Oslo Metro Capacity Boosted by Siemens Mobility New CBTC Technology

Published on December 3, 2025

Siemens Mobility has deployed state-of-the-art Communications-Based Train Control (CBTC) technology on a section of Oslo Metro. This is the first of many advancements to come in the public transport space of the city. The implementation of this technology represents a further step in the optimization of the city’s metro system, as the city transitions towards becoming the first fully emission-free city in the world.

Project Overview and Scope

This project, valued at €270 million, was awarded to Siemens Mobility in 2021. The scope covers the complete overhaul of the old signaling system on the 86-kilometre-long Oslo Metro network. The installation also includes the integration of the new Fornebubanen line, which is an essential part of the metro’s expansion.

The focus of the modernisation effort is to enhance the network’s capacity, providing Oslo’s residents and visitors with a more reliable and frequent transit experience.

CBTC System Implementation and Benefits

The new CBTC system, using Siemens Mobility’s Trainguard MT solution, enables the metro to operate up to 36 trains per hour, a significant improvement over the previous 28-train limit. This capacity boost, a 30% increase, will allow the metro to serve more passengers, particularly during peak hours.

The system is designed to enhance train movement, ensuring smoother operations, reduced delays, and improved frequency of service, all of which are essential for increasing the attractiveness of public transport in Oslo. The flexibility of the system also allows for future upgrades, potentially increasing the train frequency to 40 per hour, raising the capacity by over 40%.

Sustainability and Efficiency Goals

The new system plays a crucial role in Oslo’s sustainable mobility efforts. The city aims to reduce its carbon footprint and achieve zero-emission status. With more frequent and efficient train services, Oslo can encourage greater use of public transport, thus reducing the reliance on private cars. The integration of the Fornebubanen line further extends the metro’s reach, connecting more neighborhoods and making public transport a more viable option for many residents.

The modernisation of the Oslo Metro aligns with broader environmental goals by optimizing the existing infrastructure and promoting greener travel options for all commuters.

Integration of LTE Mobile Network

One of the standout features of this modernisation is the use of a public LTE mobile network for critical train control communications. This is a pioneering approach in Europe, and it offers higher flexibility and reliability in communication between trains and the control center. This technology ensures that any delays or issues can be detected and dealt with swiftly, improving overall service reliability.

Impact on Metro Users and Travel Guide

For travelers using the Oslo Metro, the upgraded system promises a more efficient and comfortable experience. With increased frequency, passengers will have more options to choose from when planning their journeys, reducing wait times, especially during rush hours.

Passengers should be aware of the ongoing metro expansion, which includes the Fornebubanen line. This extension will connect new stations and offer even greater convenience for those traveling to and from central and suburban areas.

Commuters are advised to check for updates on schedules, as train services could shift to accommodate the increased frequency. Information regarding operational adjustments and station details is available on official government platforms.

Conclusion

We are proud to announce that the installation of the CBTC system has been completed, an important milestone for public transport in the city of Oslo. Together with our partner, Sporveien, we have developed an efficient, reliable, and eco-friendly transport system with Siemens Mobility’s advanced technologies. The expansion of the transport system capacity and emission reduction align with the city of Oslo’s initiatives to support sustainable mobility solutions.