Publications

Zeng, Y., Zhang, J.F., Teixeira, A.P. and Guedes Soares, C. (2018), “Role assignment and conflict identification for the encounter ships under COLREGs”, Guedes Soares, C. & Santos T.A., (Eds.), Progress in Maritime Technology and Engineering, Taylor and Francis, London, UK, pp. 137-146

Collision avoidance is one of the most important operations in ship navigation. A fast and effective assessment of the navigating situation and decision on adequate actions are essential for the safety of the ship itself and all the surrounding ships. The regulations on the role assignment introduced in the International Regulations for Preventing Collisions at Sea (COLREGs) are studied. The paper addresses the possible conflicts between Rules 12 and 15 when information about the ship types is not complete or is assessed differently by the two ships involved in the encounter situation. With respect to the Rule 12, algorithms of determining the wind direction on ships and the ship to windward are introduced, so that the role assignments using Rules 12 and 15 can be stablished automatically. The results derived from the two rules are compared and the possible conflicts are demonstrated. Possible ways of dealing with such conflicts are also discussed.

If you did not manage to obtain a copy of this paper: Request a copy of this article



For information about all CENTEC publications you can download: Download the Complete List of CENTEC Publications