Motors for a transfer table need to be a slow moving motor of which there are catalogs on line for them. I am planning a power for my snow rotory and most motors go to fast. So I plan to use a slow geared motor in it to run the rotory blade and putting it on a chip I can control the speed and maybe some sound as you may know the blade has a clinking sound as the blade moves at idle sometimes. and also be able to control the lights and wings. At least that is the game plan. For a transfer table slow s the game and it will also help when aligning the tracks. I have not been around one when it is in operation so I don’t know much about possible sounds. If it is electric there may be motors with a electric sound or electric – hydraulic drive. There is always some kind of creak sound here and there as it moves. I’d say slow is the game with a slow geared reversible motor If it is slow then passing the track you want should not be much of an issue. The real ones are not a fast mover as they are designed to carry lots of weight. (at Least the one at the Beech Grove Amtrak yards in Indy looked like it would do). Newman