Now that you have a basic understanding of design fundamentals -- (you did
review that section, didn't you?) -- let's turn to outdoor lighting design.
In this section, you'll learn how to design lighting for parking lots, roadways and vertical surfaces such as building facades. The design calculations for outdoor lighting are very similar to those performed for indoor lighting. The difference in these two lighting design approaches is dealing with a reflected component.
In indoor lighting design, we are concerned with both the direct component of lighting and the component of light that is reflected off the various surfaces of an indoor space. In outdoor lighting design we are only concerned with the direct component.
You do need to be aware that there could be a reflected component if there are buildings close by that will reflect light back onto the parking lot or sidewalk. However, for this discussion let's assume that only the direct component is significant.
The basic calculation methods available include: the Zonal Cavity or Lumen Method, the Point Method, Iso-footcandle Templates and Manufacturers' Quick Selection methods. Keep in mind that most calculations are done with software.
Select from the following . . .
|
Zonal Cavity Method Point Calculation Method Iso-footcandle Templates |
Fixture Layout Manufacturers' Quick Selection Method Software Programs |
