To optimize the traffic on the layout, it was built in many levels using more than 2,500 m (8,200 ft) of rails and 452 switch boxes. The total number of rolling stock is more than 2700, of which 250 are locomotives and 10 are special cleaning trains. The variety of the moving trains is created using two revolver exchangers that store up to 60 trains and dispatch them when needed. On the layout there are also two turntables which can turn the locomotives up to 180 degrees. The largest height difference in the model is 1 m (3 ft 3 in). This is achieved with over 50 m (160 ft) of spiral lifts.