Influence of Road Layout on Network Fundamental Diagram

The macroscopic fundamental diagram or network fundamental diagram (NFD) describes the relationship between network flow and the number of travelers within a network. The shape of the NFD is important for control purposes such as perimeter control or routing. However, the influence of network structure on NFD shape is unknown. This topic is studied, along with the influence of adding urban arterials (i.e., decreasing homogeneity but adding road capacity) and the effect of arterial location. For this purpose, a tool is developed to create realistic networks with preset characteristics (i.e., road length and road type). The exact network is created at random. Simulation results indicate that networks with similar characteristics have different NFDs. The tool creates networks that have arterials next to urban roads. Simulation results indicate that for these more heterogeneous networks, spread is higher and maximum production is lower in the NFD. The exact location of a major road crossing the network does not have a large effect. Overall, the NFD is network specific and must be calibrated for a particular network.

• Record URL:
  • https://doi.org/10.3141/2421-03
• Summary URL:
  • http://scholar.google.com/scholar_lookup?title=Influence+of+Road+Layout+on+Network+Fundamental+Diagram&author=V.+Knoop&author=D.+De+Jong&author=S.+Hoogendoorn&publication_year=2014
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/isbn/9780309295154
• Authors:
  • Knoop, Victor L
  • De Jong, David
  • Hoogendoorn, Serge
• Publication Date: 2014

Language

• English

Media Info

• Media Type: Print
• Features: Figures; References; Tables;
• Pagination: pp 22–30
• Monograph Title: Traffic Flow Theory and Characteristics 2014, Volume 1
• Serial:
  • Transportation Research Record: Journal of the Transportation Research Board
  • Issue Number: 2421
  • Publisher: Transportation Research Board
  • ISSN: 0361-1981

Subject/Index Terms

• TRT Terms: Arterial highways; Highway design; Mathematical models; Network analysis (Planning); Routes and routing; Traffic flow; Traffic simulation; Travelers; Urban areas
• Uncontrolled Terms: Fundamental diagram
• Subject Areas: Data and Information Technology; Highways; Operations and Traffic Management; Planning and Forecasting; I72: Traffic and Transport Planning; I73: Traffic Control;

Filing Info

• Accession Number: 01516128
• Record Type: Publication
• ISBN: 9780309295154
• Report/Paper Numbers: 14-3702
• Files: TRIS, TRB, ATRI
• Created Date: Feb 27 2014 9:06AM