2 Search Results for "Homfeld, Henning"

Document

Routing Cars in Rail Freight Service

Authors: Armin Fügenschuh, Henning Homfeld, and Hanno Schuelldorf

Published in: Dagstuhl Seminar Proceedings, Volume 9261, Models and Algorithms for Optimization in Logistics (2009)

Abstract

Cars in rail freight services at Deutsche Bahn follow prescribed routes from their origin via intermediate shunting yards to their destination. The main goal in designing such routes is to reduce the number of trains and their travel distances. Various real-world capacity constraints make the problem difficult to formulate and also to solve. We present MILP and MINLP models for this problem based on multicommodity flows and arborescences. We compare these formulations using test- and real-world data.

Cite as

Armin Fügenschuh, Henning Homfeld, and Hanno Schuelldorf. Routing Cars in Rail Freight Service. In Models and Algorithms for Optimization in Logistics. Dagstuhl Seminar Proceedings, Volume 9261, pp. 1-10, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2009)

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@InProceedings{fugenschuh_et_al:DagSemProc.09261.25,
  author =	{F\"{u}genschuh, Armin and Homfeld, Henning and Schuelldorf, Hanno},
  title =	{{Routing Cars in Rail Freight Service}},
  booktitle =	{Models and Algorithms for Optimization in Logistics},
  pages =	{1--10},
  series =	{Dagstuhl Seminar Proceedings (DagSemProc)},
  ISSN =	{1862-4405},
  year =	{2009},
  volume =	{9261},
  editor =	{Cynthia Barnhart and Uwe Clausen and Ulrich Lauther and Rolf H. M\"{o}hring},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops-dev.dagstuhl.de/entities/document/10.4230/DagSemProc.09261.25},
  URN =		{urn:nbn:de:0030-drops-21848},
  doi =		{10.4230/DagSemProc.09261.25},
  annote =	{Keywords: Mixed-Integer Programming, Branch-and-Cut, Logistics, Routing and Scheduling}
}

Document

DOI: 10.4230/OASIcs.ATMOS.2006.686

Locomotive and Wagon Scheduling in Freight Transport

Authors: Armin Fügenschuh, Henning Homfeld, Andreas Huck, and Alexander Martin

Published in: OASIcs, Volume 5, 6th Workshop on Algorithmic Methods and Models for Optimization of Railways (ATMOS'06) (2006)

Abstract

We present a new model for a strategic locomotive scheduling problem arising at the Deutsche Bahn AG. The model is based on a multi-commodity min-cost flow formulation that is also used for public bus scheduling problems. However, several new aspects have to be additionally taken into account, such as cyclic departures of the trains, time windows on starting and arrival times, network-load dependend travel times, and a transfer of wagons between trains. The model is formulated as an integer programming problem, and solutions are obtained using commercial standard software. Computational results for several test instances are presented.

Cite as

Armin Fügenschuh, Henning Homfeld, Andreas Huck, and Alexander Martin. Locomotive and Wagon Scheduling in Freight Transport. In 6th Workshop on Algorithmic Methods and Models for Optimization of Railways (ATMOS'06). Open Access Series in Informatics (OASIcs), Volume 5, pp. 1-14, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2006)

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@InProceedings{fugenschuh_et_al:OASIcs.ATMOS.2006.686,
  author =	{F\"{u}genschuh, Armin and Homfeld, Henning and Huck, Andreas and Martin, Alexander},
  title =	{{Locomotive and Wagon Scheduling in Freight Transport}},
  booktitle =	{6th Workshop on Algorithmic Methods and Models for Optimization of Railways (ATMOS'06)},
  pages =	{1--14},
  series =	{Open Access Series in Informatics (OASIcs)},
  ISBN =	{978-3-939897-01-9},
  ISSN =	{2190-6807},
  year =	{2006},
  volume =	{5},
  editor =	{Jacob, Riko and M\"{u}ller-Hannemann, Matthias},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops-dev.dagstuhl.de/entities/document/10.4230/OASIcs.ATMOS.2006.686},
  URN =		{urn:nbn:de:0030-drops-6863},
  doi =		{10.4230/OASIcs.ATMOS.2006.686},
  annote =	{Keywords: Freight Transport, Vehicle Scheduling, Time Windows, Integer Programming.}
}

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2 Search Results for "Homfeld, Henning"

Routing Cars in Rail Freight Service

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Locomotive and Wagon Scheduling in Freight Transport

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