High Quality Content by WIKIPEDIA articles! Ringerike Line (Norwegian: Ringeriksbanen) is a proposed 40-kilometre (25 mi) extension of the Bergen Line railway from Hønefoss to Sandvika, Norway; reducing rail travel from Oslo to Bergen by 60 kilometres (37 mi) and 50 minutes. Currently trains from the Bergen Line to Oslo must traverse via Drammen on the Randsfjord Line and the Drammen Line, or via Roa on the Roa-Hønefoss Line and the Gjøvik Line.