On Wed, 19 Sep 2007 10:37:58 +0100, Tom Anderson
wrote:

Morning all,

The branch line from Hayes and Harlington to Heathrow Airport is being, or
has been, extended to Terminal 5, right?

Correct.

Now, warm-up question, what's that line called? I have a map calling the
tracks 'up airport' and 'down airport', so is it the 'Great Western
airport line'? That sounds absurd clunky. But if i just call it the
Heathrow line, people might think i mean a bit of the Picc. Anyway.

Don't know the name.

So, that line is two-track to Heathrow Central, where it singles down for
the bit to T4. This map i have also shows the extension to T5 as
single-track. Is that true? I have also read that the station box at T5 is
big enough for four tracks and four platforms; even with an eye to
building AirTrack in the future, that seems like overkill for a single
track line. Not to mention that AirTrack and a single-track stretch from
T5 to T123 won't mix well.

I thought the HEX tunnel was dual track but I may be wrong.

The station at T5 is big enough for 6 tracks - 4 for HEX / BAA and two
for LU Piccadilly Line.

Oh, and how are the railway and the Piccadilly line disposed at T5? Will
they be at the same level or what?

They are all on the same level as I understand it. The plan I have seen
certainly shows it that way.

Are there diagrams of this somewhere that i can look at?

Unfortunately the plans of the station I have seen are on our meeting
room wall at Broadway and I'm on my hols at present so I can't really
take you there ;-)

http://www.baa.com/assets/B2CPortal/...il_tunnels.pdf

might help with a bit more info.
--
Paul C


Admits to working for London Underground!