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In ,
Bob Wood typed:

Now picked up by the BBC site:
http://news.bbc.co.uk/1/hi/uk/4703777.stm

This is being constantly updated - and is now reporting "detonators only"

LT are reporting "Code Amber". All trains being stopped at platforms and
evacuated to ground level.



--
Bob

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Bob Wood wrote:

LT are reporting "Code Amber". All trains being stopped at platforms and
evacuated to ground level.

Just out of interest, how exactly does this work? I can't help feeling
that there are usually more trains on the system than there are
stations, and that therefore some trains get stopped between stations.
Do they detrain people in the tunnel and get them to walk along to a
station? Or do they hold trains in the tunnel until the train ahead has
been emptied and shunted forward?
--
Pat Ricroft, City of Salford, UK
================================

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"Pat Ricroft" wrote in message
oups.com...
Bob Wood wrote:

LT are reporting "Code Amber". All trains being stopped at platforms
and
evacuated to ground level.

Just out of interest, how exactly does this work? I can't help feeling
that there are usually more trains on the system than there are
stations, and that therefore some trains get stopped between stations.
Do they detrain people in the tunnel and get them to walk along to a
station? Or do they hold trains in the tunnel until the train ahead has
been emptied and shunted forward?

If there is a case of more than one train between stations, the first pulls
in, unloads and then pulls forward, either by one car, or fully out of the
platform, enabling the second one to trip past the signals and into the
platform.

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In oups.com,
Pat Ricroft typed:

Bob Wood wrote:

LT are reporting "Code Amber". All trains being stopped at
platforms and evacuated to ground level.

Just out of interest, how exactly does this work? I can't help feeling
that there are usually more trains on the system than there are
stations, and that therefore some trains get stopped between stations.
Do they detrain people in the tunnel and get them to walk along to a
station? Or do they hold trains in the tunnel until the train ahead
has been emptied and shunted forward?

I don't know exactly how it works, but I think that there are more trains
than stations only in your imagination. I am sure that some body will be
along in due course to give us the exact numbers.

I doubt if there would very often be two trains before a pair of stations,
but it's not difficult to imagine that at times there could be a train in a
station when the order to evacuate was given and another one already have
left the station behind. The choice would then be to move the first one
into the tunnel to let the next one arrive - or to evacuate into the
tunnel through end doors (but this couldn't happen while the power is still
on - or to pull the second train up to the back of the first train and to
evacuate through the front end door of the second train into the rear end
door of the first train and then through that car to the platform.




--
Bob

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On Thu, 21 Jul 2005 16:38:16 GMT someone who may be "Bob Wood"
wrote this:-

I think that there are more trains
than stations only in your imagination.

No exact numbers from me. However, I suspect that on certain lines
at certain times there are more trains than stations in the central
area (a term I use in a vague way). That may also be the case
outwith the central area, where the distance between stations is
much greater.


--
David Hansen, Edinburgh | PGP email preferred-key number F566DA0E
I will always explain revoked keys, unless the UK government
prevents me by using the RIP Act 2000.

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In message , Bob Wood
writes

I don't know exactly how it works, but I think that there are more trains
than stations only in your imagination.

I feel sure that the Waterloo and City has more trains than stations
(and probably rather different procedures for evacuation than other
lines).

--
Paul Terry

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On Thu, 21 Jul 2005 18:09:54 +0100, David Hansen
wrote:

On Thu, 21 Jul 2005 16:38:16 GMT someone who may be "Bob Wood"
wrote this:-

I think that there are more trains
than stations only in your imagination.

No exact numbers from me. However, I suspect that on certain lines
at certain times there are more trains than stations in the central
area (a term I use in a vague way). That may also be the case
outwith the central area, where the distance between stations is
much greater.

The Circle Line IME is likely got more trains than stations during the
rush hour due to "intruders" from the Met, District and Hammersmith
and City although the effect will be lessened to some degree when
clearance is required by use of various sidings/extra platforms or
escape routes to other lines. The central parts of the Northern Line
are possibly another candidate for having more trains than platforms
(rather than stations) during the rush hour but I suspect the "excess"
trains (if any) do not amount to more than a few.

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"Bob Wood" wrote in message
...
In oups.com,
Pat Ricroft typed:

Bob Wood wrote:

LT are reporting "Code Amber". All trains being stopped at
platforms and evacuated to ground level.

Just out of interest, how exactly does this work? I can't help feeling
that there are usually more trains on the system than there are
stations, and that therefore some trains get stopped between stations.
Do they detrain people in the tunnel and get them to walk along to a
station? Or do they hold trains in the tunnel until the train ahead
has been emptied and shunted forward?

I don't know exactly how it works, but I think that there are more trains
than stations only in your imagination. I am sure that some body will be
along in due course to give us the exact numbers.

On the Victoria line there are 15 stations or 31 platforms and 37 trains
during the peaks.

Peter Smyth

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"Peter Smyth" wrote in message
...

"Bob Wood" wrote in message
...
In oups.com,
Pat Ricroft typed:

Bob Wood wrote:

LT are reporting "Code Amber". All trains being stopped at
platforms and evacuated to ground level.

Just out of interest, how exactly does this work? I can't help feeling
that there are usually more trains on the system than there are
stations, and that therefore some trains get stopped between stations.
Do they detrain people in the tunnel and get them to walk along to a
station? Or do they hold trains in the tunnel until the train ahead
has been emptied and shunted forward?

I don't know exactly how it works, but I think that there are more trains
than stations only in your imagination. I am sure that some body will be
along in due course to give us the exact numbers.

On the Victoria line there are 15 stations or 31 platforms and 37 trains
during the peaks.

So where are there three platforms (or are you counting one at
Northumberland Road?)

tim

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On the Victoria line there are 15 stations or 31 platforms and 37 trains
during the peaks.

So where are there three platforms (or are you counting one at
Northumberland Road?)

Seven Sisters?