Route 420 is a national highway of Japan connecting Toyota, Aichi and Shinshiro, Aichi in Japan, with a total length of 66.5 km (41.32 mi). "一般国道の路線別、都道府県別道路現況"...

National Route 1 (国道1号, Kokudō Ichi-gō) is a major highway on the island of Honshū in Japan. It connects Chūō, Tokyo in the Kantō region with the city...

National Route 7 (国道7号, Kokudō Nanagō) is a major north-south national highway on the Sea of Japan side of the island of Honshū, Japan. It traverses four...

National Route 4 (国道4号, Kokudō Yongō) is a major national highway in eastern Honshū, Japan. Measuring 738.5 kilometers long (458.9 mi), it is the longest...

(in Japanese). 2 February 2019. Retrieved 1 March 2019. "高速自動車国道等の最高速度" (in Japanese). Retrieved 4 July 2023. https://newsonjapan.com/article/127903...

Archived from the original on 2014-10-06. Retrieved 30 September 2014. "国道109新线饮马鞍隧道开挖进尺突破4000米！". j.021east.com. Retrieved 2022-05-22. "景文3标项目叶麻尖1#隧道顺利进洞施工"...

"新突破！城开高速控制性工程吴家梁隧道掘进4000米大关_高速公路". www.sohu.com. Retrieved 2020-10-11. "国道109新线高速公路饮马鞍特长隧道贯通_北京市_交通_门头沟区". www.sohu.com. Retrieved 2024-06-25. "景文3标项目叶麻尖1#隧道顺利进洞施工"...

death, 32 injuries; national highway 212 blocked (四川省广元市青川县6.1级余震造成1人死亡32人受伤 国道212线中断)". China Earthquake Administration. August 6, 2008. Archived from the...

and Takahama, Aichi in Japan, with a total length of 62.4 km (38.77 mi). "一般国道の路線別、都道府県別道路現況" [Road statistics by General National Highway route and prefecture]...

Ōmihachiman, Shiga in Japan, with a total length of 72 km (44.74 mi). "一般国道の路線別、都道府県別道路現況" [Road statistics by General National Highway route and prefecture]...