Investigation of Material Requirements for Highway Guardrail Systems

National Academies of Sciences, Engineering, and Medicine

doi:10.17226/26811

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Investigation of Material Requirements for Highway Guardrail Systems

(2022)

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Manufacturers and hardware suppliers use significant time and resources to provide guardrail materials according to one state agency’s design and material standards, only to start the process all over again to satisfy another state’s specifications. Such inconsistency often leads to increased fabrication costs for hardware suppliers that are ultimately passed along to transportation agencies.

The TRB National Cooperative Highway Research Program's NCHRP Research Report 1020: Investigation of Material Requirements for Highway Guardrail Systems provides a comprehensive review of the various current standards and proposes needed revisions to bring specifications into conformance with current requirements and the state of practice for highway guardrail systems.

Contributor(s): National Academies of Sciences, Engineering, and Medicine; Transportation Research Board; National Cooperative Highway Research Program; Chuck A. Plaxico; Ethan M. Ray

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Suggested Citation

National Academies of Sciences, Engineering, and Medicine. 2022. Investigation of Material Requirements for Highway Guardrail Systems. Washington, DC: The National Academies Press. https://doi.org/10.17226/26811.

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Publication Info

144 pages | 8.5 x 11 | DOI: https://doi.org/10.17226/26811

Chapters		skim
Front Matter	i-viii
Chapter 1 - Introduction	1-2
Chapter 2 - Literature Review	3-37
Chapter 3 - Deficiencies Identified in AASHTO M 180-18	38-38
Chapter 4 - Deficiencies and Proposed Updates to AASHTO M 180-18	39-69
Chapter 5 - Summary and Conclusions	70-76
References	77-79
Appendix A: Proposed AASHTO M 180 Specification Update	80-79
Appendix B: Proposed AASHTO M 180 Specification Update with Redline Strikeout	80-79
Appendix C: Commentary for AASHTO M 180 Updates	80-79
Appendix D: Commentary for AASHTO M 180 Updates with Redline Strikeout	80-80
Appendix E: Components Included in TF13 Hardware Guide Used for W-Beam and Thrie-Beam Hardware Systems	81-86
Appendix F: Survey of Practice	87-111
Appendix G: Review of Mechanical Properties for Corrugated Sheet Steel Used in Guardrail Field Installations	112-138

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