on at a large angle the impacting vehicle will initiate the controlled fracturing bursting process until the thin wall tubing is bent out of the way or the mandrel disengages from the thin wall tubing and then gate behind the device similarly the impacts on the side of the thin wall tubing 14 near the end of the device cause the thin wall tubing will be bent out of the way allowing the vehicle to gate behind the device thus when struck on the corner either on the end or the side of the cushion the energy absorbing mechanism begins to collapse longitudinally providing lateral resistance as it begins to bend out of the way for impacts into the side of the thin wall tubing downstream of the beginning of length of need the thin wall tubing will act like a barrier and contain and redirect the impacting vehicle an anchoring mechanism will be necessary to resist the tensile forces acting on the tubing to contain and redirect the vehicle note that this requirement of containment and redirection is applicable only for devices that have redirective capability such as a terminal or a redirective crash cushion one particular roadside safety device utilizing the controlled fracture mechanism consists of a few major components as illustrated in fig3 a and 4a thin wall tubing 14 is utilized the tubing may have a circular square or.