Speed Optimization in Liner Shipping Network Design

Berit Dangaard Brouer (Invited author), Christian Vad Karsten (Invited author), David Pisinger (Invited author)

    Research output: Contribution to conferenceConference abstract for conferenceResearchpeer-review

    Abstract

    In the Liner Shipping Network Design Problem (LSNDP) services sail at a given speed throughout a round trip. In reality most services operate with a speed differentiated head- and back-haul, or even individual speeds on every sailing between two ports. The speed of a service is decisive for the bunker consumption in the network as well as the transit time of cargo. Speed optimization has been considered for tramp shipping showing significant reductions in fuel consumption. However, variable speeds has not been considered for post optimization of the LSNDP, where speed optimization could result in changes to the cargo flow due to transit time restrictions as well as significant savings in fuel consumption and required vessel deployment due to a weekly frequency requirement. We present a heuristic method to calculate variable speed on a service and present computational results for improving a solution of the LSNDP with average speeds to a solution with variable speed. We analyze the results according to transit time, fuel consumption and vessel deployment.
    Original languageEnglish
    Publication date2015
    Publication statusPublished - 2015
    Event27th European Conference on Operational Research - University of Strathclyde, Glasgow, United Kingdom
    Duration: 12 Jul 201515 Jul 2015

    Conference

    Conference27th European Conference on Operational Research
    LocationUniversity of Strathclyde
    CountryUnited Kingdom
    CityGlasgow
    Period12/07/201515/07/2015

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