ADOPTION OF RIGHT TURN ON RED: EFFECTS ON CRASHES AT SIGNALIZED INTERSECTIONS

By the end of the 1970's, all states in the U.S. had modified their laws to permit drivers to turn right on steady red at signalized intersections. Police-reported crash data from six states where permissive right turn on red (rtor) laws were adopted during 1974-1977, as well as data from three states where the law in effect was unchanged throughout the period, were used to determine the effect of adopting such laws on the frequency of crashes involving right turn manoeuvres at signalized intersections. The increase in the overall frequency of such crashes in states that adopted permissive right turn on red laws exceeded by more than 20 per cent the comparable change in states that retained the same laws. Larger increases were found in urban areas (25 per cent), and for pedestrian crashes (57 per cent) especially in urban areas (79 per cent). An increase of over 30 per cent was found for child pedestrians, 100 per cent for adults, and 110 per cent for elderly pedestrians after adoption of RTOR. (A) (TRRL)

• Availability:
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• Corporate Authors:

  Pergamon Press, Incorporated

  Headington Hill Hall
  Oxford OX30BW,    
• Authors:
  • Zador, P
  • Moshman, J
  • Marcus, L
• Publication Date: 1982-6

Media Info

• Features: Figures; References; Tables;
• Pagination: p. 219-234
• Serial:
  • Accident Analysis & Prevention
  • Volume: 14
  • Issue Number: 3
  • Publisher: Elsevier
  • ISSN: 0001-4575
  • Serial URL: http://www.sciencedirect.com/science/journal/00014575

Subject/Index Terms

• TRT Terms: Adolescents; Aged; Crash rates; Intersections; Pedestrian vehicle crashes; Pedestrians; Red; Red interval (Traffic signal cycle); Right turn on red; Right turns; Signalized intersections; Traffic regulations; Traffic signals; Urban areas
• Uncontrolled Terms: Increase
• Geographic Terms: United States
• Old TRIS Terms: Minors
• ITRD Terms: 1612: Accident rate; 455: Junction; 1733: Pedestrian; 539: Red light; 1544: Traffic regulations; 565: Traffic signal; 1836: Turning; 313: Urban area; 8122: USA
• Subject Areas: Highways; Law; Operations and Traffic Management; Pedestrians and Bicyclists; Safety and Human Factors; I82: Accidents and Transport Infrastructure;

Filing Info

• Accession Number: 00367537
• Record Type: Publication
• Source Agency: Transport Research Laboratory
• Report/Paper Numbers: HS-033 303
• Files: HSL, ITRD, TRIS
• Created Date: Nov 30 1982 12:00AM