The Shanghai Megaregion Blueprint: How China's Economic Powerhouse is Creating a 21st Century City Cluster [Dateline: SHANGHAI, June 21, 2025]1. The 100km Economic Circle (Key Statistics)- High-speed rail coverage: 92% of towns within 100km radius- Cross-border commuters: 1.8 million daily (projected to reach 2.5m by 2027)- Average commute time: 48 minu