Passengers wait at the exit of the railway station in Qingdao, a coastal city in East China`s Shandong province, Oct 7, 2011. China`s railways are especially busy on Friday, the last day of the week-long National Day holiday, as vacationers begin to return to their working places. (Xinhua/Li Ziheng)

Passengers prepare to board a train at the railway station in Qingdao, a coastal city in East China`s Shandong province, Oct 7, 2011. China`s railways are especially busy on Friday, the last day of the week-long National Day holiday, as vacationers begin to return to their working places. (Xinhua/Li Ziheng)