A word from the director
A brief update on the historic expansion of Stockholm’s new Metro and the current progress. Updated procurement strategies and how industry insights are used to create more balanced and attractive contracts for the next phase of the expansion.
Updated procurement strategy
To further enhance the quality of our projects, we are refining our procurement strategy. By implementing a more sophisticated evaluation model, we aim to better distinguish high-value proposals and ensure that the selected contractor possesses the necessary expertise and reliability to meet the specific requirements of each contract.
Key Principles for the New Evaluation Model
Increased focus on quality
Increased weighting of added values relative to price, which has a greater impact on the final result and ensures that quality truly influences the contract award.
Development of added values
The design of added values is adapted to ensure that the right bid is selected based on the contract's needs and specific conditions.
New scoring scale for greater differentiation
The scoring scale is clarified and expanded to provide greater differentiation in the assessment. The new scale ranges from 0 – 4. The scale is exponential rather than linear.
Implementation of a scoring threshold
Each bid must achieve a minimum score of 1 for all added values; otherwise, it will be rejected. This establishes a clear minimum quality level and helps avoid high-risk or insufficient bids.
Case exercises
Introduction of case exercises to ensure the credibility of the bids.
Introduction to the yellow line to Älvsjö
An overview of the project’s mission to connect Fridhemsplan and Älvsjö, featuring autonomous trains, standardized station designs with high-speed lifts, and the use of tunnel boring machines (TBM). Learn more about the technical solutions and the construction phases as the project prepare to break ground this year.
Overview of Yellow Line sections
Schematic overview of track tunnels with switch sections, launch tunnels for TBM and access/service tunnels. Length indications are approximate and not to scale.
Main procurement phases for the Yellow line to Älvsjö
Procurement is carried out in several stages, with the table above indicating approximate timings for each phase. Procurement of preparatory works, as well as rock and civil engineering for access tunnels and shafts, commenced in 2025. During 2026, we will proceed with the procurement of TBM tunnels and rock and civil works for station areas. In 2027, procurement for the line’s traffic systems will begin, followed by building and installation contracts starting in 2028. Procurement for the new depot will start in 2027 (rock and civil works) and 2030 (building and installation works).
Status and upcoming tunneling works
The strategic decision to merge the civil works for southern stations and TBM works into a single large-scale contract to reduce risk and improve coordination. The update also covers the current permitting status and updated security requirements for international contractors.
Rock and Civil Engineering - Upcomming Procurements 2026
Rock and Civil Engineering procurements 2026
- Årstaberg access tunnel - Ongoing
- Liljeholmen access tunnel - Ongoing
- TBM launch pit - March 2026
- Östbergahöjden vertical shaft - April 2026
- TBM tunnel and southern stations - May 2026
- Fridhemsplan access tunnel and station - May 2026
- Geotechnical structure Liljeholmen - Q4 2026
- Liljeholmen station - Q4 2026
Scope of contract - Southern Stations and TBM
TBM Tunneling
- Design and Build (ABT 06)
- Design, manufacturing, delivery, and assembly of the TBM
- Tunnel drive, full length
- Segmental lining, segment production/installation
Station caverns and vertical shafts
- Årstaberg: Station caverns and vertical shaft
- Årstafältet: Station caverns and vertical shaft
- Östbergahöjden: Station caverns (Vertical shaft will be procurred in a separate contract).
- Älvsjö: Station caverns and vertical shaft
Temporary Technical Safety Installations (STI)
Temporary safety systems during the construction phase (radio, data, positioning, evacuation alarms in tunnels/underground environments)
Temporary Installations (TFI)
Temporary electrical, telecommunications, data, and security systems that are later decommissioned or replaced.
Building and Installation contracts
Key takeaways regarding building and installation contract packaging, compensation models, and sustainability standards. How industry feedback are incorporated to optimize logistics and synergy between station projects, and provides a look at the next steps for upcoming dialogues in late 2026.
Depot, traffic system and vehicles
Information regarding the procurement of a fully integrated autonomous traffic system (GoA4) and the development of the new standalone depot in Älvsjö. Learn more about the upcoming contracts for rock and civil works, building and installation, as well as the new ”Tunnel Systems” scope.
Traffic system
We will procure a complete integrated and proven traffic system, with a clear system and functional responsibility allocated to the supplier.
The traffic system is the critical subsystems that should be integrated to work together as one system and deliver the overall function – efficient and reliable metro operation. The major subsystems are Signalling, Vehicles, Platform screen doors, Power supply and Communication system.
Procurement of the Traffic system will start with qualification first half of 2027.
Depot - Scope of works
Access tunnel (rock and civil works)
The contract for rock and civil engineering works for the access tunnel includes sheet piling and pre-grouting for groundwater control and rock mass stabilization, soil and rock excavation using both cut-and-cover and drill-and-blast techniques, construction of cast in-situ reinforced
concrete tunnel sections as well as permanent rock support installations, utility diversions, and reinstatement works. Tendering is planned for Q3 2027.
Depot building and yard infrastructure (building and installations)
The contract includes foundation works such as piling and ground improvement, construction of reinforced concrete substructures and steel superstructure elements, installation of MEP (Mechanical, Electrical, and Plumbing) systems, and integration of depot-specific equipment. The facility will include a stabling hall, maintenance workshops, a train wash plant, staff facilities, and a wheel lathe. Heavy maintenance areas will be equipped with underfloor lifting systems and overhead travelling cranes. External works will include perimeter security systems, site lighting, trackwork, hardscaping, and landscaping. Tendering is scheduled for Q1 2030.
Tunnel systems
Tunnel systems consist of tunnel installations and system-wide infrastructure. For example:
- Walkways
- Cable support systems
- Tunnel lighting
- Fire protection and fire detection systems
- Drainage and dewatering systems
- Mobile network coverage
- Radio communication systems
- Other associated MEP installations
These works will be procured as separate contracts. The schedule for these procurements has not yet been decided.
Get in touch
Contact our procurament team at upphandling.fut@regionstockholm.se.
