This paper reports the results of research undertaken since 1977. The purpose was to confirm the size of the benefits which would be available to a perfect system of route guidance and to determine if it is practical to select optimum routes with an accuracy which is sufficient to ensure that a substantial proportion of the identified wastage could indeed be avoided. The results of a survey of driver inter-urban route choice in Gloucestershire are analyzed, and the results are extrapolated to cover the country as a whole and to show the maximum potential benefit of an improved system in terms of saved national resources. A method for selecting optimum routes is described, that uses a model for estimating journey costs directly from maps. The results of a validation experiment are analyzed to show the confidence with which the model can be used as the basis of a system of improved route guidance. (TRRL)

Media Info

  • Features: Figures; References; Tables;
  • Pagination: p. 123-144
  • Serial:
    • Issue Number: P184

Subject/Index Terms

Filing Info

  • Accession Number: 00325305
  • Record Type: Publication
  • Source Agency: Transport Research Laboratory
  • ISBN: 086050-065-9
  • Report/Paper Numbers: Monograph
  • Files: ITRD, TRIS
  • Created Date: Aug 15 1981 12:00AM