Fundamental Diagram on Urban Roads – Myth or Truth?

There is an ongoing discussion about the suitability of fundamental diagrams in urban networks. The authors have argued in favor of such a fundamental diagram, while some researchers deny that there is such a thing like a fundamental diagram on urban roads, since for any level of demand any travel time is possible. This contribution tries to sort this out by referring to new data sources as well as to simulation approaches. The authors hypothesize that in fact there is a fundamental diagram in urban roads, however, there is no one-to-one correspondence to the fundamental diagram on freeways.

• Corporate Authors:

  Transportation Research Board

  500 Fifth Street, NW
  Washington, DC  United States  20001
• Authors:
  • Brockfeld, Elmar
  • Gartner, Nathan H
  • Sohr, Alexander
  • Wagner, Peter
• Conference:
  • Symposium on the Fundamental Diagram: 75 Years (Greenshields 75 Symposium)
  • Location: Woods Hole Massachusetts, United States
  • Date: 2008-7-8 to 2008-7-10
• Publication Date: 2008

Language

• English

Media Info

• Media Type: CD-ROM
• Features: Figures; References;
• Pagination: 5p
• Monograph Title: Symposium on the Fundamental Diagram: 75 Years (Greenshields 75 Symposium), July 8-10, 2008, Woods Hole, MA. Preprints

Subject/Index Terms

• TRT Terms: Freeways; Traffic flow theory; Traffic simulation; Travel demand; Travel time; Urban highways
• Uncontrolled Terms: Fundamental diagram
• Subject Areas: Highways; Operations and Traffic Management; I71: Traffic Theory;

Filing Info

• Accession Number: 01109353
• Record Type: Publication
• Files: TRIS, TRB
• Created Date: Aug 25 2008 8:11AM