The Lærdal Tunnel is a 24.51-kilometre-long (15.23 mi) road tunnel connecting the municipalities of Lærdal and Aurland in Vestland county, Norway; the southwest end of the tunnel is approximately 117 kilometres (73 mi) northeast of Bergen. It carries two lanes of European Route E16, and was the final link completing the main highway that now enables car travel between Oslo and Bergen with no ferry connections and no difficult mountain crossings during winter. It is the longest road tunnel in the world, the second being WestConnex in Sydney, Australia.