Izmir Commuter Rail System

Izmir/Turkey, 2003–2011

The city of Izmir is the third biggest city of Turkey with the total population of over 3 Mio citizens. The public transport is dominated by bus services. Additionally a light rail line offers connection along the East-West corridor and links the suburbs and the southern downtown.

The project scope includes design, implementation and commissioning of a high-capacity commuter rail service on the basis of the existing but outdated suburban rail infrastructure along the North-South corridor.

The scope of services includes the following work packages:

  • Revision of preliminary studies for completeness and consistency
  • Identification of further elaboration needs and missing detailing level
  • Elaboration of individual high performance operation concept under consideration of the mainline heavy rail traffic and freight trains on the same track
  • Analysis of existing track scheme and proposals for operational improvements
  • Detailed system engineering and preparation of final tender documents of the following issues:
    • Signalling and Train Protection System for 80 km double track line
    • Specification and Procurement of about 50 EMU Train Sets
    • 1 Depot with Light and Heavy Maintenance Workshops
    • 2 additional Stabling Yards
    • Catenary system extension
    • Installation of an Operation Control Center (OCC) as well as Passenger Information and Telecommunication System
    • Integrated Ticketing Concept including Metro, Bus and Ferry
  • Support of tender procedure and bid evaluation
  • Supervision of manufacturing and construction works accompanying of start and initial period of operation.

Specific impacts, mainly during peak hours, caused by the inevitable mixed traffic of commuter,mainline and freight trains on the same track, have been regulated by a fine-tuned timetable, special by-pass areas and defined time slots for slow trains. Individual solutions were to be developed for avoiding severe impacts on passengers in the two tunnel sections. Special attention was drawn by an at-grade crossing of two railway tracks that causes considerable physical as well as operational impacts on a high-performance commuter service. It led to a complex solution matrix under consideration of all relevant interests including shunting activities, harbour operation and the link to a nearby State Railway depot.

Client: Izmir Greater Municipality, Izmir/Turkey