The reasoning underlying this view is the increasing trend towards specialisation, both as regards size and speed, and nowadays more particularly as regards the cargo carriage and handling properties.
Unobangela osekelezele kule meko kokunyuka kwemeko zobuchule, kwisantya kwakunye nomlinganiselo, kwaye kulo maxesha sikuwo ingakumbi ekuthwaleni kwemithwalo nakwiimeko zokuphatha imithwalo.