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