How does one calculate light pollution reduction using v4 for a college campus. Specifically, does take measurements around the athletic fields on campus?

I am currently working on a project that has a covered, above ground parking garage within the site boundary. Are the fixtures within the parking garage considered interior or exterior fixtures?

Light Pollution Reduction In this section of credit how i identify the mean lamp lumens. because the specification sheet of normally the lumens is mention. for ex.

Is there any circumstance whereby an after hours manual override for a Civic Building would not be acceptable for exterior lighting?

Hallo Bill, The Reference Guide mentions "Software is also available that will calculate the BUG rating using the IES file for the luminaire." Would you please share with us what software the guid

Hi Bill - Perhaps you can help me with this. The RG states a requirement of 200 cd/m2 (nits) for nighttime hours and 2000 nits during daytime hours for Internally Illuminated Exterior Signage.

In LEED v2009 there is mentioned the following about the lighting boundary: illuminance generated from a single luminaire placed at the intersection of a private vehicular driveway and public roadw

Would appreciate very much if anyone can clarify that the maximum allowed percentage of total lumens emitted above horizontal (by lighting zone) is applied to each luminaire or the sum of all lumen

Is there a definition of nightime hours for internally illuminated signage? I would assume midnight to 6 AM as in the excemption for facades but I can't find any statement.

Hi all, Is "Specialized transportation signal, directional & marker lighting" subject to the interior lit exterior sign illuminance limits?