An Application of FSA Methodology to the Safety of Bulk Chemical Tankers

2011 ◽  
Vol 219-220 ◽  
pp. 937-940
Author(s):  
Bin Yu ◽  
Yong Xing Jin ◽  
Bin Zheng ◽  
Xiao Dong Zhang

Based on detailed analysis of the risk of bulk chemical tanker transportation, a societal risk acceptance criterion is established. The criterion takes advantage of formal safety assessment (FSA) methodology, which is widely used to analyze risk in maritime industry. In the end of this paper, the negligible range, the ALARP range and the intolerable range of bulk chemical tanker in China are estimated in the criterion.

Author(s):  
Pierre C. Sames ◽  
Rainer Hamann

Risk evaluation criteria related to safety of human life have been available in the maritime industry for some time. However, only recently these criteria became formally accepted by including the CAF and ALARP-boundaries into the Formal Safety Assessment guidelines of the IMO. Risk evaluation criteria related to the protection of the environment are not yet agreed. A proposal for a cost effectiveness criterion related to accidental oil spills called CATS was suggested by the project SAFEDOR. However, a societal risk acceptance of environmental damages from shipping is not yet proposed. And, to effectively apply a cost-effectiveness criterion related to environmental protection, societal risk acceptance and the associated ALARP area need to be defined. To contribute to the ongoing discussion on environmental risk evaluation criteria, this paper presents a societal risk acceptance criterion related to oil spills of tankers which can be used within risk-based ship design and approval as well as for rule-making. The presented work adds to SAFEDOR’s contribution to risk evaluation criteria for the maritime transport in providing an ALARP area for risk assessment of oil transport by tankers. The paper first presents the current state of oil transportation by tankers and continues with providing suggestions how the ALARP boundaries may be derived in this context.


Author(s):  
Rolf Skjong

In the maritime industry the International Maritime Organization (IMO) is the UN organization responsible for developing international safety and environmental protection regulations. IMO has now developed the second version of ‘Guidelines for Formal Safety Assessment (FSA) for use in the IMO rule making process’. The Guidelines are available as circulars both from the Marine Safety Committee (MSC) and the Marine Environmental Protection Committee (MEPC). This standard is, as far as the author knows, the first risk assessment standard adopted in an UN organization. The work with developing this standard was initiated in 1995 at IMO based on an UK initiative. As there have been some attempts to develop internationally accepted risk assessment and risk management standards also in other industries, this paper tries to describe some of the experience and lessons learned from developing and implementing FSA at IMO. Paralleling the development of the guidelines there has been a number of applications of the guidelines, recently focusing on bulk carrier safety. Relevant studies have been carried out by UK, by Japan, by Norway and International Confederation of Free Trade Unions (ICFTU), and by the International Association of Classification Societies (IACS). These studies will be briefly reviewed with respect to methods used, assumptions made and conclusions drawn. The entire process from the initial terms of reference formulated by IMO to the final decisions is considered. The main conclusion is that the maritime industry has made a lot of progress, quite fast, in the use of risk assessment as part of the decision making process. This being the case, despite the many communication problems that arises in discussing risk issues in international forums. Furthermore, the FSA has helped balancing the often conflicting interest of the flag states and non-governmental organizations present in IMO. In 2004, a new initiative was taken on developing Goal Based Standards at IMO. This initiative was taken by Greece and Bahamas, and has now been debated at three meetings of MSC. The paper will also discuss the relationship between GBS and FSA based on the experience gained.


Safety ◽  
2020 ◽  
Vol 6 (3) ◽  
pp. 39
Author(s):  
Haibin Wang ◽  
Evangelos Boulougouris ◽  
Gerasimos Theotokatos ◽  
Alexandros Priftis ◽  
Guangyu Shi ◽  
...  

Fully electric ships have been widely developed, investigated and evaluated by the maritime industry as a potential solution to respond to the emissions control required according to the International Maritime Organization (IMO). This study aims at presenting a novel approach to evaluate the safety level of a battery-powered high speed catamaran. Following the Formal Safety Assessment procedure, the risk assessment of the considered ship was conducted leading to the identification of the involved hazards along with the estimation of their frequency and consequences thus allowing for the identification of the most severe hazards. Fault tree analysis is carried out for and the identified top events followed by an event tree analysis to estimate the risk and safety level of the vessel. Furthermore, a cost-benefit assessment is conducted to evaluate the financial impact of selected risk control options. The derived results indicate that the application of battery power systems for high speed ferries exhibits low and acceptable accident frequencies. It is also supported the current regulation to carry out mandatory risk assessment for battery-powered ships.


2020 ◽  
Vol XXIII (2) ◽  
pp. 118-134
Author(s):  
Florin Nicolae

The paper proposes a methodology for identifying, analyzing, and evaluating risks for the maritime industry, presented systematically. In the research, the methodology we applied to container ship, for a generic model of the fully cellular containership type and three modes of operation. The conceptual framework of the research was organized into three stages, which are detailed in the paper. Risk analysis and evaluation took into account the provisions of the IMO (Revised Guidelines for Formal Safety Assessment - FSA for use in the IMO rulemaking process). The major / priority risk factors were grouped into 12 risk scenarios, and the consequences of their materialization were related to 4 types of risk (the risk for human life, risk for the environment, risk for cargo, risk for the ship. The authors consider that the proposed research can be used by adapting it to identify, analyze, and evaluate the risks for the other types of ships.


Author(s):  
Xinping Yan ◽  
Jinfen Zhang ◽  
Di Zhang ◽  
Carlos Guedes Soares

Concerns have been raised to navigational safety worldwide because of the increasing throughput and the passing ships during the past decades while maritime accidents such as collisions, groundings, overturns, oil-spills and fires have occurred, causing serious consequences. Formal Safety Assessment (FSA) has been acknowledged to be a framework widely used in maritime risk assessment. Under this framework, this paper discusses certain existing challenges when an effective safety assessment is carried out under a variety of uncertainties. Some theories and methodologies are proposed to overcome the present challenges, e.g., Fault/Event Tree Analysis (FTA/ETA), Evidential Reasoning (ER), Bayesian Belief Network (BBN) and Belief Rule Base (BRB). Subsequently, three typical case studies that have been carried out in the Yangtze River are introduced to illustrate the general application of those approaches. These examples aim to demonstrate how advanced methodologies can facilitate navigational risk assessment under high uncertainties.


Sign in / Sign up

Export Citation Format

Share Document