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Comparative Study on Predictions of Passengers' Evacuation Performances Before and After the Remodelling of MV SEWOL

세월호 증개축 전후 승선객의 피난성능 예측비교

  • Hwang, Kwang Il (Division of Mechanical & Energy Systems Engineering, Korea Maritime and Ocean University)
  • Received : 2014.12.17
  • Accepted : 2015.01.13
  • Published : 2015.01.31

Abstract

Even though the passengers' safety has priority on Passenger ship, there is no criterion on the evacuation performance related with human behavior. To uncover the potential problems of domestic criteria on safety of passenger ships, this study performed simulation ad analysis the evacuees safety before and after the Sewol's remodelling. It is clear that the assembly stations of both before and after Sewol remodelling have sufficient areas to satisfy the domestic criterion by simply human- body's-area, but those are failed to assemble all the passengers by the simulation tool that reflects the human behaviors' characteristics. For the healing angle as 0 degree, and the criteria of SOLAS, it was found out that all the passengers can safely evacuate from each cabins to the embarkation stations for both of the before-and-after the Sewol remodelling. But for the healing angle as 20 degree, both of the before-and-after Sewol remodelling are evaluated as possible to make all the passengers evacuate for day scenario and impossible for night scenario of SOLAS criteria. And because of the worse conditions after the remodelling, the probabilities of Sewol(before) are showed wide band comparing to Naminoue (after).

여객선에서는 승선자의 안전이 가장 중요함에도 불구하고 국내에서는 인간의 피난행동특성을 반영한 피난성능에 관한 기준이 없다. 본 연구에서는 세월호 증개축 전후의 인적피난안전성을 비교 평가하고 이를 통해 현재 기준의 문제점을 도출하고자 하였다. 연구성과를 정리하면 다음과 같다. 첫째, 증개축 전후의 소집장소 면적은 동일하였고, 이 면적은 모두 국내 관련 기준을 만족하는 것으로 평가되지만, 인간의 행동특성을 반영한 인적안전피난시뮬레이션 툴을 활용하면 소집이 불가능한 것으로 판단된다. 둘째, 증개축 전후 선내 공간구성에 대해 각 선실에서 퇴선까지의 피난소요시간예측 시뮬레이션을 50회씩 수행한 결과 힐링각 $0^{\circ}$ 경우에는 모두 SOLAS의 허용기준이내이므로 승객 전원이 충분히 피난할 수 있을 것으로 평가되지만, 힐링각이 $20^{\circ}$인 긴급한 상황에서 피난을 개시할 경우에는 모두 SOLAS의 주간기준은 만족하지만, 야간기준은 만족하지 못하는 것으로 예측되었다. 모든 경우에서 증축 후인 세월호의 피난시간 확률분포가 Naminoue호의 피난시간 확률분포보다 분산되어 있는데 이는 증축후 피난환경이 열악해졌다는 의미이다.

Keywords

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