Thrie-Metal Beam Crash Barrier important attribute is its high level of performance especially for large vehicles. Due to the greater height of the rail face, Thrie-Metal Beam Crash Barrier provides reduced deflection and improved resistance to vehicle vaulting or under running. The reduced dynamic deflection and maintenance demand makes Thrie-Metal Beam Crash Barrier ideally suited for major facilities carrying a high volume of high-speed traffic. Thrie-Metal Beam Crash Barrier should also be used in transition from W-Metal Beam Crash Barrier to more rigid barriers. This significantly reduces the deflection of the barrier system at transition to the rigid barrier.