At least one lifebuoy on each side of the ship shall be fitted with a buoyant lifeline, and these lines are often found tightly coiled and bound. How long would it take to unsecure the coils of line in order to deploy the lifebuoy?
The image shows how on this Member ship the crew have constructed a box secured next to each lifebuoy with a line, for the line to be faked into. This is a very good initiative which allows the lifebuoy to be deployed immediately after unhooking and opening the lid of the box. Click on the image to enlarge.