A note on “Multistage Methods for Freight Train Classification”
Publication date
2013-02-22
Document type
Forschungsartikel
Author
Briskorn, Dirk
Organisational unit
Universität Augsburg, Lehrstuhl für Sustainable Operations and Logistics
Scopus ID
Publisher
Wiley
Series or journal
Networks
ISSN
Periodical volume
62
Periodical issue
1
First page
80
Last page
81
Peer-reviewed
✅
Part of the university bibliography
Nein
Language
English
Keyword
minimum feedback arc set problem on euler multigraphs
railway optimization
shunting yard
train classification
Abstract
The paper “Multistage Methods for Freight Train Classification” by Jacob et al. [Networks 57 (2011) 87–105] provides great insight into the theory and practice of sorting procedures at shunting yards. In Jacob et al. [Networks 57 (2011) 87–105] many relevant shunting situations (e.g., single or multiple inbound trains, single or multiple outbound trains, (un)restricted number of tracks, (un)restricted track capacity) are formally specified as optimization problems. Then, for almost all of them either an exact polynomial‐time algorithm or an NP‐hardness proof is provided. However, the case of multiple inbound trains, which is of high practical relevance, is left open. We close this gap by providing a proof of NP‐hardness. © 2013 Wiley Periodicals, Inc. NETWORKS, 2013
Version
Published version
Access right on openHSU
Metadata only access
