Comment by easygenes

I'm glad that darkness is respected in some places. The need to live in constant light is, to me, unnerving. Light pollution, like noise pollution, creates a myopic dome of sensory oblivion, separating us from experiencing the sounds of nature, the splendor the night sky, the emotions of isolation. I think we'd be better off with a nightly reminder of the natural world and expansive universe beyond our city block.

I was once in the US Navy, and stood many a bridge watch. When it got dark, all outside lights except for the navigation lights (red light on port bow, green on starboard bow, a white light up top and another white light on the stern). And on the bridge, we used only dim red lights, to avoid affecting our night vision. None of the navigation lights was easily visible from the bridge. And you could see reasonably well, even on a cloudy night.

Where I come from they did change the lights to LEDs, but they turn off 2/3rds or 3/4ths of them after midnight; still enough light to navigate, but much less power usage and light pollution. There's a bike lane outside of town whose lights were motion activated, iirc that was installed about 20 years ago.

I'm a regular outdoor runner and also an extreme morning person, so I'm often out running at like 3 AM, and it is absolutely not safer to be in complete darkness. Surfaces are not perfectly uniform and unobstructed and the ambient light from the atmosphere and surrounding city, even dead in the center of a major metro area, is nowhere near enough to see everything you might hit. I've tripped many times and even broken my hand before. It is effectively impossible to ever go full speed.

I walk a lot and support this, even though I am not convinced it makes me more visible when not in front of the headlights. Typically, the danger happens when walking on the sidewalk perpendicular to a road. I can see the car, they cannot see me until I'm a few feet in to the crosswalk when I'm not lit up by a street light.

WTF? What about pedestrians? Are they walking in full darkness?

This seems to be totally oriented to cars. I find American cities incredibly dark by night. Walking around feels too dark and unpleasant.

> The experience is highly cognitively dissonant and counterintuitive.

Hitting the next homeless person and throwing them 10 meter in the space will be quite the experience.

Honestly, this is not shitty experience because of regulation, this is just councils cutting costs everywhere except their salaries. Los Angeles these last couple days has showed what it means to do that. You'll literally be on fire some day.

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.

My impression was that HPS lighting became so widespread not because of the supposed advantages of its light spectrum, but because it was simply the most light-efficient technology available at that time. Here in Germany, only main/multilane streets requiring more lighting were using HPS, residential streets mostly had lamps with white fluorescent lights, so switching those to LEDs wasn't as much of a change. But still, I'm wondering: what about curtains, window blinds etc.? It's not as if people are forced to endure the intrusion of street lighting into their bedrooms?

Just to be clear, these are about 1-3 years old. So yes they probably weren't purple on the day they were installed, but this is a defect and not normal aging. https://www.reddit.com/r/todayilearned/comments/136nz3b/til_...

They'll be near-UV LEDs with a phosphor to produce white, high efficiency, low cost, but garbage long term.

i mean who wouldn't be the way they're playing

Not true, they're just defective and degraded quickly, resulting in the odd color.

Implies no white balance shenanigans