New signaling system and new trains
Metroselskabet has launched its largest reinvestment project to date. By 2035, we will integrate a new signaling system and replace the current 42 metro trains on the two oldest metro lines, M1 and M2.
About the project
M1 and M2 to be upgraded with new signaling system and new trains
The new system
In 2035, the current rolling stock will reach the end of its technical life after having transported passengers safely and efficiently around the capital for more than 30 years.
Metroselskabet is among the first in the world to replace one driverless signaling system with another.
Since opening in 2002, metro lines M1 and M2 have been operating with a GoA4 (Grade of Automation 4) signaling system, which enables fully automated operation – without a driver on board. At the time, the system was among the first of its kind in the world. Now, the signaling system is about to be replaced with a new, modern CBTC (Communication-Based Train Control) system, which also supports driverless operation.
The new signaling system will both increase capacity and improve operational reliability.
The final design of the new train fleet has not yet been decided, but Metroselskabet is working on solutions that will both increase capacity and give passengers an even better travel experience. The Metro is already known for its high operational reliability, and with the replacement of the signaling system and train fleet, the goal is not only to maintain this high level of stability, but also to raise the standard even further.
Experienced advisors for the project
In May 2025, Metroselskabet selected the team that will advise on the project through an EU tender process. The choice fell on COWI, WSP, and EGIS—three companies with solid experience from metro projects around the world. Their expertise includes projects in Singapore, Lyon, Lille, and Paris.
The project is expected to be fully implemented in 2035.
Replacement of the Metro's core components
The replacement of the signaling system and trains has a major impact on the Metro's engine room, affecting everything from control rooms and communication systems to maintenance centers and passenger information. The project is thus one of the most comprehensive modernizations in the history of the Metro.
We need to replace the Metro's core components on M1 and M2 while maintaining operations.
The replacement of the signaling system and new Metro trains on M1 and M2 is a project that differs from previous projects carried out by Metroselskabet. Where previous projects have focused on planning, constructing, and subsequently operating new Metro lines, this project involves replacing central parts of the existing system while maintaining operations.
It is a balancing act, where we are modernizing and future-proofing the Metro while thousands of passengers continue to use it every day. This challenge makes the project unique – and crucial for the future of the Metro.