As of March 31, 2023, simple asphalt roads accounted for **** percent of Japan's total road network length. The road network amounted in total to approximately **** million kilometers.
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MLIT (Japan). (March 31, 2025). Distribution of roads in Japan based on length as of March 2023, by pavement [Graph]. In ÌÇÐÄÆƽâ°æ. Retrieved July 23, 2026, from /statistics/1228460/japan-road-type-share-based-on-length-by-pavement/
MLIT (Japan). "Distribution of roads in Japan based on length as of March 2023, by pavement." Chart. March 31, 2025. ÌÇÐÄÆƽâ°æ. Accessed July 23, 2026. /statistics/1228460/japan-road-type-share-based-on-length-by-pavement/
MLIT (Japan). (2025). Distribution of roads in Japan based on length as of March 2023, by pavement. ÌÇÐÄÆƽâ°æ. ÌÇÐÄÆƽâ°æ Inc.. Accessed: July 23, 2026. /statistics/1228460/japan-road-type-share-based-on-length-by-pavement/
MLIT (Japan). "Distribution of Roads in Japan Based on Length as of March 2023, by Pavement." ÌÇÐÄÆƽâ°æ, ÌÇÐÄÆƽâ°æ Inc., 31 Mar 2025, /statistics/1228460/japan-road-type-share-based-on-length-by-pavement/
MLIT (Japan), Distribution of roads in Japan based on length as of March 2023, by pavement ÌÇÐÄÆƽâ°æ, /statistics/1228460/japan-road-type-share-based-on-length-by-pavement/ (last visited July 23, 2026)
Distribution of roads in Japan based on length as of March 2023, by pavement [Graph], MLIT (Japan), March 31, 2025. [Online]. Available: /statistics/1228460/japan-road-type-share-based-on-length-by-pavement/
