Abstract: A perimeter security barrier 1for restraining a vehicle impacting the barrier from a direction substantially perpendicular thereto is described. The barrier comprises a pair of spaced apart end posts 3, 5 rigidly fixed in the ground and intermediate posts 11a, 11c. . . disposed between the end posts are also fixed in the ground. At least one pair of wire ropes 15c, 15d is supported between the end posts and optionally woven around the intermediate posts, the ropes being secured at each end to respective end posts. Energy absorption means 21 is provided at each end for absorbing energy transmitted by the ropes from the impacting vehicle.

Abstract: A perimeter security barrier (1) for restraining a vehicle impacting the barrier from a direction substantially perpendicular thereto is described. The barrier comprises a pair of spaced apart end posts (3, 5) rigidly fixed in the ground and intermediate posts (11a, 11c) disposed between the end posts are also fixed in the ground. At least one pair of wire ropes (15c, 15d) is supported between the end posts and optionally woven around the intermediate posts, the ropes being secured at each end to respective end posts. Energy absorption means (21) is provided at each end for absorbing energy transmitted by the ropes from the impacting vehicle.

Abstract: A road safety barrier comprising a series of posts rigidly mounted on or in the ground, an anchor body (9) fixed in or on the ground beyond the series of posts, and at least one rope (1-4) which is supported by the posts so as to extend along the series of posts and which has an end portion (8) extending downwards from the last post (6a) of the series towards the anchor body (9). A terminal (19) is fixed on the extremity (8a) of the end portion (8) of the rope. An elongate tie bar 21 has a first end part connected to the anchor body (9) and a second end part releasably connected to the terminal (19) so that the elongate tie bar is in line with the terminal and the end portion (8) of the rope. The tie bar (21) reduces the risk of damage to the terminal (19) in the event of vehicular impact, and is easily replaceable. It also facilitates disengagement of the rope from the anchor body (9) if a vehicle becomes trapped by the end portion (8) of the rope during a collision.

Abstract: A road safety barrier comprising a series of posts rigidly mounted on or in the ground, an anchor body (9) fixed in or on the ground beyond the series of posts, and at least one rope (1-4) which is supported by the posts so as to extend along the series of posts and which has an end portion (8) extending downwards from the last post (6a) of the series towards the anchor body (9). A terminal (19) is fixed on the extremity (8e) of the end portion (8) of the rope. An elongate tie bar 21 has a first end part connected to the anchor body (9) and a second end part releasably connected to the terminal (19) so that the elongate tie bar is in line with the terminal and the end portion (8) of the rope. The tie bar (21) reduces the risk of damage to the terminal (19) in the event of vehicular impact, and is easily replaceable. It also facilitates disengagement of the rope from the anchor body (9) if a vehicle becomes trapped 1o the end portion (8) of the rope during a collision.