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What do we mean when we say that a city is "healthy"? Do we mean that it's cleaner, safer and less polluted than others? That its economy is booming? That it spends its taxpayers' money wisely, on projects that benefit the many over the few? That it prioritizes the building of community—not just in the social but in the physical sense?
By Anne Lusk
City streets and sidewalks in the U.S. have been engineered for decades to keep vehicle occupants and pedestrians safe. If streets include trees at all, they might be planted in small sidewalk pits, where, if constrained and with little water, they live only three to 10 years on average. Until recently, U.S. streets have also lacked cycle tracks—paths exclusively for bicycles between the road and the sidewalk, protected from cars by some type of barrier.