Abstract:As to study the co-construction scheme of urban underground road and rail transit in depth, the form, functional positioning and technical standards of the road network (line network) are compared and analyzed. Combined with the multiple co-construction project cases in Shanghai, Jinan, Wuhan and Qingdao, the demand and the trend of the co-channel layout of urban underground road and rail transit are studied and concluded. The feasibility and applicability of various co-construction forms are proposed according to the technical standards. The advantages and the main problems of co-construction engineering are summarized.