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2 TransNav : International Journal on Marine Navigation and Safety of Sea Transportation

2 2010

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Solving Multi-Ship Encounter Situations by Evolutionary Sets of Cooperating Trajectories

Szlapczynski R.

TransNav : International Journal on Marine Navigation and Safety of Sea Transportation

2010

Vol. 4, no. 2

185--190

The paper introduces a new approach to solving multi-ship encounter situations by combining some of the assumptions of game theory with evolutionary programming techniques. A multi-ship encounter is here modelled as a game played by “thinking players” – the ships of different and possibly changing strate-gies. The solution – an optimal set of cooperating (non-colliding) trajectories is then found by means of evo-lutionary algorithms. The paper contains the description of the problem formulation as well as the details of the evolutionary program. The method can be used for both open waters and restricted water regions.

Evolutionary Sets of Cooperating Trajectories in Multi-Ship Encounter Situations - Use Cases

Szłapczynski R.

TransNav : International Journal on Marine Navigation and Safety of Sea Transportation

2010

Vol. 4, no. 2

191--196

The paper discusses the advantages of a new approach to solving ship encounter situations by combining some of the assumptions of game theory with evolutionary programming techniques. A multi-ship encounter is here modeled as a game played by “thinking players” – the ships of different and possibly chang-ing strategies. The solution – an optimal set of cooperating (non-colliding) trajectories is then found by means of evolutionary algorithms. The paper contains the results obtained for different cases of situations including open waters and restricted water regions and the discussion of these results. The already developed version of the method is fast enough to be applied in the real time on-board collision avoidance systems or VTS systems.