to Oslo Central Station, bypassing Skøyen to the north on the preferred route. The line only serves Asker, Sandvika and Lysaker (the planned extension will add Nationaltheatret and Oslo Central), and allowed the capacity west of Lysaker to increase from 12 to 26 trains per hour. The Asker Line, allowing speeds at , is used by express and regional trains, along with the Airport Express Train. It is also used by freight trains at night. See also Narrow gauge railways in Norway References Railway lines in Oslo Railway lines in Viken Railway lines opened in 1872 Flytoget Electric railways in Norway 1872 establishments in Norway 3 ft 6 in gauge railways in Norway Standard gauge railways in Norway