thanx … I managed to solve it. I defined a line again to passenger train. Train reversed and got back to line .. and then I sent him again to depod.
Some other question…
1. How can I delete savegames? … is possible from the game .. if not .. where are stored on disk?
2. What is good frequency for trains and what for road veichles
3. is better to have more trains or more wagons if trainstations have a lot of passengers?