Citation

Švetak J, Jakomin L. Promet 2005; 17(6): 295-302.

Copyright

(Copyright © 2005, Faculty of Traffic and Transport Sciences, University of Zagreb)

DOI

10.7307/ptt.v17i6.649

PMID

unavailable

Abstract

This article offers a model of an optimal collision avoidance maneuver which complies with the Collision Avoidance Rules and can be efficiently applied to navigation at sea. The model is based on electronic data collection with a navigation simulator NTPRO-1000 (Transas, Russia). The authors note that the Collision Avoidance Rules themselves to not provide adequate guarantee for avoiding collisions, particularly since 90% of collisions are caused by human errors other than noncompliance with the Rules. The authors report on their model results with rudder angles of 35 degrees and 10 degrees. The research findings confirm that the collision course decisively affects the reliability of general conclusions, as it directly depends on the relative speed of the target observed and on the fact that the algorithm of the maneuver can be developed by dividing the radar screen into sectors. The authors conclude that although the model can offer new approaches in the choice of collision avoidance strategies, a radical decrease of actual collisions will not occur until additional navigation and training for navigating officers becomes the standard.

The results of the data analyses show that accidents mostlyinclude damages to the ship's hull and collisions. Generally allaccidents of ships can be divided into two basic categories.First, accidents in which measures for damage control shouldbe taken immediately, and second, those which require a littlemore patient reaction. The very fact that collisions belong to thefirst category provided the incentive for writing the current paper.The proposed model of optimal collision avoidance manoeuvreof ships on the basis of electronic data collection wasmade by means of the navigation simulator NTPRO- 1000,Transas manufacturer, Russian Federation.

Language: en