I roto i te ao hangarau me te hanga hou, he mea nui te mahi a ngā whakapiripiri hei hononga i ngā wāhanga. Ina koa, ko ngā whakapiripiri 2520, nā tō rātou hoahoa ahurei me te mahi tino pai, e hanga ana i ēnei hei wāhanga matua hei whakapai ake i te haumaru o ngā hanganga hangarau.