A policeman inspects a newly-arrived vehicle at the highway entrance to Daxindian town, Penglai city, Shandong province. [Photo/dzwww.com]

A traffic officer stands guard amid heavy snow in Yantai, East China's Shandong province. [Photo/dzwww.com]

Staff members check vehicles in at an airport entrance in the Yantai Economic Development Zone. [Photo/dzwww.com]