What is the color temperature that makes the road most clear during driving, even under unconditional weather?
I am not familiar with any research on this topic, but some might exist. My understanding is that moderate color temperatures (say around 4000K) are being used as a trade-off between the traditional halogen lamps that are too yellow to render colors well and the bluer discharge lamps that tend to produce a lot of visual glare for oncoming traffic. That might well be the best compromise.
