Length of roads in Tokyo metropolis in Japan 2021, by pavement type
As of April 1, 2021, there were approximately 15 thousand kilometers of high-class asphalt roads in Tokyo metropolis, which was the dominant type of pavement. They covered an area of around 116.2 square kilometers.
The overall length of roads in Tokyo, notably standard-improved roads, had been steadily increasing throughout the last ten years. In contrast, unimproved roads had been continuously decreasing in length and area.