Pjatakov E. Perfection of methods of co-ordination of vessels for prevent collisions

The analysis of possibilities of synthesis of the system of forming of strategies for prevent collisions of group of vessels by development of structure of the two-tier hierarchical system was a next stage of research, one of levels of which contains the great number of elementary strategies for prevent collisions of vessels making the group of co-operation. The second level of the hierarchical system contains procedures of forming of general strategy for prevent collisions from elementary. In case of occurring of situation of dangerous rapprochement ships must undertake the united actions for the increase of distance of the shortest rapprochement. Therefore the united actions of vessels, I.e. their pair strategies for prevent collisions , including both change of parameters of mo-tion of one of ships and both, the more effectively, than the change of distance of the shortest rap-prochement at their use is more considerable. It is shown in work, that the change of distance of the shortest rapprochement is proportional to the increase of relative course at that initial situation. Therefore, were on the go collected depend-ences of increase of relative course from each of possible pair strategies for prevent collisions of vessels. Correlations between pair strategies for prevent collisions of vessels and situations of maximal increase of distance of the shortest rapprochement proper to them, and which in an aggre-gate form the structure of the effective systems of binary co-ordination, were then exposed.