Auto Rail:

This little contraption is a life saver! We recently found a snow area in our world but its waaaaay to far to walk there from the spawn every time. To combat this issue we have built a auto rail that goes from our Koopa Castle all the way out to what I like to call “The Tundra”

Its fully automated too meaning all you have to do is place your mine cart at the edge of the track and press a button. The instant you do this another cart is dropped that was being held up by a door and the force of the two carts propel you at maximum speed to your destination. Then the dropped mine cart is safely returned to its original position so the next guy can use it immediately. Also to combat the possibility of cart collisions in the middle of the track we have made a return track right next to it.