Blue light is safer for cars - it gives slightly faster reaction times, and lower the chance of drivers falling asleep.
The problem is that for pedestrians, the reaction-time is irrelevant, they're butt-ugly, and plenty of people go on night walks because they can't sleep but want to.
Half of this article is basically about cities being overly car-centric.
Or maybe they care about getting to their destination in time and not wasting half a day just going from point A to point B on foot/by (shitty) public transportation, or they'll be fired.
Daily reminder that we live under capitalism where you're not allowed to just "take your time".
I’m not well-read on the old lighting research, but I’ve come across some explanations for why humans actually do much better with amber outdoor lighting than white. One of these points relates to how our pupils expand and contract with the amount of light available.
In some ways, car-centric cities are like that because people don't care. "I'll just take my car, whatever". They don't care about traffic, pollution, accidents, etc.