Railroad roadway for high speed rail-mounted vehicles

Railroad for rail-mounted vehicles capable of high speed travel comprising at rack grating including longitudinally extending rails and concrete ties extending transversely of and supporting said rails, a poured-in-place steel reinforced concrete slab supporting said track grating with said ties partially embedded in said slab, said slab includes longitudinal steel reinforcements extending in the longitudinal direction of said rails and transverse steel reinforcements extending in the direction of said ties, a continuous concrete substructure supporting said slab and arranged to be supported on a subgrade, and a separating layer located between said slab and said substructure, wherein the improvement comprises that said steel reinforcements are located in a single generally horizontal continuous layer in a plane located below said ties, said ties having a height dimension extending generally vertically with a relatively small portion of the height embedded within said slab, said slab comprises only a plate-like stiffener for said track grating lacking appreciable inherent bending resistance, means for affording displacement resistance in the region of said separating layer between said slab and said substructure, said substructure being dimensioned to absorb bending moments occurring in a longitudinally extending direction of the said rails as a result of a load directed on said rails, said concrete slab is divided in the longitudinal direction of said rails into individual sections with expansion joints extending transversely of said rails and located between adjacent said sections, said displacement resistance means located in each of said sections and in said substructure for preventing displacement of said sections relative to said substructure in the longitudinal and transverse directions of said rails, means in said expansion joints for transmitting forces in the vertical and lateral directions of said expansion joints, said ties have a lower surface facing toward said substructure, reinforcement loops secured within said ties and projecting from the lower surface thereof into said concrete slab for anchoring said ties in said slab, said concrete slab having a lower surface in contact with said substructure and an upper surface intermediate the lower surface and an upper surface of said ties, said concrete slab having an upward dimension between the lower surface thereof and the lower surface of said ties greater than the upward dimension of said concrete slab between the lower surface of said ties and the upper surface of said concrete slab.