Passengers rush to take trains at the Yinchuan Railway Station in Yinchuan, capital of northwest China's Ningxia Hui Autonomous Region, April 2, 2013. The railway station received a travel rush on April 2 as passengers rushed to return home to sweep the tombs of their deceased relatives during the Qingming Festival holidays, which falls on April 4-6 this year. The Qingming Festival is a traditional Chinese holiday for mourning the dead. (Xinhua/Peng Zhaozhi)

Passengers walk down from a crossover to take trains at the Yinchuan Railway Station in Yinchuan, capital of northwest China's Ningxia Hui Autonomous Region, April 2, 2013. The railway station received a travel rush on April 2 as passengers rushed to return home to sweep the tombs of their deceased relatives during the Qingming Festival holidays, which falls on April 4-6 this year. The Qingming Festival is a traditional Chinese holiday for mourning the dead. (Xinhua/Peng Zhaozhi)

Passengers rush to take trains at the Yinchuan Railway Station in Yinchuan, capital of northwest China's Ningxia Hui Autonomous Region, April 2, 2013. The railway station received a travel rush on April 2 as passengers rushed to return home to sweep the tombs of their deceased relatives during the Qingming Festival holidays, which falls on April 4-6 this year. The Qingming Festival is a traditional Chinese holiday for mourning the dead. (Xinhua/Peng Zhaozhi)