By the 1930s, Oslo had two main railway stations, Oslo East Station and Oslo West Station. The Drammen Line, consisting of commuter trains, and regional and intercity trains from the Sørland Line and the Vestfold Line, terminated at Oslo V. The Østfold, Trunk and Gjøvik Lines terminated at Oslo Ø. Between the two stations ran the Oslo Port Line, which in part ran in the city streets and was only used for a limited number of freight trains. Several plans had been launched to connect the two stations, with the most prominent being a line running west of Oslo and merging with the Gjøvik Line at Grefsen, and an elevated line from Oslo V to Tordensskiolds plass, in a tunnel under Akershus Fortress and again as an elevated line past Oslo Stock Exchange to Oslo Ø.