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Research And Graphs

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• [ACTIVE] NCHRP Project 22-23 Criteria for Restoration of Longitudinal Barriers

• 2003 In-Service Performance of Traffic Barriers. NCHRP Report 490

• 1999 Crash Test Report: NCHRP Report 350 Test 3-11 of the Strong Wood Post Thrie Beam Guardrail

• 1999 NCHRP Report 350 Test 4-12 of the Modified Thrie Beam Guardrail (TL-4)

• 1997 Guardrail and Median Barrier Crashworthiness: A Synthesis of Highway Practice. NCHRP Synthesis 244

• 1994 Highway Guardrails: Safety Feature or Roadside Hazard? Journal of the Transportation Research Board, No. 1468

• ATSSA Paper: W-Beam Guardrail Reduces the Number and Severity of Run-Off-Road Crashes