Newark Castle used to have a crossing at the east end, meaning passengers alighting from a train arriving from Nottingham would block that train's departure towards Lincoln. Changed a few years ago so this platform is accessed from the road level crossing.
Metheringham still does (or at least did last time I was there) about two metres in front of a southbound train.
The train has to wait for the passengers to clear the crossing. It's quite unnerving to cross in front of a late driver who seems to be doing some kind of engine revving to get you to hurry up.