On Sun, 27 Apr 2008 22:28:56 +0100, "Peter Masson"
wrote:

I can support that with my experience on the Piccadilly line with a
replacement bus between H&I and Seven Sisters - the tube barriers were
open to exit and enter the stations and no one touched in on the
buses.

I'm not quite sure when the Piccadilly Line served Seven Sisters.

No, neither am I ! Think Victoria, type Piccadilly... (I got the
stations correct though)

Leaving the barriers open is fine for passengers who transfer from tube to
replacement bus then back to tube, but what about passengers who end their
journey at an intermediate station served by the bus?

Two options - touch out before you get on the bus or go into the
destination station. Neither are really acceptable though because you
have to break normal routine to do it.