Avoid Dangerous Situation is an application to estimate and display the potential conditions of rolling resonances or high wave impacts on ships due to specific wave encounter situations.
The wave parameter input enables choosing up to two different wave systems to encounter the ship from different directions and with specific wave periods/lengths or heights.
The area of the result display has been designed as a polar diagram where the ship's speed vector position indicates if the ship is in potentially dangerous conditions. Different colors and line styles indicate areas for synchronous conditions or parametric rolling resonance because of successive high wave group attacks or the danger of surf-riding and broaching.
You can see these effects happening altogether when more than one phenomenon appears in parallel or is selected separately one by one in the specified result display.