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Default Blue railway signals?

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 if 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.
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Default 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.

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Default 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."
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