"رول آن رول آف" (Roll-on/Roll-off) is a method of transporting vehicles and cargo using specialized ships. These ships are designed with ramps that allow vehicles to drive on and off easily, making loading and unloading efficient. This system is commonly used for transporting cars, trucks, and even large machinery across oceans. The Roll-on/Roll-off concept is beneficial for both shipping companies and customers. It reduces the time needed for loading and unloading, which can lower shipping costs. Additionally, it minimizes the risk of damage to vehicles since they are driven directly onto the ship rather than being lifted by cranes.