DIRECT Optimization Algorithm for Ship Routing Plan
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 the general concept 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 in cooperation with Maersk Maritime Technology. The developed routing tool is demonstrated on several conceptual cases to determine capabilities of route profiles avoiding obstacles such as land, avoiding adverse storms by varying voyage speed and utilizing weather to schedule a route with minimized fuel consumption. Strengths and weaknesses of the utilization of the DIRECT algorithm are discussed.

DIRECT algorithm

Emission reduction

Ship weather routing

Fuel saving

Weather routing


Erik Larsson

Chalmers, Shipping and Marine Technology

Martin Hjorth Simonsen

Chalmers, Shipping and Marine Technology

Wengang Mao

Chalmers, Shipping and Marine Technology, Marine Technology

Proceedings of the International Offshore and Polar Engineering Conference. 25th International Offshore and Polar Engineering Conference, ISOPE-2015, Hawaii, 21-26 June 2015.

1098-6189 (ISSN)

Driving Forces

Sustainable development

Innovation and entrepreneurship

Areas of Advance



Subject Categories

Marine Engineering

Discrete Mathematics

More information