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Yan X.P.,National Engineering Research Center for Water Transport Safety Center | Yan X.P.,Wuhan University of Technology | Zhang D.,National Engineering Research Center for Water Transport Safety Center | Zhang D.,Wuhan University of Technology | And 2 more authors.
Safety and Reliability of Complex Engineered Systems - Proceedings of the 25th European Safety and Reliability Conference, ESREL 2015 | Year: 2015

Inland waterway transportation, a reliable, economic and environmentally friendly way of transferring goods and people, however, exists certain bottlenecks such as bridge areas, curving waterways, etc. increasing the risk of inland waterway transport. Hence, accidents such as collisions, groundings, capsizes, oil-spills and fires have occurred repeatedly, causing serious consequences and reducing the navigational capability. Though techniques for maritime risk assessment such as Formal Safety Assessment (FSA) have been broadly used to eliminate or reduce accidents number, there are certain challenges existing due to the uncertainties of data collection and system perception. This paper introduces a few recent case studies in China, Europe and North America dealing with some of the obstacles in maritime risk studies, e.g. identification of Safety Critical Factors (SCFs) and source assignment in emergency response. With respect to the resilience engineering theory, the framework of a resilient inland waterway transport system will be further proposed and illustrated. © 2015 Taylor & Francis Group, London. Source


Zhang J.,University of Lisbon | Zhang D.,National Engineering Research Center for Water Transport Safety Center | Zhang D.,Wuhan University of Technology | Yan X.,National Engineering Research Center for Water Transport Safety Center | And 3 more authors.
Ocean Engineering | Year: 2015

A multi-ship anti-collision decision support formulation is studied in a distributed and real time way. Under the general requirements from COLREGs rules and regulations, the performance of course alteration and changing speed in collision avoidance in some typical encounter situations is graphically analysed for both give-way and stand-on ships. Based on the analysis, the initial decision on collision avoidance by course alteration or speed changing is made according to the encounter situation between own ship and target ships. Linear extension algorithms are designed for both course alteration and speed reduction to keep clearance of all the target ships that own ship should avoid. Simulation results indicate that the anti-collision formulation can avoid collision when all ships have complied with COLREGs as well as when some of them do not take actions. The results also show that in multi-ship encounter situations, the violation of COLREGs by one ship can sometimes bring more difficulties to other ships to avoid collision while undesirable manoeuvre actions have to be taken. © 2015 Elsevier Ltd. All rights reserved. Source

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