Project Profile: Limmat Valley Light Rail Transit (Limmattalbahn), Switzerland

The Limmattalbahn is a 13.4 km light rail transit (LRT) system designed to enhance public transport infrastructure in the densely populated Limmat Valley, west of Zurich. Operational since late 2022, the line provides a high-frequency, sustainable mobility solution, mitigating regional traffic congestion and fostering economic development by connecting Zurich-Altstetten to Killwangen-Spreitenbach.

Technical Specifications

The Limmattalbahn operates along a 13.4 km route connecting Zurich-Altstetten station with Killwangen-Spreitenbach. The project’s infrastructure was implemented in two primary phases to manage complexity and streamline commissioning. Phase one covered the section from Zurich Farbhof to Schlieren Geissweid, while phase two completed the critical links from Schlieren to Killwangen-Spreitenbach and from Altstetten station to Zurich Farbhof. Significant civil engineering works included the construction of several bridges and a modern maintenance and storage depot strategically located between Dietikon and Spreitenbach.

The line is serviced by a fleet of eight Stadler Tramlink vehicles. These are bidirectional, 100% low-floor trams designed for high-capacity urban transit. Each 44.3-metre-long, seven-section vehicle has a capacity of 260 passengers (88 seated, 172 standing) and is equipped with seven wide doors per side to optimize passenger flow at stations. The rolling stock is fully air-conditioned and features advanced passenger information systems, reflecting modern standards for comfort and user experience. The system is engineered to operate at a 15-minute frequency, ensuring reliable and efficient service.

Key Takeaways

• Strategic Regional Integration: The project successfully connects key economic and residential hubs in the Limmat Valley—including Schlieren, Dietikon, and Spreitenbach—to the primary Zurich transport network, significantly improving accessibility and reducing dependency on private vehicles.
• Collaborative Funding Model: The project’s CHF 755 million budget was secured through a robust partnership between the Swiss Federal Government (35%) and the cantons of Zurich and Aargau, demonstrating a successful framework for financing major regional infrastructure. An additional CHF 136 million from the Canton of Zurich for associated road improvements highlights a holistic approach to transport planning.
• Advanced Rolling Stock and Urban Design: The deployment of modern, high-capacity Stadler Tramlink vehicles ensures operational efficiency and passenger comfort. The project also served as a catalyst for significant urban renewal, including redesigned public squares and integrated green spaces, enhancing the public realm along the corridor.

Frequently Asked Questions (FAQ)

When did the Limmat Valley light rail open?

The Limmat Valley Light Rail, known officially as the Limmattalbahn, commenced full passenger operations in December 2022. It now provides a complete service connecting the 27 stations between Zurich-Altstetten and Killwangen-Spreitenbach.

Who built the Limmat Valley light rail?

The project was developed and is operated by Limmattalbahn AG. The rolling stock, a fleet of eight Tramlink vehicles, was manufactured and supplied by Stadler Rail. The primary civil engineering and construction works were managed by a consortium of contractors, including Specogna Bau, Scheifele, Strabag, and Aarvia Bau.