Ro-ro (roll-on/roll-off) ships facilitate the transport of wheeled cargo such as cars, trucks, and trailers

https://www.scribd.com/document/774159642/Inspiring-YoungYoungerYouthful-Innovators-Robotics-for-Kidsfor-youthsfor-teenagersfor-children-231507

Ro-ro (roll-on/roll-off) ships facilitate the transport of wheeled cargo such as cars, trucks, and trailers