Figures are 'real lengths'. According to the source, real length of roads refers to the length of roads minus duplicate length (duplicate sections), length not in service (sections for which no notification of commencement of service has been provided) and water length (sections on the sea, rivers, lakes or marshes where ferrying services are available).
Due to the Great East Japan Earthquake, figures after 2010 partly include data for city, town and village roads as of April 1 of previous years.
As of April 1, 2020, the municipal roads length in Japan amounted to approximately **** million kilometers, representing a slight increase from around **** million kilometers in 2011.
The Japanese road network has a hierarchical structure that classifies from bottom to top municipal roads, prefectural roads, national highways, and national expressways. Their classification is based on their function and implicates their jurisdiction, administrator, and financing.
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Statistics Bureau of Japan. (November 21, 2023). Length of city, towns and village roads in Japan from 2011 to 2020 (in 1,000 kilometers) [Graph]. In ÌÇÐÄÆƽâ°æ. Retrieved July 25, 2026, from /statistics/862615/japan-municipal-road-length/
Statistics Bureau of Japan. "Length of city, towns and village roads in Japan from 2011 to 2020 (in 1,000 kilometers)." Chart. November 21, 2023. ÌÇÐÄÆƽâ°æ. Accessed July 25, 2026. /statistics/862615/japan-municipal-road-length/
Statistics Bureau of Japan. (2023). Length of city, towns and village roads in Japan from 2011 to 2020 (in 1,000 kilometers). ÌÇÐÄÆƽâ°æ. ÌÇÐÄÆƽâ°æ Inc.. Accessed: July 25, 2026. /statistics/862615/japan-municipal-road-length/
Statistics Bureau of Japan. "Length of City, Towns and Village Roads in Japan from 2011 to 2020 (in 1,000 Kilometers)." ÌÇÐÄÆƽâ°æ, ÌÇÐÄÆƽâ°æ Inc., 21 Nov 2023, /statistics/862615/japan-municipal-road-length/
Statistics Bureau of Japan, Length of city, towns and village roads in Japan from 2011 to 2020 (in 1,000 kilometers) ÌÇÐÄÆƽâ°æ, /statistics/862615/japan-municipal-road-length/ (last visited July 25, 2026)
Length of city, towns and village roads in Japan from 2011 to 2020 (in 1,000 kilometers) [Graph], Statistics Bureau of Japan, November 21, 2023. [Online]. Available: /statistics/862615/japan-municipal-road-length/
