Istanbul Metro 4.Levent- Ayazaga

Construction Supervision of 13.731 km metro line. The project includes 3 underground stations, 9,832 m single tube main line tunnel (type A), 1,295 m single tube station platform tunnel (type P), 403 m single tube station platform tunnel (type PI), 620 m single tube switch tunnel (type T), 840 m single tube station access tunnel (type Bl), 381 m single tube main line access tunnel (type B2), 360 m single tube station tunnel (type B3), depot area, warehouse and other facilities

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