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http://www.physorg.com/news117283969.html

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• Traffic jam mystery solved by mathematicians
  rivers and policy-makers have not previously known why jams like this occur, though many have put it down to the sheer volume of traffic. While this clearly plays a part in this new theory, the main issue is around the smoothness of traffic flow. According to the model, heavy traffic will not automatically lead to congestion but can be smooth-flowing. This model takes into account the time-delay in drivers’ reactions, which lead to drivers braking more heavily than would have been necessary
  By ovalverde in To Read with system:unfiled
• Traffic jam mystery solved by mathematicians
  By cozma15 in Public bookmarks with math news traffic

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