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公路通车里程2001年底为170万公里。全国公路密度(千米/百平方千米)17千米。根据中国人口分布情况,新疆、西藏、青海、内蒙古四省区,土地面积476万平方公里,但人口甚少。其余27省市土地面积484万平方公里,而人口密集。按四省区公路密度10千米,其余省区60千米计算,中国2025年公路通车里程应达到338万公里,即比2001年通车里程增长1倍。这是可以达到的。
By the end of 2001, the road mileage reached 1.7 million km. National highway density (km / 100 square km) 17 km. According to the population distribution in China, Xinjiang, Tibet, Qinghai and Inner Mongolia provinces cover an area of 4.76 million square kilometers with a small population. The remaining 27 provinces and municipalities land area of 4,840,000 square kilometers, and densely populated. According to the density of four provinces and autonomous regions highway 10 kilometers, the remaining provinces 60 km calculation, China’s highway traffic in 2025 should reach 3.38 million km, that is, traffic mileage than in 2001 increased by 1 times. This is achievable.