AH1 at Nihonbashi, Tokyo, the "zero milepost" for measuring highway distances to Tokyo. The 1200-kilometre [1] section in Japan was added to the system in November 2003. [2] It runs along the following tolled expressways: [3] Shuto Expressway C1 Inner Circular Route, Edobashi JCT to Tanimachi JCT via Takebashi JCT.