DIRECT optimization algorithm in weather routing of ships
Paper in proceedings, 2015

Weather routing represents one increasingly recognized method for reducing fuel consumption, hereby lowering emissions and costs. This paper provides a short outline of weather routing of ships, while focus is on the implementation of the DIRECT (Dividing RECTangles) algorithm in the construction of a novel weather routing tool made under supervision from Maersk Maritime Technology. It is evaluated on several conceptual cases to determine capabilities of route profiles avoiding obstacles such as adverse storms by varying voyage speed and utilizing weather to schedule a route with rmnimized fuel consumption. This paper discusses the application of the developed routing tool for shortest route, land avoidance, storm avoidance and combinations. Strengths and weaknesses of the utilization of the DIRECT algorithm are discussed.

DIRECT algorithm

Emission reduction

Weather routing

Fuel saving


Erik Larsson

Chalmers, Shipping and Marine Technology

Martin Hjorth Simonsen

Chalmers, Shipping and Marine Technology

Wengang Mao

Chalmers, Shipping and Marine Technology, Marine Technology

25th International Ocean and Polar Engineering Conference, ISOPE 2015, Kona, Big Island, United States, 21-26 June 2015

1555-1792 (eISSN)

Vol. 2015-January 1207-

Subject Categories

Marine Engineering



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