SPEED MUTATION EVOLUTIONARY SHIP TRAJECTORY PLANNING IN NAVIGATION TRAFFIC AREAS

摘要

In heavy navigation traffic areas, as well as within coastal zones, correct selection of ship's speed, when accompanied by necessary rajectory changes, is a crucial element od safe navigation. The paper presents a modernised version of the evolutionary ship trajectory planning system, in which a new parameter was introduced, namely the changes of ship's speed along particular sections of the trajectory. Generally, a safe trajectory is estimated using specialised genetic iperators for modifying the trajectory. Here, an additional operator was added to the system that mutates the ship's speed. Sample results present the safe trajectory for a ferry meeting other moving ships and navigational constrains on its way.