BEIJING, April 3, 2016 (Xinhua) -- Photo taken on March 24, 2016 shows the Huayuan Road overpass in Zhengzhou, capital of central China's Henan Province. Zhengzhou has completed 299 traffic projects to reduce traffic pressure by the end of November, 2015, adding driving roadways of 355.5 kilometers. (Xinhua/Li Bo)
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