The Experts below are selected from a list of 276 Experts worldwide ranked by ideXlab platform
Xinping Yan - One of the best experts on this subject based on the ideXlab platform.
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A quantitative approach for risk assessment of a Ship stuck in ice in Arctic waters
Safety Science, 2018Co-Authors: Di Zhang, Jakub Montewka, Enrico Zio, Xinping YanAbstract:Abstract Arctic waters have historically been regarded as harsh environments owing to their extreme weather conditions and remoteness from land. The advantages of shorter sea routes and hydrocarbon energy exploitation have recently led to increased marine activities in such harsh environments. To ensure safe operation within the area, the potential risks of Ship Accidents, need to be systematically analyzed, assessed and managed along with the associated uncertainties. The treatment of epistemic uncertainty in the likelihoods of adverse events due to lack of knowledge and information should also be considered. This paper presents a Frank copula-based fuzzy event tree analysis approach to assess the risks of major Ship Accidents in Arctic waters, taking uncertainty into consideration. The quantitative approach includes four steps, namely, Accident scenario modeling by an event tree model, probability and dependence analysis of the associated intermediate events, risk assessment with respect to the consequent outcome events. A major Ship Accident in Arctic waters - Ships stuck in ice, is chosen as a case to interpret the modeling process of the approach proposed. Crews and Ships owners can use such approach to defining risk control options that enable optimal risk mitigation. Maritime management may also benefit from better risk assessment.
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effectiveness of maritime safety control in different navigation zones using a spatial sequential dea model yangtze river case
Accident Analysis & Prevention, 2015Co-Authors: Yang Wang, Jinfen Zhang, Emanuel Emil Savan, Xinping YanAbstract:This paper aims to analyze the effectiveness of maritime safety control from the perspective of safety level along the Yangtze River with special considerations for navigational environments. The influencing variables of maritime safety are reviewed, including Ship condition, maritime regulatory system, human reliability and navigational environment. Because the former three variables are generally assumed to be of the same level of safety, this paper focuses on studying the impact of navigational environments on the level of safety in different waterways. An improved data envelopment analysis (DEA) model is proposed by treating the navigational environment factors as inputs and Ship Accident data as outputs. Moreover, because the traditional DEA model cannot provide an overall ranking of different decision making units (DMUs), the spatial sequential frontiers and grey relational analysis are incorporated into the DEA model to facilitate a refined assessment. Based on the empirical study results, the proposed model is able to solve the problem of information missing in the prior models and evaluate the level of safety with a better accuracy. The results of the proposed DEA model are further compared with an evidential reasoning (ER) method, which has been widely used for level of safety evaluations. A sensitivity analysis is also conducted to better understand the relationShip between the variation of navigational environments and level of safety. The sensitivity analysis shows that the level of safety varies in terms of traffic flow. It indicates that appropriate traffic control measures should be adopted for different waterways to improve their safety. This paper presents a practical method of conducting maritime level of safety assessments under dynamic navigational environment.
Zhiwei Zhang - One of the best experts on this subject based on the ideXlab platform.
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Global Ship Accidents and ocean swell-related sea states
Natural Hazards and Earth System Sciences, 2017Co-Authors: Zhiwei ZhangAbstract:Abstract. With the increased frequency of Shipping activities, navigation safety has become a major concern, especially when economic losses, human casualties and environmental issues are considered. As a contributing factor, the sea state plays a significant role in Shipping safety. However, the types of dangerous sea states that trigger serious Shipping Accidents are not well understood. To address this issue, we analyzed the sea state characteristics during Ship Accidents that occurred in poor weather or heavy seas based on a 10-year Ship Accident dataset. Sea state parameters of a numerical wave model, i.e., significant wave height, mean wave period and mean wave direction, were analyzed for the selected Ship Accident cases. The results indicated that complex sea states with the co-occurrence of wind sea and swell conditions represent threats to sailing vessels, especially when these conditions include similar wave periods and oblique wave directions.
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Global Ship Accidents and ocean swell-related sea states
2017Co-Authors: Zhiwei ZhangAbstract:Abstract. With the increased frequency of Shipping activities, navigation safety has become a major concern, especially when economic losses, human casualties and environmental issues are considered. As a contributing factor, sea state conditions play a significant role in Shipping safety. However, the types of dangerous sea states that trigger serious Shipping Accidents are not well understood. To address this issue, we analyzed the sea state characteristics during Ship Accidents that occurred in poor weather or heavy seas based on a ten-year Ship Accident dataset. The sea state parameters, including the significant wave height, the mean wave period and the mean wave direction, obtained from numerical wave model data were analyzed for selected Ship Accidents. The results indicated that complex sea states with the co-occurrence of wind sea and swell conditions represent threats to sailing vessels, especially when these conditions include close wave periods and oblique wave directions.
Ersan Basar - One of the best experts on this subject based on the ideXlab platform.
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the analysis of Ship Accident occurred in turkish search and rescue area by using decision tree
Maritime Policy & Management, 2015Co-Authors: Sercan Erol, Ersan BasarAbstract:Turkish search and rescue area is of strategic importance in terms of international transportation and Shipping, particularly Istanbul and Canakkale regions are the output port of the Black Sea countries to the trans-boundary waters. An Accident that may occur in these regions may cause heavy traffic to slow down or even stop the transportation. Slowing down or stopping the transportation and Shipping will cause high economical damage to the countries of the region. At the same time marine Accidents taking place in these regions will most likely result in human casualties and environmental disasters. Hence, it is necessary to evaluate the cause of the Accidents occurring in this region to comment on the common precautions.In this study, 1247 marine Accidents occurring in Turkish search and rescue area were investigated in 2001-2009. These were sorted with frequency analysis and analyzed by using the Decision Tree method. Many of the Ship Accidents (60%) result from human error. Besides, most human error-induced Accidents in Turkish search and rescue areas occurred in Istanbul region (50%). Finally, the risk of a collision-contact Accident in cargo vessels in Istanbul region is stated to be 10% by reason of human error.
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The analysis of Ship Accident occurred in Turkish search and rescue area by using decision tree
Maritime Policy & Management, 2014Co-Authors: Sercan Erol, Ersan BasarAbstract:Turkish search and rescue area is of strategic importance in terms of international transportation and Shipping, particularly Istanbul and Canakkale regions are the output port of the Black Sea countries to the trans-boundary waters. An Accident that may occur in these regions may cause heavy traffic to slow down or even stop the transportation. Slowing down or stopping the transportation and Shipping will cause high economical damage to the countries of the region. At the same time marine Accidents taking place in these regions will most likely result in human casualties and environmental disasters. Hence, it is necessary to evaluate the cause of the Accidents occurring in this region to comment on the common precautions.In this study, 1247 marine Accidents occurring in Turkish search and rescue area were investigated in 2001–2009. These were sorted with frequency analysis and analyzed by using the Decision Tree method. Many of the Ship Accidents (60%) result from human error. Besides, most human error-i...
Weipan Zhang - One of the best experts on this subject based on the ideXlab platform.
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marine oil spill pollution causes and governance a case study of sanchi tanker collision and explosion
Journal of Cleaner Production, 2020Co-Authors: Jihong Chen, Jia Shi, Yaqing Shu, Zheng Wan, Lan Song, Weipan ZhangAbstract:Abstract With the uneven oil distribution worldwide and the growing dependency on oil across countries, tanker transportation has gained increasing predominance in oil trade. However, as a dangerous and highly polluting branch of the maritime industry, oil tankers cannot be underestimated in terms of harm of their oil spills. In recent decades, although oil tanker spill Accidents have decreased in number, the hazards of their pollution remain. The Sanchi Ship Accident in 2018 is a typical example. It is of value to explore how to locate the Accident causes and propose effective measures to reduce such Accidents. This article takes the Sanchi collision and explosion Accident as the subject of study and systematically analyzes main factors of the Accident using the fault tree analysis method, with strategies for future tanker management proposed. As shown in results, the factors that contributed to the oil tanker Accident are quite complicated, with human factors playing a major part structurally. In addition, management, environmental and Ship factors also played a part. Finally, corresponding governance strategies are proposed based on the structural relationShips between the factors. The research in this article is of guiding significance for Shipping companies to reduce tanker oil spills related to Ship collision and acts as an important basis for water transportation administrations to make emergency decisions for such tanker oil spills.
Sercan Erol - One of the best experts on this subject based on the ideXlab platform.
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the analysis of Ship Accident occurred in turkish search and rescue area by using decision tree
Maritime Policy & Management, 2015Co-Authors: Sercan Erol, Ersan BasarAbstract:Turkish search and rescue area is of strategic importance in terms of international transportation and Shipping, particularly Istanbul and Canakkale regions are the output port of the Black Sea countries to the trans-boundary waters. An Accident that may occur in these regions may cause heavy traffic to slow down or even stop the transportation. Slowing down or stopping the transportation and Shipping will cause high economical damage to the countries of the region. At the same time marine Accidents taking place in these regions will most likely result in human casualties and environmental disasters. Hence, it is necessary to evaluate the cause of the Accidents occurring in this region to comment on the common precautions.In this study, 1247 marine Accidents occurring in Turkish search and rescue area were investigated in 2001-2009. These were sorted with frequency analysis and analyzed by using the Decision Tree method. Many of the Ship Accidents (60%) result from human error. Besides, most human error-induced Accidents in Turkish search and rescue areas occurred in Istanbul region (50%). Finally, the risk of a collision-contact Accident in cargo vessels in Istanbul region is stated to be 10% by reason of human error.
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The analysis of Ship Accident occurred in Turkish search and rescue area by using decision tree
Maritime Policy & Management, 2014Co-Authors: Sercan Erol, Ersan BasarAbstract:Turkish search and rescue area is of strategic importance in terms of international transportation and Shipping, particularly Istanbul and Canakkale regions are the output port of the Black Sea countries to the trans-boundary waters. An Accident that may occur in these regions may cause heavy traffic to slow down or even stop the transportation. Slowing down or stopping the transportation and Shipping will cause high economical damage to the countries of the region. At the same time marine Accidents taking place in these regions will most likely result in human casualties and environmental disasters. Hence, it is necessary to evaluate the cause of the Accidents occurring in this region to comment on the common precautions.In this study, 1247 marine Accidents occurring in Turkish search and rescue area were investigated in 2001–2009. These were sorted with frequency analysis and analyzed by using the Decision Tree method. Many of the Ship Accidents (60%) result from human error. Besides, most human error-i...
