PITTSBURGH (AP) — Ride-sharing service Uber is partnering with Carnegie Mellon University on a Pittsburgh research lab they say could lead to the development of driverless cars. The partnership announced Monday includes Uber funding for faculty chairs and graduate fellowships at the private research university. San Francisco-based Uber says the Uber Advanced Technologies Center will also focus on mapping and safety technologies in support of its ride-sharing mission. Uber operates in 200 cities in 54 countries, including Pittsburgh, Philadelphia and Harrisburg.