Iilori ezithwala abantu zibalulekile kwishishini lezemigodi kwaye zisetyenziswa njengesithuthi esinomsebenzi oluncedo kakhulu ngabaqhubi kunye nabanye abasebenzi. Abaqhubi bahlala bebandezeleka kukungcangcazela nokungcangcazela ngexesha lenkqubo yokulayisha nokuthuthwa. I-Arex ivavanye impembelelo yelitye kwipleyiti yentsimbi yaza yafumana incopho ye-108 decibels emva koko sisebenzisa i-manganese steel wire mesh njenge-skeleton ngaphakathi kwe-6” rubber liner enokuphucula kakhulu ukuqina kwayo kwaye isiphumo sencopho sibonisa kuphela i-60 decibels ekugqibeleni. Ingcono kakhulu kune-steel liners xa impembelelo kunye nomonakalo usenzeka ngexesha lokulayisha ilitye ebhedini.