Imbaho zo mu mfuruka cyangwa izirinda impande zitanga uburinzi butandukanye, zigakomeza amasanduku gusa kandi zinoza uburyo bwo guhagarara neza. Zirinda impande n'imfuruka gukubitwa, gushwanyagurika no kwangirika kw'imishumi, ndetse zikarinda ko amapaki afite umutekano agwa, kugongana, cyangwa guhinduka mu gihe cyo kugenda.



