AUBURNDALE — Florida has one of the world’s most famous asphalt ovals in the Daytona International Speedway. A slightly smaller track recently completed in Auburndale won’t draw massive crowds for races, but it’s part of a project that could hasten the day when self-driving vehicles take over the roads. Crews finished laying asphalt for the 2¼-mile oval — phase one of SunTrax — in early May, and construction will begin in the coming months on infield elements designed for the development and testing of connected and autonomous vehicles. The second phase of SunTrax, a project overseen by Florida’s Turnpike Enterprise...