What is the main purpose of the twin donut roll?

The main purpose of the twin donut roll is to create a compact roll for easy carrying. This method effectively organizes hose for transport while minimizing the volume the roll occupies, making it easier to handle, move, and manage during firefighting operations. The twin donut roll lays flat and allows for efficient handling, ensuring that firefighters can quickly grab and carry hoses without them tangling or taking up excessive space.

While there are benefits associated with other options, they do not capture the primary intent of the twin donut roll as effectively. For instance, providing connections to couplings or allowing deployment while holding couplings has its own techniques and does not specifically highlight the purpose of the donut roll. The focus of the twin donut roll on compactness and easiness of carry is why it's favored in training and practice for efficient hose management in firefighting.