The regional Highway Traffic Model (RHTM) was commissioned by the UK Department of Transport (DTP) in 1975 to revise the then current DTP procedures for estimating traffic flows on proposed and existing trunk roads. Figures and tables are published in separate volumes. The organisation of the project, its terms of reference and its scope are discussed. Details are given of the background and general framework. The method used to plan and allocate zones in a network are discussed. The surveys used are described in detail together with methods used to establish base years for private and commercial vehicles. Future year private and commercial national matrices are derived. Alternative methods of data extraction and matrix production are evaluated. Methods of monitoring national travel traffic flow and commercial vehicle movement are examined. Details are given of the RHTM databank allowing the model to be used as a predictive mode. The conclusions include comments by the Leitch Committee, an assessment of the project's achievements and recommendations for further action. Three appendices contain DTP requirements for traffic volume appraisal, vehicle classification and base year private vehicle matrices. (TRRL)

  • Corporate Authors:

    Dick (Alastair) and Associates

    24 Gravel Hill
    Leatherhead, Surrey,   England 
  • Publication Date: 1978-9

Media Info

  • Features: Figures; References; Tables;
  • Pagination: 344 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00324376
  • Record Type: Publication
  • Source Agency: Transport Research Laboratory
  • Report/Paper Numbers: Monograph
  • Files: ITRD, TRIS
  • Created Date: Oct 28 1981 12:00AM