Total length of roads at 31 December by type of road

.. - data not available

Source: UNECE Transport Division Database.

Definitions:
Road : Line of communication (travelled way) using a stabilized base other than rails or air strips open to public traffic, primarily for the use of road motor vehicles running on their own wheels.
Included are bridges, tunnels, supporting structures, junctions, crossings and interchanges. Toll roads are also included. Excluded are dedicated cycle paths.

Category of road (state roads, provincial roads, local roads) : Classification of the road network according to:
(a) administration responsible for its construction maintenance and/or
(b) according to design standards or,
(c) according to the users allowed to have access on the road.

Motorway : Road, specially designed and built for motor traffic, which does not serve properties bordering on it, and which:
(a) is provided, except at special points or temporarily, with separate carriageways for the two directions of traffic, separated from each other, either by a dividing strip not intended for traffic, or exceptionally by other means;
(b) does not cross at level with any road, railway or tramway track, or footpath;
(c) is specially sign-posted as a motorway and is reserved for specific categories of road motor vehicles. Entry and exit lanes of motorways are included irrespectively of the location of the sign-posts. Urban motorways are also included.

E road : The international “E“ network consists of a system of reference roads as laid down in the European Agreement on Main International Arteries, Geneva, 15 November 1975 and its amendments.

Please note that country footnotes are not always in alphabetical order.

Country: Serbia

Territorial change (2000 onward): Data do not cover Kosovo and Metohija.

Country: Georgia

''Local roads included under ''Provincial Roads''

Country: Hungary

''Local roads included under ''Provincial Roads''

Country: Azerbaijan

''Local roads included under ''Provincial Roads''

Country: Belarus

''Local roads included under ''Provincial Roads''

Country: Croatia

In 2012, the Highway Act came into force and unclassified roads are excluded from other roads

Country: Czechia

Road administration system change since 1 January 2016; most expressways were changed into class II motorways.

Country: Estonia

''Motorways'' refers to first class roads, ''Provincial roads'' refers to local roads, ''Local roads'' refers to forest and private roads

Country: Kazakhstan

For 2008 and data prior to 2006, ''Local roads included under ''Provincial Roads''

Country: Netherlands

''Motorways'' includes communal, provincial and state roads. ''Local roads'' refers to communal and district water board roads. Data are from 1 April.

Country: Norway

Data for state roads and provincial roads from 2010 onward are not comparable with previous years due to the reclassification of approximately 17 000 kilometres of roads.

Country: Portugal

Refers to mainland only. Revision of the classification methodology and the counting of the network in 2012.

Country: Russian Federation

''Motorways'' refers to Category 1A roads of federal, regional or inter-municipal significance, ''State roads'' refers to public roads of federal significance. ''Provincial roads'' refers to public roads of regional or inter-municipal significance.

Country: Slovenia

Break in the time series due to the amended legislation regarding the categorization of national roads in 1998 and 2010.

Country: Sweden

''Other roads'' excludes private roads without operational grants. ''State roads'' includes E roads and national roads.

Country: Switzerland

State roads refer to other national roads. Provincial roads refer to canton roads.

Country: Turkiye

'Other roads' does not include urban roads.

Country: Ukraine

For data prior to 2006, ''Local roads included under ''Provincial Roads''

Country: United Kingdom

Through 1997, 'State roads', 'Provincial roads' and 'Communal roads' refer to Great Britain. E roads refers to Great Britain for all years.

Country: United States

Motorways include Puerto Rico.