Dzinouya muhuwandu hwehukuru, asi dzinowanzozivikanwa ndeye 20 uye 40 tsoka kureba.
Indasitiri yemazuva ano yekutakura midziyo ine chikwereti chakawanda chekubudirira kwayo mukumisikidzwa kwemidziyo.
Midziyo yekutakura inouya muhukuru hwakati wandei, asi maviri saizi akajairika mafiti makumi maviri uye 20 tsoka pakureba. Pane zvikonzero zvinoverengeka zveiyi standardisation:
Kushanda: kuenzanisa saizi yemidziyo inonatsiridza zvakanyanya kugona kwekurodha nekuburitsa zvinhu. Zviteshi, marori, zvitima, uye zvikepe zvemabhokisi zvakagadzirirwa kubata midziyo yehukuru chaihwo. Kusaenderana uku kunofambisa nzira yekufambisa, kunoderedza kudiwa kwetsika yekubata michina, uye inomhanyisa kutakura kutakura zvinhu.
Intermodal kuenderana: saizi yemidziyo yakajairika inowirirana nemhando dzakasiyana dzekufambisa, kusanganisira marori, zvitima, uye ngarava. Iyi intermodal kuenderana inovimbisa kuti midziyo inogona kuchinjika zvisina mutsetse pakati pemhando dzakasiyana dzekufambisa pasina kuda kuendesa zvirimo.
Stacking uye Kuchengeta: Makoniya anowanzo kurongedzerwa uye kuchengetwa mumayadhi emidziyo kana pangarava dzezvikepe. Saizi dzakajairwa dzinoita kuti zvive nyore kurongedza uye kuchengetedza midziyo nemazvo. Saizi dzakasiyana kana midziyo isiri-yakajairwa inogona kuomesa maitiro ekuisa uye kukonzeresa kusakwana mukuchengetedza nekufambisa.
Indasitiri Adoption: Kutorwa kwemidziyo ye 20-foot uye 40-foot sezviyero zveindasitiri kwatungamira kune hupfumi hwehukuru. Vagadziri vanogadzira aya masaizi emidziyo muhuwandu hukuru, zvichiita kuti dzisadhure kugadzira nekutenga.
Cargo Flexibility: Nepo 20-tsoka uye 40-tsoka midziyo ndiyo yakajairwa saizi, ivo vachiri kupa kuchinjika maererano nehukuru hwekutakura. Mabhizinesi anogona kusarudza saizi yemidziyo inonyatsoenderana nezvavanotakura, vachiona kuti nzvimbo inoshandiswa nemazvo uku ichideredza nzvimbo isina chinhu uye mari yekufambisa.
Chibvumirano chepasi rose: Sangano reInternational Organisation for Standardization (ISO) rakagadzira saizi dzemagaba akajairwa muISO 668. Chibvumirano ichi chepasi rose chinobatsira kuona kuenderana uye kuenderana mukutengeserana kwenyika.
Nepo 20-tsoka uye 40-tsoka midziyo ndiyo yakajairika saizi, kune misiyano uye yakakosha midziyo yakagadzirirwa mhando dzekutakura zvinhu. Semuyenzaniso, kune macontainer akareba-cube akareba kudarika macontainer emazuva ese, mafiriji ekutakura zvinhu asinganzwe tembiricha, uye macontainer akavhurika pamusoro pekutakura zvinhu zvakakurisa. Iyi misiyano inopa kumwe kuchinjika kugonesa akasiyana mitoro zvinodiwa uku uchichengetedza mabhenefiti ekumira.