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 ...

Aug 06, 2014
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Smart highways to avoid traffic jams

(Phys.org) -- Traffic lights on highway access ramps can help prevent traffic jams. Swiss engineers are testing this approach to increase the capacity of Swiss highways.

May 21, 2012
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US, university test cars that can communicate

In a few weeks, about 2,800 cars, trucks and buses will start talking to each other on the streets of Ann Arbor, Michigan, in a giant experiment that government officials are hoping will lead to safer roads.

Aug 21, 2012
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