Abstract
In a collision situation at sea, the decision support system should help the operator to choose a proper manoeuvre in a given navigational situation, teach him good habits, and enhance his general intuition on how to behave in similar situations in the future. An accepted approach here is the use of a multiple criterion decision problem based system. A new version of the uEP/N++ (Evolutionary Planner /Navigator) algorithm equipped with an on - line mode has been used, as a major component of such a system, for computing the near optimum trajectory of a ship in a given environment. The introduction of the time parameter, moving constrains representing approaching ships, and the online mode are the main distinctions of the newly introduced system. The paper presents selected results in the form of ship trajectories obtained for typical navigation situations.
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