this post was submitted on 05 Jun 2025
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[–] catloaf@lemm.ee 202 points 2 days ago (6 children)

By signaling to oncoming traffic and vehicles approaching from the side, a front brake light provides an essential visual cue that a car is slowing down or preparing to stop. When the light is extinguished, it indicates that a stationary vehicle might initiate movement. According to Tomasch, this visual feedback can significantly truncate the reaction time for other road users, leading to shorter stopping distances and consequently diminishing the likelihood of accidents.

Sounds reasonable. Personally I just want front turn signals to be visible from the opposite side again.

[–] entropicdrift@lemmy.sdf.org 121 points 2 days ago (1 children)
[–] rollerbang@lemmy.world 44 points 1 day ago (3 children)

Here's an idea. How about we zap the drivers after they make a turn if they didn't use a turn signal beforehand? 😀

[–] njordomir@lemmy.world 15 points 1 day ago

Can we do this in the same bill as the popup spikes that take out your tires if you stop across the crosswalk? The guided RPGs replacing red light cams can wait a little longer.

[–] xthexder@l.sw0.com 4 points 1 day ago (1 children)

Cars with lane-keep assist with vibrate the steering wheel and beep at you. It's at least something but I think most people turn it off if it gets annoying

[–] Rexios@lemmy.zip 9 points 1 day ago (3 children)

Anyone complaining about lane keep not letting them change lanes or make turns is telling on themselves

[–] xthexder@l.sw0.com 6 points 1 day ago

There are a couple situations where it's annoying and I turn it off. My truck has the "steer back into lane" style assist, but it's tried to push me off the road before while I was towing a trailer on some narrow 1-lane roads. Some of the corners it's just not possible to get around without touching the center line.

The vast majority of the time it stays on though and is quite helpful.

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[–] ThePantser@sh.itjust.works 2 points 1 day ago (1 children)

Couldn't we just use the point system from 5th element? The car noticed you did something illegal and dedicated from your point pool.

[–] Hubi@feddit.org 17 points 2 days ago (2 children)

Personally I just want front turn signals to be visible from the opposite side again

Not sure if I read that correctly, but I don't think this has ever been the case?

[–] catloaf@lemm.ee 22 points 1 day ago

I mean when a car is coming at me from a cross street, I want to be able to tell if they're turning or just an asshole not using their signal. On some cars, the turn signal is mounted so far to the side that if they're approaching from my right and turning right onto the same street as me, I can't see that turn signal. Sometimes combined with the roundness of the nose exacerbating the problem.

[–] SaltSong@startrek.website 6 points 1 day ago (3 children)

I think what he wants is the front turn signal to wrap around the front, so I can see the left signal from the right quarter.

I'm not aware that this is not the case, but I don't know that I would have noticed if it was not.

[–] sugar_in_your_tea@sh.itjust.works 3 points 1 day ago (1 children)

Isn't that the case for pretty much everything? Newer cars alternate blinking their headlights and the signal indicator, and even cars w/ the turn signal on the side will have some light bleed through since it's all one assembly. In the majority of cars, I can see their turn signals when they're perpendicular to me. The larger issue is that most people in my area don't bother to use their signals in the first place.

[–] SaltSong@startrek.website 1 points 1 day ago (1 children)

Yea, that's part of why I don't know for sure if they make cars the way the guy at the top of this thread is describing.

[–] sugar_in_your_tea@sh.itjust.works 1 points 1 day ago (1 children)

Same. I don't think I've ever seen a car that can show me the signal on the opposite side of the car, but I have seen a lot of cars where I can see the indicator while stopped at an intersection and the car is perpendicular to me, since I have a little bit of angle to see the edge w/ the indicator.

99% of the time, it's not an issue, and the other 1% of the time it doesn't really matter if I can see the indicator (I.e. they're already halfway turning, so they're angled away from me).

[–] catloaf@lemm.ee 3 points 1 day ago

Yes that's all I want, to be able to see the indicator again. A lot of newer cars have moved them too far to the side of the vehicle.

I encounter this pretty often because a Boston area streets are terrible and the drivers are worse, so a visible indicator helps all drivers make traffic flow more smoothly.

[–] acosmichippo@lemmy.world 2 points 1 day ago (1 children)

i don't think that was ever required in the US. it is elsewhere though.

[–] SaltSong@startrek.website 5 points 1 day ago

Can't speak to "required." But I know it used to be done.

[–] Ghoelian@lemmy.dbzer0.com 1 points 1 day ago (1 children)

I'm pretty sure most cars have a turn signal near the headlights, and one on the mirror or on the side for that use case, no?

[–] Ghoelian@lemmy.dbzer0.com 1 points 1 day ago* (last edited 1 day ago)

Actually I think I remember watching a technology connections video about how card in the US can use the headlights as a turn signal, or something like that. I don't think that's allowed in Europe or the EU or whatever.

Found it https://www.youtube.com/watch?v=O1lZ9n2bxWA

[–] NocturnalMorning@lemmy.world 14 points 2 days ago (8 children)

Theres a saying in computer stuff that applies nicely here. PEBKAC, problem exists between keyboard and computer...turn signals have to be turned on, no amount of engineering can fix bad driving.

[–] Gerblat@lemmy.world 41 points 2 days ago (1 children)

Heads up, it’s actually keyboard and chair, not keyboard and computer

[–] NocturnalMorning@lemmy.world 4 points 2 days ago

Dang it, sometimes I just type stuff and dont think about what I typed (the irony of what I was writing out)

[–] drbluefall@toast.ooo 9 points 2 days ago (2 children)

I've always heard it as "PICNIC"

Problem In Chair, Not In Computer

[–] Shdwdrgn@mander.xyz 7 points 1 day ago (2 children)

And never forget about the I-D ten T error.

ID10T for those who didn't get it.

[–] HiTekRedNek@lemmy.world 4 points 1 day ago* (last edited 1 day ago)

Layer 0 obfuscation error.

[–] Sidhean@lemmy.world 2 points 1 day ago

Oh, you think I need a new chair? Will the Internet come back then?

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[–] sour@feddit.org 5 points 2 days ago (6 children)

How would you do that so it isn't ugly as hell and isn't prone to misunderstanding?

[–] acosmichippo@lemmy.world 4 points 2 days ago* (last edited 2 days ago) (1 children)

How would you do that so it isn’t ugly as hell

same way we do with lights now, design them attractively. It is not always successful and that's on the manufacturers.

and isn’t prone to misunderstanding?

what about it is confusing? green = not coming at you so it's okay to turn left (or whatever).

[–] floo@retrolemmy.com 2 points 1 day ago (2 children)

This wouldn’t really be helpful to those who are colorblind.

[–] Trashboat@lemmy.blahaj.zone 5 points 1 day ago* (last edited 1 day ago) (1 children)

Somebody better tell traffic light designers

[–] sour@feddit.org 1 points 1 day ago (1 children)

Red is always on top (at least in Europe) so even color blind people know what the signal is.

[–] Trashboat@lemmy.blahaj.zone 1 points 13 hours ago

Same here in the US, though I’ll say as someone actually colorblind, it’s not the easiest to decipher the red/yellow when at speed until you’re somewhat close. Normally not an issue since anything resembling red=start slowing down, but there are situations where a standard light may start acting as a single flashing red or yellow, and that can be tough to figure out at speed. Flashing reds are supposed to have stops signs here as far as I know, but there’s been at least one intersection that hasn’t had them, which certainly gives me some anxiety about taking that as a rule. The system works alright enough, but it’s definitely frustrating that we settled on red/green for things when that’s the most common color blindness. I have some strong opinions on bathroom indicators, particularly in airport bathrooms where the lighting is often sub par too

[–] acosmichippo@lemmy.world 2 points 1 day ago (1 children)

okay, pick a different color then. it's a solvable problem.

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[–] Oneshot@discuss.tchncs.de 3 points 2 days ago (1 children)
[–] sour@feddit.org 1 points 1 day ago (4 children)

How would that work? If you look from the side you suddenly don't see anything again, or an arrow point forwards or backwards?

If you look from the front, current turn signals work for that already.

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[–] sugar_in_your_tea@sh.itjust.works 1 points 1 day ago (2 children)

I've seen newer cars turn the headlight off while the turn indicator is on, so you get a sort of double-blink effect.

I don't see any reason why we can't just have the whole headlight blink yellow as well with the turn indicator. LEDs are everywhere and can handle changing colors really easily, so it's not hard to require that for all new cars.

[–] sour@feddit.org 1 points 1 day ago (3 children)

Absolutely, but that doesn't solve the problem that's talked about here (seeing the turn signal from the other side of the vehicle). It might be clearer what the turn signal is, but if you look at the right side of a vehicle, you won't be able to see the left headlight, even when it's massive.

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[–] Almacca@aussie.zone 2 points 1 day ago (1 children)

Some of the new Kias have the rear indicators in the bumper. Why are they hiding them?

[–] catloaf@lemm.ee 3 points 1 day ago (1 children)

Because the designers and marketers were given priority over the safety engineers.

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[–] moakley@lemmy.world 2 points 1 day ago

So it sounds like you're checking to see when the light turns off, to know that the car is going.

Sounds like what we actually need is a green accelerator light on the front of the car.