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| Stray Electron:
--- Quote from: floobydust link=topic=282439.msg3569147#msg3569147 Detroit massive $185M LED streetlight project 25,320 cobra heads replaced [/quote --- That works out to about $70,000 per street light. How the hell does anyone think that that's economically justified? Is it any wonder that Detroit is deeply in debt? --- End quote --- |
| james_s:
--- Quote from: Stray Electron on May 19, 2021, 07:51:45 pm ---[quote author=floobydust link=topic=282439.msg3569147#msg3569147 Detroit massive $185M LED streetlight project 25,320 cobra heads replaced That works out to about $70,000 per street light. How the hell does anyone think that that's economically justified? Is it any wonder that Detroit is deeply in debt? --- End quote --- There's probably more to the story. I can only speculate, but my guess is they're replacing complete installations in a lot of areas, ripping up deteriorated underground wiring, replacing damaged poles, replacing sidewalks and pavement torn up in the process, these sorts of projects are always expensive. In an old city like Detroit it may not be as simple as just going down the street swapping out luminaires. It's possible that Detroit still has some 6.6A series loops like Los Angeles, they've been doing some very expensive retrofit work there to replace many of the deteriorating series loops that were installed from the 1920s up through the 1960s. |
| JohnnyMalaria:
--- Quote from: Red Squirrel on May 19, 2021, 03:44:18 pm --- --- Quote from: Sal Ammoniac on May 18, 2021, 05:26:58 pm ---Why do we feel the need to light up everything at night? We're doing irreparable harm to many animal species that evolved in dark night skies. Human hubris at work... :palm: --- End quote --- That's a good point too, I get that there is a safety aspect, but people survived fine before lights. We need to stop bubble wrapping society. I think a good compromise would be occupancy sensors, roads/area that have no activity the lights would turn off and only come on (slowly dim and not sudden on) if they detect activity. Not really sure what the best way of doing that would be though, simple infrared sensors would trigger every time a bear or large dog passes by, lasers that are higher than a bear on 4 legs could work but pose a risk to eyes. --- End quote --- --- Quote ---Philadelphia has dimmed its skyline after a 'mass collision' killed thousands of migrating birds --- End quote --- https://www.cnn.com/2021/05/19/us/philadelphia-skyline-dimming-birds-collision/index.html |
| Stray Electron:
It seems to me that considering how zealous some of the Federal agencies are about protecting any kind of endangered or "of special concern" species, that if even one of those were killed in this event, that the USG would immediately shutdown all of the street lights, outdoor advertising, bill boards, and and all of the extremely well lit night time activities and every other source of light pollution in Philadelphia. I remember when a major dam project in Tennessee was abandoned in the 1970s after they found some sort of rare snail that no one knew existed and decided that it needed to be protected at all costs under the Endangered Species Act. |
| james_s:
The gratuitous lighting that really bothers me are those insanely bright video billboards that are placed in a few spots along major highways. There's at least one a bit South of where I am that I pass by now and then which doesn't seem to have a night mode, it blazes away at full brightness 24 hours a day and at night it's blinding. IMO it's a dangerous distraction to have any sort of video screen visible from the highway, especially when it's something as pointless as advertising. |
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