Vehicles run smoothly on the Jiaozhou Bay Bridge, the world's longest cross-sea bridge, in Qingdao, East China's Shandong province, Oct 1, 2012. Chinese government carries out a new policy that has made most expressways in the country toll free for passenger cars with fewer than seven seats during China's eight-day "Golden Week" holiday bridging Mid-Autumn Festival and the National Day holiday. Under this policy, traffic snarled at some expressway toll gates across the country on Sunday. (Xinhua/Li Ziheng)