An anchorless crash cushion apparatus having a plurality of interconnected water-filled crash cushion elements and a non-water filled forward-most cushion element includes vehicle capture structure resisting upward tilting of an impacting vehicle and ramping of the impacting vehicle and stabilizing structure including a midnose structure resisting relative rotation between crash cushion elements in both vertical and lateral planes during vehicle impact.

A crash cushion includes a pair of laterally spaced and longitudinally extending rails. A diaphragm frame is moveably supported by the rails. An outer guide is coupled to the diaphragm frame and is configured to engage an outboard portion of the rail on the impact side respectively during a lateral impact. The outer guide on the impact side is releasable from the outboard portion of the rail. A pair of laterally spaced inner guides are coupled to the diaphragm frame and successively engage and release the inboard portion of the impact side and non-impact side of the rails during an impact of sufficient severity. A flexible panel may be coupled to the impact side of the diaphragm frame. A deformable energy absorbing member is moveably connected to a stationary backup.

A road safety device has a frame firmly connected to and arranged on a road surface and an irreversibly deformable part connected to the frame for absorbing at least part of the kinetic energy of a vehicle impacting against the road safety device. An associated monitoring system includes a control unit, an image acquiring device connected to the control unit for acquiring at least one image of a vehicle registration number that is nearing the road safety device, a memory for acquiring the image, and a vibration and/or deformation sensor connectable to the frame for detecting a reversible deformation thereof. The sensor is connected to the control unit. The control unit is predisposed to identify an impact of a vehicle against the road safety device on the basis of data received from the sensor.

A terminal element (100) of a traffic barrier device (1), having a longitudinal axis and comprising a guide element (10) and an impact element (20). The impact element (20) is pivotally mounted on the guide element (10) about an axis (A) which extends parallel to the longitudinal axis (L).

A crash attenuator system for deployment in front of a fixed structure includes a rail extending along a length of the crash attenuator system and a plurality of diaphragms initially disposed in spaced relation along the length of the rail. Each of the plurality of diaphragms moves along the rail, so that when a front end of the crash attenuator system receives an impact force from a vehicle, a first one of the diaphragms moves rearwardly along the rail and impacts a second one of the diaphragms so that both the first and second diaphragms move further rearwardly along the rail, this process continuing with additional ones of the diaphragms until the impact forces have been fully attenuated. A tearing member on the crash attenuator system engages material forming a tearable member of the crash attenuator system, the tearing member tearing material forming the tearable member to increase attenuation of the impact force.

A rupturable pressure relieving fluid container apparatus for energy absorption and dampening, comprising: an enclosure forming a container, wherein the container has a plurality of orifices displaced at predetermined locations and sizes on the container; a rupture membrane displaced over the plurality of orifices, wherein an interior of the container is substantially water tight; a fluid of a predetermined viscosity and bulk modulus contained within the container; and whereby when a predetermined force acts upon the container and an interior volume decreased to a predetermined volume relative to a quantity of the fluid, the fluid will rupture the rupture membrane and the fluid is able to exit the interior of the container through at least one of the plurality of orifices.

A protective construction, such as a fence for a race track, may include a device for energy dissipation, e.g., in line with a guy wire. In some examples, the energy dissipation device may have a braking profile and a cutting unit having at least one blade that can be pulled through the braking profile along its longitudinal axis.

A highway crash attenuation system having an improved breakaway guardrail post. An improved upper section of Post 1 has an anchor bearing plate with a cooperating stabilizing bolt engaging with the upstream face of the upper post section. The downstream side of the upper post section is provided with split, spaced-apart strut sections which do not obstruct the rear cable pass through notch.

An anchorless crash cushion apparatus having a plurality of interconnected water-filled crash cushion elements and a non-water filled forward-most cushion element includes vehicle capture structure resisting upward tilting of an impacting vehicle and ramping of the impacting vehicle and stabilizing structure resisting relative rotation between the crash cushion elements in both vertical and lateral planes during vehicle impact. A transition weldment is employed to connect the anchorless crash cushion apparatus to a rigid hazard object.

A structural barrier and energy absorbing device comprising a plurality of structural elements is provided. The structural element alone or in a plurality may serve as a traversal impediment or energy absorbing device, such as a pedestrian barrier, vehicular barrier, anti-tank obstacle, ballistic barrier, or the like. The structural element may be a tetrapod such that it comprises an element body having four extension portions that extend outwardly from the interior center to a distal end, such that the structural element maintains an identical orientation and a low center of gravity in each of four resting positions. The structural element may be a solid-state structural element comprised of a particular material or a portable and collapsible structural element wherein the element body comprises an outer skin defining an interior void space, such that during set-up or installation the interior void space may be filled with a filler substance onsite.