it's a provincial highway. The rapid reconstruction project of Tongjiang Avenue in Wuwei City starts from Hualong Community at the junction of Jiujiang District and Wuwei City. From east to west along Tongjiang Avenue, it adopts the form of ground acceleration+node rhombic interchange, which intersects with S213, Xiaolu and Doujiao Road. After passing through Chaohuang Expressway, it crosses Wuwei East Expressway and Yuxin Road by using the plan of crossing the auxiliary road on the node, which is a provincial road. ProvincialHighway is also called provincial trunk highway. In the provincial highway network, it has provincial political, economic and national defense significance, and has been determined as a provincial trunk highway by the unified planning of provinces, municipalities and autonomous regions.