Metrobus is the name of the bus rapid transit

Bus rapid transit

Bus rapid transit is a term applied to a variety of public transportation systems using buses to provide faster, more efficient service than an ordinary bus line. Often this is achieved by making improvements to existing infrastructure, vehicles and scheduling...

 (BRT) system implemented and operated in İstanbul

Istanbul

Istanbul , historically known as Byzantium and Constantinople , is the largest city of Turkey. Istanbul metropolitan province had 13.26 million people living in it as of December, 2010, which is 18% of Turkey's population and the 3rd largest metropolitan area in Europe after London and...

, Turkey

Turkey

Turkey , known officially as the Republic of Turkey , is a Eurasian country located in Western Asia and in East Thrace in Southeastern Europe...

. The name Metrobüs was coined by the transit agency to suggest that this system is a hybrid between a metro train and a bus

The system has its fully separated right-of-way between Avcılar and the western end of the Bosphorus Bridge

Bosphorus Bridge

The Bosphorus Bridge, also called the First Bosphorus Bridge is one of the two bridges in Istanbul, Turkey, spanning the Bosphorus strait and thus connecting Europe and Asia The bridge is located between Ortaköy and Beylerbeyi The Bosphorus Bridge, also called the First Bosphorus Bridge is...

, and also between Söğütlüçeşme and the eastern end of the Bosphorus Bridge

Bosphorus Bridge

The Bosphorus Bridge, also called the First Bosphorus Bridge is one of the two bridges in Istanbul, Turkey, spanning the Bosphorus strait and thus connecting Europe and Asia The bridge is located between Ortaköy and Beylerbeyi The Bosphorus Bridge, also called the First Bosphorus Bridge is...

. The buses travel on the Bridge in mixed traffic.