Vehicles departing from Guangdong line up to pass the Yuebei (north of Guangdong) toll station of Beijing-Hong Kong-Macao Expressway to enter central China's Hunan Province, Feb. 11, 2015. The number of vehicles entering Hunan from Guangdong on Feb. 10 was estimated to reach 43,000, up 40% year-on-year. The 40-day travel frenzy known as "Chunyun", the hectic period surrounding Spring Festival, which falls this year on Feb. 19, began on Feb. 4 and will last until March 16. (Xinhua/Li Ga)