Hellerud is a station on the Oslo Metro system which is shared by two lines, line 2 (the Furuset Line) and line 3 (the Østensjø Line). These two lines diverge immediately east of the station with the eastbound Furuset Line track first diverging southwards before running under the Østensjø Line in order to avoid having the main tracks cross each other. The lines share the same track and platforms. The station is located in a mostly residential area, formerly called the Hellerud borough.