Paul Scott wrote:
"Chris" wrote in message
...

24 Crossrail trains an hour leaves little or no room for extra
trains to fit in on the same tracks as Crossrail, so there's
little room for any other way of running slow (non-Crossrail) to
Reading - even if you remove, say, half of those (12) that would
probably terminate at Heathrow. I doubt it would be as many as 12
trains to Heathrow though - I can't see the customer levels for
heathrow needing a train every 5 minutes (12 an hour). So maybe 6
Heathrows and 18 to Maidenhead would be a better assumption? Still
no real room to insert slow Readings in between the CRossrails
after Hayes though.

Your proposals haven't accounted for about half the crossrail
trains not going any further than the turnback sidings at the
'ghost station' at Westbourne Park?

For the westbound peaks, out of 24 tph through central London, 14 will
reverse at Paddington (via Westbourne Park sidings), 4 will go to
Heathrow, and 6 will go west of Hayes on the GWML, of which 2 will
terminate at West Drayton, leaving just 4 to Maidenhead.

Although all Crossrail trains will stop at all stations east of London,
this is not true west of Paddington, particularly off-peak. This is
supposed to be in order to leave paths on the relief lines for FGW
trains to/from Reading and further west.
--
Richard J.
(to e-mail me, swap uk and yon in address)