Instead, the track zigzags across the face of the mountain via a series of switchbacks. At each sharp turn there is a short spur of dead-end track extending off to the side. At the first turn, an ascending engine pulls onto the spur and waits for the engineers to throw the switch behind it.
方法是先將火車「拉」到右上方的山壁前，停車調轉方向，再將火車以相反方向「推」到左上方，達到爬升。