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#211
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Blue railway signals?
On Mon, 17 Dec 2018 02:18:53 -0000, Rod Speed wrote:
"Kristy Ogilvie" wrote in message news On Sun, 16 Dec 2018 15:00:21 -0000, Max Demian wrote: On 16/12/2018 13:33, Kristy Ogilvie wrote: On Sun, 16 Dec 2018 12:37:49 -0000, newshound wrote: On 14/12/2018 18:22, Fred Johnson wrote: People with colour blindness shouldn't drive trains (or cars for that matter). And it's not very many, in fact I know of only one person who's colourblind. You may not know *of* many but I bet you know quite a lot. It's about 8% of men, although many of them do not realise that, or discover it until tested later in life. I think you'd notice when you saw all the traffic light bulbs looking identical. You're not safe to drive if you can't tell red from green. I suspect they don't look *identical*, just not as distinct as to someone with normal colour vision. They would use the position to confirm which is which. The only colour blind person I know says red and green look IDENTICAL (presumably in his eyes the red and green receptors are shorted together somehow). They're only different if one is lighter than the other, but then light green and light red are the same, and dark red and dark green are the same, so that might depend on the traffic light design and the position of the sun. Interesting. According to wikipedia, some forms of color blindness cant see red at all so that they can't even see that the red light on a traffic light is lit, it looks like its not lit. Tho they can see green fine, so all they have to do is know that if no lights are visible, it must be showing red. That's no good, because you're very likely not to notice the traffic light is there at all. If I drive past traffic lights that are not operating (say ones still being set up for roadworks), I don't see them at all. I'm only looking for lit lights, as unlit ones are of no consequence. And that Romania does in fact ban the color blind from driving. But the color blind are trying to get that overturned. It would be interesting to see if the number of accidents changes if they did that. |
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#212
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Blue railway signals?
"William Gothberg" "William wrote in message news On Mon, 17 Dec 2018 01:10:52 -0000, Rod Speed wrote: "Kristy Ogilvie" wrote in message news On Sun, 16 Dec 2018 15:39:40 -0000, Steve Walker wrote: On 16/12/2018 15:00, Max Demian wrote: On 16/12/2018 13:33, Kristy Ogilvie wrote: On Sun, 16 Dec 2018 12:37:49 -0000, newshound wrote: On 14/12/2018 18:22, Fred Johnson wrote: People with colour blindness shouldn't drive trains (or cars for that matter). And it's not very many, in fact I know of only one person who's colourblind. You may not know *of* many but I bet you know quite a lot. It's about 8% of men, although many of them do not realise that, or discover it until tested later in life. I think you'd notice when you saw all the traffic light bulbs looking identical. You're not safe to drive if you can't tell red from green. I suspect they don't look *identical*, just not as distinct as to someone with normal colour vision. They would use the position to confirm which is which. Correct. Which is why colour-blindness is not even notifiable to the DVLA. Driving a train is of course totally different as braking needs to be commenced way earlier and the position of the light cannot be determined at that point. I'm not colour blind, and I don't look directly at the traffic lights. I see red or green out of the corner of my eye and act accordingly. If they suddenly became the same or very similar colours, That isnt what happens with most colorblind people. And its never suddenly with any of them, they are born with it. I'd make mistakes regularly. Yes, some colorblind people do, but its normally only with trivial stuff like not being able to pick matching sox or less frequently wearing contrasting colors that don't really go together that only normally sighted people notice. Are you saying a colour blind person already knows to look carefully at things? The microscopic subset of people that can't distinguish between red and green do in fact use which of the column of lights is lit instead of the color. Which means they aren't paying as much attention to the rest of the road in front of them as properly sighted folk do. And they still don't run into anyone or run over anyone. |
#213
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Blue railway signals?
"William Gothberg" "William wrote in message news On Mon, 17 Dec 2018 01:17:39 -0000, % % wrote: On 2018-12-16 6:10 p.m., Rod Speed wrote: "Kristy Ogilvie" wrote in message news On Sun, 16 Dec 2018 15:39:40 -0000, Steve Walker wrote: On 16/12/2018 15:00, Max Demian wrote: On 16/12/2018 13:33, Kristy Ogilvie wrote: On Sun, 16 Dec 2018 12:37:49 -0000, newshound wrote: On 14/12/2018 18:22, Fred Johnson wrote: People with colour blindness shouldn't drive trains (or cars for that matter). And it's not very many, in fact I know of only one person who's colourblind. You may not know *of* many but I bet you know quite a lot. It's about 8% of men, although many of them do not realise that, or discover it until tested later in life. I think you'd notice when you saw all the traffic light bulbs looking identical. You're not safe to drive if you can't tell red from green. I suspect they don't look *identical*, just not as distinct as to someone with normal colour vision. They would use the position to confirm which is which. Correct. Which is why colour-blindness is not even notifiable to the DVLA. Driving a train is of course totally different as braking needs to be commenced way earlier and the position of the light cannot be determined at that point. I'm not colour blind, and I don't look directly at the traffic lights. I see red or green out of the corner of my eye and act accordingly. If they suddenly became the same or very similar colours, That isnt what happens with most colorblind people. And its never suddenly with any of them, they are born with it. I'd make mistakes regularly. Yes, some colorblind people do, but its normally only with trivial stuff like not being able to pick matching sox or less frequently wearing contrasting colors that don't really go together that only normally sighted people notice. Are you saying a colour blind person already knows to look carefully at things? The microscopic subset of people that can't distinguish between red and green do if fact use which of the column of lights is lit instead of the color. I can't think of where else colour and position are that important. The most obvious is with signalling to aircraft in the days before radio communication was used. They used red or green light to indicate whether you were allowed to land or not depending on what else was using the runway. the radio was invented first so that's just stupid , and what did they do in the day time , yell out the plane window , what a freakin jerk nosed pig footed ear grabbing habit face Was that supposed to be English? Nope, canuck. |
#214
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Lonely Psychotic Senile Ozzie Troll Alert! LOL
On Wed, 19 Dec 2018 07:49:19 +1100, cantankerous trolling geezer Rot Speed,
the auto-contradicting senile sociopath, blabbered, again: Was that supposed to be English? Nope, canuck. You two inseparable prize idiots in bed together again? BG -- FredXX to Rot Speed: "You are still an idiot and an embarrassment to your country. No wonder we shippe the likes of you out of the British Isles. Perhaps stupidity and criminality is inherited after all?" Message-ID: |
#215
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Lonely Psychotic Senile Ozzie Troll Alert! LOL
On Wed, 19 Dec 2018 07:48:43 +1100, cantankerous trolling geezer Rot Speed,
the auto-contradicting senile sociopath, blabbered, again: And they still don't run into anyone or run over anyone. And you still can't get the unwashed Scottish ******'s cock out of your toothless senile gob, Rot! BG -- about senile Rot Speed: "This is like having a conversation with someone with brain damage." MID: |
#216
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Blue railway signals?
"William Gothberg" "William wrote in message news On Mon, 17 Dec 2018 02:18:53 -0000, Rod Speed wrote: "Kristy Ogilvie" wrote in message news On Sun, 16 Dec 2018 15:00:21 -0000, Max Demian wrote: On 16/12/2018 13:33, Kristy Ogilvie wrote: On Sun, 16 Dec 2018 12:37:49 -0000, newshound wrote: On 14/12/2018 18:22, Fred Johnson wrote: People with colour blindness shouldn't drive trains (or cars for that matter). And it's not very many, in fact I know of only one person who's colourblind. You may not know *of* many but I bet you know quite a lot. It's about 8% of men, although many of them do not realise that, or discover it until tested later in life. I think you'd notice when you saw all the traffic light bulbs looking identical. You're not safe to drive if you can't tell red from green. I suspect they don't look *identical*, just not as distinct as to someone with normal colour vision. They would use the position to confirm which is which. The only colour blind person I know says red and green look IDENTICAL (presumably in his eyes the red and green receptors are shorted together somehow). They're only different if one is lighter than the other, but then light green and light red are the same, and dark red and dark green are the same, so that might depend on the traffic light design and the position of the sun. Interesting. According to wikipedia, some forms of color blindness cant see red at all so that they can't even see that the red light on a traffic light is lit, it looks like its not lit. Tho they can see green fine, so all they have to do is know that if no lights are visible, it must be showing red. That's no good, because you're very likely not to notice the traffic light is there at all. They stand out like dogs balls and you can usually see the set of lights for the cross road too. If I drive past traffic lights that are not operating (say ones still being set up for roadworks), I don't see them at all. I'm only looking for lit lights, as unlit ones are of no consequence. But you would normally see a whole set of lights. normally 4 for your road and you can usually see at least two for the cross road too. And that Romania does in fact ban the color blind from driving. But the color blind are trying to get that overturned. It would be interesting to see if the number of accidents changes if they did that. Unlikely to change much given that its only about 1% of males that are completely green/red color blind. The one that is 6% of males aren't completely green/red color blind, they are just much less sensitive to green than normal people so that in reduced light situations dark green cars appear to be black. But traffic lights are bright green, not dark green, and bright. https://en.wikipedia.org/wiki/Color_...olor_blindness |
#217
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Blue railway signals?
On Tue, 18 Dec 2018 21:54:42 -0000, Rod Speed wrote:
"William Gothberg" "William wrote in message news On Mon, 17 Dec 2018 02:18:53 -0000, Rod Speed wrote: "Kristy Ogilvie" wrote in message news On Sun, 16 Dec 2018 15:00:21 -0000, Max Demian wrote: On 16/12/2018 13:33, Kristy Ogilvie wrote: On Sun, 16 Dec 2018 12:37:49 -0000, newshound wrote: On 14/12/2018 18:22, Fred Johnson wrote: People with colour blindness shouldn't drive trains (or cars for that matter). And it's not very many, in fact I know of only one person who's colourblind. You may not know *of* many but I bet you know quite a lot. It's about 8% of men, although many of them do not realise that, or discover it until tested later in life. I think you'd notice when you saw all the traffic light bulbs looking identical. You're not safe to drive if you can't tell red from green. I suspect they don't look *identical*, just not as distinct as to someone with normal colour vision. They would use the position to confirm which is which. The only colour blind person I know says red and green look IDENTICAL (presumably in his eyes the red and green receptors are shorted together somehow). They're only different if one is lighter than the other, but then light green and light red are the same, and dark red and dark green are the same, so that might depend on the traffic light design and the position of the sun. Interesting. According to wikipedia, some forms of color blindness cant see red at all so that they can't even see that the red light on a traffic light is lit, it looks like its not lit. Tho they can see green fine, so all they have to do is know that if no lights are visible, it must be showing red. That's no good, because you're very likely not to notice the traffic light is there at all. They stand out like dogs balls and you can usually see the set of lights for the cross road too. They're black, and blend in with all the other ****e the councils put up. I see no reason to look for anything other than lights. If I drive past traffic lights that are not operating (say ones still being set up for roadworks), I don't see them at all. I'm only looking for lit lights, as unlit ones are of no consequence. But you would normally see a whole set of lights. normally 4 for your road and you can usually see at least two for the cross road too. If they're all red and I can't see red, I see no lights. And that Romania does in fact ban the color blind from driving. But the color blind are trying to get that overturned. It would be interesting to see if the number of accidents changes if they did that. Unlikely to change much given that its only about 1% of males that are completely green/red color blind. The one that is 6% of males aren't completely green/red color blind, they are just much less sensitive to green than normal people so that in reduced light situations dark green cars appear to be black. But traffic lights are bright green, not dark green, and bright. https://en.wikipedia.org/wiki/Color_...olor_blindness Then why not just make the 1% banned from driving? |
#218
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Blue railway signals?
"William Gothberg" "William wrote in message news On Tue, 18 Dec 2018 21:54:42 -0000, Rod Speed wrote: "William Gothberg" "William wrote in message news On Mon, 17 Dec 2018 02:18:53 -0000, Rod Speed wrote: "Kristy Ogilvie" wrote in message news On Sun, 16 Dec 2018 15:00:21 -0000, Max Demian wrote: On 16/12/2018 13:33, Kristy Ogilvie wrote: On Sun, 16 Dec 2018 12:37:49 -0000, newshound wrote: On 14/12/2018 18:22, Fred Johnson wrote: People with colour blindness shouldn't drive trains (or cars for that matter). And it's not very many, in fact I know of only one person who's colourblind. You may not know *of* many but I bet you know quite a lot. It's about 8% of men, although many of them do not realise that, or discover it until tested later in life. I think you'd notice when you saw all the traffic light bulbs looking identical. You're not safe to drive if you can't tell red from green. I suspect they don't look *identical*, just not as distinct as to someone with normal colour vision. They would use the position to confirm which is which. The only colour blind person I know says red and green look IDENTICAL (presumably in his eyes the red and green receptors are shorted together somehow). They're only different if one is lighter than the other, but then light green and light red are the same, and dark red and dark green are the same, so that might depend on the traffic light design and the position of the sun. Interesting. According to wikipedia, some forms of color blindness cant see red at all so that they can't even see that the red light on a traffic light is lit, it looks like its not lit. Tho they can see green fine, so all they have to do is know that if no lights are visible, it must be showing red. That's no good, because you're very likely not to notice the traffic light is there at all. They stand out like dogs balls and you can usually see the set of lights for the cross road too. They're black, Yep. and blend in with all the other ****e the councils put up. Nope. I see no reason to look for anything other than lights. No need to look for them, they stand out like dogs balls. If I drive past traffic lights that are not operating (say ones still being set up for roadworks), I don't see them at all. I'm only looking for lit lights, as unlit ones are of no consequence. But you would normally see a whole set of lights. normally 4 for your road and you can usually see at least two for the cross road too. If they're all red They never are for long and even you would notice the other stopped cars even if they were. and I can't see red, I see no lights. If that's actually a problem, presumably they wouldn't pass their driving test. And that Romania does in fact ban the color blind from driving. But the color blind are trying to get that overturned. It would be interesting to see if the number of accidents changes if they did that. Unlikely to change much given that its only about 1% of males that are completely green/red color blind. The one that is 6% of males aren't completely green/red color blind, they are just much less sensitive to green than normal people so that in reduced light situations dark green cars appear to be black. But traffic lights are bright green, not dark green, and bright. https://en.wikipedia.org/wiki/Color_...olor_blindness Then why not just make the 1% banned from driving? Because they clearly do fine in everywhere else where they arent banned or fail to pass their drivers license test. |
#219
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Lonely Psychotic Senile Ozzie Troll Alert! LOL
On Wed, 19 Dec 2018 08:54:42 +1100, cantankerous trolling geezer Rot Speed,
the auto-contradicting senile sociopath, blabbered, again: FLUSH the two prize idiots' abnormal endless drivel unread -- pamela about Rot Speed: "His off the cuff expertise demonstrates how little he knows..." MID: |
#220
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Lonely Psychotic Senile Ozzie Troll Alert! LOL
On Wed, 19 Dec 2018 09:19:20 +1100, cantankerous trolling geezer Rot Speed,
the auto-contradicting senile sociopath, blabbered, again: FLUSH another 123 lines of absolutely idiotic bull**** unread again -- FredXX to Rot Speed: "You are still an idiot and an embarrassment to your country. No wonder we shippe the likes of you out of the British Isles. Perhaps stupidity and criminality is inherited after all?" Message-ID: |
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