A Study on the Collision Risk Perception Index to OOW`s According to Vessel Encountering Situations

Title & Authors
A Study on the Collision Risk Perception Index to OOW`s According to Vessel Encountering Situations
Kim, Dae-Sik; Yim, Jeong-Bin;

Abstract
The purpose of this study is for Human error prevention to acquire Collision Risk Perception Index (CRPI) sensed by the Officer Of the Watch (OOW) when the approaching distances are reduced in six types of ship encountering situations (Head on, $\small{045^{\circ}}$, $\small{090^{\circ}}$, $\small{135^{\circ}}$, Overtaking, Overtaken) between own ship and a target ship and then to predict CRPI fitting coefficients with polynomials in the curve-fitting process. CRPI acquisition experiments are carried out on two coast-guard ships and with the total of 30 crew members. Analysing results shows that CRPI data have goodness of fit to the six types of encountering situation. Futhermore, the One-Way ANOVA results show that CRPI has a negative affect to the OOW`s age, career and license grade as the approaching distances is reduced. The availability of CRPI curve fitting with 3 degrees of polynomial was testified through the RMSE as 1.19 to Head on, 0.87 to $\small{045^{\circ}}$, 0.81 to $\small{090^{\circ}}$, 0.71 to $\small{135^{\circ}}$, 1.29 to Overtaking and 0.87 to Overtaken.
Keywords
Human error;Officer Of the Watch (OOW);Experiment aboard;Collision Risk Perception Index;One-Way ANOVA;Curve fitting;
Language
Korean
Cited by
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