What is the significance of odd numbers on buoys?

Odd numbers on buoys are significant because they indicate can buoys that are positioned on the port side (the left side when traveling upstream). This numbering system is an essential aspect of navigational aids, as it helps boaters identify their location on waterways and enhances safety. The use of odd numbers aids in distinguishing these buoys from their counterparts, which are even-numbered and placed on the starboard side (right side when traveling upstream). This system of numbering is part of a broader marking scheme that helps prevent collisions and ensures that boaters are aware of their surroundings, such as safe passage and potential hazards. Understanding this buoy system is crucial for navigation and compliance with regional boating regulations.