In this Tuesday, Dec. 13, 2016, file photo, an Uber driverless car waits in traffic during a test drive in San Francisco.
In this Tuesday, Dec. 13, 2016, file photo, an Uber driverless car waits in traffic during a test drive in San Francisco. Eric Risberg AP
In this Tuesday, Dec. 13, 2016, file photo, an Uber driverless car waits in traffic during a test drive in San Francisco. Eric Risberg AP