To provide a road where a small-sized road and an ordinary road are both established, so that an introduction of the small-sized road exclusively for compact cars like passenger vehicles is effectively utilized and that width of the road is narrowed to largely reduce a construction fee.

The road is constructed combining both the small-sized road and the ordinary road in such away that the small-sized road established on a road foundation and the ordinary road established over the small-sized road via supports standing on the construction foundation. Alternatively, the ordinary road is established on the road foundation and the small-sized road is established over the ordinary road via supports standing on the road construction.