A mass power failure in San Francisco turned into an unplanned stress test for driverless cars, snarling one fleet of robotaxis while a rival claimed to cruise through the chaos. Yet even as images of ...

A massive power outage in San Francisco turned into an unplanned stress test for driverless cars, freezing Waymo’s robotaxis in intersections while human-driven Teslas kept threading through the dark.

Alphabet-owned Waymo resumed its robotaxi service in the San Francisco Bay Area Sunday evening after pausing it amid widespread blackouts that had affected their vehicles' behavior. San Francisco ...