The development of effective industrial trucks for handling large and small palleted, packaged, or containerised cargo units enabled the use of the roll-on/roll-off principle to be extended, and to also be applied to the deep sea trades.
Inkqubelaphambili elungileyo yetraka zoshishino yokuphathwa kwamaplanga amakhulu namancinci apakishiweyo okanye umthwalo ofakhe entweni yokuphatha uvumela usetyenziso lomqulu okhoyo/umqulu ongekhoyo womgaqo ukuba wongezwe, kwaye usetyenziswe kuthengiso lolwandle olunzulu.