Gongchang Road Underpass Reconstruction Project (located in Sun Yat-Sen University Shenzhen Campus) is located in Guangming district, starting from the west side of Guangqiao Road, passing through Sun Yat-Sen University Shenzhen Campus, Qiangxia Second Road and Qiangxia First Road and connecting to the junction with Dongguan. The whole line is 3.56 km long and the underground part is about 2.645km long and is designed as a double-deck road. Both the surface and the underground roads are two-way road with six lanes. The total investment of this project is 2.124 billion CNY.