Üsküdar-Ümraniye-Çekmeköy Metro Project, Telecommunication and Signalling Systems Construction Work
Elsitel has completed the design, supply, install and commission the whole Communication System including a total of 42 km in-tunnel railway line and depot lines, and to install Signalling Systems for the Ümraniye – Çekmeköy / Sancaktepe Underground Project, which is the first driverless underground line of Turkey. Metro Line with 16 stations has been put in service.


The following subsystems are installed as part of the Communication and Signalling systems:
CCTV-Closed Circuit Television System
Access Control System
Telephone and Data Transmission System
Central Clock System
Passenger Information System
Announce System
Radio System
Transmission System
On-board Wireless Data Transmission
Driverless Signalling System – interlocking, central contol, wayside equipment, cables