Ko ngā pou ārai takai he pou haumaru ā-ringa e whakahaerehia ana, kua hangaia hei whakahaere i te urunga o ngā waka ki ngā ara waka, ki ngā wāhi waka, me ngā wāhi kua herea. Ka taea te tuku ngāwari kia taea ai te haere, ā, ka taea te raka ki te tūranga poutū hei aukati i ngā waka kāore i whakaaetia.