Traffic lights today are controlled by computers and other purpose-built systems, but what did people do before computers ...
Morning Overview on MSN
The clever way traffic lights worked before computers
Before the advent of computers, traffic lights were a marvel of mechanical and electromechanical engineering, utilizing ...
As cars and trucks get smarter and more connected, the humble lights that have controlled the flow of traffic for more than a century could also be on the cusp of a major transformation. Researchers ...
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