SOME GENERAL PROPERTIES OF A TRAFFIC NETWORK

The flow on a given road is the product of concentration and speed. The speed on a given road is represented in the literature by a variety of functions of the flow on that road. This relationship and some of these functions are generalised to network and area equivalents, i.e. generalised from one to two dimensions. A measure of a network's traffic production is defined and related to kinetic energy and mean speed. Kinetic energy is related to Zahavi's alpha. Five different forms are investigated for the relationship between mean speed, traffic intensity and road density. The empirical investigation of these relationships is modest and fairly inconclusive, but it is suggested that these immediate network implications of the more traditional one- dimensional speed - flow relationships might be at least as helpful and meaningful as the alpha concept. (Author/TRRL)

• Record URL:
  • http://arrbknowledge.com
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/00050164
• Corporate Authors:

  ARRB

  Melbourne, Victoria  Australia 
• Authors:
  • Buckley, D J
  • Wardrop, J G
• Publication Date: 1980-3

Media Info

• Features: Figures; References; Tables;
• Pagination: p. 21-31
• Serial:
  • Australian Road Research
  • Volume: 10
  • Issue Number: 1
  • Publisher: ARRB
  • ISSN: 0005-0164

Subject/Index Terms

• TRT Terms: Energy; Evaluation and assessment; Kinetic energy; Mathematical models; Networks; Roads; Size; Speed; Traffic density; Traffic engineering; Traffic flow; Traffic speed
• Uncontrolled Terms: One; Road networks; Transportation networks; Two
• ITRD Terms: 8006: Australia; 224: Cost; 9014: Dimension; 5911: Efficiency; 213: Energy; 9020: Evaluation (assessment); 232: Fuel consumption; 455: Junction; 3847: Maintenance; 6473: Mathematical model; 1054: Network (traffic); 9054: One; 5408: Speed; 673: Traffic concentration; 655: Traffic engineering; 671: Traffic flow; 565: Traffic signal; 9082: Two
• Subject Areas: Energy; Highways; Operations and Traffic Management; I71: Traffic Theory;

Filing Info

• Accession Number: 00324366
• Record Type: Publication
• Source Agency: ARRB
• Files: ITRD, TRIS, ATRI
• Created Date: Sep 16 1981 12:00AM