subsidies are provided for passenger train operations. NSB operates long-haul trains, including night trains, regional services and four commuter train systems, around Oslo, Trondheim, Bergen and Stavanger.
There are approximately 92,946 kilometres (57,754 mi) of road network in Norway, of which 72,033 kilometres (44,759 mi) are paved and 664 kilometres (413 mi) are motorway. There are four tiers of road routes; national, county, municipal and private, with only the national roads numbered en route. The most important national routes are part of the European route scheme, and the two most prominent are the E6 going north-south through the entire country, while E39 follows the West Coast. National and county roads are managed by the Norwegian Public Roads Administration.
Of the 97 airports in Norway, 52 are public, and 46 are operated by the state-owned Avinor. Seven airports have more than one million passengers annually. 41,089,675 passengers passed through Norwegian airports in 2007, of which 13,397,458 were international.
The central gateway by air to Norway is Oslo Airport, Gardermoen, located about 50 kilometres (31 mi) north of Oslo with departures to most European countries and some intercontinental destinations. It is hub for the two major Norwegian airlines Scandinavian Airlines System and Norwegian Air Shuttle, and for regional aircraft from Western Norway
