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A path-based double projection method for solving the asymmetric traffic network equilibrium problem

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Abstract

In this paper we propose a new iterative method for solving the asymmetric traffic equilibrium problem when formulated as a variational inequality whose variables are the path flows. The path formulation leads to a decomposable structure of the constraints set and allows us to obtain highly accurate solutions. The proposed method is a column generation scheme based on a variant of the Khobotov’s extragradient method for solving variational inequalities. Computational experiments have been carried out on several networks of a medium-large scale. The results obtained are promising and show the applicability of the method for solving large-scale equilibrium problems.

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Authors and Affiliations

  1. Department of Applied Mathematics, University of Pisa, via Bonanno 25/b, 56126, Pisa, Italy

    Barbara Panicucci, Massimo Pappalardo & Mauro Passacantando

Authors
  1. Barbara Panicucci
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  2. Massimo Pappalardo
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  3. Mauro Passacantando
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Corresponding author

Correspondence to Barbara Panicucci.

Additional information

This work has been supported by the National Research Program FIRB/RBNE01WBBBB on Large Scale Nonlinear Optimization.

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Panicucci, B., Pappalardo, M. & Passacantando, M. A path-based double projection method for solving the asymmetric traffic network equilibrium problem. Optimization Letters 1, 171–185 (2007). https://doi.org/10.1007/s11590-006-0002-9

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  • DOI: https://doi.org/10.1007/s11590-006-0002-9

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