Kei raro i te whakaaetanga mō ngā waka pūnaha hei whakarite i tētahi raupapa waka e hāngai ana ki te whakamīharo i ngā momo pūnaha katoa, mai i te pūoro me te deisel ki ngā pūnaha bio me te pūnaha whakawhiti. Kua hangaia ngā waka nei me ngā pouaka whakapū pūnaha nui, e ai tahi ana ki te toko rānei, hei whakamana i te tūmanako me te haumaru i te wā e noho ana i runga i te huarahi. He āhua pūnaha whakatō haere tūpato hei whakamahere i te pūnaha me ngā rauemi tuatahi hei whakamātau i te wheako o te pūnaha i whakatōngia. He mea nui ake ngā āhuatanga haumaru, e āhei ana ki ngā pouaka toru-kiri, ngā pūtomo whakamutu ā-wāhanga, me ngā rākau whakatakoto i te pūnaha kua tae ki te horoi i ngā pūnaha me te whakangungu i ngā hoko e pā ana ki ngā pūnaha kaore i te haumaru. Ko ngā waka pūnaha he hononga matua i roto i te raraunga pūnaha, hei whakamana i te tae atu o te pūnaha ki ngā paepae pūnaha, ki ngā wāhi mahi ā-iwi, me ētahi atu kaiwhakamahi i te wā tika me te haumaru.