Gaban gaba yana karɓar ƙarfin tasiri, wanda aka rarraba ta gaban bumper zuwa akwatunan ɗaukar makamashi a bangarorin biyu sannan kuma ana watsa shi zuwa hagu da dama na dogo na gaba, sannan zuwa sauran tsarin jiki.
Ƙarfin tasiri ya shafi baya, kuma tasirin tasirin yana watsa shi ta hanyar bumper na baya zuwa akwatin ɗaukar makamashi a bangarorin biyu, zuwa hagu da dama na baya na baya, sannan zuwa sauran tsarin jiki.
Ƙarfafa tasirin tasiri na ƙananan ƙarfi na iya jure wa tasirin, yayin da ƙarfin ƙarfin tasiri mai ƙarfi yana taka rawar watsawa ta karfi, watsawa da buffering, kuma a ƙarshe canjawa wuri zuwa wasu sifofin jiki, sa'an nan kuma dogara ga ƙarfin tsarin jiki don tsayayya. .
Amurka ba ta la'akari da ƙarami azaman tsarin tsaro: IIHS a Amurka ba ta ɗaukar ƙarfi a matsayin tsarin tsaro, amma azaman na'ura don rage asarar ƙaramin sauri.Sabili da haka, gwajin bamper kuma ya dogara ne akan manufar yadda za a rage asarar da kuma kula da kuɗi.Akwai nau'ikan gwaje-gwajen karo na biyu na IIHS, waɗanda sune gwajin haɗarin gaba da na baya (gudun 10km/h) da gwajin haɗarin gefen gaba da na baya (gudun 5km/h).
