Abstract:Through the interpretation of the expressway background and functional positioning of Lianggang Avenue (S2—Dazhi River) in Shanghai, based on the analysis of construction conditions and combined with the traffic flow prediction analysis, the overall scheme, section layout and major node schemes of the expressway for Lianggang Avenue (S2—Dazhi River) are studied and designed, which provides some engineering experience and design references for the upgrading and reconstruction of expressways.