The T-31 from Trinity Industries is a proprietary, 31-in.-tall (top of rail) strong-post W-beam system that has been successfully crash-tested to both NCHRP Report 350 TL-3 and the proposed 350 update criteria incorporating a heavier and taller test vehicle. The W-beam attaches directly to steel-yielding line posts (SYLP), eliminating the need for offset blocks that greatly reduces site grading costs since posts can be installed up to 12 in. closer to the roadway. The system can be used in both single-faced and double-faced median applications.
Strong-post W-beam system