The major renovation, which began 2 October 2026 on the railway line between Lehrte (in the region of Hanover) and Berlin has, according to Deutsche Bahn and several media reports, caused noticeable punctuality problems on the designated diversionary routes. Long-distance trains are currently being rerouted over a wide area via Braunschweig and Magdeburg; at the same time, the parallel Lehrter Stammbahn is only single-track and not fully electrified. As a result, journey times are significantly longer and delays are more frequent than expected.
The DB InfraGO announced the extensive construction work as a coordinated package to renew the track, overhead lines, signalling systems and stations. In its press release on the construction strategy, the railway company outlined a timetable involving diversions from October to mid-December 2026; a complete closure of the western section is planned for a further phase of works in February to July 2027 . The railway company notes that some upgrades to the diversionary route via Magdeburg are needed to accommodate the additional traffic.
However, independent analyses and regional reports show that punctuality on the alternative route is below the long-distance rail average. An analysis by rail tracker Railwise, which has been assessing arrivals and departures since May 2026, indicates particularly high delay rates on services from Hanover to Berlin. Commuters in regions such as Havelland and parts of Lower Saxony have also reported regularly longer journeys to work, overnight hotel stays and shift-work difficulties in critical sectors such as healthcare.
Transport associations and affected local authorities are calling for short-term improvements: keeping train paths clear, better coordination of replacement services and accelerated electrification of individual sections. The Deutsche Bahn notes that additional maintenance work on the diversionary route could improve performance, but also points to scheduling risks for the planned electrification by the end of 2026.
The situation remains dependent on construction progress and decisions on train paths for local and long-distance services. Key dates include the ongoing Phase A works in the east (October to December 2026), the planned full closure west of Lehrte from February to July 2027, and further work through to the end of 2027. It is not currently possible to draw conclusions about the long-term effects on punctuality and passenger numbers without further data; verifiable figures on delays are expected from Deutsche Bahn publications and independent trackers in the coming weeks.
Editor: Mira Cadena (Article created with AI assistance).