What is the main aim of COLREGs and associated practices?

• A. To maximize speed in busy waterways.
• B. To prevent collisions by providing rules, signals, and structured crew coordination.
• C. To make towing always more favorable than self-propelled vessels.
• D. To limit communication between crew.

Answer: (B)

COLREGs aim to prevent collisions at sea by establishing a common framework of rules, signals, and standard practices for how vessels should act in every situation. This includes who must keep clear in head-on, crossing, and overtaking situations, the required navigation lights and day shapes, and the sound signals that indicate intent. It also emphasizes a proper lookout and clear, timely communication among the crew, often through bridge resource management and use of radios and radar. By creating predictable vessel behavior and coordinated actions, the risk of collision is minimized.

Maximizing speed in busy waterways is not the goal; safety and predictable navigation take precedence, including maintaining safe speeds. The idea that towing is always favored over self-propelled vessels is not part of the rules, which depend on the situation and right-of-way principles. Limiting communication between crew would undermine the very coordination COLREGs rely on, since clear signals and timely exchange of information are essential to safe passage.