Southeast Michigan makes headway on ‘connected’ roads

General Motors Co. is testing a safety feature in Macomb County to warn drivers that traffic signals are about to turn red. And in what is believed to be a first “connected” construction zone in the nation, test cars on a section of Interstate 75 in Oakland County can read high-tech roadside bar codes which communicate what lanes are closed up ahead. Even the reflective strips on workers’ safety vests contain information that identifies them as people instead of traffic barrels. Those are just three examples that make southeast Michigan a leader in developing “connected” roads and traffic signals that will “talk” directly to the next generation of cars…