A driver looks out of his car stranded on the Huaihua section of NO 319 national highway in Central China's Hunan province on Jan 4, 2011. 20 sections of four national highways and 10 provincial highways in the province are closed due to thick ice on the road, according to the provincial highway management administration. [Photo/Xinhua]

A driver sets up a tire chain to the wheels while waiting amid a traffic jam on the Huaihua section of NO 319 national highway in Hunan, Central China's Huann Jan 4, 2011. [Photo/Xinhua]