LAERDAL TUNNEL

The Laerdal Tunnel is 15.23-mile-long road tunnel connecting Laerdal and Aurland in Sogn og Fjordane, Norway. It is the longest road tunnel in the world. The tunnel carries two lanes of European Route E 16 and represents the final link on the new main highway connecting Oslo and Bergen without ferry connections and difficult mountain crossings during winter. The design of the tunnel takes into consideration the mental strain on drivers, so the tunnel is divided into four sections, separated by three large mountain caves at 3.7-mile intervals. While the main tunnel has white lights, the caves have blue lighting with yellow lights at the fringes to give an impression of sunrise.