I think a railroad speeder or some other type of small maintenance vehicle would be very handy in the game. It could be used to more easily search for route collectables and to simply help learn routes in a more relaxed manner.
Dude, absolutely, I'd love those small features to get around the map without having to use a whole locomotive. It'd be cool aswell to have a work truck or car at the side of each station or something else, if you approach it, you could teleport around different points of the map.