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TRB’s National Cooperative Highway Research Program (NCHRP) Web-Only Document 198: Sag Vertical Curve Design Criteria for Headlight Sight Distance reviews the current methodologies used in the design of sag vertical curves and changes in headlamp technologies. The report also highlights potential changes to the American Association of State Highway and Transportation Officials (AASHTO) design guide as a result of these reviews.

Suggested Citation

National Academies of Sciences, Engineering, and Medicine. 2013. Sag Vertical Curve Design Criteria for Headlight Sight Distance. Washington, DC: The National Academies Press. https://doi.org/10.17226/22637.

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Publication Info

8.5 x 11 |  DOI: https://doi.org/10.17226/22637

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