A railway trade construction comprises a concrete road bed (1) that is underpinned with respect to a substrate, a series of track slabs (2) seated on the road bed (1) and positioned one after the other as well as rails (4) supported by the track slabs. A separation layer (7) is situated between the road bed (1) and the track slabs (2) . The road bed and the track slabs are stabilised with respect to one another by interlocking shapes that prevent relative movements of the road bed and the track slab along the separation layer transversely with respect to the railway track.