Determination of the dynamic critical maneuvering area in an encounter between two vessels: Operation with negligible environmental disruption
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A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä
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Date
2020-10-01
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Language
en
Pages
16
Series
Ocean Engineering, Volume 213
Abstract
This paper introduces the concept of Collision Avoidance Dynamic Critical Area (CADCA) for onboard Decision Support Systems (DSS). The indicator proposed is derived via identification of a minimum required maneuvering zone in an encounter between two vessels. The CADCA model accounts for ship maneuvering dynamics and associated hydrodynamic actions emerging from different rudder angles and forward speed effects. The method presented is novel as it considers the variability of a critical area due to dynamic changes in operational parameters for both vessels. Results of the simulations carried out in negligible weather conditions confirm that computed zones may differ significantly in terms of shapes and limits. It is demonstrated that the size of the CADCA depends on the rudder angle, forward speed, as well as the dimensions of the vessels.Description
Keywords
Collision avoidance dynamic critical area (CADCA), Evasive maneuver, Maritime risk and safety, Ship maneuvering area, Last-minute maneuver (LMM), COLREGs, Performance, Design
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Citation
Gil, M, Montewka, J, Krata, P, Hinz, T & Hirdaris, S 2020, ' Determination of the dynamic critical maneuvering area in an encounter between two vessels : Operation with negligible environmental disruption ', Ocean Engineering, vol. 213, 107709 . https://doi.org/10.1016/j.oceaneng.2020.107709