AASHTO DS-6

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.