Lane guidance system

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A semitrailer comprising a chassis and at least one vehicle axle with a track guidance system (10) for guiding and stabilizing the vehicle axle along a track, wherein the track guidance system (10) has a Watt linkage arrangement for the relatively movable connection of the vehicle axle to an underside (x) of the chassis, wherein the Watt linkage arrangement has at least two Watt rods (20), which correspond in their guidance direction (F) and are arranged in the transverse direction (Q), wherein the Watt linkage arrangement has a guide element (30) for guiding the vehicle axle along a straight line in the guidance direction (F), characterized in that the Watt rods (20) are secured, by means of their longitudinal ends (22, 24), on the guide element (30) and on the chassis, wherein the guided vehicle axle is a trailer axle (A) of the semitrailer.

(30) is secured on the axle bridge (40), wherein the guide element (30) is arranged substantially centrally on the axle bridge (40).