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traffic signal

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    Report: China starts ticketing motorists running yellow lights
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    First installed in London by a railway engineer in 1868, traffic lights are used in just about every city on the planet today. In the most basic sense, drivers have learned that red means stop, green light means go and that yellow indicates that caution is due as the signal is in the process of ...

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    Unintended Consequence of Technology: New LED traffic lights can't melt snow
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    Traffic lights using state-of-the-art LED illumination use 90 percent less electricity, offer a much longer service life and are more durable than their incandescent counterparts. Taking advantage of the countless benefits, cities around the country have been replacing traditional filament-based ...

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    Two L.A. traffic engineers charged with sabotage, hacking traffic lights
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    One way to get what you want when it comes to contentious negotiations with your employer is to throw them into disarray and then go on strike. Or, it could net you a trial, and if you're lucky, a stay in the clink. Gabriel Murillo and Kartik Patel are going to trial on felony charges after they ...

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    Nissan continues to build a better traffic light
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    Nissan is about to begin a new phase in its ongoing intelligent transportation system (ITS) project. The idea is that traffic signals can incorporate new technology to help reduce traffic congestion and pedestrian accidents. Using a section of roadway at the company's Kanagawa campus show above, ...

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