Deutsche Bahn Confirms ETCS Level 2 Reactivation on Freiburg–Haltingen

FREIBURG, GERMANY – Deutsche Bahn confirmed that ETCS Level 2, Baseline 3 operations will resume on the Freiburg–Haltingen section and begin on the newly built Müllheim–Schliengen line on December 13, 2026. The approximately 80-km corridor between Gundelfingen and Haltingen was equipped with ETCS without interrupting commercial traffic on what is Germany’s first heavily trafficked main line to undergo such a modernization. Hitachi-supplied Radio Block Centers (RBCs) entered service for the first time in Germany as part of the deployment, which also marks the country’s inaugural simultaneous operation of three train protection systems: ETCS Level 2, LZB, and PZB.

What Are the Technical Specifications?

The ETCS Level 2 Baseline 3 system on the Rhine line operates with continuous radio-based train control via GSM-R, using trackside balises for position calibration and Hitachi RBCs for movement authority management. The integration spans approximately 80 km of track and required the installation of a substantial number of additional balises to support transitions between ETCS, LZB (continuous train control), and PZB (intermittent point-based protection). Tests and acceptance runs validated the three-system transitions, generating operational data that Deutsche Bahn considers a reference baseline for future ETCS expansion across other heavily used German corridors. The section forms part of the European Rhine–Alps Corridor linking Rotterdam to Genoa.

Key Technical Data

Where Does This Technology Stand in the Market?

Germany’s ETCS Level 2 deployment on the Rhine corridor occupies a distinct position among European implementations because it retains full operational coexistence with two legacy national systems — LZB and PZB — rather than replacing them outright. By contrast, Switzerland’s ETCS Level 2 rollout on the Gotthard Base Tunnel (operational since 2016) displaced legacy SIGNUM and ZUB systems on the corridor, though Swiss locomotives retain backward compatibility for cross-border services. Denmark’s nationwide ETCS programme, led by Banedanmark, opted for a full replacement of legacy signalling across approximately 2,600 km of network, a scope far larger in geographic coverage but without the three-system concurrency challenge faced on the German Rhine line. The German approach yields a migration template for other busy mixed-traffic corridors where abrupt legacy system removal would be operationally disruptive. Hitachi’s RBC entry into the German market also disrupts a signalling supply landscape previously dominated by Siemens and Thales in Deutsche Bahn’s ETCS programmes. According to IndexBox market data, Germany’s railway signalling sector was projected to see investment growth through 2025 driven by GSM-R modernization and EU infrastructure alignment programmes (Source: IndexBox, 2025).

Editor’s Analysis

Deutsche Bahn’s decision to pursue three-system concurrency on the Rhine line signals a pragmatic departure from greenfield ETCS thinking — acknowledging that removing legacy LZB infrastructure on corridors with dense mixed traffic is neither technically trivial nor politically neutral. The operational data harvested during the Freiburg–Haltingen test phase will likely shape investment cases for ETCS overlays on other LZB-equipped corridors, including Hamburg–Munich and Cologne–Rhine/Main. Separately, DB’s concurrent construction of a 90-km freight-only line between Offenburg and Müllheim suggests the signalling upgrade and new infrastructure are being sequenced as interdependent capacity measures rather than isolated projects. A full cost figure for the ETCS works has not been made public, which limits independent assessment of cost-per-km benchmarks against comparable programmes in Switzerland or Denmark.

Note: Independent verification of total project cost and the exact length of the new Müllheim–Schliengen line was not available at time of publication.

FAQ

Q: When exactly will ETCS resume on the Freiburg–Haltingen section?
A: December 13, 2026 is the confirmed date for both the Freiburg–Haltingen ETCS reactivation and the new Müllheim–Schliengen line ETCS commissioning. The original restrictions were caused by modernization work tied to the Müllheim–Schliengen infrastructure build.

Q: What is different about this ETCS deployment compared to other German projects?
A: This is the first German installation where ETCS Level 2, LZB, and PZB operate simultaneously on the same section. No other project in Germany has integrated three train protection systems with operational transitions between them, and it is also the first use of Hitachi RBCs on the German network.

Q: Can trains without ETCS equipment still use this section?
A: Yes. Because LZB and PZB remain operational alongside ETCS Level 2, locomotives equipped with only PZB or LZB can continue to traverse the corridor. This has not been officially confirmed for all vehicle types, but the three-system design was specifically intended to avoid forcing a fleet-wide retrofit.