The Chunyun， or Spring Festival travel rush， is a large-scale transportation phenomenon in China that occurs around the Chinese New Year. It typically starts 15 days before the holiday and lasts until about 25 days after. During this period， hundreds of millions of Chinese people travel back to their hometowns to reunite with their families. The volume of passenger traffic far surpasses the annual peak of any other country， earning it the title of "the largest human migration on Earth." The government and relevant departments implement a range of measures to ensure smooth and safe transportation. Chunyun is not only a major event in Chinese society but also showcases the capacity and organizational efficiency of China's modern transportation system.

春運(yùn)是中國(guó)在農(nóng)歷春節(jié)前后出現(xiàn)的大規(guī)模交通運(yùn)輸現(xiàn)象，通常從春節(jié)前15天開(kāi)始，持續(xù)到節(jié)后25天左右。其間，數(shù)億中國(guó)人紛紛返鄉(xiāng)與親人團(tuán)聚，客流量遠(yuǎn)超其他任何國(guó)家的年度交通流量峰值，因此被稱為“地表最大規(guī)模的人口遷徙”。政府及相關(guān)部門(mén)會(huì)采取一系列措施，確保交通暢通和安全。春運(yùn)不僅是中國(guó)社會(huì)的重要事件，也展現(xiàn)了中國(guó)現(xiàn)代交通運(yùn)輸系統(tǒng)的承載能力和組織協(xié)調(diào)水平。