Heathrow T4 tube station open again
 

Mizter T wrote:
wrote:

John Rowland wrote:
They are certainly more efficient than you are at updating the name of the
organisation running the Tube ;-)
Ha! Very good. I do get a bit confused, though - Transport for London
is the overall body, isn't it, but then it's subdivided into London
Underground, London Buses etc. Is that right?

Patrick


Yes, that's it. For an outline see "About TfL":
http://www.tfl.gov.uk/tfl/abt_tfl.as

For details of TfL's subsidiaries see:
http://www.tfl.gov.uk/tfl/subsidiaries.asp
(also see the link to an organisational chart on that page)

Although from an internal view, it's somewhat different to what that
organisational chart implies (which just explains how the companies are
related to each other, rather than how TfL actually operates).

Practically, TfL is divided into London Underground, London Rail,
Corporate and Surface Transport (just to make things seem more complicated).

--
Dave Arquati
www.alwaystouchout.com - Transport projects in London

Heathrow T4 tube station open again
 

On 25 Sep 2006 11:48:23 -0700, Mizter T wrote:

The alwaystouchout page confirms that trains will lay over at T4. Given
the through trains going to and coming from the T5 terminus then it
won't be possible for trains to lay over at T123 anymore. It would
indeed therefore seem that T4 loop trains will be less desirable for
those going to T123. The layover period isn't that long but nontheless
I can imagine a train load of passengers anxiously asking staff why
they're stuck at T4 when they want to be at T123.

I don't know much about layovers on the tube, but it seems it would be
preferable if it were kept at T4 for as short a period as possible -
i.e. a quick change of driver (and perhaps a rapid litter blitz) before
the train continued on it's way. Trains could be held at T123 for a
short while to maintain proper service spacing (can't remember the
right term!) on the westbound Piccadilly line.

I think the reason for layovers is more to do with regulating the
timetable, rather than for some procedure to take place. So if a train
has a scheduled 5 minute layover, if it's running up to 5 minutes
late, it can catch up to being on time simply by not waiting.

I suppose one possibility would be for the trains to be advertised as
terminating at T4, and (by implication) going no further. (Line
diagrams in Picc stations could even show T4 as being on a dead-end
branch from Hatton Cross. Then again, this would cause confusion by
being different from what's on the Tube map.)

Heathrow T4 tube station open again
 

On Tue, 26 Sep 2006 03:40:43 +0100, asdf
wrote:

I suppose one possibility would be for the trains to be advertised as
terminating at T4, and (by implication) going no further. (Line
diagrams in Picc stations could even show T4 as being on a dead-end
branch from Hatton Cross. Then again, this would cause confusion by
being different from what's on the Tube map.)

Or they could have trains advertised as terminating at T4 or T5 with
prominent "all trains call at T1,2,3" messages.

--
James Farrar
. @gmail.com

Heathrow T4 tube station open again
 

Clive D. W. Feather wrote:
That's forced by the physical layout:

T5 ---------*-- T123 ---------------* HX ----- London
/ /
| /
\ /
\-------- T4 -------/


Probably a stupid question, but why was the decision taken to construct
the line in that layout, rather than extending the loop so trains would
call HX, T4, T5, T123?

Patrick

Heathrow T4 tube station open again
 

In article .com,
() wrote:

Clive D. W. Feather wrote:
That's forced by the physical layout:

T5 ---------*-- T123 ---------------* HX ----- London
/ /
| /
\ /
\-------- T4 -------/


Probably a stupid question, but why was the decision taken to
construct the line in that layout, rather than extending the loop so
trains would call HX, T4, T5, T123?

Geography? Have you looked where Terminals 4 and 5 actually are?

--
Colin Rosenstiel

Heathrow T4 tube station open again
 

I suppose one possibility would be for the trains to be advertised as
terminating at T4, and (by implication) going no further...

Or they could have trains advertised as terminating at T4 or T5 with
prominent "all trains call at T1,2,3" messages.

Except the ones that don't go to Heathrow at all.
--
Mark Brader "It is always dangerous to send authors to jail.
Toronto This removes their chief excuse for not writing."
-- Arthur C. Clarke

Heathrow T4 tube station open again
 

Mark Brader wrote:

I suppose one possibility would be for the trains to be advertised as
terminating at T4, and (by implication) going no further...

Or they could have trains advertised as terminating at T4 or T5 with
prominent "all trains call at T1,2,3" messages.

Except the ones that don't go to Heathrow at all.

OK, "All HEATHROW trains call at T1,2,3".


--

Stephen

Heathrow T4 tube station open again
 

But that implies that they got to T123, and then to T4, where they
terminate. Which isn't the case.


Stephen Farrow wrote:
Mark Brader wrote:

I suppose one possibility would be for the trains to be advertised as
terminating at T4, and (by implication) going no further...

Or they could have trains advertised as terminating at T4 or T5 with
prominent "all trains call at T1,2,3" messages.

Except the ones that don't go to Heathrow at all.

OK, "All HEATHROW trains call at T1,2,3".


--

Stephen

Heathrow T4 tube station open again
 

On 26 Sep 2006 15:40:03 -0700, SamB wrote:

I suppose one possibility would be for the trains to be advertised as
terminating at T4, and (by implication) going no further...

Or they could have trains advertised as terminating at T4 or T5 with
prominent "all trains call at T1,2,3" messages.

Except the ones that don't go to Heathrow at all.

OK, "All HEATHROW trains call at T1,2,3".

But that implies that they got to T123, and then to T4, where they
terminate. Which isn't the case.

OK, so it'd have to be "T5 via T123" and "T123 via T4". T4-bound
trains with a T5 service following a few minutes behind (close enough
that it will arrive at T123 first) could be shown as "T4 only".

Heathrow T4 tube station open again
 

SamB wrote:
But that implies that they got to T123, and then to T4, where they
terminate. Which isn't the case.

Are you suggesting that under the proposed service pattern all Heathrow
trains *won't* call at T123?



Stephen Farrow wrote:
Mark Brader wrote:

I suppose one possibility would be for the trains to be advertised as
terminating at T4, and (by implication) going no further...
Or they could have trains advertised as terminating at T4 or T5 with
prominent "all trains call at T1,2,3" messages.
Except the ones that don't go to Heathrow at all.
OK, "All HEATHROW trains call at T1,2,3".


--

Stephen



--

Stephen

What is this, an episode of Blossom?