Final answer:
In a crossing situation at sea, the stand-on vessel may take action to avoid a collision by its maneuver alone if the other vessel is not taking appropriate action. Examples of actions include altering the course or speed of the stand-on vessel.
Step-by-step explanation:
In a crossing situation at sea, if you are the stand-on vessel, you have the right of way and the other vessel must take action to avoid a collision. However, if you see that the other vessel is not taking appropriate action to avoid a collision and it becomes clear that a collision is imminent, you may take action to avoid the collision by maneuvering your vessel alone.
For example, if you are the stand-on vessel and the give-way vessel is not altering its course or speed to avoid a collision, you can take action like altering your course or speed to avoid the collision. However, it is important to remember that you should not take action that will confuse or surprise the give-way vessel.
Learn more about Crossing situation, stand-on vessel, collision avoidance