He mea hanga tēnei hua mai i ngā kirihou ABS ātete-mumura, he ngāwari hoki te whakamahi tāutanga, haumaru me te whai hua, āhuatanga whakamarumaru pai, ātete pānga me ētahi atu. Hanganga hua, ka whakamahia e te hua te hanganga puna kirihou ngāwari teitei ahurei, hei hononga hurihuri i waenga i te papa tirohanga me te papa nui whānui, e whakarei ake i te kaha o te papa tirohanga me te kaha o te papa nui, ka taea hoki te whakatuwhera wawe i te papa tirohanga; ahakoa he tino ngāwari te whakatuwhera me te kati i te papa nā tōna hoahoa mohio, Ka taea e te puna te peke ake i te panera mā te pēhi mārire i te pātene. Ko te roto katoa hononga whenua me ngā pito hononga kore, ka taea hoki te pae parahi huihuinga whakamahia mō te waea, he ngāwari ki te whakamahi.