DEVELOPMENT OF WARRANTS FOR LEFT-TURN LANES

Warrants for the installation of separate left-turn lanes were developed. Literature was reviewed, and policies and practices in other states were surveyed. Accident analyses of locations with and without separate left-turn lanes were conducted. Computer simulation was used to determine the relationship between and among traffic delay and load ship between left-turn accidents and conflicts was investigated. Warrants were developed involving the following three general areas: (1) accident experience, (2) volumes (based on delay), and (3) traffic conflicts. (Author)

• Record URL:
  http://dx.doi.org/10.13023/KTC.RR.1979.526
• Supplemental Notes:
  • Study Title "Development of Warrants for Separate Left-Turn Lanes and Signal Phasing.
• Corporate Authors:

  Kentucky Department of Transportation

  Bureau of Highways
  Frankfort, KY  United States  40601
• Authors:
  • Agent, K R
• Publication Date: 1979-7-6

Media Info

• Features: Appendices; Figures; References; Tables;
• Pagination: 33 p.

Subject/Index Terms

• TRT Terms: Left turn lanes; Load factor; Policy; Reviews; Simulation; Traffic conflicts; Traffic delays; Traffic lanes; Traffic volume; Warrants (Traffic control devices)
• Uncontrolled Terms: Criteria
• Old TRIS Terms: Left lane
• Subject Areas: Highways; Operations and Traffic Management; Policy; I73: Traffic Control;

Filing Info

• Accession Number: 00330624
• Record Type: Publication
• Report/Paper Numbers: Rept. No. 526 Intrm Rpt.
• Contract Numbers: KYP-75-70
• Files: TRIS, STATEDOT
• Created Date: Oct 28 1981 12:00AM