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Plantain vendors in the Bazurto market, which spills onto the streets of Cartagena, Colombia.

Market research

A major South American city needs to rebuild its public food market. MIT researchers went on the ground to figure out how urban food systems work.

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Google Maps currently provides data about traffic conditions, labeling congested routes in red and open ones in green. But those data would be much more accurate and timely if cars themselves acted as sensors.

Cars as traffic sensors

A new algorithm optimizes the dissemination of information about traffic and road conditions through networks of wirelessly connected cars.

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