FILE - In this July 20, 2015 file photo, a pedestrian crosses in front of a vehicle as part of a demonstration at Mcity on its opening day on the University of Michigan campus in Ann Arbor, Mich. Cars that wirelessly talk to each other are finally ready for the road, creating the potential to dramatically reduce traffic deaths, improve the safety of self-driving cars and someday maybe even help solve traffic jams, automakers and government officials say. FILE - In this July 20, 2015 file photo, a pedestrian crosses in front of a vehicle as part of a demonstration at Mcity on its opening day on the University of Michigan campus in Ann Arbor, Mich. Cars that wirelessly talk to each other are finally ready for the road, creating the potential to dramatically reduce traffic deaths, improve the safety of self-driving cars and someday maybe even help solve traffic jams, automakers and government officials say. WASHINGTON (AP) -- All new cars and light trucks would be able to talk wirelessly with each other, with traffic lights and with other roadway infrastructure under a proposal released Tuesday by the Transportation Department.