Uber's self-driving big rig trucks start moving freight in Arizona

Uber's autonomous trucks are finally hitting the road. The ride-hailing startup said on Tuesday that its self-driving big rigs have been ferrying cargo on highways in Arizona over the past few months. For each trip, human drivers work in tandem with the autonomous trucks. Humans pick up cargo from Uber Freight customers and drive it in trailers to transfer hubs. For each trip, human drivers work in tandem with the autonomous trucks.