Supply vessel planning under cost, environment and robustness considerations

Ellen Karoline Norlund, Irina Gribkovskaia, Gilbert Laporte

Research output: Contribution to journalArticlepeer-review

24 Citations (Scopus)

Abstract

Offshore oil and gas installations need reliable cargo deliveries. The vessels supplying these installations on a periodic basis are expensive and constitute a source of emissions of greenhouse gases. Incorporating vessel speed optimization into the supply vessel planning process may significantly reduce fuel consumption and hence emissions. In addition, speed optimization may yield cost reductions if the number of vessels used does not increase. A main uncertainty factor, especially in the winter season, is the weather conditions which impact sailing and service times. Cost minimization and the application of speed optimization strategies may have implications on the robustness of weekly supply vessel schedules since idle times in the schedules are reduced. We develop a simulation-optimization based methodology that considers costs, emissions and robustness in the generation of weekly supply vessel schedules. Results of analyses conducted on real instances show that robustness requirements may yield both increased emissions and costs in the winter season. However, depending on instance characteristics, different degrees of robustness can be incorporated with both costs and emissions reductions through speed optimization.

Original languageEnglish
Pages (from-to)271-281
Number of pages11
JournalOmega (United Kingdom)
Volume57
DOIs
Publication statusPublished - 1 Dec 2015

Keywords

  • Emissions
  • Green maritime logistics
  • Robustness
  • Ship routing and scheduling
  • Speed optimization
  • Supply vessel operations
  • Weather uncertainty

ASJC Scopus subject areas

  • Strategy and Management
  • Management Science and Operations Research
  • Information Systems and Management

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