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Website | 2013

FHWA Policy Statement. Access to the Interstate System

  • Published by:  Federal Highway Administration (FHWA)

Handbook | 2013

Interstate System Access Informational Guide

  • Authored by:  U.S. Department of Transportation

Research | 2013

A Policy on Design Standards—Interstate System

  • Published by:  American Association of State Highway and Transportation Officials

NCHRP | 2013

NCHRP Report 687: Guidelines for Ramp and Interchange Spacing

  • Published by:  NCHRP
  • Authored by:  Brian Ray
  • Co-authored by:  J. Schoen , P. Jenior , J. Knudsen , R. Porter , J. Leisch , J. Mason , R. Roe