"Clive D. W. Feather" wrote in message ...
In article , TheOneKEA
writes
I've been reading some of the old threads in this newsgroup along with
Clive's Piccadilly Line page (which FINALLY helped me figure out how
the Heathrow loop works), and I was just wondering if there's any news
on what sort of Piccadilly Line services will be run to Heathrow after
Terminal 5 is opened.

Well, the plan *was* that half the trains would continue to run round
the loop, not serving T5, while the other half would run to Terminal 5
and so would miss out T4.

Of course, it could well all have changed by now.

I've been thinking that it would be less confusing if they reversed the
direction that trains go to T4 when T5 opens and the train terminates at T4.
So all trains initially go through T123 then diverge , half going to T4 and
there other half going to T5 so you';d have a simple split on the line
diagram. This would also mean that someone who wanted to go to T4 but ended up
on a T5 train wouldn't have to go all the way back to Hatton Cross. Just my
2ps worth.

B2003