Controlled-access highway
China

The expressway network of China, with the national-level expressway system officially known as the National Trunk Highway System (Chinese: 中国国家干线公路系统; pinyin: Zhōngguó Guójiā Gànxiàn Gōnglù Xìtǒng; abbreviated as NTHS), is an integrated system of national and provincial-level expressways in China.

By the end of 2019, the total length of China's expressway network reached 149,600 km (93,000 mi), the world's largest expressway system by length, having surpassed the overall length of the American Interstate Highway System in 2011. Planned length is 168,478 km (104,687 mi) by 2020.

Expressways in China are a fairly recent addition to a complicated network of roads. According to Chinese government sources, China did not have any expressways before 1988. One of the earliest expressways nationwide was the Jingshi Expressway between Beijing and Shijiazhuang in Hebei province. This expressway now forms part of the Jingzhu Expressway, currently one of the longest expressways nationwide at over 2,000 km (1,200 mi).
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