The invention relates to an overhead guided-transport track span having a U-shaped cross section, the two arms of which form lateral walls (4, 5) of said track, and the central region of which, connecting the two arms, forms a load-bearing slab (6) of said track, characterised in that said load-bearing slab (6) comprises at least one groove (10, 11) that is provided in said slab longitudinally along said span and is designed to be able to receive a running support (12, 13) of a guided-transport vehicle intended to travel on said track.