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http://dx.doi.org/10.5394/KINPR.2017.41.3.93

A Study on the Degree of Collision Risk through Analysing the Risk Attitude of Vessel Traffic Service Operators  

Lee, Jin-Suk (Graduate school of Korea Maritime and Ocean University)
Song, Chae-Uk (Division of Navigation, Korea Maritime and Ocean University)
Publication Information
Journal of Navigation and Port Research / v.41, no.3, 2017 , pp. 93-102 More about this Journal
Abstract
When VTSOs (Vessel Traffic Service Operator) determine the degree of collision risk for two vessels, they consider comprehensive information about each vessel's course, speed, DCPA, TCPA, and encountering situation. In this study, we proposed a utility function based on the risk attitudes of VTSOs toward the Risk Index (RI). The RI was calculated using the risk of encounter, the risk of approach, and the risk of time for two vessels in order to predict each ship's collision risk from the VTS viewpoint. We obtained each coefficient of the RI and the risk attitude through a survey of collision risks among VTSOs of Korea. In order to verify whether the proposed utility is reasonable, we validated by applying the degree of collision risk to some historical cases of accidents in Busan port along with the Ship of ES value($ES_S$) of ES(Environmental Stress) model.
Keywords
VTSO; Ship's Collision Risk; VTS view-point; Risk Index; Risk attitude;
Citations & Related Records
Times Cited By KSCI : 6  (Citation Analysis)
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