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dc.contributor.authorCodina Sancho, Esteve
dc.contributor.otherUniversitat Politècnica de Catalunya. Departament d'Estadística i Investigació Operativa
dc.identifier.citationCodina, E. A variational inequality reformulation of a congested transit assignment model by Cominetti, Correa, Cepeda, and Florian. "Transportation science", 02 Agost 2012, vol. 47, núm. 2, p. 231-246.
dc.description.abstractIn the paper by Cominetti and Correa (2001) [Common-lines and passenger assignment in congested transit networks. Transportation Science 35 (3), pp 250-267], an extension to the common-lines problem for general multidestination networks under congestion is analyzed. Their transit equilibrium assignment model allows for a full representation of congestion effects caused by the variation of effective frequencies experienced by passengers at transit stops. This model is the first to address these characteristics consistently with the concept of strategies. In a subsequent paper by Cepeda et al. (2006) [Cepeda, M., Cominetti, and R. Florian, M. (2006) A frequency-based assignment model for congested transit networks with strict capacity constraints: characterization and computation of equilibria. Trans. Res B 40, 437-459], the computation of equilibrium is performed heuristically by the minimization of a gap function, using the method of successive averages. In this paper, a reformulation of this congested transit equilibrium assignment model is performed, demonstrating that the problem can be expressed as an equivalent variational inequality. The case of strictly capacitated transit networks is explored under the scope of this new reformulation, and new, broader conditions for the existence of solutions to this congested transit assignment model are determined.
dc.format.extent16 p.
dc.subjectÀrees temàtiques de la UPC::Matemàtiques i estadística::Anàlisi numèrica
dc.subject.lcshNumerical analysis
dc.titleA variational inequality reformulation of a congested transit assignment model by Cominetti, Correa, Cepeda, and Florian
dc.subject.lemacAnàlisi numèrica
dc.contributor.groupUniversitat Politècnica de Catalunya. PROMALS - Grup de Recerca en Programació Matemática, Logística i Simulació
dc.description.peerreviewedPeer Reviewed
dc.subject.ams65K Mathematical programming, optimization and variational techniques
dc.rights.accessOpen Access
dc.description.versionPostprint (published version)
local.citation.authorCodina, E.
local.citation.publicationNameTransportation science

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