A force-absorbing barrier 10 includes a plurality of concentric chambers 21, 23, 25 and 27 at least partially filled with fluid 42. The walls 22, 24, 26 and 28 defining the chambers are flexible. Fluid passages 30 in the interior walls 24, 26 and 28 between chambers allow fluid flow between the chambers. The fluid flow from chamber to chamber will absorb energy from the impact a motor vehicle, preventing the vehicle from impacting the terminal of a guardrail.

A traffic safety device placement apparatus that permits the placement of traffic safety devices with reduced labor requirements and increased safety measures. Traffic safety devices can be moved into or out of the roadway without the need for anyone being exposed to traffic and can be placed much more quickly than previously known devices.

A spacer for a road safety barrier is provided. The spacer includes a rail support having a front face to be fastened to a rail, a rear face to be fastened to a post and a flange that connects the front face to the rear face. The front face includes a connector housing and a weaker area connecting the connector housing to the upper edge of the front face, the mechanical resistance of the weaker area being strictly lower than the intrinsic mechanical resistance of the constituent material of the remaining part of the front face of the rail support. The spacer also includes a rail guide including a fastening area for fastening the rail guide to a post above the rail support, a connecting piece and a rail reinforcement area for fastening the rail guide to the reverse side of the rail.

A protection device (5a) for motorcyclists, adapted to be secured to a road safety barrier (1) with a plurality of poles (3) regularly spaced out, the protection device (5a) including a longitudinal beam (6a) and a spacer (7a) extending longitudinally alongside the rear side of at least one part of the beam (6a) and adapted to be secured to the poles, wherein the beam (6a) and the spacer (7a) are assembled together so as to define, in the part of the beam, a longitudinal damping volume (V) with a closed cross-section.

A guardrail system for use along a roadway. The system can include a longitudinal body having one or more longitudinal void spaces formed therein, at least one substantially vertical post connected at one or both ends of the body, and a longitudinal member disposed within any one of the longitudinal void spaces of the body having a crosswise ultimate tensile strength that is at least 20% greater than the crosswise ultimate tensile strength of the longitudinal body.

The present invention provides a spacer for a road safety barrier. The spacer includes a post and a rail connected to the post via an intermediary of the spacer and a connector. The spacer includes a rail support having a front face intended to be fastened to a rail, a rear face intended to be fastened to a post and a flange that connects the front face to the rear face. The front face includes a notch emerging on the upper edge of the front face, the notch includes a connector housing, located in the lower portion of the notch and two convergent lateral edges connecting the connector housing to the upper edge of the front face. The present invention also provides a safety barrier including a spacer and a fabrication kit for a safety barrier.

A crash barrier system includes upper posts, box beams, upper tube profiles and barrier rails. The box beams are connected to the upper posts on a front side of the crash barrier system. The upper tube profiles are connected to the box beams. The barrier rails are fastened to the upper tube profiles. The upper posts are arranged axially parallel to one another at a uniform axial post spacing along the box beams. The upper tube profiles are arranged axially parallel to one another at a uniform axial tube spacing along the box beams. The post spacing differs from the tube spacing.

The guardrail, which may take the form of various types of guardrails, is noteworthy in that it includes an impact detector/indicator, for indicating the location of the guardrail involved in an impact or accident and also for notifying the accident and the place where it occurred to a traffic control station or to public assistance personnel. The detector/indicator includes a convex protective plate (2) attached to the front of the guardrail (1) with which it is used, said plate (2) protecting a connection box (3) and a tube (4) so as together to create a means for detecting and communicating the impact that occurred, also having an indicator light (5) for flagging up the impact, said indicator (5) being positioned on a support plate (6) secured above the protective plate (2).

A guardrail system for use along a roadway. The system can include a longitudinal body having one or more longitudinal void spaces formed therein, at least one substantially vertical post connected at one or both ends of the body, and a longitudinal member disposed within any one of the longitudinal void spaces of the body having a crosswise ultimate tensile strength that is at least 20% greater than the crosswise ultimate tensile strength of the longitudinal body.

A system for illuminating a carriageway in a case of fog includes a road safety barrier arranged along the carriageway, at least one fog density detecting device arranged along the road safety barrier, and a plurality of light sources borne by the road safety barrier, distributed along the road safety barrier, and oriented for each to emit a light beam having a direction that is transversal to an extension axis of the road safety barrier so as to illuminate signage on the carriageway. A control unit that is connected to the light sources and to the fog density detecting device is configured to activate the light sources when the fog density detecting device detects a fog density value of above a threshold value.