TRANSPORTATION MODELING: LESSONS FROM THE PAST AND TASKS FOR THE FUTURE

In spite of the recent progress made in household activity analysis and travel budget studies, urban transportation modelling still remains a "not-too-well-developed" research field. There are conflicting theories, analysis units are not uniform, terms are not precisely defined, basic studies of subsystems involved are not completed yet, many models lack behavioural background as well as basic attributes such as: simplicity, sensitivity, compatibility, transferability and forecasting ability. There is an urgent need for simple, yet not primitive, easily applicable urban transportation models which can respond to the technical needs of planners and engineers. Lessons from the past, as well as experiences from other disciplines suggest that future research should concentrate on: (1) new, "unconventional" approaches based on systematic, basic studies of all subsystems involved; (2) proper definition and stratification of an analysis unit; (3) revision and unification of definitions, classifications etc in order to improve the behavioural background of the models; (4) dynamic rather than static approaches, able to describe feedbacks between transportation and land use as well as between transportation demand and supply; (5) interrelations between subsequent submodels, particularly between car availability, trip generation and modal split; (6) developing models which are not only sensitive to transportation policies but also to other local policies (e.g. Land use, city development, social etc). (Author/TRRL)

  • Availability:
  • Supplemental Notes:
    • This paper was presented during the proceedings of Seminar Q held at PTRC's 10th Annual Summer Meeting, Transportation Analysis and Modles, Warwick University, England.
  • Corporate Authors:

    PTRC Education and Research Services Limited

    110 Strand
    London WC2,   England 
  • Authors:
    • Supernak, J
  • Conference:
  • Publication Date: 1982

Media Info

  • Features: References;
  • Pagination: p. 381-390

Subject/Index Terms

Filing Info

  • Accession Number: 00381647
  • Record Type: Publication
  • Source Agency: Transport Research Laboratory
  • ISBN: 0-86050-113-2
  • Report/Paper Numbers: REPORT
  • Files: ITRD, TRIS
  • Created Date: Apr 30 1984 12:00AM