Chong Ju Chae

World Maritime University | WMU · Maritime Safety and Environmental Administration

The Formal Safety Assessment (FSA) is a structured and systematic methodology developed by the IMO, aimed at assessing the risk of vessels and recommending the method to control intolerable risks, thereby enhancing maritime safety, including protection of life, health, the marine environment and property, by using risk analysis and cost-benefit ass...

Formal Safety Assessment (FSA) has been mostly implemented on the hardware aspects of vessels. Although there are guidelines regarding human error FSAs, there have not been many assessments in such areas. To this end, this study seeks to use precedent studies for the safe operation of DP vessels, conducting an FSA regarding human error of DP LOP (L...

Maritime accidents are always accompanied by human/property damages. If management level ship's officers properly respond to emergency situation in a correct manner based on knowledge required by international conventions, when maritime accidents occur, it will be possible to minimize such human/property damages. To improve the ability to deal with...

According to the MAIIF report, from 1998 to 2009, 101 incidents involving entering enclosed spaces aboard ships resulted in 93 deaths and 96 casualties. IMO has therefore amended the Recommendations for entering Enclosed Spaces Entry and SOLAS 1974 Convention Chapter 3 Regulation 19, which mandates enclosed spaces entry and rescue drill on a regula...

Maritime cybersecurity has become a critical consideration for the safe operation of ships as the volume and variety of information exchanged between ships and onshore systems continue to increase. This study aims to identify a ship’s cybersecurity risks based on probability and severity and to propose solutions taking into account their costs and...

Maritime Autonomous Surface Ship (MASS) is a phenomenon of evolutionary maritime technology development. This involves developing new ship navigation technology by applying core technologies of the Fourth Industrial Revolution such as AI, IoT, Big Data, and Sensor Technology to existing maritime technology. The most representative technology for th...

Virtual reality (VR) has been adopted for education and training in numerous lines of work. In the field of maritime education and training (MET), training with VR has been implemented in areas such as engine room system familiarization, dangerous work onboard familiarization, and emergency response. In addition, in line with current trends in mari...

When analyzing ship accidents, there may be doubts whether appropriate countermeasures had been taken to prevent known types of accidents. This study aimed to suggest possible solutions by investigating the status and issues associated with the implementation of countermeasures using importance–performance analysis (IPA), Borich’s needs assessment,...

This book(Maritime English) was newly written in accordance with the introduction of the (National Competence Standard, NCS) in a situation in which the practical use of maritime English for seafarers in countries where English is not a native language is emphasized. Parts 1 to 5 of this book deal with maritime English used by navigators which incl...

With numerous efforts undertaken by both industry and academia to develop and implement autonomous merchant vessels, their safety remains an utmost priority. One of the modes of their operation which is expected to be used is a remote control. Therein, some, if not all, decisions will be made remotely by human operators and executed locally by a ve...

In this book, terms that are relatively frequently used in IMO meetings are identified and classified according to the main agendas of the IMO committees and sub-committees. In principle, the terminology is intended to include the definition of the term and the background of it, and is written in a concise and easy to understand manner by referrin...

If a ship’s hull or tank breaks, the ship may sink, or oil spills can cause enormous damage to the environment. If the ship is equipped with a capable, cost-effective oil or liquid flow stop emergency device, casualties and marine pollution could be reduced. Many magnetic-type liquid spill stop emergency devices developed since 1904 have limitation...

Recovery maneuvers are highly important for rescuing a person overboard at sea. This is the prime reason why the International Maritime Organization (IMO) has published the International Aeronautical and Maritime Search and Rescue (IAMSAR) Manual III, which aims to assist vessels and aircrafts in the performance of a search, rescue, or on-scene coo...

The introduction of the maritime autonomous surface ship (MASS) to the maritime industry will open up a new era and bring about a new paradigm shift in terms of cost efficiency, maritime accidents, and human resources. Various studies are currently being conducted to realize the MASS. Understanding the scope and direction of these studies will be o...

This book provides guidance on how the captain should respond in the event of an emergency on the vessel. For this purpose, this book contains the essential knowledge that the captain must understand before a crisis situation occurs, the captain's duties, the principle of situation judgment, the step-by-step situation judgment procedure, and consid...

The book included all aspect of Crude Oil Tanker operation. Based on the experience of 7 years on board and 3 years of C/O experience, the author particularly contains the contents of tanker structures, tanker loading and unloading practice, tanker operation, vetting inspection, tanker maintenance, and tanker safety.

IMO developed VIMSAS for effective application of IMO instruments related to maritime safety and environmental protection and was implemented from 2006 to 2016. Based on this, the purpose and procedures of VIMSAS applied to IMO member states by trial, and IMSAS was enforced from January 1st 2016. IMSAS was implemented to ensure that IMO Member Stat...

IMO GUIDE BOOK is published in order to help all those who are interested in IMO to understand IMO and to help those who are in charge of IMO meetings, especially those who are attending meetings for the first time, efficiently carry out IMO work in accordance with international conventions. Part 1 of the IMO Guide book covers the general content o...

This study reviewed 612 DP LOP(Loss of Position) incident reports which submitted to IMCA from 2001~2010 and identified 103 human error caused incidents and classified it through HFACS. And, this study analysis of conditional probability of human error on DP LOP incidents through application of bayesian network. As a result, all 103 human error rel...

The class of Dynamic Positioning System is divided in 3 classes depending on its redundancy and reliability according to IMO and classification society. There are 3 DP classes such as DP Class 1, 2 and 3 according to IMO MSC/Circ. 645. Higher DP class vessel has higher reliability, since redundancy concept is applied to the DP vessel depending on i...

The Dynamic Positioning System consists of 7 elements which are namely Power system, Human machine interface, DP Computer, Position Reference System(PRS), Sensors, Thruster system and DP Operator. Incidents like loss of position(LOP) on DP vessel usually occur due to errors in these 7 elements. The purpose of this study is to find out safety operat...

This book contained configuration of Dynamic Positioning System, Theory of DP system and block diagram, sensors for DP system, Position Reference System, UTM coordinates, Power System for DP vessel, FMEA, Operation of DP system and Rules and Regulation. Understanding the DP system can be very helpful in understanding MASS technology and operation...

The comprehensive review of the STCW 1978, as amended in 1995 and associated Code was carried out from 2006 to 2010. These amendments will have a certain degree of impact on Maritime Education and Training(MET) institutes in terms of education and training of seafarer worldwide. Particularly, the Far East region countries are effected more than oth...

The Major inspection is a ship inspection which is executed voluntarily for tankers by Major oil companies(hereinafter it is called "Major"). To take the Major's cargo tanker should pass Major inspection. Thus, even though Major inspection is executed voluntarily, it is more important one than any other inspection for ship's crews and owner because...