Marmaray Project, Signalization and Telecommunication Systems Construction Work
The installation of CBTC and ERTMS Level 1 Train Control System on the mixed traffic line (commuter + high speed line) between Gebze and Halkalı (Istanbul), which connects Asia and Europe via a railway tunnel under the Bosphorus, is carried out by Elsitel. The line spans 76 KM and comprises 42 stations, 4 depot areas, 1 OCC, and 1 BOCC. Elsitel has installed all trackside and indoor signalling equipment.


The project includes the following work items:
- Wayside Signals
Point Machine
Track Circuits
- CBTC
ETCS
Cable Laying, Splice, Measurement and Termination
Equipment Assembly & Verification
Electronic Interlocking
Depot & Logistics
Elsitel has 42 stations and 4 depot sites, where the design, procurement, implementation, testing, and commissioning of the following systems are realized.
Access Control
Telephone System
TETRA Radio System
GSMR
Communication Control Center, DUTS
UPS Systems
Power Distribution Systems
Transmission System
Fiber Optic Backbone
