Gushyiramo icyuma gikingira inyuma y'urugi ni ugushyira imirimbo myinshi ikomeye y'icyuma itambitse cyangwa itambitse mu gice cy'urugi cya buri rugi, ikigira uruhare mu gice cy'imbere n'inyuma cy'urugi, kugira ngo imodoka yose "iherekezwe" n'ibyuma bikingira inyuma imbere, inyuma, ibumoso n'iburyo, bikore "urukuta rw'umuringa n'urukuta rw'icyuma", kugira ngo abagenzi b'imodoka bagire ahantu hatekanye cyane. Birumvikana ko gushyiraho ubu bwoko bw'icyuma gikingira inyuma y'urugi nta gushidikanya ko byongera ikiguzi ku bakora imodoka, ariko ku bagenzi b'imodoka, umutekano n'umutekano bizarushaho kwiyongera cyane.