In 2014, at the southwest of Korea the ferry “Sewol” was sank and more than 300 people died. We had many vessel accidents and many people died. In this report, we investigated evacuation in case of overturning accident on passenger vessels under sailing. We compared “Incident” with “Accident”. In this report we defined “Incident” stop expanding damage and “Accident” fail to evacuate and have large number of deaths. As a result, in “Incident” crews decided how to escape and conduct depending on the circumstances but, in “Accident” crews were confused and not able to lead passengers. “Accidents” were investigated in past studies and considered to prevention of recurrence. But, we pointed it is useful to use “Incident” when educating and training.
