FFU® with a height of 12 cm
Southeast Bavaria Railway has installed these at overpasses of agricultural and other roads.
Near Hanover, sleepers with a height of 12 cm have been installed on a Deutsche Bahn train line carrying 100,000 load tonnes every day.
In Switzerland, the Rhaetian Railway has been installing 12 cm sleepers at agricultural road overpasses and bridges since 2014.
This started after the BAV (Swiss Federal Transportation Office) approved, in January 2014, operational trials on the use of FFU synthetic wood of heights of 12 cm and more, including in tunnels where wooden sleepers are used.
Use in operational trials in Germany and Switzerland up to 22.5 t axle load and 200 km/h design speed.