en.Wedoany.com Reported - The Swedish Transport Administration (Trafikverket) has selected engineering consultancy Sweco for a contract worth €40 million (approximately SEK 440 million) to provide planning and design services for a critical section of the Gothenburg–Borås railway line.
The contract, spanning from 2026 to 2030, focuses on the section connecting Mölndal to Gothenburg Landvetter Airport. This project is part of Sweden's major plan to upgrade the existing, severely congested single-track connection into a modern high-speed infrastructure.
Sweco will be responsible for providing environmental impact assessments, hydraulic engineering design, and regulatory permit documentation for this railway section. The scope of work centers on the initial phase of a new double-track passenger line designed for operating speeds of up to 250 km/h. To integrate the new corridor into the existing network, the design must facilitate connections with the West Link and regional express lines serving major hubs such as Gothenburg Central Station, Haga, and Korsvägen. The contract also requires planning for a branch line to Mölnlycke and assessing future station options in Bollebygd and Landvetter Södra. Detailed studies on environmental noise mitigation and grade-separated road crossings will also be conducted ahead of the public consultation scheduled for 2027. The Swedish Transport Administration has not yet announced a final construction start date or the total estimated capital expenditure for the entire line.
The €40 million valuation of this design contract reflects the complexity of integrating high-speed rail with airport infrastructure, comparable in scale to other major Swedish railway planning awards. For context, in 2023, the Swedish Transport Administration awarded contracts of a similar magnitude for the Ostlänken high-speed corridor, where planning and detailed design packages for individual sections typically ranged between SEK 200 million and SEK 500 million. Unlike the Ostlänken project, which has faced multiple scope revisions and budget debates, the Gothenburg–Borås project must maintain compatibility with the ongoing Västlänken underground project in Gothenburg, placing higher demands on technical coordination for Sweco's engineering teams.
The Swedish Transport Administration has decided to separate passenger and freight traffic on this corridor, reserving the original "Coast to Coast" line for freight. As Sweden's railway sector increasingly aligns with the country's expanding low-carbon electricity grid and nuclear power investments—such as the proposed small modular reactor project at Ringhals—this separation ensures freight operators can utilize reliable green electricity without competing for track access with 250 km/h passenger services, consistent with Sweden's broader national strategy for decarbonizing heavy logistics (Source: Power Magazine, 2026). Consequently, this agreement is a key step in building a dual-purpose network capable of supporting both rapid passenger transit and high-capacity green freight corridors.
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