Comment by bluGill

You keep it on tracks, either your own private siding, or rent from a railroad. When you want to go you arrang with the railroad to pick it up. Railroads do this all the time - they might or might not own the cars freight is going on either way they drop it off at your siding and pick it up latter. you need to plan a head though to fit their other scheduldes. There are big costs if you are not ready when the train arrives. (that is no asking them to wait while you store groceries)