Uber in limited autonomous car tests again in San Francisco

Uber’s autonomous vehicles returned to public roads in San Francisco, Pittsburgh and Toronto on Thursday, nine months after one of its self-driving cars killed a pedestrian in Arizona.

In San Francisco and Toronto, Uber said, the cars will operate in manual mode, which means a human driver will be in control at all times. Even in Pittsburgh, it will begin with fewer than five cars on the road, and slowly add to that over time.

The vehicles are operating at drastically reduced speeds and in less challenging environments than before, the company said, as it eases back into testing and tries to ensure people’s safety.