Abstract: A track superstructure for a railway on a subgrade inclined transversely to the length thereof, comprises a ballast structure of individual ballast stones, and sleepers embedded in the ballast structure, on which rails may be mounted, the ballast structure comprising load dissipation regions beneath the sleepers, the regions receiving loads acting vertically on the ballast structure via the sleepers when a train rides on the rails and transferring these loads to the subgrade below the ballast structure. This transfer is characterized in that substantially only the voids between the ballast stones within the load dissipation regions of the ballast structure are filled with a foam material, especially a PU polyurethane foam material, for fixing the ballast stones in a stable position, and an elastic drain layer is arranged between the ballast structure and the subgrade.

Abstract: The rail sleeper (10) is provided with a sleeper body (12) comprising one rail contact area (16) on each of the opposing ends thereof, within which the sleeper body (12) is widened. A rail (24) may be fixed in each rail contact area (16) by means of a hold-down element (28) able to grip a rail foot. Each rail contact area (16) comprises three rail contact surfaces (18) adjacent to one another in the extension of the rail (24). At least one hold-down element (28) is disposed between and above at least one partial region of respective adjacent rail contact surfaces (18) of each rail contact area (16). The sleeper body (12) is free of reinforcement elements within each rail contact area (16) on both sides of the intermediate spaces between adjacent rail contact surfaces (18).

Abstract: A track superstructure for a railway on a subgrade (12) inclined transversely to the length thereof, comprises a ballast structure (16) of individual ballast stones (18), and sleepers (20) embedded in the ballast structure, on which rails (24) may be mounted, the ballast structure (16) comprising load dissipation regions (26) beneath the sleepers (20), said regions receiving loads acting vertically on the ballast structure (16) via said sleepers (20) when a train rides on the rails (24) and transferring these loads to the subgrade (12) below the ballast structure (16). This transfer is characterized in that substantially only the voids between the ballast stones (18) within the load dissipation regions (26) of the ballast structure (16) are filled with a foam material (28), especially a PU foam material, for fixing the ballast stones (18) in a stable position, and an elastic drain layer (14) is arranged between the ballast structure (16) and the subgrade (12).