TECHNIQUES FOR PRECISE CALIBRATION OF A SMALL AREA TRAFFIC MODEL

The emergence of powerful desktop computers in the last decade has enabled the widespread use of traffic forecasting models to simulate traffic in sub-regions and small cities. Local objectives not considered by regional travel models can be addressed. Methods employed in large-scale regional models are not always appropriate for small area models. This paper describes modeling techniques suitable for small areas, which achieve very high calibration accuracy compared to base-year traffic counts. Examples are taken from the city of Issaquah, Washington, traffic model for which a 97 percent correlation to counts was achieved. Many of the techniques are logical extensions of conventional practice, but some of the ideas presented differ to various degrees and are reported as the result of the author's experimentation.

Language

  • English

Media Info

  • Pagination: 11p

Subject/Index Terms

Filing Info

  • Accession Number: 00711581
  • Record Type: Publication
  • Files: TRIS, TRB, STATEDOT
  • Created Date: Sep 24 1995 12:00AM