Roadpollution, free software for the evaluation of the environmental impact of road lighting http://www.lightpollution.it/roadpollution/index.html Save the Sky - Easy Light, free software for the optimization of road lighting design http://www.vialattea.net/bonata/stsky.htm The last reference from Roadpollution page is: [10] Cinzano, P., Light pollution by luminaires in roadway lighting, paper presented at the CIE TC4-21 (Interference of light on the astronomical observations), CIE Div.4 meeting, Turin, 28 September - 3 October 2002: http://www.lightpollution.it/roadpollution/roadpaper1_turin.pdf See also the slide presentation: http://www.lightpollution.it/roadpollution/Roadpollution_torinoPDF%208.pdf These are good references to be given in the EuP, regarding ULOR. And a quote from Pierantonio's letter to Bob from October: So you should try something like: Light pollution control: the key for energy saving and better lighting Light pollution control: the way to energy saving and better lighting bon apetite ;-0 jenik