 During construction of the Voss Line from Bergen to Voss , there was a proposal to extend the line from Voss to Granvin on the Hardangerfjord . The plans were again taken up to consideration with the construction of the Bergen Line , but also this time the plans were scrapped . Some people wanted the line to be a tramway and when it was passed by the Parliament of Norway on 12 July 1919 ; the plans incorporated some elements of a tramway , giving the line a lower standard than the mainline . The railway was to be built electrified , and construction started in 1921 . However , there was a lack of engineers , forcing a slow pace . On 5 November 1923 , parliament passed the final plans for the railway , and the pace of construction was accelerated . 
