this post was submitted on 05 Jun 2025
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same way we do with lights now, design them attractively. It is not always successful and that's on the manufacturers.
what about it is confusing? green = not coming at you so it's okay to turn left (or whatever).
This wouldn’t really be helpful to those who are colorblind.
Somebody better tell traffic light designers
Red is always on top (at least in Europe) so even color blind people know what the signal is.
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
okay, pick a different color then. it's a solvable problem.
It's not that easy I think (and you had by far the best idea in this thread now).
Can't make them red or orange, they'd be just turn signals.
Can't make them green, that wouldn't work for color blind people, and since you actually need the color for understanding what signal you get (unlike traffic lights) you actually have to make it work
And arguably you can't really make them white, because you can't see a white blinking light inside a headlight and couldn't differentiate it from the back light. Same with light blue.
Which leaves darker shades of blue, which are really hard to see in daylight.