Abstract: A barrier for arresting a vehicle. The barrier includes a net spanning an area through which the vehicle may pass, an anchor coupled to the net, a support arm arranged on one side of the area through which the vehicle may pass, a raising/lowering mechanism for raising and lowering the support arm, and a release mechanism arranged on the support arm, the release mechanism having an upper and a lower protrusion forming an interior space to accommodate a member coupled to the net, and the member and the release mechanism become uncoupled upon application to the net of at least a predetermined threshold force.

Abstract: An energy absorbing system having a stanchion, a linearly extendable energy absorber coupled to the stanchion, a net coupled to the energy absorber, wherein the net transfers force to the energy absorber, and a securing mechanism that maintains tension between the net and the energy absorber until acted upon by tensile forces of at least a minimum threshold force, wherein at least a portion of the system is retractable into the ground.

Abstract: An energy absorbing system. The system includes an energy absorber mechanically coupled to a net, a joint mechanically coupled to an anchor, and a support mechanically coupled to the net via a frangible connector. The frangible connector may uncouple the support from the net upon application of at least a threshold force to the frangible connector. The joint may pivot on a horizontal axis and support the energy absorber at a predetermined angle relative to ground level.