In response to increasing congestion, certain measures have had to be taken to improve the movement of traffic and people: this document describes attempts made at predicting the effects of these measures by giving a generalised explanation of model choice. There is a summary of work done by the unit in this field: this is broken into town-based models and global models. Following this is an outline of the transport model's structure and its applications. The latter examines the period of time for a planning decision distinguishing short, medium and long-term and discusses the different uses of modal split-inputs. Model applications consider policy options, the practical problems of influencing choice, prediction and feedback effects. Simple examples are given using data and using estimates of the variables. Conclusions are also presented. Journey time is evaluated. There is a technical description of the techniques used and a review is included of literature for city wide, zonal and individual models. Material on data and surveys covers survey statistics, the questionnaire and questionnaire design. Analytical techniques and pooled and global model development are discussed, and a large number of tables is added. /TRRL/

  • Corporate Authors:

    Royal Institute of Public Administration

    Local Government Operational Research Unit
    Reading, Berkshire,   England 
  • Authors:
    • Roghrs, K G
    • Townsend, G M
    • METCALF, A E
  • Publication Date: 1970-4

Media Info

  • Features: Figures; References; Tables;
  • Pagination: 97 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00097946
  • Record Type: Publication
  • Source Agency: Transport and Road Research Laboratory (TRRL)
  • Report/Paper Numbers: Report 67 R&D Rpt.
  • Files: ITRD, TRIS
  • Created Date: Aug 27 1975 12:00AM