News tagged with traffic light

The traffic light turns 100

100 years ago, on August 5, 1914, the first electric traffic light was installed on a city street in Cleveland, Ohio. Siemens entered the business ten years later, when the first traffic light tower from Siemens was installed ...

dateAug 06, 2014 in Engineering
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What causes traffic gridlock?

Everyday life enters a different phase on the Tuesday after Labor Day, the unofficial start of autumn in the United States. As students and employees return from vacation, and vehicles fully flood roadways once again, drivers ...

dateSep 07, 2011 in General Physics
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A new methodology developed to monitor traffic flow

The most recent edition of the scientific journal Transportation Research Part B, one of the most recognised in its category, has published the research conducted by Iván Guardiola of the University of Science and Technology ...

dateJun 09, 2014 in Engineering
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Power grid change may disrupt clocks

A yearlong experiment with the nation's electric grid could mess up traffic lights, security systems and some computers - and make plug-in clocks and appliances like programmable coffeemakers run up to 20 minutes fast.

dateJun 24, 2011 in Other
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