Bletchleyite
Veteran Member
So I'm guessing the thinking would have been, to allow access to the night tube while the NR station is closed at night. But if so, a much more passenger-friendly solution would have been, to keep both entrances to the escalators: So if you're coming up the escalators out of the tube, you have a choice of turning left into the station concourse or right to go outside.But with both entrances independently lockable, so that at night when the concourse is closed, you have no choice but to turn right and go outside.
The problem with that is that you create congestion and collisions as flows meet from both directions including those exiting (and those who stop as they're confused which way to exit - a bit like you get after the gateline due to the 8-11 exit). It'd have to be either-or.