CALIBRATION OF MODAL SPLIT MODELS

The details are given of the formulation and calibration of modal split models (which may be used to predict the proportions of travellers who will use each of a given set of modes for given journeys (in the urban transportation context) in an effort to set these models on a sound logical and statistical basis, so that the effect of any necessary assumptions can clearly be seen. The paper discusses the hypotheses of traveller behavior which enable the setting up of modal choice models, and describes the techniques for validating the hypotheses and estimating the parameters of the models. The application of these models to urban transportation planning is outlined. The paper also indicates how the modelling and calibration techniques can be extended to other aspects of the planning process such as trip distribution and route choice.

• Supplemental Notes:
  • This paper appears in "Urban Traffic Models", which is a publication containing the Proceedings of Seminar N of the Summer Annual Meeting at University of Warwick, England during July, 1975.
• Corporate Authors:

  Planning and Transport Res and Computation Co Ltd

  167 Oxford Street
  London W1R 1AH,   England 
• Authors:
  • DALY, A J
  • Zachary, S
• Publication Date: 1975-7

Media Info

• Features: References;
• Pagination: p. 236-245
• Serial:
  • Publication of: IRCOBI SECRETARIAT
  • Publisher: IRCOBI (International Research Council on the Biokinetics of Impacts)

Subject/Index Terms

• TRT Terms: Calibration; Mathematical models; Modal split; Transportation planning; Travel patterns; Trip distribution; Urban transportation
• Uncontrolled Terms: Models
• Subject Areas: Highways; Operations and Traffic Management; Planning and Forecasting; Public Transportation;

Filing Info

• Accession Number: 00148100
• Record Type: Publication
• Report/Paper Numbers: P122
• Files: TRIS
• Created Date: Feb 23 1981 12:00AM