ʻAʻole ʻo ka hāpai kaʻa ka mea hou loa. Ua ʻike ʻia nā hōʻailona mua ma mua o 80 mau makahiki i hala, a mai ia manawa, ua hoʻomaikaʻi mau ʻia ka hoʻolālā ʻana o nā kaʻa kaʻa. He palekana kaʻa kaʻa o kēia wā a he lōʻihi kona ola lawelawe. I kēia lā, ʻoi aku ka hilinaʻi o nā kaʻa kaʻa o ka hōʻoluʻolu maikaʻi loa, ʻoi aku ka maikaʻi a me ka noho mālie - ʻo ka hopena maikaʻi loa no nā mea kūʻai kaʻa, nā wahi kaʻa, nā kahua kaʻa multi-level, nā hale keʻena o kahi papa waena. I ka hoʻokomo ʻana i nā mea hoʻokiʻekiʻe kaʻa nani, ʻaʻole koi ʻia nā ramps a me nā puka hou aku - kahi mālama pono o ka wahi hoʻohana, kahi e hōʻemi nui ai i ke kumukūʻai o ke kūkulu ʻana o ka hale.