Crash test evaluation of Thrie-beam traffic barriers. Paper presented at the 53rd Annual Meeting of the Highway Research Board HRB, Washington, D.C., January 1974.

The criticality of mounting height over the standard W-beam traffic barrier led to the investigation of different barrier configurations. The authors report on the testing of a triple corrugated beam known as the Thrie-beam, which is 1½ times the width of the W-beam. Findings of the test program indicate that the beam can be mounted to posts of existing systems needing upgrading. Further, the rub rail of median barriers can be eliminated, thus effecting a cost reduction.