rdf-syntax-grammar
mods:
  schema location: http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
  title info:
    title: Use of flashing yellow operations to improve safety at signals with protected-permissive left turn (PPLT) operations
  title info:
    title: Development of left-turn operations guidelines at signalized intersections
  name:
    name part: Yi, Qi
    name part: Ph.D
  name:
    name part: Texas Southern University
    name part: Department of Transportation Studies.
  name:
    name part: Texas
    name part: Department of Transportation.
    name part: Research and Technology Implementation Office.
  name:
    name part: United States
    name part: Federal Highway Administration.
  type of resource: text
  genre: technical report
  origin info:
    place:
      place term: txu
    date issued: 2012
    issuance: monographic
  language:
    language term: eng
  physical description:
    form: remote
    extent: 1 online resource (xi, 147 pages) : illustrations (some color)
  abstract: MUTCD 2009 Edition suggests the use of Flashing Yellow Arrow (FYA) indication in replacement of green ball indication for permissive left-turn signal in presence of separate signal heads. Currently, there is no clear guidance on how to implement flashing yellow operations with PPLT in Texas. The objective of this research project is to develop guidelines for FYA with PPLT operations. To fulfill this goal, the researchers (1) reviewed and synthesized national and peer state practices on FYA PPLT; (2) surveyed traffic engineers and drivers ; (3) deployed FYA PPLT operation at five selected intersections in Texas cities; (4) identified software and hardware issues associated with the deployment of FYA PPLT; and (5) evaluated the safety performance of FYA PPLT based on the historical crash data analysis and field traffic conflict studies. According to the findings of this research, it is recommended that FYA signal indication can be used at most of signals with PPLT operations to improve intersection safety and to comply with the requirements of the MUTCD. However, FYA PPLT operation is not recommended at busy intersections that have high left-turn volumes and opposing volumes, and it should be implemented with great cautions at intersections where lead-lead left-turn phasing is used.
  note: by Yi Qi [and others].
  note: "Published: October 2012."
  note: Electronic resource.
  note: Technical report; Sept. 2009-Aug. 2011.
  note: Performed in cooperation with Texas Dept. of Transportation and Federal Highway Administration for Texas Dept. of Transportation Research and Technology Implementation Office 0-6568
  note: Includes bibliographical references.
  subject:
    geographic code: n-us-tx
  subject:
    topic: Signalized intersections
    geographic: Texas
  subject:
    topic: Left-turn lanes
    geographic: Texas
  subject:
    topic: Yellow interval (Traffic signal cycle)
  related item:
    title info:
      title: Research report (Austin, Tex.) ; 0-6568-1
  identifier: http://itri.tsu.edu/Reports/TxDOT_0-6568-R1.pdf
  record info:
    record content source: DMY
    record creation date: 121123
    record change date: 20150922150806.0
    record identifier: in00002784536