Through this road, Bergen was connected to Oslo by way of Voss, Vinje, Nærødalen, Aurland and through Aurlandsdalen to Geiteryggen. From there it passes through Vierbotn, Sveingardsbotn along Strandafjorden to Hol in Hallingdal. By this road, it was possible to avoid the Kvanndal Kinsarvik ferry over the Hardangerfjord and the Hardangervidda, which was difficult to keep open in the winter time. Even though most of the road could be built to standard width, the tunnels between Vassbygdi and Stonndal were not built to the standard width.