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California investigates incidents of Waymo robotaxis stalling after San Francisco power failure

Top California regulators are investigating incidents where 'robotaxis' from Alphabet Unit Waymo stopped in certain parts of San Francisco on Saturday due to a power outage which caused gridlock and snarled the traffic.

Waymo paused its service on Saturday night following a fire that broke out at a PG&E power substation, knocking out electricity to about one-third the city. This affected approximately 130,000 people and forced some businesses to temporarily close.

Social media posts showed multiple videos of a?Waymo roboticaxis at intersections, with the hazard light on because traffic lights had stopped working.

The?incident raised concerns about the unforeseen situations which can arise as autonomous vehicle operators race to deploy driverless?taxis throughout the U.S. Waymo has a fleet that includes more than 2,500 cars in the Bay Area and Los Angeles. It also operates in Metro Phoenix in Arizona, Austin in Texas, and Atlanta in Georgia. On Sunday,?a week after temporarily suspending its operations, it said that the ride-hailing services in the San?Francisco Bay Area had resumed. California Public Utilities Commission spokesperson said, "We are aware and looking into the specifics" in an email. The message was referring to Waymo cars stalling. The regulator didn't provide any details about what they were examining.

Waymo has not responded to our requests for comment on the CPUC statement.

Due to high costs of investment, strict regulations and the investigations that followed collisions which forced many companies shut down, commercializing robotaxis proved to be more difficult than expected. Self-driving taxis are back in the spotlight after Tesla introduced a service earlier this year in Austin, Texas and Waymo accelerated its expansion.

The CPUC and California's Department of Motor Vehicles regulate and issue permits for the testing and commercial deployment of roboticaxis.

Waymo stated in a Monday statement that while the Waymo Driver, the company's fully automated driving system, is designed to "treat non-functional traffic signals as four way stops", the scale of the outage caused vehicles to remain stationary for longer than normal. A spokesperson for the company said that the company is incorporating lessons learned from this event, and committed to improving its technology to adapt to traffic conditions when there are similar disruptions.

(source: Reuters)