THE SAFETY IMPLICATIONS OF SOME CONTROL CHANGES AT URBAN INTERSECTIONS

Injury accident data for a sample of New Zealand urban intersections were analysed. The data were arranged in monthly time series and collected from intersections both where control had changed and control had not changed during the study period. The analysis was designed to isolate the effect on safety of various changes in control from the effect of time trends and individual intersection characteristics. The changes in control considered were changes from give way signs, stop signs and no control to signals and small roundabouts. Signals and roundabouts appeared to reduce accidents at four leg junctions. At three leg junctions roundabouts appeared to reduce accidents while there was no hard evidence of any accident change associated with signals. (Author/TRRL)

• Record URL:
  • http://arrbknowledge.com
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/00050164
• Supplemental Notes:
  • This paper was presented during the 12th Australian Road Research Board Conference, Hobart, Tasmania, 27-31 August 1984.
• Corporate Authors:

  ARRB

  Melbourne, Victoria  Australia 
• Authors:
  • Frith, W J
  • HARTE, D S
• Publication Date: 1984

Media Info

• Features: Figures; References; Tables;
• Pagination: p. 192-205
• Serial:
  • Australian Road Research
  • Volume: 12
  • Issue Number: 5
  • Publisher: ARRB
  • ISSN: 0005-0164

Subject/Index Terms

• TRT Terms: Before and after studies; Conferences; Crash rates; Crashes; Data collection; Injuries; Intersections; Roundabouts; Safety; Signalized intersections; Traffic circles; Traffic control; Traffic crashes; Traffic safety; Traffic signals; Traffic signs; Urban areas
• Uncontrolled Terms: Change; Modifications
• Geographic Terms: New Zealand
• Old TRIS Terms: Controlled intersections
• ITRD Terms: 1643: Accident; 1612: Accident rate; 9148: Before and after study; 8525: Conference; 8623: Data acquisition; 2163: Injury; 455: Junction; 2885: Layout; 6473: Mathematical model; 9048: Modification; 8079: New Zealand; 438: Roundabout; 1665: Safety; 1623: Severity (accid, injury); 654: Traffic control; 553: Traffic sign; 565: Traffic signal; 313: Urban area
• Subject Areas: Highways; Operations and Traffic Management; Safety and Human Factors; I73: Traffic Control;

Filing Info

• Accession Number: 00393472
• Record Type: Publication
• Source Agency: ARRB
• Files: ITRD, TRIS, ATRI
• Created Date: Jul 31 1985 12:00AM