Of course if you're REALLY buff for resources, the super train is an insane trick. Three or four locomotives, connected to a train the same length as the tracks. The only thing that really happens is that the loco's move, and push the train around the track. If you want to get on, you stand beside a boarding area, get sucked in and then as the train moves around you'll eventually reach the destination. I'm not sure if it works with electrics, but you'll want as flat a track as possible. That also makes it a lot harder to get hit by the train because it's harder to get onto the tracks.