On Wed, 4 Apr 2012 18:21:42 +0100, "Paul Scott"
wrote:

"Charles Ellson" wrote in message
.. .

... At a most basic level all that is needed is a properly-operating
"out of station" interchange arrangement but that would be greatly
helped if all the people capable of using the interchange were aware
of it...

It will have that already - I believe TfL just need to explain OSIs much
more clearly than they do at the moment.

That would not be enough for the many passengers who would be
unfamiliar with the locality or who would not wish to leave the
perceived safety/comfort of a contained interchange.