On solving multi-type railway line planning problems
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An important strategic element in the planningprocess of a railway operator is the development of a lineplan, i.e., a set of routes (paths) on the network of tracks, operated at a given hourly frequency. The models described in the literature have thus far considered only lines that halt at all stations along their route. In this paper we introduce several models for solving line planning problems in which Lines can have different halting patterns. Correctness and equivalence proofs for these models are given, as well as an evaluation using several real-life instances.