Estimation of ship domain zone

Abstract

The paper discusses the ship domain zone or ship navigation safety area. The navigation safety area around the ship has been the object of research of many authors. Different variants and algorithms have been suggested and the most popular among them are as follows: - navigation safety area around the ship being observed by her own devices, presenting information of the danger of possible collision directly on the bridge; - navigation safety area around the ship when regulating her movement by means of Vessel Traffic Services. The article presents an algorithm for determination and plotting of the navigation safety area, which has the following advantages: - the algorithms give an instant solution to the problem of evading one or more dangerously moving targets; - the calculation may apply the ARPA (Automatic Radar Plotting Aids) algorithm, which does not prevent the navigator from keeping watch. The above mentioned algorithm allows simultaneous plotting of information about the situation around the ship and the data for probable manoeuvring.