The 41.256-kilometre (25.635 mi) long line comprises a single double-tracked line north of the city centre, splitting into three branches south of the city centre.

Additional trains run during peak periods, with services reducing to half-hourly overnight.

The interchange with the Saltsjöbanan commuter rail at Slussen is not in use due to reconstruction of the latter line.

[7] A southerly extension of the Blue line of the Stockholm metro is currently under construction and expected to be opened for the passengers in 2030.

[8][9] There are plans to divert the Roslagsbanan commuter rail in tunnel via Odenplan to a terminus at T-Centralen, thus providing interchanges with the Green Line at both those stations.