Cogwheel railways radiate a unique fascination with their extraordinary combination of mountain landscapes and daring track layouts, featuring numerous bridges and tunnels. The movement of the train is facilitated by a cogwheel engaging with a rack rail located in the center of the track, as the usual friction between wheel and rail is insufficient for the steep gradients. In cogwheel railways of the so-called mixed system, where friction tracks alternate with rack tracks depending on the gradient, the pulling power is exerted by the same machine. In the Alps, there are particularly many private cogwheel railways that are very popular among tourists from all over the world.