Itara rirerire rya feri muri rusange ryashyizwe kumurongo wo hejuru winyuma yikinyabiziga, kugirango ibinyabiziga bigenda inyuma byoroshye kumenya imbere ya feri yikinyabiziga, kugirango birinde impanuka yinyuma. Kuberako imodoka isanzwe imaze kugira amatara abiri ya feri yashyizwe kumpera yinyuma yimodoka, imwe ibumoso nimwe iburyo.

Itara rya feri ndende rero nanone ryitwa itara rya gatatu rya feri, itara ryinshi rya feri, itara rya gatatu. Itara ryinshi rya feri rikoreshwa mukuburira ikinyabiziga inyuma, kugirango wirinde kugonga inyuma.

Ibinyabiziga bidafite amatara maremare ya feri, cyane cyane amamodoka na mini mini bifite chassis nkeya mugihe feri kubera umwanya muto wurumuri rwa feri yinyuma, mubisanzwe ntabwo urumuri ruhagije, ibinyabiziga bikurikira, cyane cyane abashoferi b'amakamyo, bisi na bisi zifite chassis ndende rimwe na rimwe biragoye kubona neza. Kubwibyo, akaga kihishe ko kugongana ninyuma ni nini. [1]

Umubare munini wubushakashatsi bwerekana ko urumuri rwa feri rwinshi rushobora gukumira no kugabanya kubaho kwinyuma-mpanuka. Kubwibyo, amatara maremare akoreshwa cyane mubihugu byinshi byateye imbere. Kurugero, muri Reta zunzubumwe zamerika, ukurikije amabwiriza, imodoka zose zagurishijwe zigomba kuba zifite amatara maremare kuva 1986. Amakamyo yose yoroheje yagurishijwe kuva 1994 agomba no kuba afite amatara maremare ya feri