DB InfraGO Balances €19bn Investment with Record Network Pressure

Germany’s rail network has seen one of its busiest construction years on record, with DB InfraGO investing more than €19 billion in infrastructure in 2025 as work intensified across tracks, stations, and signalling systems nationwide.

According to Deutsche Bahn, work progressed across around 26,000 construction sites nationwide, covering track renewals, station upgrades, and the expansion of digital signalling. The programme reflects both growing political pressure to improve reliability and the operational reality of running an increasingly busy network while large-scale construction continues.

Deutsche Bahn plans to invest 28 billion euros in 2026 to upgrade its railway network, including modernization of existing infrastructure, digitization, and station improvements, as stated by Philipp Nagl, head of DB InfraGo. In 2025, the company invested around 19 billion euros,…

— Aleksandar Djokic (Александар Джокич) (@polidemitolog) December 28, 2025

Balancing Construction Pressure with Daily Operations

DB InfraGO, Deutsche Bahn’s public-benefit infrastructure arm, reports that 2,065 switches were renewed and 2,173 kilometres of track rebuilt in 2025, broadly maintaining the pace seen in recent years. At the same time, around 950 stations were modernised, with a growing focus on treating stations as integrated mobility hubs rather than isolated assets.

Signalling remains a critical bottleneck. In 2025, 60 new signal boxes were commissioned, compared with around 40 in previous years, while more than 4,000 signalling units were renewed. The roll-out of ETCS also continued, expanding the equipped network to 683 kilometres, with 157 kilometres added during the year.

DB InfraGO chief executive Philipp Nagl acknowledged that maintaining service levels while delivering this volume of work remains one of the company’s biggest challenges. "Operating and construction at the same time remains a major task," he said, noting that around one billion train-kilometres are still expected to be operated annually even as construction activity increases further in 2026.

Several flagship projects shaped the 2025 programme. These included continued work on the Hamburg–Berlin corridor renovation, the return of services on the Dresden–Anhalter line, and the full reopening of the Ahr Valley Railway, which was heavily damaged during the 2021 floods. On the 29-kilometre Ahr route alone, tracks, bridges, tunnels, and stations were rebuilt, alongside the installation of modern signalling and new overhead lines for electric operation.

Elsewhere, DB InfraGO completed the four-track expansion between Fürth and south of Bamberg, one of Germany’s busiest corridors, while also finishing major works on the Karlsruhe–Basel route and at the electrified border crossing at Bad Schandau, a key link for international freight traffic into the Czech Republic.

Beyond high-profile corridors, DB InfraGO has increasingly focused on smaller, targeted measures designed to improve capacity and punctuality more quickly. These include new crossover facilities, additional signals, and platform upgrades at major hubs such as Frankfurt, Berlin, and Stuttgart, largely financed through federal climate funding and DB’s own resources.

Staffing has become another strategic focus. By the end of 2025, DB InfraGO expects to have hired approximately 8,000 new employees, including thousands of construction supervisors and maintenance specialists, while expanding its training capacity for train traffic controllers. The company reports a 99% staffing coverage rate in signal boxes, a key metric amid ongoing concerns over operational resilience.

While Deutsche Bahn points to rising investment levels and record numbers of operators using the German network, industry observers continue to warn that the real test will be whether these programmes translate into measurable improvements in reliability and capacity in the coming years, especially as construction activity is set to intensify further in 2026.