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Traffic lights (startrek.website)
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[-] ares35@kbin.social 8 points 11 months ago* (last edited 11 months ago)

i remember visiting extended family back in, i think, the early 80s. down in alabama or something. their traffic lights went green>yellow>red, as expected. but then went red>yellow>green.

[-] hemko@lemmy.dbzer0.com 10 points 11 months ago

This is normal in Europe too, and actually helps to clear up the traffic. You see red+yellow lights on, you put on first gear and prepare to start moving.

[-] ares35@kbin.social 7 points 11 months ago

in many (maybe even 'most') american towns and cities, there would be too many drivers going on that yellow and not waiting for the green.

[-] onion@feddit.de 2 points 11 months ago

They'd be running a red light

[-] hemko@lemmy.dbzer0.com 2 points 11 months ago

There's a clear difference though. Yellow = no-go, yellow+red = prepare to go

[-] andthenthreemore@startrek.website 9 points 11 months ago

What would you expect them to do? Go straight from red to green?

[-] possiblylinux127@lemmy.zip 12 points 11 months ago

That's what normally happens

[-] geophysicist@discuss.tchncs.de 7 points 11 months ago

Yes. That's what happens in most countries

[-] andthenthreemore@startrek.website 1 points 11 months ago

So they just go straight to green without any warning?

[-] geophysicist@discuss.tchncs.de 3 points 11 months ago

Why would you need a warning? It's not a race. In fact, that's probably part of the reasoning of not having a yellow before changing to green

[-] andthenthreemore@startrek.website 1 points 11 months ago

So you can get in gear, do observations and be ready to move when the light turns green.

[-] VindictiveJudge@startrek.website 3 points 11 months ago

More or less. If you're paying attention to what's going on around you you'll notice other traffic stop before your light turns green. There's also typically a second or two where all lights are red before one turns green to make sure the intersection is clear.

[-] DasherPack@lemmy.world 6 points 11 months ago

That's what traffic lights do here in Spain. I don't actually know if Red-yellow-green has any advantage

[-] possiblylinux127@lemmy.zip 4 points 11 months ago

That's the part where you spin your tires to burn

[-] FlyingSquid@lemmy.world 4 points 11 months ago

In the UK, they go Green-Yellow-Red-Yellow-Green, which seems pretty sensible to me.

[-] uis@lemmy.world 2 points 11 months ago

Imagine green-blinking green-yellow-red-red+yellow-green.

[-] realitista@lemm.ee 3 points 11 months ago* (last edited 11 months ago)

Czechs do this too. Gives you time to menacingly rev your engine at the car next to you.

[-] I_am_10_squirrels@beehaw.org 2 points 11 months ago

I've seen that in some German places as well

[-] zout@kbin.social 4 points 11 months ago

All German places I've seen, this seems to be a national thing.

[-] 1stq@kbin.social 6 points 11 months ago

@zout No. Green, Yellow, Red, Red+Yellow, Green...
There. Are. Four. Phases.
After Yellow always comes Red. (At least in Germany)

[-] zout@kbin.social 3 points 11 months ago

Never noticed this, will look out for this next time I cross the border.

[-] uis@lemmy.world 1 points 11 months ago

In some biggest country traffic lights FSM looks like this: red->red+yellow->green->blinking green->yellow->red, and can transition to blinking yellow from any state.

this post was submitted on 26 Nov 2023
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