DB InfraGO CEO Philipp Nagl Reports 40 Percent More Rail Delays
The number of train delays caused by damaged infrastructure across Germany’s rail network rose by 40 percent in 2026, according to figures released by DB InfraGO CEO Philipp Nagl in an interview with the weekly newspaper Die Zeit. The sharp increase highlights persistent vulnerabilities in the national rail system despite corridor renovation programs designed to overhaul aging tracks, switches, and overhead lines.
Extreme Weather Increases Rail Infrastructure Delays
Severe seasonal weather conditions exacerbated the strain on the national rail grid during the year. A very cold winter at the beginning of 2026, alongside a very hot summer, caused infrastructure facilities to be heavily strained, leading to a 40 percent increase in delay cases due to disturbed infrastructure as reported by Philipp Nagl. That severe weather was followed by a very hot summer, which further punished the physical assets of the railway network.
Extreme temperatures damaged the infrastructure while simultaneously preventing rapid repair work, according to Nagl’s statements in Die Zeit. Across Germany, switches, overhead lines, and signal boxes are breaking down faster than maintenance crews can fix them, leaving the system in a constant state of reactive triage.
Renovated Corridors Remain Unpunctual After Reopening
To reverse decades of underinvestment, DB InfraGO began implementing large-scale corridor renovations in 2024, closing major trunk routes for several months at a time to rebuild them from the foundation up. However, these massive closures have faced intense scrutiny from federal officials, including Federal Steffen Bilger (CDU), because train operations frequently remained unpunctual even after the reopening of newly renovated sections, as detailed by WELT.
Addressing specific failures on the newly upgraded Hamburg–Berlin route, Nagl explained that the signaling and control technology was not yet fully operational when passenger service resumed. Because high-speed trains rely on specialized automated train protection systems, the tracks effectively require a secondary technical approval process after construction concludes. While those system checks could theoretically be performed during the initial closure period, doing so would force regional and freight trains—which do not require the high-speed signaling equipment—to wait even longer for lines to reopen.
Phased Restarts And The Long Timeline To Network-Wide Recovery
DB InfraGO has confirmed that all final test runs for the disputed signaling installations concluded over the weekend. To prevent immediate operational congestion upon reopening future construction corridors, the rail infrastructure operator plans to implement a gradual restart protocol, avoiding the immediate release of full traffic loads onto newly finished tracks.
While the rail operator maintains that trains run more reliably on newly modernized segments than they did prior to construction, passengers across the broader network will have to wait years for a generalized improvement in punctuality. Nagl indicated that the broader “radiation effect” of the renovations will only become noticeable once the most complex corridor projects are fully completed. The modernization of the Berlin–Hannover line is scheduled to run through the end of next year, followed by the heavy overhaul of the Hamburg–Hannover corridor in 2029. Only once those principal high-volume arteries are finished, according to the DB InfraGO leadership, will punctuality figures recover across the entire German rail network.