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Old September 22nd 15, 07:44 PM posted to uk.transport.london
Richard[_3_] Richard[_3_] is offline
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First recorded activity at LondonBanter: Sep 2015
Posts: 58
Default Northern line signals

On Thu, 17 Sep 2015 15:15:59 +0000 (UTC), y wrote:

On Thu, 17 Sep 2015 14:47:04 +0100
" wrote:
On 17.09.15 13:35,
y wrote:
On Thu, 17 Sep 2015 13:29:28 +0100
" wrote:
On 17.09.15 9:35,
y wrote:
On Wed, 16 Sep 2015 22:44:59 +0100
"Clive D. W. Feather" wrote:
In message ,
y wrote:
Besides which if the train is on ATO what the driver thinks is
irrelevant because the train will just sail past anyway.

On LU, if a train passes a red signal on ATO the driver is required to
put the train into an emergency stop.

Signals intended only to be passed by trains on ATO show white.

Yes. Except if they were off they wouldn't be showing any aspect anyway

would
they.

And any driver worth his salt would would stop the train, call up his
control centre and ask WTF, ATO or not, in the case of a dark signal

So a driver that had been told "Right lads, we're running on ATO now, all
the signals are switched off, you follow the computer in the cab" will stop

as
soon as he sees an off signal?


I assume that you are referring to any dark signal? The term "Off"
refers to a signal with any aspect other than danger.


"Off" as in the standard english term for something electric that has no
power supply.


It might be a strange term, no doubt something to do with pulling
levers. I rather like the French (and HS1 I think) "closed" for a
signal at danger and "open" for anything else. I think
misunderstanding while only *talking* about the subject underlines the
need for rules in the real thing.

Richard.