The project starts from Luoshan Road Interchange in the west and goes to G1503 in the east, with a total length of 13.85 kilometers. The width of the road red line is 60m, and 15m planning isolation zone on both sides. The main line elevated expressway (two-way 6 lanes) + ground city trunk road (two-way 6 fast 2 slow) cross-section form, the whole line set up a total of 8 pairs of entrances and exits, 9 ground bridge

An avenue that connects the inner ring, the middle ring, the outer ring and the suburban ring, and also connects the planned airport expressway. After the completion and opening of the Longdong Avenue Expressway reconstruction, it will be beneficial to improve the layout of the expressway in Shanghai, and at the same time, it can strengthen the rapid connection between the main city and the Pudong Airport, and enhance the expressway's service function to the areas along the route, such as Zhangjiang, Tangzhen, and Heqing.

XinXinJie testing bear the project steel structure testing part, testing project including welding process evaluation, welding material testing, raw material testing (tensile, bending, impact, chemical analysis), factory and on-site weld flaw detection