Tourists walk along the green corridor on a smart tourism highway near Meiling National Forest Park in Nanchang, capital of east China's Jiangxi Province, Dec. 26, 2017. The S417 Wangzhao Highway and S106 Jiaowan Highway have completed their upgrades which contain the function of message service, visibility monitoring, automatic snow removal and many other smart functions. A green corridor was also set along the roads which highlights the highway in the tourist area. (Xinhua/Peng Zhaozhi)