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Why Japan has blue traffic lights instead of green

rd.com

61–70 of 268 posts

Re: Why Japan has blue traffic lights instead of green

#61

Earlier quoted context omitted.

AO may not work for you, but OP's link to rd.com doesn't work for me - I'm getting some difficult captchas from cloudflare that don't let me visit that site.

Are you on a VPN or Tor by chance?

No, but:

- Using iOS with Apple's Remote Attestation disabled (quite unusual)

- Roaming from abroad (so I suspect I share exit IP with all other people on my network coming from abroad)

Re: Why Japan has blue traffic lights instead of green

#62
post #38

They speak of this as if it was a Japan-only thing. The blue-green distinction is a late feature of most languages. Even Greek and Latin did not have as clear a distinction as we have today.

How do you come, that they had no distinction between blue and green? The Greek had no word for blue, which is the reason Homer described the sky with different words. But I never heard that the sky was green-isch. While on the other side the Greek had more similarities between green and yellow.

The Greek said the sea was green, for example; so did the Romans.

The Romans did have a word for blue, but it only applied to the sky.

Re: Why Japan has blue traffic lights instead of green

#63

They speak of this as if it was a Japan-only thing. The blue-green distinction is a late feature of most languages. Even Greek and Latin did not have as clear a distinction as we have today.

viridis / caeruleum

but those don't exactly map to what we call green and blue today.

Re: Why Japan has blue traffic lights instead of green

#64
post #5

Color blindness compatible design is, IMO, a very neglected part of the equality debate, in many other fields. This disability has a very skewed gender ratio due to how it works genetically.

Traffic lights are still fine for colour-blind people aren't they? The order of the lights doesn't change.

Almost fifty years ago, I worked with a guy who was color-blind. This was in Colorado, where at the time some of the little towns in the mountains still had traffic lights arranged horizontally rather than vertically. He must have known the order at one time--I think I learned it for my license test--but of course with little chance for reinforcement tended to forget. I suppose that such lights are all gone now.

Re: Why Japan has blue traffic lights instead of green

#65
post #56

Earlier quoted context omitted.

I'm not doubting that multiple languages have that aspect to it, but as far as I know that does not result in blue traffic lights. I have not heard of an instance of a blue traffic light in China to go with your Chinese example.

Because they use 绿, not 青 so it would not result in blue lights But in Korea they have the same confusion: https://www.dreamstime.com/traffic-lights-road-blue-speed-li...

To the best of my knowledge it's different in Korea. As far as I know the call it blue lights but they are green.

Re: Why Japan has blue traffic lights instead of green

#66
post #58
post #29

Not a linguist. I feel like this is just an issue of imperfect correspondence between the word "blue" in English and "ao" in Japanese. The article explains the historical reason why ao encompasses both blue and green, so I think the concept of semantic field comes into play here. As an analogy, a MacBook is a type of laptop, and laptops, desktops and tablets are all IT devices (for lack of a better word). Apple might…

> Now, midori (green) is a type of ao ("grue"), and.. It isn't. TFA is vague on this, but in modern usage "ao" just means blue. There are a bunch of set phrases where it refers to various other cool colors, but to a modern listener "ao" on its own isn't a category including all those colors, it just means blue.

How do you think this happened? By westernization?

Re: Why Japan has blue traffic lights instead of green

#67

They speak of this as if it was a Japan-only thing. The blue-green distinction is a late feature of most languages. Even Greek and Latin did not have as clear a distinction as we have today.

Yeah and they also don't realise that "one word for two colours" is just nonsensical.

All words are descriptions for a continuous range of colours. Oa apparently just covers a particularly huge range. But you could equally say "ha those stupid English people only have one word for lilac and purple. Idiots!"

Re: Why Japan has blue traffic lights instead of green

#68
post #30
post #5

Earlier quoted context omitted.

Traffic lights are still fine for colour-blind people aren't they? The order of the lights doesn't change.

> The order of the lights doesn't change. For 3 lights streetlights no. For 2 lights streetlights it depends. They can be (in DE) either red and yellow or yellow or green.

AFAIK yellow + green is only ever used for turning traffic and is always installed together with a regular 3-bulb traffic light for the other directions. Stand-alone two-bulb traffic lights are always red + yellow, with red on top, just as usual.

Re: Why Japan has blue traffic lights instead of green

#69

Earlier quoted context omitted.

Are you on a VPN or Tor by chance?

No, but: - Using iOS with Apple's Remote Attestation disabled (quite unusual) - Roaming from abroad (so I suspect I share exit IP with all other people on my network coming from abroad)

I am using a perfectly normal domestic IP. If the user agent must be used, it is to detect a Big Tech web engine, namely to switch to the "web app", but if such web engine is not detected, it should have the decency to default to a noscript/basic (x)html portal, if reasonable, of course, aka small tech.

Re: Why Japan has blue traffic lights instead of green

#70
post #8

Color blindness compatible design is, IMO, a very neglected part of the equality debate, in many other fields. This disability has a very skewed gender ratio due to how it works genetically.

I learned this lesson in my first ever public lecture. Approximately 10% of my audience had some form of colour blindness, rendering the majority of my figures incapable of communicating their intent. Since then I have rendered all figures for public consumption in black and white, and lines instead of surfaces where possible.

Android has a colorblind developer option in the settings you can use to quickly check how it might look for others.

I just turn that on, open the camera and look at my color pallete through the camera.

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