A new study from the Booth School at the University of Chicago estimates ride-sharing services like Uber and Lyft, have become significant contributors to   the rise in fatal traffic accidents. They are not only increasing street congestion and hurting transit companies, but are killing people. An article from Streetsblog notes that the increase in congestion is partly because drivers spend 40 to 60 percent of their time circling without passengers, which is known as “deadheading.” Uber and Lyft have increased traffic deaths by 2-3 percent nationally, which is 1,100 additional ...