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An Extended Formulation for the Line Planning Problem

In: Operations Research Proceedings 2015

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  • Heide Hoppmann

    (Zuse Institute Berlin)

Abstract

In this paper we present a novel extended formulation for the line planning problem that is based on what we call “configurations” of lines and frequencies. Configurations account for all possible options to provide a required transportation capacity on an infrastructure edge. The proposed configuration model is strong in the sense that it implies several facet-defining inequalities for the standard model: set cover, symmetric band, MIR, and multicover inequalities. These theoretical findings can be confirmed in computational results. Further, we show how this concept can be generalized to define configurations for subsets of edges; the generalized model implies additional inequalities from the line planning literature.

Suggested Citation

  • Heide Hoppmann, 2017. "An Extended Formulation for the Line Planning Problem," Operations Research Proceedings, in: Karl Franz Dörner & Ivana Ljubic & Georg Pflug & Gernot Tragler (ed.), Operations Research Proceedings 2015, pages 11-17, Springer.
    • Handle: RePEc:spr:oprchp:978-3-319-42902-1_2
    DOI: 10.1007/978-3-319-42902-1_2
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