Details are given of an analytic study (in terms of volume, capacity and accidents) of a 6-lane section of Union Avenue, a major arterial in Memphis, which confirms that this traffic operations technique has a high potential to increase a facility's capacity. The study procedure involved obtaining traffic volume information on the actual traffic volumes accommodated by the facility, obtaining data to calculate capacity at each of the 12 signalized intersections in the study section, and reviewing accident records to determine characteristics on the facility. Details of traffic volume counts and capacity and level of service are detailed. The actual traffic volumes were compared with the calculated service volume, and a means for correcting accident problems was studied. The most common type of accident related to the reversible operation, is that of the left turn type. Positive action could be taken by signing these lanes to prohibit left turns during the peak period. Confusion between lane control markers and traffic signals at intersections contributed to at least a small number of accidents. In reversible lane facilities, such markers should be located so that horizontal and vertical curvature are not in the drivers same line of sight as traffic signals, but far enough from intersections so that they cannot be confused with traffic signal indications.

  • Corporate Authors:

    Institute of Traffic Engineers

    2029 K Street, NW
    Washington, DC    20006
  • Authors:
    • Upchurch, J E
  • Publication Date: 1975-12

Media Info

  • Features: Figures; References; Tables;
  • Pagination: p. 11-14
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 00134029
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Jun 9 1976 12:00AM