Dr. John Barentine FRAS on Nostr: In a roadway #lighting study conducted in Slovenia, "a minimum horizontal illuminance ...

In a roadway #lighting study conducted in Slovenia, "a minimum horizontal illuminance of 1.8 lx and a minimum luminance of about 0.15 cd/m2 were optimal for perceived #safety and comfort." (Pretty low numbers, well below the level at which most streets are now lit.)

https://journals.sagepub.com/doi/10.1177/14771535241269699

#RoadSafety #OutdoorLighting #RoadwayLighting #Perception