Ucango oluvulekileyo olunoyilo olungekho embindini lubonelela ngokujikeleza komoya okugqwesileyo kunye nokuqwalaselwa okufanelekileyo. Uphahla lwe-asphalt oluthambekileyo lunokuwaphambukisa ngokufanelekileyo amanzi emvula ukuthintela ukuqukuqela kwamanzi. Uyilo lwe-slat olungenamthungo lubonelela ngokhuseleko kwimozulu embi kwaye umgangatho ophakanyisiweyo unokuthintela ukugeleza kwamanzi endlwini, unikeze indawo yokuhlala efudumele kunye nekhululekile kwizilwanyana zakho zasekhaya. Ngemingxuma esele igrunjwe ngaphambili, kulula ukuyilandela imiyalelo, kunye nazo zonke iindawo eziyimfuneko ezinikezelweyo, indlu yezilwanyana ezifuywayo inokuhlanganiswa ngokulula. Ukongezelela, uphahla oluxhonyiweyo luvumela ukufikelela lula ngaphakathi kwendlu kunye nomgangatho ophantsi unokususwa ukucoca imihla ngemihla. Le ndlu yezilwanyana ezifuywayo ifumaneka ngobukhulu obuphakathi kunye nobukhulu obukhulu, obunokungenisa izinja, amakati, imivundla, njl. Ngoyilo olulula noluhle, le ndlu yenja ayikwazi ukubonelela ngekhaya elifudumeleyo kwisilwanyana sakho kodwa ihombise igadi yakho.