An investigation shows that light pollution from Vienna’s street lighting has been reduced by 75 percent – thanks to a successful collaboration between the city and science.
An investigation shows that light pollution from Vienna’s street lighting has been reduced by 75 percent – thanks to a successful collaboration between the city and science.
No they did not, they went for a similar color for the car parts of the street and actually a warmer tone for the cycling and pedestrian parts. That btw also reduces light pollution, as the white ones are much brighter then redish tones.
The large dark sky reserve here in NZ uses 2000K LEDs for all street lighting.
I can’t find an article detailing the streetlights they use. Like you’ve noted, and the bollard pictured in that article, they’re designed to spill zero light above horizontal.