On Fri, 13 May 2011 15:12:42 +0100
"Mizter T" wrote:
No - it would be charged as one through journey - because it's configured as
an OSI, and that's what happens at OSIs - 'closed' journeys are re-opened
when touching in at the second station/gateline, or in this case on the
standalone validators en-route to the Tube platforms. (Am prob up that way
shortly, if so I'll try it out in practice.)

But what happens if someone touches out on the platform and then just leaves
the station?

Anyway , if you do do that journey post the result here because I'm sure my
wife would be interested to know as she does that trip quite often and
she's not a fan of the northern line.

B2003