On Jan 12, 10:26*pm, Paul Corfield wrote:

Put simply the two halves of Victoria NR are different sides of the OSI.
There are logical journeys that can be made by interchanging between the
South Eastern and South Central parts of the station and 10 minutes is
within the interchange time.

Waterloo Main Line is just one side of the multi sided Waterloo OSI. You
re-entered at the same side so therefore a new journey commenced.

Easy really.

Cheers. I didn't know the Victoria NR gateline was part of an OSI.