Day-to-day dynamic network disequilibria and idealized traveler information systems

Terry L. Friesz, David Bernstein, Nihal J. Mehta, Roger L. Tobin, Saiid Ganjalizadeh

Research output: Contribution to journalArticlepeer-review

343 Scopus citations


In this paper we present tatonnement models for calculating static Wardropian user equilibria on congested networks with fully general demand and cost structures. We present both a qualitative analysis of stability and numerical studies which show that such an approach provides a reliable means for determining static user equilibria. We also describe circumstances for which these models depict day-to-day adjustments from one realizable disequilibrium state to another and how these adjustment processes differ depending on the 'quality' of the information being provided by (abstract) traveler information systems. Specifically, we demonstrate that such dynamic adjustment processes settle down to equilibria both when information is complete and when it is incomplete.

Original languageEnglish (US)
Pages (from-to)1120-1136
Number of pages17
JournalOperations Research
Issue number6
StatePublished - 1994

All Science Journal Classification (ASJC) codes

  • Computer Science Applications
  • Management Science and Operations Research


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