“春运（Transportation during the Spring Festival Period）”被认为是规模最大的年度迁徙。这是个特殊的时期，这时的中国面临着极高的交通负荷，从而导致巨大的交通问题，特别是在铁路服务方面。在春节临近的时候，数以百万计远离家乡工作或学习的人要赶回家与家人团聚。这个长久以来的传统是春运高峰的主要原因。还有一个原因，这个假期是每年两个为期一周的长假中的一个，对许多人来说是一个外出旅行的完美时机。
Transportation during the Spring Festival Period is considered to be the largest annual migration. It is the special period when China faces an extremely heavy traffic load, which results in great transportation problems, especially on the railway services. Millions of people working or studying far away from their hometowns will come back home to reunite with their families as the Chinese Spring Festival approaches. This long-held tradition is the main reason for the rush. The other is that the holiday is one of the two long holidays of one week in the year, and for many people, it's a perfect travel time.
