Roll-on/roll-off ships are ships made to transport wheeled cargo for instance vehicles, trailers or railway carriages. RORO (or ro/ro) vessels have developed-in ramps which allow the cargo being successfully "rolled on" and "rolled off" the vessel when in port. On big passenger vessels, the Catering Office is headed because of https://freightforwardersperth02468.wikikarts.com/4904020/the_basic_principles_of_sea_freight