Gayrettepe Istanbul New Aırport Halkalı Metro

Construction supervision and consultancy of 69.5 km of double tube metro line (TBM) with 120 km/h operation speed. The project includes 17 underground stations, 2 depot areas, 69.5 km double tube TBM metro tunnel, 1500 V DC third rail electrification, all infrastructures works, track works, superstructure and stations, structural, architectural, electrical and mechanical works, signalization & telecommunication works.


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