Big federal dollars for small state projects aim to get more cars off the roads

A 60-mile pedestrian and cycling trail in Arkansas, an electric street sweeper in Oregon and truck parking facilities in Florida don’t appear to have much in common — let alone any similarity with a conversion of California highways to toll roads or a roundabout in Michigan. But all of the projects will be paid for by the Carbon Reduction Program, a five-year, $6.4 billion federal program to reduce the tailpipe emissions that contribute to global warming.