The closure of the suburban entrance has been going on for some time, long
before the closure of the Vicoria line escalator.
I don't see why putting extra gates in helps anyway when everbody is the
funnelled up the ramp onto the concourse.
Given that a lot of people are actually not going to the tube I was
wondering if there is any way people could exit via the service tunnel. I
assume not.


Actually the current closure of the suburban entrance has only been
since the escalator failure. The entrance was closed for a period
before, when the escalators from the Underground ticket hall to the
National Rail concourse were being overhauled and this happened both
morning and evening; there was a one-way system with the surburban
route used for exit from the Underground and the concourse escalator
used for entrance. The entrance then reopened until the Victoria line
escalator failed earlier this year. If the slope can cope with the
suburban passengers as well as everyone from the Underground, I don't
think it is the bottleneck you seem to think it is.

I suggest you look at where the crowds actually are; there are
insufficient gates with people 10 deep if even one train has arrived.
The gates are supposed to be kept open during the morning peak such is
the number of people trying to get through. Once people get through
the gates, there is not much congestion up the slope and only then if
someone stops moving.