No they haven't. North Norfolk was deliberately severed by BR at the level crossing in Sheringham, and the level crossing grubbed out - abolished, gone. That meant that the residual train service to Sheringham could no longer access the splenid station building - other side of the crossing! - so they built a simple platform instead on the BR side of the crossing site - can't remember if there was even a shelter on it. It's still in use, I think. A buffer stop was erected on the stub end of BR's line, and another on on the stub end (a headshunt actually) of NN's line. Then, after years of this stalemate, and a huge erffort both administratively and practically on the ground, the back-to-back buffers were removed and the level crossing was re-instated. It's a while ago, but the work was well documented and videos made, they are on U-tube. The whole town turned out to see the inorgural train pass through. I was very impressed, and of course delighted but I've yet to get over there to see it.