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1
Content available Emergency Unberthing without Tug Assistance
Kunieda Y., Yabuki H., Okazaki T.
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
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2015
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Vol. 9, no. 3
367--374
EN
Shipmasters may have to perform unberthing without tugboat assistance when a tsunami warning is issued. Keeping this in mind, we studied emergency unberthing without tug assistance by conducting numerical simulations and full-mission ship maneuvering simulator (SMS) experiments. A panamax class medium-sized bulker and a pure car carrier (PCC) were used as test ships. In the experiments, we established the limitations of basic shiphandling techniques such as stern kick out, backing, and accelerating turn in windy conditions using a mathematical modeling group (MMG)-type mathematical maneuvering model. On the basis of the results, we produced a shiphandling scenario and evaluated it using SMS experiments. We concluded that unberthing without tug assistance in 5 m/s onshore winds is possible. Furthermore, the use of thrusters can greatly reduce the time required for unberthing.
2
Content available Emergency Survey Toolkit for Naval Operations
Conceição V.P.
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
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2015
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Vol. 9, no. 3
375--382
EN
In order to deliver the minimum safety conditions for movement of the ships towards restricted waters, urgent survey operations are required whenever we deal with natural disasters; unreliable chart information or uncharted areas requires. In recent years, there has been a huge development in positioning and survey technology. Simultaneously, charts production techniques and GIS software are easily accessible. In this circumstance, a research project was made in order to assess the possibility of developing existing capabilities of emergency hydrographic survey. The toolkit was designed to allow the swift production of usable bottom representation and survey of navigational aids, with a focus on navigational safety, rather than bottom contour accuracy.
3
Content available Training for Environmental Risks in the Black Sea Basin
Panaitescu F. V., Panaitescu M., Voicu I., Panaitescu I. I.
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
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2014
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Vol. 8, no. 2
205--209
EN
The Potential Emergency Situations Simulator (PESS) for Constantza Maritime University (CMU) should provide training and practicing of the students or course attendants in choosing the best strategies in a given emergency situation, which is an informational high entropy, multi-tasking, fast changing environment. The simulator is used for the realistic modeling of a crisis situation and it is useful for both marine officers and emergency situation officials. The simulator will be used as an educational instrument enabling the interactive study of the different emergency situations. It has the aim of training students to efficiently react to emergency situations such as a leak from a ship/chemical plant, fire, poisonous gas emissions, or any other situations that could show a potential danger. The trainee must be provided with realistic information and the response of the model on the actions of the trainee must be in accordance with the real conditions and scientific based. It must be possible to accelerate the simulation speed without loss of information or functionalities. The input of the external weather conditions is a must, as well as the trainee-oriented graphic interface. It must be possible to change the chemical and physical properties and characteristics of the different polluting agents. The simulator is also used to evaluate the best strategies to be followed in an ongoing crisis. In order to fulfill this aim, the simulation must have the capability to receive data from various sensors, transducers and servers. The courses are designed to accommodate up to six course participants. Each course includes course material such as course manuals and other documents. The courses include hands-on experience with simulator operations and maintenance. To help the start up of the simulated emergency situations training at Constantza Maritime University, we have made a manual which includes some well-designed exercises with scenarios, initial conditions and relevant documentation. The exercise documentation includes the exercise objectives, exercise guidance, instructor guidance, expected results and all other information to make the exercise successful for an inexperienced instructor.
4
Content available Effectiveness Evaluation on Fire Drills for Emergency and PSC Inspections on Board
Wu J., Jin Y., Fu J.
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
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2014
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Vol. 8, no. 2
229--236
EN
The paper evaluates effectiveness of fire drills for emergency and responding to PSC inspections on board. A brief background about the PSC inspection on fire drills on board is introduced in the beginning. Then the significance of effectiveness evaluation on fire drills is presented. Next, legal ground is discussed on International Conventions, including regulation of related regional group, national maritime laws and rules and Concentrated Inspection Campaign (CIC). Furthermore, PSC New Inspection Regime (NIR) for Paris MOU and Tokyo MOU are also discussed, and many deficiencies related to fire safety measures found in the PSC inspection are statistically analyzed. More importantly, the paper introduces System Engineering Theory, presents the principle and method of effectiveness evaluation, focuses on the preparation, performance and rehabilitation of fire drill and develops the Criterion of Effectiveness Evaluation. Finally, some suggestions are raised to carry out effectiveness evaluation for emergency and responding to the PSC inspection.
5
Content available remote The Possibility of Application of Algorithms Indicating Maximum Paths in Directed Graphs for Modeling of the Evacuation Process
Lozowicka D. H.
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
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2010
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Vol. 4, no. 2
227--231
EN
In the introduction, ways of accounting geometrical, population, environment and procedure parameters in the computer evacuation simulating programs have been shown. In the part to follow the meth-od for graph theory based representation of the geometry of escape routes has been described. Besides, means of indicating the longest time of emergency evacuation is proposed using a modified Warshall’s algorithm to find the maximum weights in the directed graph. The use of the algorithm to indicate maximum escape routes makes it possible to verify the arrangement of escape routes in newly designed or existing ships.
6
Content available remote Psychological Features of Seamen’s Activity in Emergency Situations
Bondarev V. A., Bondarev O. M.
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
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2010
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Vol. 4, no. 4
453--457
EN
The rendered material will help to form a clear view of psychological features of human activity in situations concerning increased danger to a person’s existence.
7
Content available Analysis of Factors Affecting the Evacuation of People from Vessels in Life-Endangering Situations
Lozowicka D. H.
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
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2008
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Vol. 2, no. 2
187--189
EN
The trends to build ever larger passenger vessels enforce the necessity of continuous improvement of safety systems on such ships. Sea voyages constitute nowadays an attractive form of spending one’s leisure, which is why people aboard vessels should also have their safety ensured in the case of a necessity to evacuate them. Paper presents the methods of lengthening of the time available for conducting evacuation, shortening the time of becoming aware of the necessity of evacuation and shortening the time of evacuation itself. An interesting concept of signalling the direction of evacuation by means of sound, bound strictly with the way man’s instrument of hearing functions and the way of locating the source of sound is also presented at the paper. A new approach to designing evacuation systems is discussed at the paper. The concept of a “safe haven” is presented.
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