Abstract:Under the background of tight constraints on resources and environment, in order to adapt to the requirements of the new urban spatial development characteristics of Shanghai, the research on the compound channel of arterial roads is carried out, and the traffic development countermeasures and compound function improvement requirements of arterial roads in the different regions are analyzed. According to the functions given to the arterial highways, four types of compound channels of arterial highways with urban roads, rail transit, municipal facilities and ecological corridors are proposed. The main construction modes and applicable conditions of various compound channels are analyzed, which can adapt to the needs of compound channel construction under various situations, which provides a reference for the application of compound channel in planning, design and management. Taking the reconstruction project of Jiajin Section in G15 Highway as a typical case, its compound function enhancement strategy is analyzed, and the corresponding suggestions for the construction of compound channel are put forward.