As of March 31, 2019, Japan counted a record of approximately 5.1 thousand kilometers of road tunnels, increasing from around 4.32 thousand kilometers in 2014. Most tunnels measure between 100 and 500 meters.
Total length of road tunnels in Japan from 2014 to 2019
(in 1,000 kilometers)
*Data prior to 2019 is as of April 1 of each year stated. Moreover, due to the Tohoku earthquake on March 11, 2011, some of the municipal roads in Fukushima Prefecture have not been included in the data from 2011 to 2018.
The source does not provide an exact publication date. The date mentioned here is the day of data access.
Values prior to 2019 come from previous reports.
Values have been rounded.
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MLIT (Japan). (April 30, 2021). Total length of road tunnels in Japan from 2014 to 2019 (in 1,000 kilometers) [Graph]. In Statista. Retrieved January 19, 2022, from https://www.statista.com/statistics/862721/japan-road-tunnel-length/
MLIT (Japan). "Total length of road tunnels in Japan from 2014 to 2019 (in 1,000 kilometers)." Chart. April 30, 2021. Statista. Accessed January 19, 2022. https://www.statista.com/statistics/862721/japan-road-tunnel-length/
MLIT (Japan). (2021). Total length of road tunnels in Japan from 2014 to 2019 (in 1,000 kilometers). Statista. Statista Inc.. Accessed: January 19, 2022. https://www.statista.com/statistics/862721/japan-road-tunnel-length/
MLIT (Japan). "Total Length of Road Tunnels in Japan from 2014 to 2019 (in 1,000 Kilometers)." Statista, Statista Inc., 30 Apr 2021, https://www.statista.com/statistics/862721/japan-road-tunnel-length/
MLIT (Japan), Total length of road tunnels in Japan from 2014 to 2019 (in 1,000 kilometers) Statista, https://www.statista.com/statistics/862721/japan-road-tunnel-length/ (last visited January 19, 2022)
