Ko te kerēne piko rua Kbk e tika ana mō ngā awheawhe whānui, ngā whare putunga me ngā wāhi mahi e hiahia ana ki te neke taonga i raro i te 5t, ko te pāmahana taiao e hiahiatia ana ko -20℃ ~ +60℃.

Ko te kerēne kurupae takirua Kbk he kupu whānui mō te kerēne kurupae ngāwari. He mea tito te KBK i te taputapu whakatārewatanga, te ara, te hurihanga, te trolley, te hiki hiko, te taputapu tuku hiko pūkoro me te taputapu whakahaere. Ka taea e ia te kawe tika i ngā rauemi ki te rangi mā te whakairi ki runga i te tuanui, i te anga kurupae rānei o te awheawhe. Ko te āhuatanga o te kerēne whakatārewatanga hiato ngāwari kbk ko te tinana matua o te hanganga maitai he mea tito mai i ngā momo reera, ā, ka taea e ngā huinga rerekē te hanga i ngā momo whakamahinga. Ka whakamahia mō te kawe rauemi i roto i te rārangi, ka taea te hono tika i te kaimahi uta me te kaimahi tango uta, pērā i te kawe i waho, te kawe porowhita, me ētahi atu. He ngāwari ngā ahunga haere o te ara kotahi KBK, e rere ana mai i te rārangi ara kotahi ki ngā ara maha, me te ara porowhita. Nō reira, he māmā ake te urutau ki ngā whakaritenga whakahaere rauemi hou.

Kua hurihia e te kerēne takirua Kbk te māramatanga o te umanga tuku iho o ngā kerēne, kua hurihia te whai huatanga o te mahi, ā, kua whakaratohia he whiringa utu-whai hua ake mō te umanga.

Hei whakarite i te mahi noa o te kerēni, me te karo i ngā whara whaiaro me ngā kino miihini, ko ngā taputapu haumaru e whakaratohia ana e mātou ehara i te mea ko ngā taputapu tiaki hiko, ko te pere whakaoho rānei, engari ko ētahi atu taputapu anō hoki:

1. Pātene Herenga Utaina Nui
2. Ngā Pūwero Rapa
3. Ngā Pūrere Tiaki Hiko
4. Pūnaha Whakamutu Āwhati
5. Mahi Tiaki Iti o te Ngaohiko
6. Pūnaha Tiaki Taumaha o nāianei
7. Punga Rerewē 8. Pūrere Whakawhāiti Teitei Hiki