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Japan has 378,000 km2 of land, about 70% of which is more or less mountainous.
More than 120 million people live in a country with one of the highe stpopulation densities in the world.More than 78 million vehicles run on the Japan's roads.

Road Category Length
(thousand km)		 Paved Ratio
(% of length)
National Expressways 7.6 100
National Highways 54.8 99
Prefectural Roads 129.4 96
Municipal Roads 1,016.1 77
Total 1,207.9 80
(at the end of March 2009)

Total Production of Asphalt Mixture in Japan

Production of Asphalt Mixture by Application

Production of Porous Asphalt Mixture in Surface Course