THE ACCURACY OF TRAFFIC FLOW MODELS - A REVIEW AND PRELIMINARY INVESTIGATION

Many models have been advanced and are being applied to the theory of movements of traffic with varying degrees of success. This paper emphasises the necessity of evaluating the degree of accuracy of such models. An advanced measurement technique is described for stressing the need to consider the data acquisition program and the associated accuracy ranges of the data elements in the selection procedure of a flow model. Two application examples are subjected to sensitivity analyses regarding the flow models: (I) control alternatives to a tunnel; and (II) a freeway simulation model. Both applications are found sensitive to traffic flow input models and, consequently, careful consideration should be given to model choice. In addition, two appropriate generalised flow models are presented for the single- and two-regime approaches and are accompanied with results of extensive data. /Author/TRRL/

  • Availability:
  • Corporate Authors:

    Printerhall Limited

    29 Newmart Street
    London W1P 3PE,   England 
  • Authors:
    • Ceder, Avishai
  • Publication Date: 1978-12

Media Info

Subject/Index Terms

Filing Info

  • Accession Number: 00194433
  • Record Type: Publication
  • Source Agency: Transport Research Laboratory
  • Files: ITRD, TRIS
  • Created Date: Jul 11 1979 12:00AM