An Optimal Route of a Vessel With Presence of Drifting Ice Feature

Marine transport systems have a special significance for operations in Arctic regions, including the Northern Sea Route: the ongoing or planned economic activity requires transportation management. Digital models of marine transport systems are mainly based on routing algorithms, which are designed for static map. The navigation in high latitudes sometimes takes place in presence of drifting ice floes and icebergs. Hence, dynamics of ice features governed by weather conditions is important for time and risk management in navigation. The paper considers the problem of finding the optimal route on the static ice map in presence of a single dynamic ice feature. To solve this problem, the composite model is suggested. The static part of the map with ice conditions is given by the graph on which route optimization is performed by means of A* algorithm. On the dynamic part of the map the ice feature thought as a velocity object performs both translational and rotation motion. To avoid possible collision of a vessel with this ice feature, an avoidance maneuver or vessel motion delay can be used. In the paper it is shown that simple avoidance maneuver calculated with respect to ice feature motion law can significantly decrease the travel time.

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  • English

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  • Accession Number: 01745177
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Jul 6 2020 11:27AM