GOODNESS-OF-FIT MEASURES FOR PROBABILISTIC TRAVEL DEMAND MODELS

This paper is concerned with the assessment of the goodness-of-fit of nonlinear models of the type currently being used in the development of the disaggregate, behavioral travel demand approach. A little-known statistic, called the correlation ratio, is defined and derived, and is explored as a substitute for the standard measures. In both theoretical and empirical tests, the correlation ratio is found to be a significantly more useful and appropriate measure of goodness-of-fit. Some further properties of the correlation ratio are examined, and the ratio is found to possess some degree of arbitrariness when applied to typical travel demand models. This arbitrariness, however, only impairs the usefulness of the correlation ratio in the absolute assessment of a model, but not for the comparative assessment of two or more models. Finally, a number of research tasks, relating to the correlation ratio, are identified.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/00494488
• Corporate Authors:

  Elsevier

  Radarweg 29
  Amsterdam,   Netherlands  1043 NX
• Authors:
  • Stopher, P R
• Publication Date: 1975-3

Media Info

• Pagination: p. 67-83
• Serial:
  • Transportation (Netherlands)
  • Volume: 4
  • Issue Number: 1
  • Publisher: Martinus Nijhoff Publishers
  • ISSN: 0049-4488

Subject/Index Terms

• TRT Terms: Alternatives analysis; Correlation analysis; Disaggregate analysis; Mathematical models; Nonlinear systems; Ratios; Travel demand
• Uncontrolled Terms: Comparative analysis; Models; Nonlinearity
• Old TRIS Terms: Disaggregate models
• Subject Areas: Administration and Management; Data and Information Technology; Highways;

Filing Info

• Accession Number: 00097655
• Record Type: Publication
• Files: TRIS
• Created Date: Sep 30 1975 12:00AM