Finally, it doesn’t make sense to build out huge new systems intended to last for a long time if the technologies, the systems, and communities they are embedded in are all evolving rapidly. New systems should be smaller scale by default, rather than monolithic, providing opportunities to test-drive systems within particular communities and conditi

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For example, a study by H. Wolfson published in 2011 found that when protected bike lanes are installed in New York City, injury crashes for all road users (drivers, pedestrians, and cyclists) typically drop by 40 percent and by more than 50 percent in some locations.