The slow train into Victoria
 

In the past few months I've noticed that many of the trains coming in
to platforms 9 to 12 at Victoria *crawl* all the way down the platform
before stopping. Anyone know why this is? It can't be some silly
safety issue because they accelerate out of the platforms normally,
and the same trains stopping at other stations - with crowded
platforms - come in quite fast and decelerate just like they always
have.

--
David Cantrell | http://www.cantrell.org.uk/david

The slow train into Victoria
 

In article , David Cantrell
wrote:
In the past few months I've noticed that many of the trains coming in
to platforms 9 to 12 at Victoria *crawl* all the way down the platform
before stopping. Anyone know why this is? It can't be some silly
safety issue because they accelerate out of the platforms normally,
and the same trains stopping at other stations - with crowded
platforms - come in quite fast and decelerate just like they always
have.

Let me suggest something really silly. Is there a beautiful woman working in
a kiosk or suchlike halfway along the platform and the drivers want a good
long look at her? I've known sillier!

Michael Bell

--

The slow train into Victoria
 

On Sun, 16 Jan 2005 00:52:11 +0000, David Cantrell
wrote:

In the past few months I've noticed that many of the trains coming in
to platforms 9 to 12 at Victoria *crawl* all the way down the platform
before stopping. Anyone know why this is? It can't be some silly
safety issue because they accelerate out of the platforms normally,
and the same trains stopping at other stations - with crowded
platforms - come in quite fast and decelerate just like they always
have.

Is it because Victoria is a terminus and if they go in too fast (i.e.
above a crawl) the TPWS system will activate...? This wouldn't happen
when leaving the station and if the "other" stations you refer to are
not termini they wouldn't have the same restrictions..
--

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The slow train into Victoria
 

On Sun, 16 Jan 2005 00:52:11 +0000, David Cantrell
wrote:

In the past few months I've noticed that many of the trains coming in
to platforms 9 to 12 at Victoria *crawl* all the way down the platform
before stopping. Anyone know why this is?

Is it because of the TPWS (a safety system, look for some metal grills
between the rails), which would stop them if they came in any faster
than a crawl? A while ago there were some posters at either Victoria
or Waterloo explaining it. I've heard announcements pleading with
people not to try to open the slam doors, as the train would continue
to crawl rather than stop as might be expected.

--
Arthur Figgis Surrey, UK

The slow train into Victoria
 

On Sun, 16 Jan 2005 00:52:11 +0000, David Cantrell
wrote:

In the past few months I've noticed that many of the trains coming in
to platforms 9 to 12 at Victoria *crawl* all the way down the platform
before stopping. Anyone know why this is? It can't be some silly
safety issue because they accelerate out of the platforms normally,
and the same trains stopping at other stations - with crowded
platforms - come in quite fast and decelerate just like they always
have.

I think it is the Train Protection and Warning System so it is a silly
safety issue as you phrase it. There has been much comment (Roger Ford
in Modern Railways for one) about the very low speeds that the system is
set to in stub terminals. This means trains have to crawl into terminal
platforms at 10mph or less. In some cases it has reduced overall
capacity of the railway because it is so restrictive.
--
Paul C


Admits to working for London Underground!

The slow train into Victoria
 

"Arthur Figgis" ] wrote in message
...

Is it because of the TPWS (a safety system, look for
some metal grills between the rails), which would stop
them if they came in any faster than a crawl? A while
ago there were some posters at either Victoria or
Waterloo explaining it. I've heard announcements
pleading with people not to try to open the slam doors,
as the train would continue to crawl rather than stop
as might be expected.

So has this particular implementation of TPWS made the railway less safe?

--
John Rowland - Spamtrapped
Transport Plans for the London Area, updated 2001
http://www.geocities.com/Athens/Acro...69/tpftla.html
A man's vehicle is a symbol of his manhood.
That's why my vehicle's the Piccadilly Line -
It's the size of a county and it comes every two and a half minutes

The slow train into Victoria
 

John Rowland wrote:
"Arthur Figgis" ] wrote in message
...

Is it because of the TPWS (a safety system, look for
some metal grills between the rails), which would stop
them if they came in any faster than a crawl? A while
ago there were some posters at either Victoria or
Waterloo explaining it. I've heard announcements
pleading with people not to try to open the slam doors,
as the train would continue to crawl rather than stop
as might be expected.

So has this particular implementation of TPWS made the railway less
safe?

It depends on your perspective. There is a school of thought that suggests
such is the case when passengers alighting through slam doors while the
train is still moving can get to the stopping mark before the train.

The slow train into Victoria
 

On Sun, 16 Jan 2005 10:41:55 -0000, "John Rowland"
wrote:

"Arthur Figgis" ] wrote in message
.. .

Is it because of the TPWS (a safety system, look for
some metal grills between the rails), which would stop
them if they came in any faster than a crawl? A while
ago there were some posters at either Victoria or
Waterloo explaining it. I've heard announcements
pleading with people not to try to open the slam doors,
as the train would continue to crawl rather than stop
as might be expected.

So has this particular implementation of TPWS made the railway less safe?

The slam door problem will disapear soon anyway.

TPWS did mean that trains were having to accelerate towards the
buffers to make it all the way into the station.
--
Arthur Figgis Surrey, UK

The slow train into Victoria
 

On Sun, 16 Jan 2005 17:53:30 +0000, Arthur Figgis
] wrote:

On Sun, 16 Jan 2005 10:41:55 -0000, "John Rowland"
wrote:

"Arthur Figgis" ] wrote in message
. ..

Is it because of the TPWS (a safety system, look for
some metal grills between the rails), which would stop
them if they came in any faster than a crawl? A while
ago there were some posters at either Victoria or
Waterloo explaining it. I've heard announcements
pleading with people not to try to open the slam doors,
as the train would continue to crawl rather than stop
as might be expected.

So has this particular implementation of TPWS made the railway less safe?

The slam door problem will disapear soon anyway.

TPWS did mean that trains were having to accelerate towards the
buffers to make it all the way into the station.

TPWS in termini approaching buffer stops, whilct meaning the train
slows down once past the TPWS loops the Driver does tend to apply
power approaching the buffer stops, one thinks this is not a safe
practice as the whole point of the TPWS loops was to ensure the train
is approaching the buffers a safe speed at which it can stop without
hitting the buffers.



Life without sex just isn't life.
Make love not war!

The slow train into Victoria
 

It's hard not to question the effectiveness of TPWS in preventing
buffer stop collisions. It didn't prevent those low speed Pendolino
collisions in Liverpool. Would it prevent a high speed collision,
involving a train coming in at line speed e.g. 70 mph?

IIRC Roger Ford wrote that TPWS was never intended for buffer stop use.
Dominic