in Saupark Springe, a game reserve. The station was last used by the German Emperor in 1912. The Kaiserallee and the old station buildings still exist today. It is planned to build stations in Hanover on the line at Waldhausen and Braunschweiger Platz to improve interchange with the Hanover Stadtbahn, but no definite dates have been set. Operations Since 2000 the line has been part of the Hanover S-Bahn and since December 2004 it has been served by S-Bahn line S 5 on the Hanover Airport–Hannover Hbf–Hamelin–Altenbeken–Paderborn route. The trains run every hour, but on Sundays only every two hours between Bad Pyrmont and Paderborn. The frequency of services is improved by additional services at the Hanover end of the line: S 1 and S 2 operate on the line to Weetzen and additional S5 services operate between Hanover and Hamelin. They are operated by DB Regio Niedersachsen, using electric multiple units of DB classes 424 and 425 at speeds of up to 140 km/h. The average speed is 69 km/h. References Footnotes Sources External links Railway lines in North Rhine-Westphalia Railway lines in Lower Saxony Railway lines opened in 1872 1872 establishments in Germany Hanover S-Bahn Buildings and structures in Lippe Buildings and structures in Paderborn (district) Buildings and structures in Höxter (district) Buildings and structures in Hanover Region Buildings and structures in Hameln-Pyrmont