Njengesizinda sethrafikhi esiyisisekelo emgwaqeni, amarobhothi abaluleke kakhulu ukuthi afakwe emgwaqeni. Ingasetshenziswa kabanzi ezimpambanweni zomgwaqo onguthelawayeka, amajika, amabhuloho nezinye izigaba zomgwaqo eziyingozi ezinezingozi zokuphepha ezifihliwe, ezisetshenziselwa ukuqondisa umshayeli noma abahamba ngezinyawo, ukukhuthaza ithrafikhi ...
Funda kabanzi