What do the lines known as “lifeline” primarily serve to do?

The primary function of the lifeline is to prevent falls. Lifelines are typically rigged on ships, especially along the sides of the deck and around areas where there is a risk of falling overboard. They are often made from durable materials, designed to withstand harsh marine environments and ensure the safety of personnel on deck. By providing a physical barrier, lifelines help secure sailors in potentially hazardous areas, reducing the risk of accidents as they perform their duties.

While they may offer some support and can serve other purposes, such as marking boundaries or occasionally being used in signaling contexts, their main purpose is clearly aimed at enhancing safety and preventing falls, making them an essential safety feature on naval vessels.