Since the introduction of cars into china in the early twentieth century, road traffic has begun to develop, and the term “road” has emerged, according to which the establishment of a “road site” in guangdong province in 1920 began to be widely applied domestically. The first road in china was the longzhou-nakan highway, built in 1908 when suwonchun was stationed at the southern border of guangxi, and the longest in the north was the zhang zhang qu road, from zhang's mouth in hebei to kulun, which lasted 965 kilometres. By the end of the northern ocean government (1926), there were 2,6110 kilometres of road miles nationwide. During the twentieth century, asphalt and concrete roads began to appear in cities such as shanghai and tianjin. The previous period of the national party government (1927-1936) was the beginning of the road phase of national construction planning, reaching 117,300 kilometres of road traffic in china as of june 1936. During the anti-japanese war (1937-1945), the road became the main road for land-based transport through the communication of large rear traffic and the opening of international roads. During this period, a total of 14,431 kilometres of road were built and, as of december 1946, the total length of road in china was 130307 kilometres. During the war of liberation (1946-1949), little progress was made in the construction of roads, leaving only 75,000 kilometres of roads accessible throughout the country until the eve of the establishment of the people's republic of china. Throughout the recent history of china's roads, china's highways have developed from nothing to nothing, with many roads being built, mostly muddled and rocky. With regard to scientific research, two test roads were built in nanjing between 1933 and 1941, the cement stabilization soil road near the city of xianyang on the ziran highway in 1937, and the grade-side test road near mount lok on the lucie highway in 1940. In 1932, cold-filled asphalt gravel roads were successfully tested in shanghai. The construction of 155 km of asphalt surfaces and more than 200 pieces of road-building machinery on the phi-myanmar road in 1941 was the beginning of mechanized construction of the road in china。
