A vehicle runs on the 3rd ring road in Kunming, capital of southwest China's Yunnan Province, Dec. 28, 2010. The north and west parts of Kunming 3rd ring road operated for a trial on Tuesday, marking the fully completion of the ring road. [Xinhua]

Vehicles run on the 3rd ring road in Kunming, capital of southwest China's Yunnan Province, Dec. 28, 2010. The north and west parts of Kunming 3rd ring road operated for a trial on Tuesday, marking the fully completion of the ring road. [Xinhua]