On Mar 18, 10:09 pm, "Recliner" wrote:
How about Ealing Common, where the same platforms serve both Picc and
District stock, or Acton Town where Picc trains frequently use the
District platforms? Or Rayner's Lane to Uxbridge?

Simple - swap the Picc and District services to Uxbridge and Ealing
Broadway.

Except it isn't that simple; it's actually a hoary old chestnut that
has been kicking around the halls of 55 Broadway for quite a while,
and is not likely to be seriously considered until either T5 finally
opens and the Picc services to Uxbridge need to be reduced further to
maintain loadings on the Heathrow branch, or when the S stock arrives
in sufficient numbers to allow Uxbridge to finally be served
adequately in terms of train availability (how an enhanced Uxbridge
service gets through Earl's Court on top of the existing services to
Richmond, Wimbledon and Olympia is a whole 'nother matter!)