It starts from Leigao Road (K1 + 280) in the east and reaches Gaoxin (K3 + 827) in the west, with a length of 2,547 meters. The original state of the road is an intercity expressway that has been completed and opened to traffic. The highway grade is grade I, and the width of the road is 24.5 meters. In this project, the original road is widened and transformed into the urban class I main road, mainly implementing the expansion and widening of both sides of the existing road, the original 24.5m is increased to 66m, and the non-separated green belt, non-motor vehicle lane, sidewalk and green belt and buried rain and sewage pipes are added on the left and right sides.