The authors proposed a model for determining the width of a separation zone on the traffic separation at converging routes, with or without crossing traffic. The model was based on the distribution of ships' tracks and the average manoeuvre of collision-avoidance at a crossing encounter, which were derived from the statistical analyses of traffic surveys by radar at narrow channels in Japan. According to these analyses, the distribution of ships' tracks was normally distributed and its standard deviation could be expressed by a regression equation of width of the route and traffic volume. The width of the separation zone on the model was determined in order to meet the following two situations for safety navigation: (1) each distribution of ships' paths on converging routes did not overlap each other within three times their standard deviation, (2) the roles of ships in the Collision Regulations became clear between each ship in crossing traffic and traffic using separation schemes. These two situations were theoretically made by the application of random sampling theory.

  • Supplemental Notes:
    • From Man and Navigation, Summaries of the papers presented at the International Congress of the Institutes of Navigation held at the University of Sussex, Falmer, England, 10-14 Sept 1979.
  • Corporate Authors:

    Royal Institute of Navigation, England

    1 Kensington Gore
    London SW7,   England 
  • Authors:
    • Hara, K
    • Kikutani, H
    • Inoue, K
  • Publication Date: 1979

Media Info

  • Pagination: n.p.

Subject/Index Terms

Filing Info

  • Accession Number: 00197083
  • Record Type: Publication
  • Report/Paper Numbers: Conf Paper
  • Files: TRIS
  • Created Date: Sep 29 1979 12:00AM