ACCESSIBILITY, ENTROPY AND THE DISRUPTION AND ASSIGNMENT OF TRAFFIC

The entropy of the trip matrix is used as a broad measure of accessibility within a transportation system. An optimizing model which minimizes average generalized trip cost subject to constraints on the entropy is shown to have the gravity model with exponential separation function as its solution. The relation to entropy-maximizing formulations is discussed. The transportation problem of linear programming and a trivial solution are obtained as limiting cases. Extensions to the combined distribution and assignment problem and a bus problem are pointed out.

• Corporate Authors:

  Pergamon Press, Incorporated

  Maxwell House, Fairview Park
  Elmsford, NY  United States  10523
• Authors:
  • Erlander, S
• Publication Date: 1977-6

Media Info

• Features: Figures; References;
• Pagination: p. 149-153
• Serial:
  • Transportation Research /UK/
  • Volume: 11
  • Issue Number: 3
  • Publisher: Pergamon Press, Incorporated

Subject/Index Terms

• TRT Terms: Accessibility; Bus transportation; Costs; Entropy (Communications); Gravity models; Linear programming; Mathematical models; Traffic assignment; Transportation; Trip distribution
• Uncontrolled Terms: Models; Transportation systems
• Subject Areas: Operations and Traffic Management; Transportation (General);

Filing Info

• Accession Number: 00163635
• Record Type: Publication
• Report/Paper Numbers: Analytic
• Files: TRIS
• Created Date: Oct 29 1977 12:00AM