AGGREGATION IN TRANSPORTATION PLANNING: NETWORKS, ZONES AND TRANSPORTATION MODELS

If we consider traffic networks, zones, transportation models and their associated interactions as a system, then aggregation can be viewed as a technique for simplifying this system, subject to certain consistency requirements. In this paper, a number of invariance criteria are defined and tested. A series of aggregations along links, routes and zones are incorporated within a combined trip-distribution/traffic-assignment model. The solution to the various problems of aggregation discussed in this paper is shown to lie in the use of a generalised cost function with appropriate weights which is developed in a form which provides a one-to-one correspondence with each aggregation step.(a) (TRRL)

  • Supplemental Notes:
    • D
  • Corporate Authors:

    Woodhead-Faulkner Publishers, Limited

    8 Market Passage
    Cambridge,   England 
  • Publication Date: 1980

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Filing Info

  • Accession Number: 00319214
  • Record Type: Publication
  • Source Agency: Transport Research Laboratory
  • Files: ITRD, TRIS
  • Created Date: Feb 6 1981 12:00AM