Large neighbourhood search for energy-efficient train timetabling

Research output: Chapter in Book/Report/Conference proceedingsChapterpeer-review

Abstract

The electric rail sector, like many sectors, is looking for means to reduce its energy consumption and energy cost. In this work we consider the scenario where the utility provider charges based on the maximum consumption over a period. Therefore one wishes to schedule the departure of trains such that the aggregate load is balanced across time periods while satisfying timetabling and resource restrictions. We present an approach which combines the strengths of a number of research areas such as constraint programming, linear programming, mixed-integer programming, and large neighbourhood search. The empirical performance on instances from an ongoing research challenge demonstrates the approach's ability to dramatically reduce the overall energy cost. In addition, we are able to close a number of the instances for which we prove optimality.

Original languageEnglish
Title of host publicationProceedings - 2015 IEEE 27th International Conference on Tools with Artificial Intelligence, ICTAI 2015
PublisherIEEE Computer Society
Pages828-835
Number of pages8
ISBN (Electronic)9781509001637
DOIs
Publication statusPublished - 4 Jan 2016
Event27th IEEE International Conference on Tools with Artificial Intelligence, ICTAI 2015 - Vietri sul Mare, Salerno, Italy
Duration: 9 Nov 201511 Nov 2015

Publication series

NameProceedings - International Conference on Tools with Artificial Intelligence, ICTAI
Volume2016-January
ISSN (Print)1082-3409

Conference

Conference27th IEEE International Conference on Tools with Artificial Intelligence, ICTAI 2015
Country/TerritoryItaly
CityVietri sul Mare, Salerno
Period9/11/1511/11/15

Keywords

  • Constraint programming
  • Energy efficiency
  • Large neighbourhood search
  • Mixed-integer programming
  • Optimisation
  • Timetabling

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