Thinking on Optimization of “Airport+City” Comprehensive Transportation Junction under the Background of Urban Construction of Portal Hub

Under the background of constructing Chengdu into a portal junction city, this paper analyzes the current situation and challenges of the comprehensive transportation in the airport area and specifies the significance and goal of optimizing the " airport+city” comprehensive transportation junction. Comprehensively using the theories of space development and economic and linkage development of comprehensive transportation junction, this paper puts forward the strategies of optimizing countermeasures and suggestions by strengthening the portal junction functions of Chengdu Shuangliu International Airport, improving the multimodal combined external transportation system, optimizing the layout of junction nodes, promoting the integration of port and city, and constructing the combined transportation of port and city in the airport area, and then provides some reference for related departments to study the optimization of " airport+city” transportation junction and the construction of portal junction city.