Flared Approach Guardrail Transitions

Report Number(s): TRP-03-439c-25

Description: The flared AGT test installation was approximately 81 ft – 6 in. long and consisted of five main components: (1) a concrete buttress, (2) a thrie-beam AGT, (3) standard MGS, (4) a guardrail anchorage system, and (5) a flared AGT connector plate. Design details for test no. FLAGT-2 are shown in Figures 4 through 31. Photographs of the test installation are shown in Figures 32 through 34. Material specifications, mill certifications, and certificates of conformity for the system materials are shown in Appendix A. Note, the test installation was identical to the one evaluated previously in test no. FLAGT-1 except the posts supporting the nested thrie beam (post nos. 16 through 20).

Test Level: 3

System Type: Guardrail to Concrete

MASH Test Number: 3-21

Proprietary/Non-proprietary: Proprietary

Pass/Fail: Fail

Evaluation: Full-Scale Crash Testing

Sponsor: Midwest Pooled Fund Program