methodology for assessing alternatives to reduce ship collisions

by Ronald R. Morgan

Publisher: The Office, Publisher: National Technical Information Service [distributor in Washington, D.C, Springfield, Va

Written in English
Published: Pages: 210 Downloads: 985
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  • Marine accidents.,
  • Collisions at sea -- Prevention.

Edition Notes

Mapping of the ship collision probability in the Strait of Istanbul based on AIS data Y.C. Altan & E.N. Otay. Risk assessment methods for ship collision in estuarine waters using AIS and historical accident data P. Chen, J. Mou & P.H.A.J.M. van Gelder. Risk analysis for maritime traffic in the Strait of Gibraltar and improvement proposal. In case of an accident involving liability problems between the opposing parties, for example, a collision accident with another ship, the degree, and extent of damage of each ship must be confirmed, which generally requires surveys by fair and neutral organizations. This chapter describes the methods for assessing collision risk, where nonlinear structural mechanics and limit state methodologies should inevitably be applied (as described in Chap. 11). As an illustrative example, a collision between two ships is highlighted. Similar procedures can be applied to other types of collisions.   Side collision: This is when one vessel is struck on its side by another vessel. It is essentially the same principal as a T-bone type car accident. Bow-on collision: This occurs when two vessels strike each from their front ends, or head on. Stern collisions: This type of collision is one vessel running into the rear of another.

NMFS analyzed a number of alternatives to reduce ship strikes, in addition to the “no action” alternative. The “no action” alternative was rejected because NMFS has determined that specific action (i.e., vessel speed restrictions) is needed to reduce the threat of ship collisions .   [17] S. Haris, J. Amdahl, Analysis of ship-ship collision damage accounting for bow and side deformation interaction. Mar. Struct. 32 () [18] B. Liu, C.G. Soares, Assessment of the strength of double hull tanker side structures in minor ship collisions. Eng. Struct. () Commerce and trade find a home in the Chesapeake Bay as millions of tons of cargo on ocean-going ships pass through a major shipping channel that spans the length of the Bay’s waters. These large cargo ships are difficult to maneuver, especially in the Bay’s narrow channels, and so they pose safety risks to recreational boaters in smaller vessels. A comparison is provided of the results of various methods for evaluating structure during a ship-to-ship collision. The baseline vessel utilized in the analyses is a meter in length displacement hull struck by an identical vessel traveling at speeds ranging from 10 to 30 knots.

Assessing the Potential for Collision 18 Minimising the Probability of Collision 20 Collision Avoidance Measures 21 ATTENDANT VESSELS 26 Introduction 26 Assessing the Potential for Collision 27 Minimising the Probability of Collision 28 Collision Avoidance Measures 31 Issue 1 December i Ship/Installation Collision. the design process, such as the evaluation of ship collision risks, fire and explosion risks, pollution risks, structural assessment issues, evacuation, escape and rescue, and human factors; • To make observations on how a risk-based approach for assessing the stability of semi-submersibles might be developed in the medium to long term. Ship collision may occur in these form: 1. Stern collision. This kind of collision happens like one vessel running into the rear or stern of another. 2. Board side collision. This is when one vessel is smitten’s on its side by another vessel. 5 ways to avoid ship collision 3. Bow to Bow collision: This occurs when two vessels struck each.   Offshore Risk Assessment was the first book to deal with quantified risk assessment (QRA) as applied specifically to offshore installations and assessment techniques have been used for more than three decades in the offshore oil and gas industry, and their use is set to expand increasingly as the industry moves into new areas and Reviews: 2.

methodology for assessing alternatives to reduce ship collisions by Ronald R. Morgan Download PDF EPUB FB2

Get this from a library. A methodology for assessing alternatives to reduce ship collisions. [Ronald R Morgan; Russell R O'Neill; United States. Coast Guard. Office of Merchant Marine Safety.; University of California, Los Angeles.

School of Engineering and Applied Science.]. A METHODOLOGY FOR ASSESSING ALTERNATIVES TO REDUCE SHIP COLLISIONS r Ronald R. Morgan Russell R. O'Neill University of California, Los Angeles School of Engineering and Applied Science a SIRES bt MAY FINAL REPORT Document is available to the public through the National Technical Information Service Springfield, Virginia   The analytical method to be presented in Section includes the ship motions in the plane of the water surface, and it is valid for arbitrary ship–ship collisions, including different impact locations and collision angles.

The analysis procedure is based on rigid body mechanics, where it is assumed that there is negligible strain energy for.

2. Using Formal Safety Assessment to reduce risks ship strikes An introduction to FSA. The FSA draft guidelines were first adopted by the IMO's Maritime Safety Committee (MSC), at its seventy-fourth session (30 May to 8 June ), and the Marine Environment Protection Committee, at its forty-seventh session (4–8 March ).Cited by: 2.

The management of whale-ship collisions lacks of holistic risk assessment approaches. Similarly to what is done by the ICAO for wildlife-aircraft collisions, Sèbe et al.

() conceptualized a risk assessment approach to ship strikes using IMO's Formal Safety Assessment methodology. Nevertheless, limited knowledge hampers the application of Author: Maxime Sèbe, Christos A. Kontovas, Linwood Pendleton.

An alternative method assessed the collision risk for surface ships in closerange encounters that is compliant with the International Regulations for Preventing Collisions. This method has been successfully applied to various offshore and marine industry accidents (Hughes et al., ), for instance, ship-ship collisions (Brown, ;Faisal et al., ;Kim et.

Alternative Manoeuvres to Reduce Ship Scour - Marcella Castells-Sanabra, Anna Mujal-Colilles, Toni LLull, Jordi Moncunill, F.X. Martínez de Osés, Xavi Gironella. In [3], the author proposes a datadriven method, which can initially estimate the collision probability of the pen tip: it is the probability of the moving ship and the possibility of its position.

VESSEL COLLISION RISK ANALYSIS Methodology AASHTO provides three (3) alternative design methodologies (Methods I, II, and III) in order to furnish the bridge designer flexibility in establishing criteria for ship/barge collisions.

Method II is the preferred. Chai et al. () utilized projected intrusion of ship domain as an alternative method for the collision candidate to further propose a collision risk analysis method in fairways, based on the previous research of Weng et al.

For this group of methods, the drawback is similar to the previous one: involvement of time interval for. This book provides assessment procedures for ship collision and grounding analysis and includes probabilistic methods for collision and grounding risk assessment, estimation of the energy released.

Methods for the risk assessment in maritime transportation in the Black Sea basin Article (PDF Available) in Journal of environmental protection and ecology 13(3A). This research analyzes the ship collision problem in and around United States ports and develops a methodology to allow cost effective assessment of alternatives to reduce ship collisions.

By analytical and statistical means, a mathematical model is developed to predict ship collisions in ports and to evaluate the parameters for Pacific Coast. Efficient maritime navigation through dynamic obstructions at close range is still a serious issue faced by mariners.

There have been studies focusing on collision risk assessment in the past, but the majority were based on the first person perspective, with area-based ship domain concepts that are defined around either the ownship or the obstacle.

Such methods. In addition, among these ship collisions, there is a biggest proportion of crossing collisions (/year), followed by the overtaking collisions (/year) and the head-on collisions (/year).

According to Table 2, the container ship, bulk carrier and oil tanker are the three main types of ships involved in collisions. evaluation of policy alternatives with respect to the use, physical planning and management of the North Sea.

One of these models is the Ship-Offshore platform Collision Risk Assessment (SOCRA) model. This model is described in more detail in this paper. INTRODUCTION Over the years a considerable number of ship-ship collisions have occurred. Collisions should not happen but they do; sometimes with disastrous consequences.

Proper application of the International Regulations for Preventing Collisions at Sea (COLREGs) by every watchkeeper on every vessel is the only way to reduce the risk of collision.

Indeed, if. An intelligent method for real-time ship collision risk assessment and visualization L. Du, O.A. Valdez Banda & P. Kujala. Semi-dynamic ship domain in the encounter situation of two vessels M. Gil, J. Montewka, P. Krata, T. Hinz & S. Hirdaris. A comparison of two definitions of ship domain for analysing near ship-ship collisions.

To assess the risk from ship collisions, a collision energy value of 14MJ has historically been used to represent a collision of a tonne vessel at a speed of 4 knots [Ref.

2 & 3]. This value is typically used to represent a bounding value of collision energy which an installation could withstand without failure leading to fatalities. Finite Element Analysis (FEA) provides an alternative to physical validation that can be used to increase confidence and insight in simplified model results.

This thesis develops a complete methodology for ship-to-ship collision simulations using the explicit non-linear FE code LS-DYNA3D.

Various modeling alternatives are considered. can be taken to prevent ship-bridge collisions and to reduce their consequences.

The scope of the study encompasses bridges--highway, railroad, and a combination of the two. Frequency of Ship-Bridge Collisions The annual occurrence of ship-bridge collisions worldwide increased from between and to between and These.

FIGURE 1 Preliminary Ship Collision Risk Assessment Process FIGURE 2 Detailed Ship Collision Risk Assessment Process FIGURE 3 Idealization of the Ship Collision Strain Energy Balance.

19 FIGURE 4 Three Alternative Approaches to Predicting Facility and. Probable causes of ship collision incidents.

As we all know, collision is a structural impact that occurs between two vessels and may result in severe damages, pollution or even loss of human lives. Most ship collisions have been caused by. lack of communication between vessels, incompetence, poor knowledge, restricted visibility; bad weather.

Assessing the Potential for Collision 30 Reducing the Probability of Collision 32 Vessel Suitability and Vetting 32 Manning 33 Measures to Reduce the Risk of Collisions and Mitigate the Consequences 34 Vessel Operations 34 Installation/Vessel Communications The accuracy of the collision risk assessment is an important factor when evaluating the navigation safety under situation awareness of ship encounter situations.

Since the collision avoidance actions of ship navigators completely depend on the risk of possible collisions or near-miss situations (i.e. within a considerable confidence interval. Ship selection criteria p. 17 Hiding corporate identity p. 18 Shipping accidents as drivers of maritime legislation p.

18 Current Trends/ Data presentation p. 21 Growth of the world fleet p. 21 Total losses by incident type p.

24 Losses by geographical area p. Evaluating ship collision risks Work Performed A method has been developed to calculate the probability of occurrence of a ship collision using AIS data, This provides information on the likelihood and the geographical locations of the collision events Future work A multicriteria ship collision risk index will be developed combining the.

Book Description. Within the last fifty years the performance requirements for technical objects and systems were supplemented with: customer expectations (quality), abilities to prevent the loss of the object properties in operation time (reliability and maintainability), protection against the effects of undesirable events (safety and security) and the ability to restore performance.

The Navy must always balance accomplishing the mission and maintaining readiness. The spectrum of risks associated with ever-increasing OpTempo—especially in Seventh Fleet—must be communicated to all decision makers.

As a warfighting force, we cannot eliminate risk, but SWOs must account for the risks present—to include proficiency and alertness of watchstanders. apportionment of liability in collision cases are highly contributory in the field of legal knowledge also the research is found very useful to the mariners, maritime lawyers, Judges, Ship-owners, Ship managers, agents, operators, charterers, brokers, P&I clubs, hull.The importance of post-collision ship motion and wave generation in the energy balance is now recognized.

The evolving methods are applicable to all types of ship structures, including double hulls. The goals of this research are to allow the designer to evaluate the performance of competing designs in a variety of critical accident scenarios.this method may be limited in the case of conventional ships.

In this paper, a simplified analysis method based on the rigid-plastic deformation is applied to the collision of the ship with anti-collision barriers, and compared with the Minorsky’s formula. For the striking ships, T-2 tanker, which is used in the current regulation of the.