An assessment of ship encounter situations based on predicted points of collision

• Autorzy: Galor W.

Identyfikatory

DOI

10.17402/122

• Języki publikacji: EN

Abstrakty

EN

A number of factors affect the safety of navigation, the collision of two ships being one of them. In ship encounter situations, certain principles of behaviour set forth by regulations are in force. Traditionally, a navigational situation is evaluated by identifying the closest point of approach for the passing ships and by comparing it with the assumed safe distance. Then it is necessary to use technical aids: radar and Arpa (depending on the regulations). In Arpa, navigational situation information is mainly presented in the form of vectors. The other presentation that can be used in an encounter situation is the predicted point of collision (PPC). This is the point or points toward which one’s own ship should steer at her present speed (assuming that the target does not manoeuvre) in order for a collision to occur. This paper presents original results of a study into the assessment of ship encounter situations based on PPC. The methods (analytical and graphical) of PPC as a set of circles are elaborated and an analysis of a ship encounter situation performed.

Słowa kluczowe

EN

encounter situation; collision of ships; radar; ARPA; closest point of approach; predicted point of collision

• Wydawca: Wydawnictwo Naukowe Akademii Morskiej w Szczecinie
• Czasopismo: Zeszyty Naukowe Akademii Morskiej w Szczecinie
• Rocznik: 2016
• Tom: nr 46 (118)
• Strony: 82--87
• Opis fizyczny: Bibliogr. 10 poz., rys.

Twórcy

autor

Galor W.

• Maritime University of Szczecin, Faculty of Navigation 1–2 Wały Chrobrego St., 70-500 Szczecin, Poland

Bibliografia

• 1. Bole, A., Dineley, W. & Wall, A. (2005) Radar and Arpa Manual. London: Elsevier.
• 2. Galor, W. (1978) Sytuacja nadmiernego zbliżenia w ujęciu analitycznym. Materiały Seminarium Naukowego WSM Szczecin.
• 3. Galor, W. (1997) Model sytuacji spotkaniowej statków. Materiały II Sympozjum Nawigacyjnego, Gdynia.
• 4. IMO (1987) Radar Observation and Plotting. Model Course 1.07.
• 5. Lenart, A. (2010) Approach parameters in marine navigation. Theory and application. Gdynia: Wyd. AM.
• 6. Lenart, A. (2015) Analysis of collision threat parameters and criteria. Journal of Navigation 68 (05). pp. 887–896.
• 7. Pedersen, E., Inoue, K. & Tsugane, M. (2003) Simulator studies on a collision avoidance display that facilitates efficient and precise assessment of evasive maneuvers in congested waterways. Journal of Navigation 56 (03). pp. 411–427.
• 8. Riggs, R. (1975) A modern avoidance display technique. Journal of Navigation 28 (2). pp. 143–155.
• 9. Szałapczyński, R. (2009) Numerical algorithm of planning safe ship trajectory for Arpa system. Gdańsk: Wyd. PG.
• 10. Zhao-Lin, W. (1984) Quantification of Action to Avoid Collision. Journal of Navigation 37 (03). pp. 420–430.

Uwagi

PL

Opracowanie ze środków MNiSW w ramach umowy 812/P-DUN/2016 na działalność upowszechniajacą naukę.