Another Power I Want

In my earlier post about powers I want, I was referring to preexisting, traditional types of powers. But now I'm going to talk about a weirder and more unusual power I want. I want to create and control trains. I would want track to appear a couple feet in front of the trains I summon, and disintegrate once the back car had passed. I also want the track to be able to levitate and/or float on water as well as just sitting on the ground. It would be good for running stuff over, transportation, creating a barrier, and lots of other stuff! the possibilities are endless...well maybe not endless, but there are a lot.