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Under the Trump administration, criteria for an upcoming round of road safety grants say projects aimed at “reducing lane capacity” should be considered “less favorably.” 

President Donald Trump’s administration is backing off its demand for an extra layer of federal scrutiny whenever states seek even minor changes to their transportation plans.

Cars can transmit information in real time to other cars and the various sensors posted along a road. The overarching objective is to dramatically curb roadway deaths and serious injuries.

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.