This paper presents a relatively unique concept for urban arterial highway interchanges. The interchange has been named the Echelon Interchange because of its symmetrical, but offset, pair of two-phase one-way pair intersections - one elevated over the other. It was noted that the interchange resembled a flying formation used by the U.S. Navy Flight Demonstration Team, the "Blue Angels," and called the "echelon" formation. The interchange is viewed as unique because there are no free-flow through-movements. Such an interchange would not be feasible for a freeway facility, where interchanges are most common. Because of the close association between freeways and interchanges, most interchange design concepts feature at least one pair of uninterrupted free-flow movements, and often, several pair of free-flow movements are featured.

  • Supplemental Notes:
    • Full conference proceedings available only on CD. This paper was published as an article in ITE Journal, November, 1999.
  • Corporate Authors:

    Institute of Transportation Engineers (ITE)

    Washington, DC  United States 
  • Authors:
    • Miller, N C
    • Vargas, J E
  • Conference:
  • Publication Date: 1997


  • English

Media Info

  • Features: Figures; Tables;
  • Pagination: n.p.

Subject/Index Terms

Filing Info

  • Accession Number: 00751560
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Jun 30 2002 12:00AM