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Technical Note—Traffic Equilibrium Paradoxes

Author

Listed:
  • Stefano Catoni

    (MAIOR: Management, Artificial Intelligence & Operations Research srl., Lucca, Italy)

  • Stefano Pallottino

    (Department of Computer Science, University of Pisa, 40, Corso Italia, I-56125 Pisa, Italy)

Abstract

Paradoxes may occur when different traffic equilibrium models are applied starting from the same data. When in the traffic system “players” of different size are present, a Mixed Behavior Equilibrium can be stated. One should expect, by intuition, that total cost decreases with the reduction of noncooperative players on the network. This assumption does not hold in general. This paper provides numerical examples to show it. The problem of investigating the relationship between different equilibrium models arises when one considers a strategy for rerouting vehicles in road networks, in order to reduce congestion (Route Guidance Systems, for example). The importance of identifying paradoxical situations in such problems is briefly discussed.

Suggested Citation

  • Stefano Catoni & Stefano Pallottino, 1991. "Technical Note—Traffic Equilibrium Paradoxes," Transportation Science, INFORMS, vol. 25(3), pages 240-244, August.
    • Handle: RePEc:inm:ortrsc:v:25:y:1991:i:3:p:240-244
    DOI: 10.1287/trsc.25.3.240
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    Cited by:

    1. Hugo E. Silva & Robin Lindsey & André de Palma & Vincent A. C. van den Berg, 2017. "On the Existence and Uniqueness of Equilibrium in the Bottleneck Model with Atomic Users," Transportation Science, INFORMS, vol. 51(3), pages 863-881, August.
    2. Yao, Jia & Cheng, Ziyi & Chen, Anthony, 2023. "Bibliometric analysis and systematic literature review of the traffic paradoxes (1968–2022)," Transportation Research Part B: Methodological, Elsevier, vol. 177(C).

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