In 2011, road density for Japan was 89.7 km per 100 sq.km. Road density of Japan increased from 81.6 km per 100 sq.km in 2002 to 89.7 km per 100 sq.km in 2011 growing at an average annual rate of 1.05%.
The description is composed by our digital data assistant.Road density is the ratio of the length of the country's total road network to the country's land area. The road network includes all roads in the country: motorways, highways, main or national roads, secondary or regional roads, and other urban and rural roads.