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Zone of Confidence Impact on Cross Track Limit Determination in ECDIS Passage Planning

1
Nautical Department, University of Dubrovnik, Ćira Carića 4, 20000 Dubrovnik, Croatia
2
Faculty of Maritime Studies, University of Rijeka, Studentska ulica 2, 51000 Rijeka, Croatia
*
Authors to whom correspondence should be addressed.
J. Mar. Sci. Eng. 2020, 8(8), 566; https://doi.org/10.3390/jmse8080566
Received: 26 June 2020 / Revised: 21 July 2020 / Accepted: 25 July 2020 / Published: 27 July 2020
(This article belongs to the Special Issue Advances in Navigability and Mooring)
The technology breakthrough that Electronic Chart Display and Information System (ECDIS) has brought to modern navigation has the capability to improve the safety of navigation. This could be achieved only when the capabilities of the system are known by an end-user. Cross Track Limit (XTL) is an ECDIS safety parameter, set by the navigator, which enhances the navigational task automation in the function of workload reduction. Determination of factors affecting the value of XTL safety parameter, with special consideration to chart data reliability, is elaborated in this paper. Chart data reliability depends on the quality of chart survey data, which in many cases are outdated and unreliable. Analysis of past research on this subject is used to define the factors affecting XTL. Practices of different shipping companies with regards to XTL are analyzed and compared in order to confirm if there is a uniform practice between them. Nevertheless, shipping companies have a different or no practice of obtaining XTL, which allows the navigator to define safety parameters by a subjective opinion. In this paper, method of XTL determination for a specific vessel is suggested, considering previously defined factors. Finally, crucial influence of survey data to the safety of navigation is presented in this study. View Full-Text
Keywords: Electronic Chart Display and Information System; Zone of Confidence; passage planning; route validation; safety parameters Electronic Chart Display and Information System; Zone of Confidence; passage planning; route validation; safety parameters
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MDPI and ACS Style

Kristić, M.; Žuškin, S.; Brčić, D.; Valčić, S. Zone of Confidence Impact on Cross Track Limit Determination in ECDIS Passage Planning. J. Mar. Sci. Eng. 2020, 8, 566. https://doi.org/10.3390/jmse8080566

AMA Style

Kristić M, Žuškin S, Brčić D, Valčić S. Zone of Confidence Impact on Cross Track Limit Determination in ECDIS Passage Planning. Journal of Marine Science and Engineering. 2020; 8(8):566. https://doi.org/10.3390/jmse8080566

Chicago/Turabian Style

Kristić, Miho, Srđan Žuškin, David Brčić, and Sanjin Valčić. 2020. "Zone of Confidence Impact on Cross Track Limit Determination in ECDIS Passage Planning" Journal of Marine Science and Engineering 8, no. 8: 566. https://doi.org/10.3390/jmse8080566

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