What works in Hangzhou

Hangzhou ET City Brain shows that AI-driven traffic management significantly improved urban mobility: average vehicle speeds on the pilot corridor increased by 15%, and the city's congestion ranking among Chinese cities fell from 5th to 57th place by 2020, while ambulance response times in covered districts dropped approximately 50%. Longwu Water Fund demonstrates that watershed conservation partnerships can raise drinking-water quality: Longwu Reservoir's water classification rose to China's Class I standard by 2018 through reduced fertiliser and pesticide management, with the model later informing the larger Qiandao Lake Water Fund that trained over 3,000 officials, farmers and students. The evidence for both initiatives comes from observational pre–post studies of single sites or corridors; broader city-wide or long-term impacts beyond these specific deployments are not quantified in the available evidence.