The Wunstorf–Bremen railway line is one of the most important lines in the German state of Lower Saxony. It connects the port city of Bremen via Verden an der Aller and Nienburg to Wunstorf, where it connects with the line to Hanover. The 122.3-kilometre-long (76.0 mi), twin-track main line is continuously electrified. The maximum speed is 160 kilometres per hour (99 mph), the maximum axle load is 22.5 tonnes (50,000 lb) and the line is rated as class D4 (the highest class) in the German system of track classification. It was opened on in 1847.
