Estimation of Ship Domain Zone

  • Jelenko Švetak
Keywords: safety of navigation, ARPA, ship domain zone, avoidance of the collision at sea


The paper discusses the ship domain zone or ship navigationsafety area. The navigation safety area around the ship hasbeen the object of research of many authors. Different variantsand algorithms have been suggested and the most popularamong them are as follows:- navigation safety area around the ship being observed by herown devices, presenting information of the danger of possiblecollision directly on the bridge;- navigation safety area around the ship when regulating hermovement by means of Vessel Traffic Se1vices.The article presents an algorithm for determination andplotting of the navigation safety area, which has the followingadvantages:- the algorithms give an instant solution to the problem ofevading one or more dangerously moving targets;- the calculation may apply the ARPA (Automatic RadarPlotting Aids) algorithm, which does not prevent the navigatorfrom keeping watch.The above mentioned algorithm allows simultaneous plottingof information about the situation around the ship and thedata for probable manoeuvring.


Svetak, J., Jakomin, L.: Model of Optimal Collision Avoidance Manouevre on the Basis of Electronic Data Collection, Promet-Traffic-Traffico, Vol. 17, No. 6, 2005, pp. 295-302

liaCKHH, A., MOCKBHH r.: EepeZ06b/e CUCineMbl ynpa6JieIIUROfJlJ:J/CeHueAt cyoo6, M. TpancnopT, 1986

Koburger, C. W., Jr., Vessel Traffic Systems, Comell Maritime PressfTidewater Publishers, Centreville MD, 1986

Rosa L. C., Waiter F. J ., Predicted Area of Danger in Vessel Traffic Services, National Technical Meeting Proceeding, 1999, pp. 515-526

Zec, D.: Upravljanje plovidbom u podrucjima kriianja plovidbenih pravaca, P. H. thesis, University of Rijeka, Rijeka, Croatia, 1994

Goodwin, E. M.: A Statistical Study of Ship Domains, The Journal of Navigation, Vol. 28, No. 2, 1975, pp. 328

Svetak, J.: A Model for the Optimal Manoeuvres to Avoid Collision at Sea Based on Electronic Data Collecting, Ph.D. thesis, University of Ljubljana, Portoroz, Slovenia, 2002

How to Cite
Švetak J. Estimation of Ship Domain Zone. PROMET [Internet]. 1 [cited 2020Feb.23];21(1):1-. Available from: