USE AND EFFECTIVENESS OF DOUBLE LEFT-TURN MOVEMENTS

Double left-turn movements can effectively accommodate large volumes of left-turn traffic. A thorough study of signal timing and phasing needs, intersection and roadway geometrics, signing and marking requirements, etc., must precede and influence the design of double left-turn facilities. No common practice is being used for the type width and pattern of longitudinal markings for double left-turn lanes, and the effect of variances is unknown. The development of national guidelines for double left-turn movements would be helpful. Suggestions are offered to those who would consider the installation of a double left-turn movement.

• Corporate Authors:

  Institute of Traffic Engineers

  2029 K Street, NW
  Washington, DC    20006
• Authors:
  • Foxen, G P
• Publication Date: 1975-7

Media Info

• Pagination: 5 p.
• Serial:
  • Traffic Engineering
  • Volume: 45
  • Issue Number: 7
  • Publisher: Institute of Traffic Engineers

Subject/Index Terms

• TRT Terms: Geometric design; Guidelines; Intersections; Left turns; Road markings; Traffic signal timing; Traffic signs
• Old TRIS Terms: Traffic marking
• Subject Areas: Highways; Operations and Traffic Management;

Filing Info

• Accession Number: 00099704
• Record Type: Publication
• Files: TRIS
• Created Date: Nov 5 1975 12:00AM