On 6 February 2026, DB InfraGO officially launched the general renovation of the high-traffic corridor connecting Hagen, Wuppertal, and Köln, a vital artery for the European rail network. This initiative represents a cornerstone of Germany’s ambitious national “Generalsanierung” (General Renovation) program, a comprehensive federal scheme designed to overhaul 1,500 kilometers of the country’s most overloaded rail sections by 2027. Following the successful completion of the Emmerich-Oberhausen corridor renovation in 2025, the Hagen-Köln project marks the second of ten planned overhauls within North Rhine-Westphalia. The work is being carried out in parallel with a major renovation on the Nuremberg-Regensburg corridor in Bavaria.

The “Generalsanierung” approach represents a strategic shift from traditional, piecemeal repairs to bundling all necessary work into a single, high-intensity phase. By investing €800 million into the Hagen–Köln stretch, DB InfraGO aims to stabilize infrastructure for both regional commuters and international freight traffic between the Benelux countries and Southern Germany. To mitigate the impact of the total closure through 10 July 2026, a massive logistical effort has been deployed, including rerouting ICE trains via Düsseldorf and operating 200 barrier-free replacement buses to maintain regional connectivity.

The technical core of the project involves the complete renewal of 81 kilometers of track, 50 switches, and 29 kilometers of overhead lines. Beyond the tracks, the renovation extends to the passenger experience and the surrounding environment, with the installation of four kilometers of new noise barriers and the modernization of twelve stations, including major hubs like Wuppertal and Solingen Hauptbahnhof. These station upgrades, which focus on barrier-free accessibility, will continue in phases through late 2027. Furthermore, the project serves as critical preparation for the rollout of the European Train Control System (ETCS), ensuring the corridor meets modern digital standards for safety and capacity.

Following the completion of the Hagen-Wuppertal-Cologne corridor works in July 2026, the Generalsanierung programme will proceed into its next high-intensity phase, continuing the step-by-step renewal of Germany’s most heavily used rail corridors. Deutsche Bahn and the federal government have identified roughly forty high-traffic routes for this corridor-based approach, originally targeted for completion by 2030, but now scheduled to extend into the mid-2030s as planning and capacity constraints have been reassessed.

Following the completion of these works in July 2026, the program will proceed to its next high-intensity phase, including the Troisdorf-Wiesbaden corridor and later the Aachen-Köln line. Around forty major routes have been identified for this corridor-based approach, with implementation extending into the mid-2030s. By prioritizing digital interlockings alongside physical renewal, the program aims to increase punctuality by 20%, securing a high-performance backbone for European logistics.