Common Tunnel - Service

Service

All six lines of the Oslo Metro, numbered 1 through 6, run through the Common Tunnel. Each service has a 15-minute headway, which is increased to 30 minutes in the late evening and early on Sundays. In addition, Line 5, which runs on the Grorud Line, has its headway reduced to 7.5 minutes, but the extra trains all terminate at Stortinget. Travel time from Majorstuen to Tøyen takes eight minutes. The tunnel is the bottleneck of the metro, with a capacity for 24 trains per hour in each direction west of Stortinget, and 28 east of Stortinget.

Transfer to the Oslo Tramway is available at four stations, Majorstuen, Nationaltheatret, Stortinget and Jernbanetorget. Transfer to the mainline railway is available at Nationaltheatret to the railway station with the same name, and at Jernbanetorget to Oslo Central Station (Oslo S). Nationaltheatret offers shorter transfer distance, but only serves trains along the Drammen Line. Interchange with buses is possible at all stations except Grønland. Majorstuen acts as an interchange between the western lines, while transfer between the eastern lines can be done at Tøyen. The public transport authority Ruter recommends that interchange between lines in the same direction should be made at Grønland.