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About This Item


Full Description

These standards reflect the minimum standards that apply to Interstate highway segments constructed on new right-of-way and segments undergoing reconstruction along existing right-of-way. These standards, which include changes based on research and practice since the previous 2005 edition, are designed for use with A Policy on Geometric Design of Highways and Streets (the "Green Book"). Design values are presented in both U.S. customary and metric units.

Document History

  1. AASHTO DS-6


    A Policy on Design Standards---Interstate System, 6th Edition

    • Most Recent
  2. AASHTO DS-5

    A Policy on Design Standards---Interstate System, 5th Edition

    • Historical Version