BOSTON (AP) — A new study inspired by Boston's early experiments with self-driving cars finds that the technology could ease congestion, but might also lead to more cars on the road and further encourage urban sprawl. The report, released Tuesday by the Boston Consulting Group and the World Economic Forum, is a mostly optimistic take on how autonomous vehicles could change cities. Three companies are now testing self-driving cars in Boston's Seaport District.Read more on NewsOK.com