Editing Roll-on/roll-off (section)

{{Short description|Vessels designed to carry wheeled cargo}}
{{hatnote group|
{{Redirect|RORO|other uses|Roro (disambiguation)}}
{{for|RORO trains|Rolling highway}}
{{distinguish|Rollout/Rollin}}
}}

[[File:Roll-on-Roll-off car carrying ship.webp|thumb|Roll-on/Roll-off car carrying ship being boarded by [[articulated hauler]]s at the [[Port of Baltimore]]]]
[[File:RoRo ports and inland waterways.webp|thumb|RoRo ports and [[Inland waterways of the United States|inland waterways]] of the United States]]
'''Roll-on/roll-off''' ('''RORO''' or '''ro-ro''') [[ship]]s are [[cargo ship]]s designed to carry wheeled [[cargo]], such as [[car]]s, [[motorcycle]]s, [[truck]]s, [[semi-trailer truck]]s, [[bus]]es, [[Trailer (vehicle)|trailers]], and [[railroad car]]s, that are driven on and off the ship on their own wheels or using a platform vehicle, such as a [[self-propelled modular transporter]]. This is in contrast to [[lift-on/lift-off]] (LoLo) vessels, which use a [[crane (machine)|crane]] to load and unload cargo.

RORO vessels have either built-in or shore-based [[Linkspan|ramps]] or [[ferry slip]]s that allow the cargo to be efficiently rolled on and off the vessel when in port. While smaller ferries that operate across [[river]]s and other short distances often have built-in ramps, the term RORO is generally reserved for large seagoing vessels. The ramps and doors may be located in the [[stern]], [[Bow (ship)|bow]], or sides, or any combination thereof.