Abstract
Objective: The purpose of this study is to contribute to the reduction of human error of captain and OOW for prevention of ship collision accident by investigating and statistically analyzing the factors of human error of the captain and OOW. Background: Ship collision accidents tend to increase every year, and the cause of ship collision in recent 7 years is 98% due to human error. However, there are few studies on the cause of navigation officer's human error in the ship collision accident. Method: This study collected and analyzed data of ship collision accident 109 cases, 218 ships and 218 captain and OOW from passenger ships and merchant ships over 500 tons from 2010 to 2016. Through cross tabulation analysis, causes of human errors in OOW were identified in ship collision situations. Results: As a result of analyzing the cause of collision caused by the OOW on 134 vessels, the main cause of give-way vessels were the neglect of lookout and watch-keeping (63.8%). The stand-on vessel did not carry out appropriate cooperation activities (64.6%). In the case of the captain, the most frequent cause of collision was the neglect of lookout and watch-keeping (46.4%). The first mate (45.2%) did not take appropriate cooperative action. In the case of the second and third mate, the cause of collision was the neglect of lookout and watch-keeping. The lookout neglect factor was the common cause in the give-way vessel and the stand-on vessel (51.5%). Conclusion: When encountering another vessel during the voyage, it is necessary to navigate thoroughly with naked eyes and radar, looking for the other vessel, and the maneuver to avoid collision should be active operation at a sufficient time. In this study, 109 cases of ship collision were caused by human error of captain and OOW. It is suggested that the captain and the second mate should pay special attention to the voyage because there are a relatively large number of cases in which the lookout was neglected. Application: The results of this study can be used to present guidelines for preventative measures for the captain and navigation officers in shipping industry including navigation safety and education/training.