Several papers address this topic, but use a very expensive CCD Camera. I am considering to purchase a $3000 camera capable of a 14 bit depth. Before I make this personal investment, I ask if anyone has pursued this route for roadway lighting luminance evaluations.
Papers I have are
Visibility Measurements with CCD in Road Lighting, Manzano E.R., Cabello A.j.,
The Usage of Digital Cameras as Lumince Meters, Dietmat Wuller, et. al
Measuring Luminance with a Digital Camera, Hiscocks, PE