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                A Performance-Based Highway Geometric Design Process
**Description:**
        This information guide explains a performance-based highway geometric design process in which design is based on the explicit consideration of operational and safety performance measures. Since the publication of the AASHTO Highway Safety Manual (HSM) in 2010, geometric design has become increasingly performance based. The guide discusses how quantitative, performance-based safety analysis fits within a larger performance-based geometric design process.
    
          **Tool Type:**
        Informational Guide
    
    
    
          **Owner Source:**
        organization
    
          **Sponsor/Owner:**
        National Cooperative Highway Research Program (NCHRP)
    
        **Published:**
      2022
    
        **Availability:**
      This information guide is free of charge at the following link:NCHRP 839: A Performance-Based Highway Geometric Design Process
    
          **Disclaimer:**
        This information is disseminated under the sponsorship of the U.S. Department of Transportation in the interest of information exchange. The U.S. Government assumes no liability for the use of the information contained herein. This information does not constitute a standard, specification, or regulation. The U.S. Government does not endorse products or manufacturers. Trademarks or manufacturer's names appear in this information only because they are considered essential to the objective of this publication.
          Any opinions, findings, and conclusions or recommendations, and translations thereof, expressed in this publication are those of the author(s) and do not necessarily reflect the views of the Federal Highway Administration. U.S. DEPARTMENT OF TRANSPORTATION

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