Statistical Validation of Proportionality Condition in Traffic Assignment

The traditional static traffic assignment method could get the unique total link flows, but could not obtain stable and unique route flows. On the basis of the equilibrium assignment model, by adding a condition of proportionality, a unique solution of route flows could be obtained. The proportionality condition has been fully explored in theory, but lacks empirical study in real world. This paper conducted statistical validation for the proportionality condition by using qualified pairs of route flows from real transportation systems. The statistical validation method was to construct a specific statistic and then use the F-test. Additionally, diagnostic analysis was implemented to estimate the effectiveness of the statistical validation. The empirical study results show that the eligible pairs of actual route flows have a distinct direct proportion relationship at a significance level of 0.05. In summary, the proportionality condition exists in this network to some extent.


  • English

Media Info

  • Media Type: Web
  • Features: References;
  • Pagination: pp 3304-3315
  • Monograph Title: CICTP 2014: Safe, Smart, and Sustainable Multimodal Transportation Systems

Subject/Index Terms

Filing Info

  • Accession Number: 01531442
  • Record Type: Publication
  • ISBN: 9780784413623
  • Files: TRIS, ASCE
  • Created Date: Jul 2 2014 3:04PM