A new type of demountable modular panel and its respective assembly process, intended for use on motor sports circuits, particularly on urban circuits. It has the advantage of being easily assembled and disassembled, allowing easy access to any point on the circuit. It can be used on metal barriers or on concrete bases fitted with “U” section metal guides at their ends, into which a metal support profile is inserted. Above the base, a fencing panel is placed, with a top section included at 45°. A tubular metal shaft is introduced vertically through metal connectors and tightly clamped in rectangular retention brackets. The attachment of the panel is reinforced by “L” section metal brackets and respective bolts with washers.

A crash barrier is provided. The crash barrier includes a plurality of supports, a guard rail, and connection parts which are inclined so as to mutually connect the supports and the guard rail at certain intervals, such that an impact energy-absorbing capacity can be improved by preventing impact energy from being directly applied to the supports in a direction orthogonal to the guard rail.

A high-grade post or pile system for the foundation of a solar array, which may facilitate the installation of a solar array rack in more corrosive soils. Such a post may also satisfy the need for a foundation able to resist ground forces, in particular the effects of wind on the exterior of the array, and may reduce problems with beam refusal. The post may be used in other applications such as guardrail posts. In contrast to existing posts for solar arrays, the high-grade post may be formed from higher-grade steel.

An impact attenuator including an impact head, coupled to a first end of an energy absorption body, which energy absorption body is arranged for fixation to an external structure at a second end opposing the first end of the energy absorption body, configured to at least partly absorb or dissipate energy from a collision of an object with the impact head, and including a first part and a second part extending substantially lengthwise behind each other, wherein the first and second part are mutually moveable and including a first and a second cutting edge, wherein, the first cutting edge is arranged for splitting the first part of the energy absorption body upon impact of an object colliding with the impact head, and the second cutting edge is arranged for consecutively splitting the second part of the energy absorption body upon impact of an object colliding with the impact head.

An impact attenuator including an impact head, coupled to a first end of an energy absorption body, which energy absorption body is arranged for fixation to an external structure at a second end opposing the first end of the energy absorption body, configured to at least partly absorb or dissipate energy from a collision of an object with the impact head, and including a first part and a second part extending substantially lengthwise behind each other, wherein the first and second part are mutually moveable and including a first and a second cutting edge, wherein, the first cutting edge is arranged for splitting the first part of the energy absorption body upon impact of an object colliding with the impact head, and the second cutting edge is arranged for consecutively splitting the second part of the energy absorption body upon impact of an object colliding with the impact head.

A highway crash attenuation system having W-beam rail elements attached to a plurality of vertical posts. An impact terminal with a feeder chute guides one or more of the W-beam rail elements through the impact terminal. The feeder chute has an impact shield extending along a traffic-facing side of the chute from an upstream-most end to a downstream-most end of the chute closing the traffic-facing side of the chute. The system also has an anchor cable release mechanism for releasing the cable downstream of the first vertical post and an improved first breakaway post.

The crash cushion includes: a rail installed on the ground surface; a front support that is installed on a front end of the rail and is pushed backward along the rail when a shock is applied to the front support; a rear support installed on a rear end of the rail; and a shock absorber that is installed extending from the front support to the rear support and disposed at a predetermined height from the ground surface. The shock absorber includes a punch and a pipe, and it absorbs shock in such a way that the pipe is expanded in diameter by the punch. The crash cushion is installed on a road and can effectively absorb shock caused by a vehicle collision.

A cover for a concrete parking block has a first lateral end, second lateral end and a longitudinal enclosure. The first lateral end and the second lateral end can be either open or closed. The longitudinal enclosure is the same length as the concrete parking block. The protective cover can be made of high-density polyethylene (HDPE), Thermoplastic polyolefin (TPO), Acrylonitrile Butadiene styrene (ABS) or foam and resin. The protective cover can also be used to as a bicycle stand. In doing so, the bicycle wheels are inserted into V-shaped slots of the longitudinal enclosure. A water bladder is attached to the protective cover when used as a bicycle stand. A reflective coating is applied on the exterior of the protective cover in order to provide more visibility during low light conditions.

A vegetation barrier for use beneath a fence to inhibit the growth of vegetation beneath said fence includes two vegetation barrier members and an intermediate member. Each vegetation barrier member is joinable to a fence post at one end and engages an intermediate member at the opposite end through longitudinally slidable engagement, allowing the vegetation barrier to readily accommodate uneven spacing between fence posts and further allowing the vegetation barrier to expand and contract. The vegetation barrier member and/or the intermediate member may further comprise elongated openings that allow the vegetation barrier to be secured to an underlying surface by a securement member that passes through the elongated opening and into the underlying surface, while still allowing for expansion and contraction of the vegetation barrier. Further provided are methods of covering a surface beneath a fence using said vegetation barrier.

A highway crash attenuation system having W-beam rail elements attached to a plurality of vertical posts. An impact terminal with a feeder chute guides one or more of the W-beam rail elements through the impact terminal. The feeder chute has an impact shield extending along a traffic-facing side of the chute from an upstream-most end to a downstream-most end of the chute closing the traffic-facing side of the chute. The system also has an anchor cable release mechanism for releasing the cable downstream of the first vertical post and an improved first breakaway post.