Initial proposals for the Bergens Line route went from Hønefoss via Sandvika to
Oslo Vestbanestasjon (Oslo V), but the proposal met technical and political restrictions. At the time Norway had two
rail gauges: and
narrow gauge . The former was taking predominance over the latter, with among others the
Voss Line, the initial stage of the Bergen Line from Bergen to Voss, being converted from narrow to standard gauge. Drammenbanen, that connected Sandvika to Oslo, was narrow gauge, as was most of the rest of the western network, including the
Vestfold Line; hundreds of kilometers of railway would have to be converted. On the other side of Oslo, the
North Line (now named the Gjøvik Line) was being built as standard gauge; it was considered the new mainline northwards, and was to be connected to the mainline through
Gudbrandsdalen. By building a branch line from Roa to Hønefoss, the Bergens Line could be connected to Nordbanen, allowing standard gauge trackage all the way to
Oslo Østbanestasjon (Oslo Ø). This also gave another advantage, as Oslo Ø was seen as superior to Oslo V; the latter only served limited commuter routes west of town while Oslo Ø was the main station for long-distance trains to Trondheim, as well as
Gothenburg and
Stockholm in Sweden, with whom Norway was in a
union with at the time. Only by terminating at Oslo Ø would direct transfer to trains to other parts of the country be possible. In 1955 the Bergen businessperson
Fritz Rieber launched an idea for the shortening of Bergensbanen; the
Ulriken Tunnel through the Bergen mountains, electrification from Voss to Bergen, and the construction of the Ringerike Line. Private financing would be provided through a dedicated limited company taking a surcharge on tickets, equal to the reduction in fare induced by the shorter line; within twenty years the debt would be covered. Passed by parliament in 1955, a year later they had changed their minds and only the investments around Bergen were supported; removing the support for Ringerike. Prime Minister
Trygve Bratteli commented that private debt financing would have to compete with the debt taken up by the government on other railway projects, since politicians had to see the national economy as a whole, and that private financing would not allow more lines to be built. The cost was estimated at NOK 100 million. As either an alternative or supplement to the line, expansion of
European Road E16 from Sandvika to Hønefoss has been proposed. It would involve increasing from two to four lanes on the first from Bjørum to Hvervenmoen, estimating to cost NOK 3.5 billion; local politicians have suggested
toll road financing.
2000s and 2010s The Ministry of Transport and Communications started an evaluation of the Ringerike Line, carried out by the National Rail Administration, in 2006. The first edition was completed in 2009, but was found to be insufficient, resulting in the process being restarted. A new report was published in June 2011. In September 2012, the ministry concluded that also the second report was insufficient and that it would be discarded. There were two main concerns with the report. Firstly, it was based on a single-track line which would not be built to the standards of high-speed rail. The ministry stated that all new railway plans in Norway were to have double track and be optimized for high-speed rail. Secondly, the report had a simplified economic analysis which was not sufficient to be used for political evaluation. The evaluation were based on the directives given to them and rules valid at the time, but the evaluations of the evaluations showed that the directives had to be updated. The result of the discards was that the planning of E16 was no longer tied to the planning of the railway. In 2015 the railway planning was re-tied to the northern half of the E16 road upgrade which was also delayed.
2020s Local municipalities and regional stakeholders continue to emphasize the line’s importance. In late 2025, the Ringerike Regional Council, along with members of Parliament and organizations such as
Forum Nye Bergensbanen and the
RingHall Alliance, called for urgent action, noting that the project is “ready for construction” but lacks start-up funding and political prioritization. Regional representatives cited resistance from national railway authorities, limited political engagement, and insufficient public pressure as key reasons for delays. Efforts are ongoing to increase visibility, coordinate support across municipalities, and secure initial funding through the national budget. If construction eventually begins, independent planning documents and regional reports estimate Ringeriksbanen could take approximately 10–12 years to complete due to extensive tunnelling and civil works required along the 40 km route. ==References==