Research and Exploration on Cross-Border Transportation Support Development in Metropolitan Areas

China's new urbanization has made significant progress, and the level and quality of urbanization have been greatly improved. Urbanization has become a strong support to promote regional coordinated development. The status and role of metropolitan area as an important carrier of space in China have been continuously improved, and it has gradually become the key to implement the new urbanization strategy and promote regional coordinated development. However, in the process of development and evolution of the trans administrative metropolitan area, due to the shortcomings of the cross-border traffic connection, it is urgent to form an effective coordination mechanism, promote the cross-border traffic to take the lead in unblocking, gradually establish the metropolitan area cross-border traffic system, and give full play to the pioneering role of Chinese path to modernization.