>>1721415How long does it take to do and undo? Even if it was fast enough, it still seems like it would take a long time to do several in a row. In Florida, there was a semi-abandoned spur line (cut from full line) that had cars lined up on every area but crossings, so to get the cars in, they would have to back up a giant train almost to the end, uncouple a few cars, start the train, move it a little bit to clear the crossing, uncouple the next set, restart the train, and so on, until four rows of cars are left, then sometime later come back and do the whole process in reverse.
