Swiss people
On 27 September 1992, the Swiss people voted with an overwhelming majority in favour of the NRLA project. In voting "Yes" the Swiss people gave their approval for the construction of two transverse routes through the Alps, one at the Gotthard, the other at the Lötschberg. The original NRLA Lötschberg project provided for two single bore tunnels between Frutigen and the Rhône valley, a distance of . For financial reasons the tunnel length was shortened to , and the greater part of one of the bores was only be constructed as a shell.