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Cellphones

SignalGuru Helps Drivers Avoid Red Lights 436

cylonlover writes "Researchers at MIT and Princeton have now devised a system, dubbed SignalGuru (PDF), that gathers visual data from the cameras of a network of dashboard-mounted smartphones and tells drivers the optimal speed to drive at to avoid waiting at the next set of lights." In their testing, the system saved drivers about 20 percent in fuel.

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