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선박조우 상황별 항해당직자의 충돌위기체감지수에 관한 연구

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

  • 김대식 (목포해양대학교 해상운송시스템학과) ;
  • 임정빈 (목포해양대학교 해상운송시스템학부)
  • Kim, Dae-Sik (Division of Maritime Transportation System, Mokpo National Maritime University) ;
  • Yim, Jeong-Bin (Division of Maritime Transportation System, Mokpo National Maritime University)
  • 투고 : 2016.01.19
  • 심사 : 2016.02.25
  • 발행 : 2016.02.28

초록

본 연구는 인적오류 예방을 위해 선박 충돌위험 가능성이 높은 여섯 가지 선박조우상황(Head on, $045^{\circ}$, $090^{\circ}$, $135^{\circ}$, Overtaking, Overtaken)에 대해서 양 선박의 거리가 점차 감소될 때 항해 당직자가 느끼는 충돌위기체감지수(Collision Risk Perception Index, CRPI)를 획득하고 통계분석을 통하여 신뢰도분석 및 가설을 검증한 후 곡선근사과정을 통해 다항 계수로 모델링하는 것이 목적이다. 해상에서 실제 경비함 두 척과 항해당직 승조원 총 30명을 대상으로 CRPI 데이터 획득 실험을 하였으며 데이터 분석결과 각 조우상황에서 높은 신뢰도를 나타냈고 유의미한 결과를 나타냈다. 또한 타 선박 조우시 양 선박간 거리가 가까워지는 상황에서 항해당직자의 승선경력과 연령이 많고, 상위면허를 보유 할수록 CRPI에 음(-)의 영향을 미친다는 것을 알았다. 또한 3차 다항식 모델로 CRPI를 추정한 결과 평균제곱오차(RMSE)는 Head on에서 1.19, $045^{\circ}$에서 0.87, $090^{\circ}$에서 0.81, $135^{\circ}$에서 0.71, Overtaking에서 1.29, Overtaken에서 0.87로 나타나서 CRPI 곡선근사가 유용함을 알았다.

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, $045^{\circ}$, $090^{\circ}$, $135^{\circ}$, 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 $045^{\circ}$, 0.81 to $090^{\circ}$, 0.71 to $135^{\circ}$, 1.29 to Overtaking and 0.87 to Overtaken.

키워드

참고문헌

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피인용 문헌

  1. Development of a Collision Risk Assessment System for Optimum Safe Route vol.24, pp.6, 2018, https://doi.org/10.7837/kosomes.2018.24.6.670
  2. 해양경찰 함정 실험을 통한 선박충돌 위험도의 변화가 최대인 거리 식별에 관한 연구 vol.23, pp.5, 2017, https://doi.org/10.7837/kosomes.2017.23.5.447
  3. 선박충돌 위기상황에서 선박운항자가 지각한 충돌위험도 분석 vol.36, pp.5, 2016, https://doi.org/10.5143/jesk.2017.36.5.447
  4. Modeling perceived collision risk in vessel encounter situations vol.166, pp.None, 2016, https://doi.org/10.1016/j.oceaneng.2018.08.003