Answer :
In determining safe speed of a vessel we must consider visibility, traffic density etc.
What is safe speed?
The safe speed of a vessel is the maximum speed the vessel can be operated to avoid hazards such as collision, damage of vessel, etc.
Factors considered when determining safe speed of vessels
In determining safe speed of a vessel we must consider the following factors such as;
- Weather condition, eg visibility
- Traffic density,
- Background light at night, etc
Thus, in determining safe speed of a vessel we must consider visibility, traffic density etc.
Learn more about safe speed here: https://brainly.com/question/6504879