21社论丨优化区域经济布局，撬动更大内需空间

Group 1 - The article emphasizes the importance of constructing a high-quality regional economic layout and spatial system, highlighting the need for modern governance in mega cities and the integration of urban clusters [1] - It discusses the cultivation of multiple urban clusters and economic cores to create a coordinated development pattern, leveraging innovation, industrial upgrades, and regional collaboration [1][2] - The article outlines the expected addition of 5,500 to 6,000 kilometers of suburban and intercity railways, along with 3,000 kilometers of urban rail transit, to enhance infrastructure connectivity [2] Group 2 - It highlights the systematic promotion of modern governance in mega cities, focusing on urban renewal to optimize living environments and stimulate domestic demand [3] - The article mentions that urban renewal will create new demands for infrastructure upgrades, generating a market space worth trillions of yuan for related industries [3] - It specifies that approximately 600,000 kilometers of various urban pipelines will need to be updated in the next five years, alongside improvements in disaster prevention and new infrastructure investments exceeding one trillion yuan annually [3] Group 3 - The article advocates for a differentiated development approach for small and medium-sized cities, emphasizing unique characteristics and quality improvements [4] - It suggests that small cities near core urban areas can sustain growth by absorbing industrial overflow and achieving commuting integration [5] - The article stresses the need for regional coordinated development as an inherent requirement of Chinese modernization, aiming to optimize productivity layout and enhance domestic market space [5]