Sariyer - Ayazaga - ITU Railway System
Tendered by Istanbul Metropolitan Municipality, Sariyer - Ayazaga metro line was constructed by Ultra Technology. The line is 8.3 km long and includes 9 stations. Prota’s services included; track-way alignment engineering, preparation of route alternatives, selection of the most appropriate route based on surveying studies, determining the location of stations, preliminary design of stations, preparation of operational scenarios and development plan along with financial and economic feasibility studies. In 2023, it is estimated that the line will carry 107.700 passengers daily.