Gupakira, icyongereza izina kontineri.Nibikoresho bigize ibikoresho bishobora gutwara ibicuruzwa bipakiye cyangwa bipakiye kugirango bitwarwe, kandi byoroshye gupakira no gupakurura hamwe nibikoresho bya mashini.

Intsinzi ya kontineri iri mubipimo byibicuruzwa byayo hamwe na sisitemu yose yo gutwara abantu yashizweho.Irashobora gutunganya behemoth ifite umutwaro wa toni mirongo, kandi ikagenda itahura buhoro buhoro sisitemu y'ibikoresho ishyigikira amato, ibyambu, inzira, umuhanda munini, sitasiyo zohereza, ibiraro, tunel, hamwe n’ubwikorezi bwa multimodal ku isi yose hashingiwe kuri ibyo.Ibi rwose birakwiye.Kimwe mu bitangaza bikomeye byaremwe n'abantu.

Igice cyo kubara kontineri, mu magambo ahinnye: TEU, ni impfunyapfunyo y’icyongereza Twenty Equivalent Unit, izwi kandi nka metero 20 yo guhinduranya, nicyo gice cyo guhinduranya kubara umubare wabyo.Azwi kandi nka International Standard Box Unit.Ubusanzwe ikoreshwa mukugaragaza ubushobozi bwubwato bwo gupakira ibintu, kandi nigice cyingenzi cyibarurishamibare noguhindura kubintu byinjira nibyambu.

Ubwinshi mu gutwara ibintu mu bihugu bitandukanye bukoresha ubwoko bubiri bwa kontineri, metero 20 na metero 40 z'uburebure.Kugirango uhuze kubara umubare wibikoresho, kontineri ya metero 20 ikoreshwa nkigice kimwe cyo kubara, naho kontineri ya metero 40 ikoreshwa nkibice bibiri byo kubara kugirango byoroherezwe kubara hamwe ingano yububiko bwa kontineri.

Ijambo ryakoreshejwe mugihe ubara umubare wibikoresho: agasanduku karemano, kazwi kandi nka "agasanduku k'umubiri".Agasanduku karemano nisanduku yumubiri idahinduwe, ni ukuvuga, niba ari kontineri ya metero 40, kontineri ya metero 30, kontineri ya metero 20 cyangwa ikintu cya metero 10, ibarwa nkigikoresho kimwe.