Roll-On / Roll-Off
Roll-on/Roll-off (RO-RO) carriers are specifically designed ships for carrying wheeled cargo- automobiles, trucks, trailers and static cargo that is stowed on a wheeled platform, that are driven on and of the ship either under their own power or by the help of a towing vehicle.
RO-RO vessels are equipped with a built in ramps on which the wheeled cargo is transported on and off the ship.