The Metrobus system commissioned by IETT in order to reduce traffic density in Istanbul's main arteries and provide fast and comfortable transportation was first put into service on the Topkapı-Avcılar line.
Nidaamka 'Metrobus' oo ay wakiishay IETT si loo yareeyo cufnaanta taraafikada ee halbowlaha u ah magaalada Istanbul isla markaana la siiyo gaadiid xawli ku dheehan oo raaxo leh ayaa markii ugu horaysay la adeegsaday khadka Topkapı-Avcılar.