Can warehousing ramp lighting for transportation exempt from Light Pollution Reduction

Per the Credit exemption, "specialized signal, directional, and marker lighting for transportation".

You copied the wording from the exemption but are still asking for guidance.  That make me think you are trying to force fit a light into the exemption.  I consider transportation light in this exemption as any light that conveys information to the driver.  Are you just providing area light on the ramp so the drivers can see where they are going or are these lights informational, like arrows, stop lights, pavement perimeter marking, hazard warning strobe, etc? Area lighting is not specialized.  What are these lights doing that is specialized to help the driver?  

If the light is illuminating the road it is not exempted. There are two parts to this credit.  Reduce uplight.  Reduce light trespass. I'm confident it doesn't have an impact on the light boundary.  It still needs to be documented.  Backlight is not an worry for a recess light.  With such a low mounting height I doubt it can reach the light boundary.  You are probably having an issue with glare and uplight.  The calculation method is the only way to avoid these issues.  Assuming there are enough other lights on the site. "...very difficult to control some random reflextion light spot..." I do not understand this.  The software I use only calculates direct light for exterior lighting.  Direct and Interreflected light is used for interior calculations.  Most exterior surfaces have such a low Light Reflectance Value that there's no point.