The Hochtief system consists of a concrete bearing layer over the hydraulically bonded layer (HBL) and it uses concrete-embedded rail support points for rail fastening type 300 (UIC report15, Franz29). Four linking anchors are jiggled into the fresh concrete of the CBL for each individual support. Then each rail support is adjusted using a setting frame for accurate leveling and height adjustment (Mörscher25). The use of steel fiber concrete in segments revealed fissure structures with almost invisible cracking (Franz29). The surface of the concrete bearing layer(CBL) has been designed with inclination to directly drain off the rain water (Mörscher25). The exact dimensions and design characteristics of this system are illustrated in figure 53.