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A Study on the Degree of Collision Risk with Relative Bearing at CPA
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 Title & Authors
A Study on the Degree of Collision Risk with Relative Bearing at CPA
Lee, Jin-Suk; Jung, Min; Song, Chae-Uk;
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 Abstract
When VTSOs(Vessel Traffic Service Operators) determine the degree of collision risk of two vessels, they consider comprehensively information about each vessel's course, speed, DCPA, TCPA and encountering situation. In this study, we proposed an algorithm in which two relative bearings as information about two vessel's encountering situation are used to evaluate the degree of collision risk. In order to verify whether the proposed algorithm is reasonable, we set twenty encountering situations and conducted a survey of collision risk on fifty three VTSOs about those situations. By comparing the degrees of collision risk with the proposed algorithm to the results of the survey, we found that relative bearing at CPA is very important factor for VTSO to recognize the level of collision risk when two vessels are in encountering situation.
 Keywords
Collision Risk;Encountering situation;CPA;Relative Bearing;VTSO;
 Language
Korean
 Cited by
 References
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