In article ,
Mr Thant wrote:

That's the main entrance to the station. The bit you call the "foyer"
is really just an interchange hall in the current setup, so you
weren't outside yet.

How come you need to go through a gateline to get into it? Wouldn't
the style of optional readers they have at, e.g. Farringdon for
interchanging between tube and national rail work there for some
reason?