[the-dude]

It is recent, not everywhere and loosely enforced. But the intent is there.

The situation in A'dam : I guess it is impractical and unwanted to close the corridor from the one end to the other.

[mercer]

In Utrecht they recently closed the main corridor from one end of the station to the other (which, unlike the Amsterdam station, also splits the city in half).

Fortunately, they left a relatively narrow outside corridor open. Still feels odd to have to check in and out again when you're coming from or to some of the main busses, or take a detour.