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150 years of seeing red: The traffic light marks a milestone

150 years of seeing red: The traffic light marks a milestone

NBC News - By Rachel Elbaum

With more than 1,000 people dying each year on London's horse-and-buggy-clogged roads, city leaders knew they had to do something to control traffic. LONDON — Traffic lights are such a ubiquitous feature of the modern city that no one thinks much about them until you're stuck in a line of cars, …

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