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LZ2 10 foot “hot spots”

NC-2009 SSc8: Light Pollution Reduction
posted by Vincent Pieri on Sep 26, 2011, 3:36 pm

We are owrking on a project on previously developed land that we have established as complying with IESNA LZ2. The surface parking for the project runs along the Southern edge of our site, which...

Building Facade Lighting

NC-2009 SSc8: Light Pollution Reduction
posted by Julien Daclin on Sep 13, 2011, 12:53 pm

We are calculating the Exterior Lighting Power Density on a project that has building facade lighting on each facade. It is not clear whether one needs to take into account the whole area of each...

Parking Lighting not through Building Elect Service

NC-2009 SSc8: Light Pollution Reduction
posted by Michelle Rosenberger on Aug 26, 2011, 4:56 pm

My project puts a new community center on an existing masterplanned campus. My LEED boundary includes new and relocated parking that serve the new building and are part of my project team's scope...

Translating an IES file to give uplight values

NC-2009 SSc8: Light Pollution Reduction
posted by Bill Swanson on Aug 18, 2011, 8:35 am

If you're having trouble knowing exactly how much uplight the light fixtures on your site are emitting there is a simple free tool for converting an IES file into an output that will display...

Public Street Lights and Municipal Dark Sky Policy

NC-2009 SSc8: Light Pollution Reduction
posted by Lauren Ford on Jul 27, 2011, 9:13 am

Our project is on an Urban site bordered by Public right of way on all sides. The property line that we will use as a Project Boundary is several feet outside the curb line. We are required by...

When is the lighting zone classification determined?

NC-2009 SSc8: Light Pollution Reduction
posted by Mark Meaders on Jul 25, 2011, 3:39 pm

We have a govt. project that is building on a greenbuild site. The pre-development condition of the site is an LZ1. However, after the project is developed, there will be over 1m sq. feet of...

lighting pollution simulation software

NC-2009 SSc8: Light Pollution Reduction
posted by qi zhang on Jul 25, 2011, 1:27 am

I plan to get the this credit through simulation.
I heard that DIALUX seems can get it, but I am not so sure.
Please help me and tell me if I plan to get this credit though simuation...

LEED boundary- no parking lot

NC-2009 SSc8: Light Pollution Reduction
posted by Danna Lopez on Jun 28, 2011, 5:57 pm

The LEED boundary for our project does not include the parking lot near the building. The form indicates that we must "upload a photometric site plan of the parking areas with a footcandle...

Facade Lighting

NC-2009 SSc8: Light Pollution Reduction
posted by sompoche sirichote on Jun 12, 2011, 11:38 pm

We are going to provide the LED strip along the vertical line of the building facade.
If we assume that the 50% of their lumen is above 90 degree from nadir then our bldg. will exceed the...

LPD Building Facades with some LED lights

NC-2009 SSc8: Light Pollution Reduction
posted by Norma Lehman on Jun 9, 2011, 10:12 am

It looks as though building facade lighting is a non-tradable surface, but our LED facade lighting is exceeding the...