumstances as determined by the community development director or designee.
E. Height. Lighting standards in parking lots in and adjacent to residential zones shall not exceed twenty feet in height as measured from the adjacent grade to the top of the light fixture. Heights in other zoning districts shall not exceed district height standards.
F. Review Period. A thirty-day review period beginning with the energizing of a lighting system shall be required to evaluate and adjust illumination levels of parking lots in and adjacent to residential districts or other sensitive land uses.
Parking Lot Lighting Design Calculator:
This calculator is designed to estimate the Luminaire System Application Efficacy and overall cost of a given parking lot luminaire within a given task area, based upon the luminaire’s IES distribution file and your other inputs.
This calculator is based on ASSIST’s recommendation for testing and evaluating the photometric performance of parking lot luminaires for all light source technologies. The recommendation was developed by the Lighting Research Center (LRC) at Rensselaer Polytechnic Institute in collaboration with members of the Alliance for Solid-State Illumination Systems and Technologies (ASSIST).
ASSIST’s recommendation to determine the Luminaire System Application Efficacy of light sources for parking lot applications is based on the premise that luminaires should meet the target photometric criteria for parking lots with minimum energy usage. The two main design criteria for parking lots are a minimum light level and a certain uniformity ratio. Because luminaires are designed to meet the needs of different parking lot geometries, manufacturers assign distribution types that describe the coverage area of the luminaire and its shape.
Thus, the Luminaire System Application Efficacy is based on a calculation area corresponding to the intended coverage for a given luminaire’s distribution. The method accounts for the light (in lumens) that falls inside this target area, but only if the illuminance and uniformity criteria are met. You can download more information on this evaluation method: Vol. 7, Issue 3: ASSIST recommends: Recommendations for Evaluating Parking Lot Luminaires.
If you have any parking lot project which need lighting, please contact us at email:[email protected]