Ukukhanya okuphezulu kwebhuleki ngokuqhelekileyo kufakwe kwindawo ephezulu ngasemva kwesithuthi, ukwenzela ukuba isithuthi esiqhuba ngasemva kube lula ukubona umphambili we-brake yesithuthi, ukukhusela ingozi yangasemva. Ngenxa yokuba inqwelo-mafutha ngokubanzi inezibane ezimbini zokuqhobosha ezifakelwe ekupheleni kwemoto, esinye sasekhohlo kunye nesinye sasekunene, ngoko ke isibane sokuqhobosha esiphakamileyo sikwabizwa ngokuba sisibane se-brake light, isibane se-brake ephezulu, isibane se-brake sesithathu. Isibane sebhuleki esiphakamileyo sisetyenziselwa ukulumkisa isithuthi ngasemva, ukunqanda ukungqubana ngasemva
Izithuthi ezingenazo izibane eziphezulu ze-brake, ngokukodwa iimoto kunye neemoto ezincinci ezine-chassis ephantsi xa zibhula ngenxa yesikhundla esiphantsi sokukhanya kwe-brake yangasemva, ngokuqhelekileyo ukukhanya okwaneleyo, ezi zithuthi zilandelayo, ngakumbi abaqhubi beelori, iibhasi kunye neebhasi ezine-chassis ephezulu ngamanye amaxesha kunzima ukubona ngokucacileyo. Ke ngoko, ingozi efihliweyo yongquzulwano ngasemva inkulu ngokwentelekiso. [1]
Inani elikhulu leziphumo zophando zibonisa ukuba ukukhanya kwebhuleki ephezulu kunokuthintela ngokufanelekileyo kwaye kunciphise ukwenzeka kongquzulwano ngasemva. Ngoko ke, izibane eziphezulu zokuqhobosha zisetyenziswa kakhulu kumazwe amaninzi aphuhlileyo. Ngokomzekelo, eUnited States, ngokwemigaqo, zonke iimoto ezisandul’ ukuthengiswa kufuneka zixhotyiswe ngezibane eziqhoboshekayo ukususela ngowe-1986. Zonke iilori ezikhaphukhaphu ezithengiswa ukususela ngowe-1994 zimele zibe nezibane eziphezulu zokuqhobosha.
