Well, i got caught up in Legend of Zelda: Spirit Tracks. There could be 32x32 RailRoad tracks and when you get inside the train, there can be like controls you activate like Whistle, switch from Track to Track on a turn, Speed going Backward, stop, slow and fast. This could be useful in a lot of ways.
Here is a picture of the train, behind Link and Zelda/Phantom.