1. the property of the collision: collision with a rigid body, offshore platforms, or another
ship;
2. the strength of the collision: speed, displacement, bow ship, draft, and relative azimuth
of the colliding ship;
3. the condition of the struck ship: displacement, draft, speed, and relative azimuth;
4. environmental conditions: wind, waves, and current;
5. the capacity of the ship’s structure to bear the collision.