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Taking A City’s Pulse With Moveable Sensors

Taking a city’s pulse with moveable sensors

Suppose you have 10 taxis in Manhattan. What portion of the borough’s streets do they cover in a typical day?
Before we answer that, let’s examine why it would be useful to know this fact. Cities have a lot of things that need measuring: air pollution, weather, traffic patterns, road quality, and more. Some of these can be measured by instruments attached to buildings. But researchers can also affix inexpensive sensors to taxis and capture measurements across a larger portion of a city.

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