O-D Matrix Adjustment: Using a Reference Matrix and Multiclass Adjustments

The adjustment of an origin-destination (O-D) matrix with the use of counts is a commonly used method to update or refine an existing O-D matrix. The matrix to be adjusted may be for a regional model or for a sub-area of the region. In this paper, the need to include deviations from the O-D matrix to be adjusted in the method that is used is highlighted. The gradient method for adjusting a single class origin-destination matrix by using observed flows is extended to consider a reference matrix and to adjust simultaneously the O-D matrices for several classes of traffic. The importance of using a reference matrix is demonstrated with computational results that are carried out with two networks originating from practice.

Language

  • English

Media Info

  • Media Type: DVD
  • Features: Figures; References; Tables;
  • Pagination: 18p
  • Monograph Title: TRB 89th Annual Meeting Compendium of Papers DVD

Subject/Index Terms

Filing Info

  • Accession Number: 01155001
  • Record Type: Publication
  • Report/Paper Numbers: 10-0637
  • Files: BTRIS, TRIS, TRB
  • Created Date: Jan 25 2010 10:19AM