Using GPS to Help Ease Congestion in Beijing

GPS data from over 30,000 Beijing cabs have provided researchers at Microsoft Research Asia glimpses into underlying causes of congestion in the city. Typically, the culprit is missing or flawed connections.
September 28, 2011, 5am PDT | Judy Chang
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Erica Naone reports that, for example, "even if a taxi never encounters a slowdown, clues from the trip can indicate an underlying problem with urban planning. For example, the taxi driver might take a circuitous route from point A to point B, instead of a direct one. The added distance could indicate that the driver knows about a problem with what appears to be the fastest route."

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Published on Tuesday, September 27, 2011 in Technology Review
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