TRAFFIC ASSIGNMENT BY ANALOGY TO ELECTRIC CIRCUIT

Assignment of traffic flow using the analogous current flow in an electric circuit has previously been confined to the simple network in which there exist several alternative routes in parallel. In this paper, however, traffic assignment will be considered on the assumption that the highway network has a single concentrating node and that vehicles which start from every node have a common destination. Current flow on each arc, current generated from each node, voltage of each node for the concentrating node, and the difference of voltages between two nodes correspond to traffic volume on each arc, origin-destination traffic volume, travel time between each node and the common destination, and travel time between the two nodes, respectively. The travel time function which is defined as a relation between traffic flow and its travel time on arcs must be given so as to be a finite time even through the traffic flow approaches to zero. In addition, the passing time through each node is introduced to the travel time function, because the passing time can not be neglected as the nodes correspond to intersections or towns. The flow pattern obtained by this method satisfies the equal travel time principle. Several examples are shown in this paper. /TRRL/

• Supplemental Notes:
  • Transportation and Traffic Theory. Proceedings of the Sixth International Symposium on Transportation and Traffic Theory. University of New South Wales, Sydney, Australia, August 26-28, 1974.
• Corporate Authors:

  Elsevier

  Radarweg 29
  Amsterdam,   Netherlands  1043 NX
• Authors:
  • Sasaki, T
  • Inouyi, H
  • Buckley, D
• Publication Date: 1974

Language

• English

Media Info

• Features: Figures; References;
• Pagination: p. 495-518
• Serial:
  • Publication of: Elsevier Scientific Publishing Company
  • Publisher: Elsevier

Subject/Index Terms

• TRT Terms: Conferences; Correlation analysis; Crashes; Electric circuits; Emergencies; Mathematical models; Matrices (Mathematics); Networks; Origin and destination; Traffic assignment; Traffic control; Traffic flow; Traffic volume; Travel time; Trip length
• Uncontrolled Terms: Transportation networks
• ITRD Terms: 1643: Accident; 6925: Circuit (electr); 8525: Conference; 6527: Correlation (math, stat); 2184: Emergency; 6473: Mathematical model; 6494: Matrix; 687: Origin destination traffic; 654: Traffic control; 671: Traffic flow
• Subject Areas: Data and Information Technology; Highways; Operations and Traffic Management; Planning and Forecasting; Safety and Human Factors; I71: Traffic Theory; I72: Traffic and Transport Planning; I73: Traffic Control;

Filing Info

• Accession Number: 00152923
• Record Type: Publication
• Source Agency: Transport and Road Research Laboratory (TRRL)
• Report/Paper Numbers: Proceeding
• Files: ITRD, TRIS
• Created Date: Jun 17 1977 12:00AM