Japan National Route 41  The road generally follows the route of JR Central's Takayama Main Line, except for a few locations around the cities of Takayama and Hida. The northern part of the route is generally used for sightseeing and the southern part is for industry. As a result, the northern areas are generally crowded only on weekends and holidays, whereas the southern areas, especially around Nagoya, have high traffic volume every day. Route 41 was originally designated on 18 May 1953 as National Route 155, and this was redesignated as Route 41 when the route was promoted to a Class 1 highway.