The Connected Dragon: How Shanghai and Neighboring Cities Built the World's Most Efficient Megaregion

The Yangtze Delta Megaregion by Numbers (2025)• Population: 88 million across 27 cities• Economic Output: ¥50 trillion (37% of China's GDP)• Daily Cross-City Commuters: 2.1 million• High-Speed Rail Network: 3,800 km of trackInfrastructure