Scottsdale, Arizona allows median breaks only at intervals of 660 feet on arterial streets in order to provide storage length for left turning vehicle queues in both directions. Recently a median break was requested approximately 480 feet south of a major intersection on a 6-lane arterial. The paper describes how a procedure was developed to determine the anticipated left-turn queue at the proposed median break. The length of the left-turn storage lane could then be determined. It would then be possible to determine whether there is adequate distance to allow the left-turn storage lane and thereby the proposed median break. The relationships that need to be established in order to make this determination are described.

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  • Corporate Authors:

    Institute of Transportation Engineers (ITE)

    Washington, DC  United States 
  • Authors:
    • Basha, P E
  • Publication Date: 1992-6

Media Info

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Filing Info

  • Accession Number: 00622551
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Jun 30 1992 12:00AM