Roll-On/Roll-Off Ship A roll-on/roll-off (RORO or ro-ro) ship is a vessel designed to carry wheel cargo, like cars, trucks, trailers, etc. As opposed to lift-on/lift-off vessels that use cranes to load and unload cargo, an RO-RO ship relies on self-propelled modular transport that is driven on and off the ship. The term Ro-Ro is mostly … Continue reading What Is A Ro-Ro Ship?