
| 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 79 million vehicles run on the Japan's roads. |
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| Road Category | Length (thousand km) |
Paved Ratio (% of length) |
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| National Expressways | 8.0 | 100 | ||||
| National Highways | 55.0 | 99 | ||||
| Prefectural Roads | 129.0 | 96 | ||||
| Municipal Roads | 1,012.0 | 77 | ||||
| Total | 1,204.0 | 80 | ||||
| (at the end of March 2008) | ||||||
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