I'm afraid the cat's out of the bag there. Trucks take your stuff from point A to point B, trains take your stuff from point X to point Y none of which is where your stuff is or wants to get to. It's certainly not _impossible_ to transfer cargo twice, it's just that nobody seems to be willing to take such pains unless faced with the barrel of a shotgun, at the very least, as long as they can just use a truck (and that's assuming that there even IS an X somewhere near to A and a Y right next to B...).