The data collected by the fitness app Strava turns out to be a pretty accurate way to get a handle on how many people commute on foot or by bike, say scientists with the Centers for Disease Control and Prevention. This could help urban planners as they try to make cities safer for walkers and bikers who commute to work. Commuting, however, is really hard to observe Cities trying to become more bike- and pedestrian-friendly need…
Fitness apps could help cities plan better bike lanes
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