Svealandsbanan is the Swedish name of the Svealand Railway, which runs between Södertälje and Valskog (near Arboga) via Mariefred Läggesta, Strängnäs and Eskilstuna. The length is 115 km.
The railway was opened between Södertälje and Eskilstuna in 1997. It replaced an older railway from 1895 with a different more curvy route. The part between Eskilstuna and Valskog was built in 1877.
The railway Södertälje-Eskilstuna is built as a high-speed railway with gentle curves that is mainly single tracked. Today trains are allowed to run at 200 km/h, without needing tilting trains. The railway is single track with long passing loops, kind of partial double track, allowing passing with a certain speed.
The passenger trains usually run between Stockholm and Arboga, and the train type in 2009 is normally the SJ X40.
The number of passengers have greatly exceeded expectations and is often used as an example of what a modern railway can accomplish