The contract covers design, supply and installation
of power and communications systems, Scada, platform screen doors,
communications-based train control, 28 three-car driverless articulated
trains from AnsaldoBreda, and the depot and control centre. The deal
also includes five years' operation and maintenance, with an option for
a further three years.

The line will consist of two 15.5km-long single-bore tunnels linking
the city centre with the bridge district and Frederiksberg,
intersecting with Lines M1 and M2 at Kongens Nytorv in the east and
Frederiksberg in the west. Line M3 will run the full length of the
ring, sharing tracks with Line M4 services which will operate on the
core city centre section between Norrebro, Østerport and the main

The ring will have 17 stations and the longest single journey will take
14 minutes with an average operating speed of 40km/h and peak headways
of 100 seconds. Like the existing lines, M3 and M4 will operate 24
hours a day, seven days a week and are expected to carry a total of
240,000 passengers per day.

Utilities diversion work began on the City Ring last year, while
geotechnical and comprehensive archaeological studies will be completed
this year. Tunnelling will commence at the end of 2011 and will take
around five years to complete. Commissioning will begin in 2017 and the
entire line will open in 2018.