수도고속도로
The , signed as Route 3 of the Shuto Expressway system and AH1 as a part of that route of the Asian Highway Network, is one of the radial routes of the tolled Shuto Expressway system in the Tokyo area. The elevated expressway was planned as a part of Tokyo's post-war redevelopment before the 1964 Summer Olympics. As a radial route, it travels southwest from its eastern terminus at the Inner Circular Route, Tokyo's innermost ring road in Meguro, to the eastern terminus of the Tōmei Expressway in Setagaya.