The main line viaduct of Tongcheng Expressway (the section from Zhanwen Street to the Airport Expressway ) has been completed and will soon be open to traffic. The viaduct is a two-way 6-lane road with a design speed of 80 km/h. After opening, it will greatly improve the north-south traffic conditions for Xiaoshan, enhance traffic capacity, and accelerate the connection between Xiaoshan urban area and all clusters of Hangzhou urban area.