ACCURACY OF TURNING FLOW ESTIMATES AT ROAD JUNCTIONS

An estimation method is described which provides a means of calculating turning flows at intersections where in- and out-flows are known, and turning proportions are determined from a knowledge of turning flows by counts carried out in the past. The study described here assesses the accuracy of the estimation method when applied to a number of intersections in Kuwait. Attention is foucsed on the variation of acuracy with the magnitude of the estimated flows. The results of the study showed that there is a tendency for large flows to be underestimated, while smaller flows are overestimated. This method of estimation based on historical data is capable of providing satisfactory estimates of turning flows at many intersections in Kuwait.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/oclc/8674831
• Authors:
  • Jadaan, K S
• Publication Date: 1989-7

Media Info

• Features: Appendices; Figures; References; Tables;
• Pagination: p. 438-449
• Serial:
  • Journal of Transportation Engineering
  • Volume: 115
  • Issue Number: 4
  • Publisher: American Society of Civil Engineers
  • ISSN: 0733-947X
  • Serial URL: https://ascelibrary.org/journal/jtepbs

Subject/Index Terms

• TRT Terms: Accuracy; Developing countries; Intersections; Traffic control; Traffic flow; Turning traffic
• Subject Areas: Highways; Operations and Traffic Management; I71: Traffic Theory;

Filing Info

• Accession Number: 00486749
• Record Type: Publication
• Files: TRIS, ATRI
• Created Date: Aug 31 1989 12:00AM