Vertical member for a vehicle restraint system

A vehicle restraint system, comprising:

• at least one vertical member, wherein the vertical member comprises a profiled support and a reinforcing support arranged in the profiled support, both the profiled support and the reinforcing support being fastened in a substrate, the reinforcing support increasing a moment of resistance of the vertical member, a longitudinal axis of the reinforcing support being arranged substantially parallel to a longitudinal axis of the profiled support, the profiled support forming a substantially rectangular cross-section perpendicular to the longitudinal axis and having two narrow sides and at least one broad side of the substantially rectangular cross-section, the profiled support and the reinforcing support being detachably fastened to one another by a connecting device;
• at least one fastening device arranged on at least one of the narrow sides of the profiled support in an area of the profiled support free of the reinforcing support;
• and
• at least one guard rail fastened to the at least one vertical member by the at least one fastening device;
• wherein the reinforcing support and the profiled support have openings arranged in an aligned manner, and the connecting device passes through both openings;
• wherein the cross-section of the profiled support is an open profile comprising one of a C-profile and a U-profile;
• wherein there is a clearance between the profiled support and the reinforcing support;
• and
• wherein the reinforcing support is fixed in the profiled support by the connecting device.