★Umuyoboro - ibyuma bifata ibyuma bifata ibyuma hamwe na PP ikomeza.
★Inzugi zikoresha - inkunga yibyuma hamwe nibikoresho byashyizwe muri FRP.
★Igenzura ryikora ryinzugi zo kwigunga imbere muri tunnel.
★Imikorere yumufana wa acide igihu itera umuvuduko mubi imbere muri tunnel, igihu cya acide cyakozwe no gukaraba aside gifungirwa imbere muri tunnel kandi ntibizashoboka ko igihu cya acide gihunga umuyoboro.
★Amahugurwa yo kubyaza umusaruro nta acide acide, arinda ibikoresho nuburyo inyubako.
★Hejuru hamwe n'amatara arwanya ruswa;
★Kugenzura igitutu kibi.
★Hejuru ya tunnel ifite umurongo muremure wa kashe (urupapuro rworoshye rwa PP);
★Umuyoboro utandukanijwe mubice byinshi byuburyo hakoreshejwe inzugi zikoresha izamuka kandi zigwa.
★Uruhande rwo hanze rwumurongo hamwe na acide isohoka, ihujwe numuyoboro wa acide igihu;
★Idirishya ryo kwitegereza kuruhande rwa tunel hejuru yimikorere.