Never stop at a red light again

Read the full post at SmartPlanet.

A group of researchers from MIT and Princeton University have developed an app that takes advantage of a growing trend: drivers who install brackets on their dashboards and mount their smartphones as GPS navigators.

The researchers used a network of these GPS-enabled cell phones to collect information about traffic lights. Based on images captured by the phones’ cameras, the app is able to predict exactly how slowly a person needs to drive in order to miss the next red light.

The application, called SignalGuru, was tested on 20 cars in both Cambridge, M.A. and Singapore. The system used in Cambridge, where lights change according to fixed schedules, predicted the change of red lights to within two-thirds of a second. In Singapore, where traffic lights change depending on traffic flow, the system was less precise.

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