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Platystemon
Feb 13, 2012

BREADS

spankmeister posted:

Don't listen to this idiot. Driving with lights on during the day is way safer.

I didn’t say it wasn’t safer. I said it was weird.

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Hyperlynx
Sep 13, 2015

Lights don't go on automatically in Australia, but the prevailing wisdom is that if you're driving in the country you should keep them switched on even in the day. Nobody does it in the city or suburbs, though, and I'm not really sure they're wrong.

His Divine Shadow
Aug 7, 2000

I'm not a fascist. I'm a priest. Fascists dress up in black and tell people what to do.
Having your lights on whenever you drive is the norm here and it makes a car 1000x easier to spot, sometimes I've almost been surprised by a car because it's lights were off and it blended in so well with the road and surroundings. But if the car has the lights on, you'll spot it hundreds of meters away even if it's not in your direct field of vision thanks to the lamps. It's just such a loving useful thing I don't understand countries where they drive with the lamps off. I think the cops would stop you here if you forgot it, and cars will blink at you to say "hey dude you forgot the lights".

5er
Jun 1, 2000

Atlanta simplifies things a bit in that you can just assume at any given hour the roads in both directions are solid lines of cars.

Humphreys
Jan 26, 2013

We conceived a way to use my mother as a porn mule


Hyperlynx posted:

Lights don't go on automatically in Australia, but the prevailing wisdom is that if you're driving in the country you should keep them switched on even in the day. Nobody does it in the city or suburbs, though, and I'm not really sure they're wrong.

My VE Commie has auto lights. Good fun when going through maccas as they spaz out flicking on and off as I go from the paying window to pickup window.

Phanatic
Mar 13, 2007

Please don't forget that I am an extremely racist idiot who also has terrible opinions about the Culture series.

Jabor posted:

Pretty much just big white goods at this point, I think. Perhaps some older kitchen appliances? Virtually everything these days has an actual microcontroller and hence at least some circuitry to turn AC into low-voltage DC. And a lot of portable appliances use that power circuitry to power the entire device, so you get it to be 110/230V agnostic for free.

Electric heaters, electric stoves, blenders, mixers, toaster ovens, compressors, incandescent bulbs, fluorescent fixtures (they *can* run off DC of sufficient voltage, but if you do that the mercury tends to accumulate at one end of the lamp so fluorescent fixtures that run from DC actually use an inverter to convert to AC first). Think anything that's a big resistive or reactive load. Obviously running the resistive stuff off DC wouldn't be a problem, but the reactive stuff would be.

spankmeister posted:

Don't listen to this idiot. Driving with lights on during the day is way safer.

That's not borne out by actual research.

https://crashstats.nhtsa.dot.gov/Api/Public/ViewPublication/811029

quote:

The analysis found that DRLs have no statistically significant overall effects on the three target crashes. When combining
these three target crashes into one target crash, the DRL effects were also not statistically significant. When examined
separately for passenger cars and light trucks/vans (LTVs), DRLs in LTVs significantly reduced LTVs’ involvements in the
target two-vehicle crashes by 5.7 percent. However, the remaining DRL effects on these three target crashes were not
statistically significant. Although not statistically significant, DRLs might have unintended consequences for pedestrians and
motorcyclists. Particularly, the estimated negative effects for LTVs were relatively large and cannot be completely ignored.

...

Single-Passenger-Vehicle-to-Motorcycle Crashes (Single-PV-to-Motorcycle)

• All the results were not statistically significant.

• There was greater degree of uncertainty in the effects of DRLs on daytime Single-PV-to-Motorcycle crashes since the crash sizes were relatively small compared to other target crashes.

• For fatal crashes, effectiveness of DRLs for both PCs and LTVs were negative. It seemed that DRLs were more likely to increase daytime fatal target motorcycle crashes.

• For PCs, DRLs seemed to reduce daytime Single-PC-to-Motorcycle injury and all crashes. However, for LTVs, DRLs seemed to have adverse effects on daytime Single-LTV-to-Motorcycle crashes. These negative effects were not statistically significant. However, these effects were relatively large and raised concerns regarding possible adverse effects on motorcycle riders.

Overall, DRLs seemed to increase daytime Single-PV-to-Motorcycle crashes.

Phanatic fucked around with this message at 15:15 on Jan 27, 2017

Platystemon
Feb 13, 2012

BREADS

Phanatic posted:

Electric heaters, electric stoves, blenders, mixers, toaster ovens, compressors, incandescent bulbs, fluorescent fixtures (they *can* run off DC of sufficient voltage, but if you do that the mercury tends to accumulate at one end of the lamp so fluorescent fixtures that run from DC actually use an inverter to convert to AC first). Think anything that's a big resistive or reactive load.

Don’t modern fluorescent drivers rectify the the 50/60 Hz AC so they can operate at many kilohertz for greater efficiency and comfort?

LUBE UP YOUR BUTT
Jun 30, 2008


Um maybe you haven't heard but the people have decided that this is the era of alternative facts so you can take your scientific method and gently caress right off!

wyoming
Jun 7, 2010

Like a television
tuned to a dead channel.

Just like a bumper car! :v:

zedprime
Jun 9, 2007

yospos
Alternative fact: anybody in a white car with snow on the ground who doesn't have lights on just because its the daytime is the worst.

chitoryu12
Apr 24, 2014

5er posted:

Atlanta simplifies things a bit in that you can just assume at any given hour the roads in both directions are solid lines of cars.

I still remember one of the last times I went to downtown Atlanta and for some reason one particular cloverleaf on the highway smelled exactly like the inside of a well-used gun range.

CannonFodder
Jan 26, 2001

Passion’s Wrench

Volcott posted:

What are these people saving their headlights for, double nighttime?

It's hard to reach aaaaaall the way over there to turn on the headlights while driving and eating and texting at once.

Phanatic
Mar 13, 2007

Please don't forget that I am an extremely racist idiot who also has terrible opinions about the Culture series.

Platystemon posted:

Don’t modern fluorescent drivers rectify the the 50/60 Hz AC so they can operate at many kilohertz for greater efficiency and comfort?

Electronic ballasts do, yes, you find those in CF lamps. The old-style fluorescent tubes still frequently use equally old-style reactive ballasts.

Megillah Gorilla
Sep 22, 2003

If only all of life's problems could be solved by smoking a professor of ancient evil texts.



Bread Liar

CannonFodder posted:

It's hard to reach aaaaaall the way over there to turn on the headlights while driving and eating and texting at once.
It's like indicating or using your wipers - if you wait until as late as possible, you'll be cooler than anyone else.

RyokoTK
Feb 12, 2012

I am cool.

Gorilla Salad posted:

It's like indicating or using your wipers - if you wait until as late as possible, you'll be cooler than anyone else.

No look, if I turn on my signal to merge, someone might try to move up so they can go ahead of me. So I want to make my driving as unclear as possible so people give me respect to move freely.

DrBouvenstein
Feb 28, 2007

I think I'm a doctor, but that doesn't make me a doctor. This fancy avatar does.

Mikl posted:

Personally I just have my headlights on every time I'm driving, even during the day. Am I weird for doing this?

Same here, but only because I I replaced my headlights with LED bulbs.

I have DRLs, but when they're on/the lights are in the "off" position, it sends a lower volage through, and it causes LED bulbs to flicker, so I have to turn them to 'on' to stop that.

PhotoKirk
Jul 2, 2007

insert witty text here

chitoryu12 posted:

I still remember one of the last times I went to downtown Atlanta and for some reason one particular cloverleaf on the highway smelled exactly like the inside of a well-used gun range.

Have been sent to downtown Atlanta on a business trip, that's pretty accurate.

chitoryu12
Apr 24, 2014

PhotoKirk posted:

Have been sent to downtown Atlanta on a business trip, that's pretty accurate.

I think that was the same trip where I saw two guys beat up and rob another in the middle of the road. Not even a residential neighborhood; it was on a two-lane road leading to or from an interstate.

I enjoy Detroit more than Atlanta.

Anta
Mar 5, 2007

What a nice day for a gassing

That is the only study that found no effect that I could find.

From Daytime running lights in the USA: what is the impact on vehicle crashes in Minnesota?

quote:

Daytime running lights (DRLs) are a safety feature intended to reduce crashes by increasing the contrast between vehicles and the background. Currently, Finland, Sweden, Norway, Canada, Denmark, Hungary, and Iceland all require vehicle lights during daytime hours. Most of the studies of the effectiveness of DRLs have been done in Scandinavia. Finland was the first to institute DRL legislation in rural areas, and literature reports a 27% crash rate reduction [1]. In 1977, Sweden started requiring the use of daytime vehicle lights on all roads, and reduction of crash rates from 9 to 21% were reported by Andersson and Nilsson [2]. Norway began to require installation of DRLs in all new cars beginning in 1985 and use of daytime lights on all vehicles by 1988. A 15% crash rate reduction for crashes involving more than one vehicle was later reported by Elvik [3]. Lastly, Denmark has required use of DRLs on all roads since 1990, with a statistically significant 37% rate reduction for crashes involving a left turn in a study by Hansen [4]. A 1995 paper by Theeuwes and Riemersma criticized the odds ratio methodology of all these early studies [6]. In response, a meta-analysis of 17 studies by Elvik estimated a decrease in crash rate of 10–15% for multi-vehicle crashes and total crash reduction of 3–12% [7].

The first studies of DRLs in North America were done on fleet vehicles. In a study by Stein, corporate fleet vehicles in the USA equipped with DRLs had 7% fewer relevant crashes compared to the group of fleet vehicles without DRLs during 1983–1984 [8]. Sparks et al. reported 15% crash reduction in government fleet vehicles in Canada equipped with DRLs [9]. By December 1989 all newly manufactured vehicles in Canada were required to be equipped with DRLs, and within 4 years, Arora et al. reported a statistically significant 8% reduction in relevant collisions [10].

DRLs in non-fleet passenger vehicles have been introduced more recently in the USA. In 1995, Volvo and Saab were first to install DRLs on all their new cars sold in the USA. By 1997, all new Suzuki, Volkswagen, and General Motors models included DRLs. Yet a decade later, only a few studies and reports have been published regarding the use of daytime headlights in the USA. Farmer and Williams used a case-control method to analyze multiple vehicle daytime crashes in nine states for a group of vehicles equipped with DRLs. They reported that these vehicles were involved in 3.2% fewer crashes [11]. The National Highway Traffic Safety Administration (NHTSA) reported a preliminary assessment in June 2000. Using the Fatality Analysis Reporting System (FARS), they analyzed fatal crashes in four states from 1995 to 1997. They found no significant difference in risk of two vehicle opposite-direction crashes comparing vehicles with DRLs to vehicles without DRLs. However, using the State Data System (SDS) from Florida, Maryland, Missouri, and Pennsylvania, a statistically significant 7% reduction in risk for relevant (including crash subtypes presumably affected by DRLs, such as opposite-direction) nonfatal crashes was identified, and DRL-equipped vehicles were associated with 28% fewer pedestrian fatalities [12].

JB50
Feb 13, 2008

I constantly run into parked cars because they dont have their lights on. When will parking lights be mandated to be on 24/7?

wolrah
May 8, 2006
what?

DrBouvenstein posted:

Same here, but only because I I replaced my headlights with LED bulbs.

"Plug and play" LEDs have the same problems as ebay HID kits. The optics of your light assembly aren't designed for the light pattern emitted by an LED bulb. It may look brighter, in fact it probably does, but that brightness is almost certainly not being used optimally and is probably worse in at least one way (glare, foreground illumination, etc.)

Right now there aren't really any good retrofit projectors for LEDs. The Toyota Corolla units are widely available but are generally considered to be worse than a standard HID projector retrofit. That'll eventually change of course, but a lot of the OEM LED lights aren't actually all that good either.

Alereon
Feb 6, 2004

Dehumanize yourself and face to Trumpshed
College Slice

wolrah posted:

"Plug and play" LEDs have the same problems as ebay HID kits. The optics of your light assembly aren't designed for the light pattern emitted by an LED bulb. It may look brighter, in fact it probably does, but that brightness is almost certainly not being used optimally and is probably worse in at least one way (glare, foreground illumination, etc.)

Right now there aren't really any good retrofit projectors for LEDs. The Toyota Corolla units are widely available but are generally considered to be worse than a standard HID projector retrofit. That'll eventually change of course, but a lot of the OEM LED lights aren't actually all that good either.
I have been almost run over several times because of forward-firing LED turn signals that are completely invisible from the side, especially on a sunny day. It's ridiculously unsafe.

monkeytennis
Apr 26, 2007


Toilet Rascal
More HSE than OSHA but nice to see someone being held accountable:

http://www.bbc.co.uk/news/uk-england-38774080

DrBouvenstein
Feb 28, 2007

I think I'm a doctor, but that doesn't make me a doctor. This fancy avatar does.

wolrah posted:

"Plug and play" LEDs have the same problems as ebay HID kits. The optics of your light assembly aren't designed for the light pattern emitted by an LED bulb. It may look brighter, in fact it probably does, but that brightness is almost certainly not being used optimally and is probably worse in at least one way (glare, foreground illumination, etc.)

Right now there aren't really any good retrofit projectors for LEDs. The Toyota Corolla units are widely available but are generally considered to be worse than a standard HID projector retrofit. That'll eventually change of course, but a lot of the OEM LED lights aren't actually all that good either.

Hmmm..interesting. I've noticed that foreground and just off to the side illumination isn't as good, but I have fog lights that I always keep on that fill in those areas. I also only replaced my low beams, not my high beams, so mostly just in-town driving where there's street lights.

Warm und Fuzzy
Jun 20, 2006

monkeytennis posted:

More HSE than OSHA but nice to see someone being held accountable:

http://www.bbc.co.uk/news/uk-england-38774080

"Gordon, of Dauntsey, Wiltshire - who was also banned from being a company director for 12 years - was driving in a truck in front of the lorry that crashed."

Weird punishments in GB.

evil_bunnY
Apr 2, 2003

Anta posted:

That is the only study that found no effect that I could find.

From Daytime running lights in the USA: what is the impact on vehicle crashes in Minnesota?

However, using the State Data System (SDS) from Florida, Maryland, Missouri, and Pennsylvania, a statistically significant 7% reduction in risk for relevant (including crash subtypes presumably affected by DRLs, such as opposite-direction) nonfatal crashes was identified, and DRL-equipped vehicles were associated with 28% fewer pedestrian fatalities

brah can you not read

wolrah
May 8, 2006
what?

Alereon posted:

I have been almost run over several times because of forward-firing LED turn signals that are completely invisible from the side, especially on a sunny day. It's ridiculously unsafe.
What's really annoying about that is as far as signal lights go you just have to not be a total cheap bastard. LEDs are fairly directional, but since scatter isn't really an issue with signal lights like it is with headlights it's easy to basically brute force the problem by building a "bulb" that contains many LEDs facing all different directions. For turn signals and brake lights that works perfectly fine and gives you an unquestionable improvement over halogen lights.

Unfortunately the cheapest LED modules out there don't do this and just have a single LED aimed out. These are pretty terrible for basically everything except maybe license plate illumination, but idiots buy them because they're just want "LED" and don't really care how they get it.

DrBouvenstein posted:

Hmmm..interesting. I've noticed that foreground and just off to the side illumination isn't as good, but I have fog lights that I always keep on that fill in those areas. I also only replaced my low beams, not my high beams, so mostly just in-town driving where there's street lights.

For a normal headlight less foreground is actually a good thing. The area that fog lights cover really shouldn't be covered by normal headlights because at speed that nearby brightness hurts your distance vision.

With PnP LEDs the usual problems are too much foreground, too little distant output, and a certain amount of glare (though less than a HID bulb in halogen optics).

PostNouveau
Sep 3, 2011

VY till I die
Grimey Drawer

`Nemesis posted:

I posted this in the schadenfreude thread, but it's just as good here

https://www.youtube.com/watch?v=V3-UugI0JoA

You'd think if anybody were to know about this bridge, it would be the fire department. But then they plow a truck into it.

PittTheElder
Feb 13, 2012

:geno: Yes, it's like a lava lamp.

`Nemesis posted:

I posted this in the schadenfreude thread, but it's just as good here

https://www.youtube.com/watch?v=V3-UugI0JoA

I love the guy at 1:15 who clearly thinks "oh this bridge looks a little low, better drive in the middle of the road!"

Bugsy
Jul 15, 2004

I'm thumpin'. That's
why they call me
'Thumper'.


Slippery Tilde

`Nemesis posted:

I posted this in the schadenfreude thread, but it's just as good here

https://www.youtube.com/watch?v=V3-UugI0JoA

Christ, its 10' 6" and has giant curbs that lust for car death.

dexter6
Sep 22, 2003

PostNouveau posted:

You'd think if anybody were to know about this bridge, it would be the fire department. But then they plow a truck into it.
Crews typically are familiar with and roads that they are first or second due to, but that may have been a truck from out of the area. At least, I hope.

What's with the cars randomly hitting each other?

Synthbuttrange
May 6, 2007

dexter6 posted:

Crews typically are familiar with and roads that they are first or second due to, but that may have been a truck from out of the area. At least, I hope.

What's with the cars randomly hitting each other?

Sudden curbs

Three-Phase
Aug 5, 2006

by zen death robot

This is going to be my new synthcore band's name. Thanks.

Azathoth
Apr 3, 2001

Anta posted:

That is the only study that found no effect that I could find.

From Daytime running lights in the USA: what is the impact on vehicle crashes in Minnesota?
I'm curious how much of a difference it makes around sunset in particular, and how much of a difference location makes.

Living in MN, I can say that before DRLs became standard, it was really common to see people driving in twilight without lights on, and by the time you noticed the car, it was blowing by you. I would chalk it up to people who started driving when headlights weren't necessary and didn't go by enough cars to notice that they actually need headlights until it was super obvious. Also, and this is anecdotal, but I've heard people remark on how quickly it goes from full sunlight to total darkness compared to elsewhere in the U.S., so there's more of a chance of needing to turn headlights on en route. Not sure if that's a north/south or a coasts/flyover country thing or what, but I could see there being variation in usefulness based on location.

Anta
Mar 5, 2007

What a nice day for a gassing

evil_bunnY posted:

However, using the State Data System (SDS) from Florida, Maryland, Missouri, and Pennsylvania, a statistically significant 7% reduction in risk for relevant (including crash subtypes presumably affected by DRLs, such as opposite-direction) nonfatal crashes was identified, and DRL-equipped vehicles were associated with 28% fewer pedestrian fatalities

brah can you not read

Uh, yes? My point is that the vast majority of studies found a small but significant effect, that sentence describes one of the many studies with that result.

packetmantis
Feb 26, 2013
Shut the gently caress up about headlights! :negative:

Humphreys
Jan 26, 2013

We conceived a way to use my mother as a porn mule


packetmantis posted:

Shut the gently caress up about headlights! :negative:

Thanks for enlightening us and correcting our course.

The Archaic
Jul 6, 2003

Are you a consultant archaeologist in North America?

Unionize today!

PM me and ask me how your future can be history!
Who here loves cable management?

Three-Phase
Aug 5, 2006

by zen death robot

The Archaic posted:

Who here loves cable management?



Not too shabby, but where are the wire labels?

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Gumbel2Gumbel
Apr 28, 2010

The Archaic posted:

Who here loves cable management?



This is the Cake Wars of cable management

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