On Tue, 5 Aug 2003 17:26:17 +0100, "Robin Mayes"
wrote:



That's probably not the best example of an illogical interchange.

Good examples:

Bank: Exiting via the Central Line ticket hall to interchange with the
Northern Line and trying to enter via the gates in the Northern Line ticket
hall.


But on what ticket would you get the "illogical interchange" message?
A single would be retained on the exit gate and a travelcard or season
would be allowed to do it anyway.