EQUILIBRIUM VS SYSTEM - OPTIMAL FLOW: SOME EXAMPLES

The paper is an expository note describing certain facts about flow in a transportation network. The first is that the equilibrium flow does not necessarily minimize total cost, which implies that sometimes it may be advantageous to restrict use of part of a network. The second is that adding a new ARC to the network may increase the total cost at equilibrium (both of these facts have clear implications for network design algorithms, and both may be illustrated with examples much more transparent than the famous example of Braess. The third fact, illustrated by the example of Braess, is that adding a new arc to the network may increase the equilibrium travel cost for each individual user.(a) individual user. (Author/TRRL)

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/09658564
• Corporate Authors:

  Pergamon Press, Incorporated

  Headington Hill Hall
  Oxford OX30BW,    
• Authors:
  • GALER, M
• Publication Date: 1980-4

Media Info

• Features: Figures; References;
• Pagination: p. 81-84
• Serial:
  • Transportation Research Part A: Policy and Practice
  • Volume: 14A
  • Issue Number: 2
  • Publisher: Elsevier
  • ISSN: 0965-8564
  • Serial URL: http://www.sciencedirect.com/science/journal/09658564

Subject/Index Terms

• TRT Terms: Algorithms; Economic analysis; Mathematical models; Network analysis (Planning); Operations; Pavements; Planning; Thickness; Transportation planning; Travel budgets; Travel costs
• Uncontrolled Terms: Pavement thickness
• Old TRIS Terms: Operations planning
• ITRD Terms: 224: Cost; 263: Economics of transport; 6473: Mathematical model; 1054: Network (traffic); 1144: Operations (transp network); 744: Public transport
• Subject Areas: Administration and Management; Data and Information Technology; Economics; Highways; Operations and Traffic Management; Pavements; Planning and Forecasting; Railroads; Safety and Human Factors; I73: Traffic Control; I83: Accidents and the Human Factor;

Filing Info

• Accession Number: 00319069
• Record Type: Publication
• Source Agency: Transport Research Laboratory
• Files: ITRD, TRIS
• Created Date: Sep 16 1980 12:00AM