CURVE WARNING SYSTEMS AND THE DELINEATION OF CURVES WITH CURVE DELINEATION DEVICES

This paper describes the evolution of the curve warning system for drivers in the U.S. and contrasts it with the curve warning systems used in some European countries. The paper states and discusses the main requirements of a curve warning and delineation system. Experiments and their results aimed at the determination of the human visual curve radius perception accuracy as a function of the number of delineation devices (chevrons) and the resulting delineation rules are discussed. OCARD (ODOT Computer Aided Road Delineation), a knowledge based software package, running on a MS DOS based PC, for the application and placement of curve delineation devices according to a number of delineation rules, mainly based upon geometric and human factors aspects, is discussed.

Language

  • English

Media Info

  • Features: Figures; References; Tables;
  • Pagination: p. 7-22
  • Serial:
    • VTI Conferens
    • Publisher: Swedish National Road and Transport Research Institute (VTI)
    • ISSN: 0347-6049

Subject/Index Terms

Filing Info

  • Accession Number: 00723342
  • Record Type: Publication
  • Report/Paper Numbers: No. 4A, Part 5
  • Files: TRIS
  • Created Date: Jul 29 1996 12:00AM