What is the definition of Safe Speed?

The concept of Safe Speed is defined as the speed at which a vessel can take proper and effective action to avoid collision and stop within a distance appropriate to the prevailing circumstances. This definition encompasses several critical factors, including visibility, traffic density, the maneuverability of the vessel, and prevailing weather conditions or any other factors that could affect navigation.

When a vessel is traveling at a Safe Speed, it can adequately respond to unexpected situations, such as the sudden appearance of other vessels or obstacles in the water. By ensuring that the vessel's speed allows for effective maneuvering, operators can maintain safety on the water, which is a fundamental principle of navigation.

Considering the other options, while they may touch upon aspects of vessel operation, they do not encapsulate the comprehensive nature of Safe Speed. For instance, maximum speed in coastal waters may not always allow for safe navigation if other conditions are not favorable. Similarly, while vessels must proceed at a certain speed in accordance with laws or regulations, this alone does not ensure safety. Lastly, while weather conditions are indeed important in determining safe operating speeds, they are merely one aspect of the broader definition of Safe Speed, which encompasses the overall ability to take necessary actions in any situation that may arise on the water.