Guardrail, guardrail terminal, and support post designs that improve control of a vehicle during collisions are described. The disclosed designs also reduce the likelihood of intrusion into vehicle systems and the occupant compartment(s). Embodiments include folding and/or flattening of the guardrail and controlling the folded and flattened guardrail to avoid intrusion into the vehicle. Other embodiments include containing the guardrail in an impact head of a guardrail terminal, which also avoids vehicle intrusion.

A pedestrian access terminal is disclosed having a pair of spaced apart terminal blocks that allow pedestrian passage along a roadway. The bottom portions of the terminal blocks are set beneath the surface. A portal extends vertically through each terminal block. Foundation posts are vertically positioned below the surface and extend upward into each portal. Fasteners secure a traffic barrier to each terminal block and foundation post. A tensioning member extends between the foundation posts to increase resistance to lateral movement. Soil plates may be attached to the foundation posts to further resist lateral movement.

A moving energy absorbing component includes an impact head including a base and upright projection. The base includes an axial orifice extending from a downstream entry point to an upstream exit point, through which an upstream terminus of an FTE rail is passed before the FTE rail is directly or indirectly connected to a releasable connection point coupled to a ground anchor. The impact head is connected via at least one beam to a post detacher element located downstream of the impact head a pre-determined distance therefrom.

Guardrail, guardrail terminal, and support post designs that improve control of a vehicle during collisions are described. The disclosed designs also reduce the likelihood of intrusion into vehicle systems and the occupant compartment(s). Embodiments include folding and/or flattening of the guardrail and controlling the folded and flattened guardrail to avoid intrusion into the vehicle. Other embodiments include containing the guardrail in an impact head of a guardrail terminal, which also avoids vehicle intrusion.

Described herein is an impact device that may be slidably coupled to a wire rope barrier terminal end and, in the event of an impact on or about the terminal end by a vehicle, the impact device is configured to slide or advance along the terminal end wire rope(s) towards a wire rope barrier end and away from a terminal end anchor position. In a further embodiment, a method is described of retrofitting existing wire-rope barrier terminal ends with the device. The impact device may simultaneously (at least to some extent) absorb kinetic energy from the impact as well as redirect the direction of impact along the terminal end wire rope(s) towards, and optionally along, the wire rope barrier itself depending on the extent of impact. The sliding action also knocks over any posts in the direction of errant vehicle travel in an impact.

Provided is a terminal for an end portion of a road crash barrier, comprising: a plurality of energy absorbing modules arranged in a linear formation along a longitudinal axis, each module defining a hollow section; and at least two anchors for anchoring the one or more energy absorbing modules, wherein at least one of the energy absorbing modules is supported by a flexible linear member between the at least two anchors.

An energy absorbing apparatus is provided and includes an outer shell having opposed ends, left and right side walls and a hollow core. The shell further includes a plurality of longitudinally spaced apart fold points positioned on the left and right side walls at a height which substantially corresponds to a center of gravity of a road vehicle where the fold points facilitate a controlled folding of the side walls and at least part of the shell, at or around, the fold points, during an end on impact.

An end treatment array for crash attenuation includes a transition barrier module formed of side walls, end walls, a top wall, and a bottom wall, wherein the module walls together define an enclosed interior space. The end treatment array further includes a containment impact sled having an axially extending frame. The frame has a width sufficient to contain the transition barrier module within the frame when in an assembled configuration, and has an axial length which is at least one-half the length of the transition barrier module. The frame defines an interior volume, the purpose of which is to contain a substantial portion of the transition barrier module in the assembled configuration, and to contain debris caused by destruction of the plastic barrier modules in a vehicular impact. The containment impact sled is attached to the transition barrier module.

A moving energy absorbing component includes an impact head including a base and upright projection. The base includes an axial orifice extending from a downstream entry point to an upstream exit point, through which an upstream terminus of an FTE rail is passed before the FTE rail is directly or indirectly connected to a releasable connection point coupled to a ground anchor. The impact head is connected via at least one beam to a post detacher element located downstream of the impact head a pre-determined distance therefrom.

A method for releasing at least one anchor cable from a terminal post in a cable barrier, after an inline impact, including deforming the terminal post from a straight upright configuration to a bent inclined configuration where the deformation creates a suitably sized aperture in the post which enables release of the anchor cable.