It's been a while since I visited, but some thoughts:
Travel Centre: There is/was(?) a 'travel centre' to the right of the main entrance to purchase tickets for future travel. I think it's now closed. Could this be reopened, or even reopened fitted with machines at busy times, or is it closed because of the building of the new ticket hall?
Side Gates (by platform 3, and 6(?)): Could be opened/manned exit-only at busy times.
Telephone by Maze Queue: Total waste of space. Install 2-3 card-only machines along this wall.
Outside: Install card-only machines outside, by the travel centre, or somewhere. Indeed, anywhere.
Travel Centre: There is/was(?) a 'travel centre' to the right of the main entrance to purchase tickets for future travel. I think it's now closed. Could this be reopened, or even reopened fitted with machines at busy times, or is it closed because of the building of the new ticket hall?
Side Gates (by platform 3, and 6(?)): Could be opened/manned exit-only at busy times.
Telephone by Maze Queue: Total waste of space. Install 2-3 card-only machines along this wall.
Outside: Install card-only machines outside, by the travel centre, or somewhere. Indeed, anywhere.