1. Modern metropolitan area refers to the spatial form of urbanization within urban agglomerations, with megacities, megacities or megacities with strong radiation-driven functions as the center and 1 hour commuting circle as the basic scope.

2. Build a multi-level rail transit network to realize efficient commuting; Promote the industrial pattern of ladder distribution and chain matching from the center to the periphery, and form a unique industrial circle; Coordinate and optimize the functional layout of public services, leisure and entertainment, and create a high-quality living circle.

3. Smart city construction refers to analyzing and integrating the key information of urban operation core system by improving the layout of urban communication technology. Only in this way can the city meet the needs of people's livelihood, environmental protection, public safety, urban services and industry and commerce? Wisdom? Responsive social engineering.