@claudsch I remember how before the war I had the idea that UZ should run a broad-gauge night train Tallinn–Mockava (LT-PL border), as the railways of the Baltic states were incapable of arranging something like it. I wonder if that would have been OK from a railway regulations point of view? (The situation has improved now, a bit, but could still be much better. Yes, I know, "Once Rail Baltica is built...".)