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  1. Models and algorithms for shared mobility systems
    Autor*in: Enzi, Miriam
    Erschienen: 2021

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    Resolving-System (kostenfrei)
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    ZBW - Leibniz-Informationszentrum Wirtschaft, Standort Kiel
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    Quelle: Verbundkataloge
    Sprache: Englisch
    Medientyp: Dissertation
    Format: Online
    Weitere Identifier:
    Schlagworte: mobility; shared mobility; transportation; car-sharing; ride-sharing; operations research
    Umfang: 1 Online-Ressource (circa 147 Seiten), Illustrationen
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    Dissertation, Universität Wien, 2021

  2. Stochastic modelling of free-floating car-sharing systems
    Erschienen: February 2021
    Verlag:  Bureau de Montreal, Université de Montreal, Montréal (Québec)

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    ZBW - Leibniz-Informationszentrum Wirtschaft, Standort Kiel
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    Sprache: Englisch
    Medientyp: Buch (Monographie)
    Format: Online
    Schriftenreihe: CIRRELT ; CIRRELT-2021, 07
    Schlagworte: car-sharing; carsharing; free-floating; travel behavior; simulation
    Umfang: 1 Online-Ressource (circa 40 Seiten), Illustrationen
  3. Dynamic relocations in car-sharing networks
    Erschienen: [2021]
    Verlag:  [University of Toronto - Rotman School of Management], [Toronto]

    We propose a novel dynamic car relocation policy for a car-sharing network with centralized control and uncertain, unbalanced demand. The policy is derived from a reformulation of the linear programming fluid model approximation of the dynamic... mehr

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    Helmut-Schmidt-Universität, Universität der Bundeswehr Hamburg, Universitätsbibliothek
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    ZBW - Leibniz-Informationszentrum Wirtschaft, Standort Kiel
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    We propose a novel dynamic car relocation policy for a car-sharing network with centralized control and uncertain, unbalanced demand. The policy is derived from a reformulation of the linear programming fluid model approximation of the dynamic problem. We project the full-dimensional fluid approximation onto the lower-dimensional space of relocation decisions only. This projection results in a characterization of the problem as n+1 linear programs, where n is the number of nodes in the network. The reformulation uncovers structural properties that are interpretable using absorbing Markov chain concepts and allows us to write the gradient with respect to the relocation decisions in closed form. Our policy exploits these gradients to make dynamic car relocation decisions. We provide extensive numerical results where our dynamic car relocation policy consistently outperforms the standard static policy in realistic instances from the literature. In fact, it reduces the static policy's optimality gap by more than 13% in all of these instances and up to 35% in some

     

    Export in Literaturverwaltung   RIS-Format
      BibTeX-Format
    Quelle: Verbundkataloge
    Sprache: Englisch
    Medientyp: Buch (Monographie)
    Format: Online
    Weitere Identifier:
    Schriftenreihe: [Rotman School of Management working paper ; no. 3774324]
    Schlagworte: car-sharing; fluid limit; closed queuing network; car relocation
    Umfang: 1 Online-Ressource (circa 47 Seiten), Illustrationen