In downtown Buenos Aires, buses have been diverted to exclusive lanes on the main boulevard 9 de Julio. About 100 blocks of once noisy and polluted roads are now fully pedestrianized streets or pedestrian-priority zones.
Does your neighborhood park also treat polluted water? US Cities need to get on board with the "New Nature" approach of integrating necessary urban infrastructure into a public park environments. Toronto's Sherbourne Common is a must see!