An integrated vessel schedule and aggregated cargo route recovery model

Grzegorz Siekaniec, David Franz Koza, David Pisinger, Leo Emil Sokoler

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Despite a precisely established plan, disruptions are a reality in liner shipping. They are caused by unforeseen factors such as weather, port congestion, low terminal productivity, crane breakdowns etc. Disruptions vary in magnitude. Smaller disruptions, such as the temporary stop of a crane operations due to fog, often impacts only a single vessel. In contrast, the closure of a hub terminal as Algeciras for two days due to rough weather in Gibraltar Straits has severe ripple effects that spread across the entire network. Recovery actions for such major events require rescheduling of multiple vessels, as well as cargo re-routing. Maersk, in cooperation with the Technical University of Denmark, is working on a decision support tool aimed at recovering operations after disruptions of different sizes in near real time. The tool uses an integrated approach that jointly optimizes vessel schedules and cargo routes. The objective is to minimize (a) operational cost, mainly vessel related such as fuel and port stays, and (b) impact on cargo delivery dates. The outcome is "cargo-friendly" revised vessel schedules that recovers operations within a fixed time horizon. The practical considerations and mathematical formulation of the model(s) will be presented together with preliminary computational results.
Original languageEnglish
Publication date2019
Publication statusPublished - 2019
Event30th European Conference On Operational Research
- University College Dublin, Dublin, Ireland
Duration: 23 Jun 201926 Jun 2019
Conference number: 30


Conference30th European Conference On Operational Research
LocationUniversity College Dublin
Internet address

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