Inzitizi yumuhanda wumuhanda igizwe ahanini nibyuma byubatswe inkingi hamwe no kwinjiza amajwi hamwe na panneaux.Inkingi nicyo kintu nyamukuru cyikorera imitwaro ya barrière yijwi, igashyirwa kumuhanda urwanya impanuka cyangwa icyapa cyashyizwemo iruhande rwumuhanda na bolts cyangwa gusudira;Ikibaho gikurura amajwi kandi gikurura amajwi nicyo kintu nyamukuru gikurura amajwi, gishyizwe mumurongo H-nkingi ya H unyuze mumashusho yimbaraga zikomeye kugirango akore inzitizi yijwi.