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Waymo's San Francisco outage raises doubts over robotaxi readiness during crises

The widespread power outage that caused Waymo robotaxis to stall and snarl traffic in San Francisco earlier this month has raised concerns over the ability of autonomous vehicle operators (AVOs) to handle major emergencies such as earthquakes and flooding.

Videos posted on social networks showed driverless taxis of Alphabet's?Waymo unit, a common sight on the streets, stuck at intersections, their hazard light on, as?traffic signals?had stopped working after a PG&E fire that had knocked out electricity to about one-third the city in December 20. Waymo suspended operations and resumed them a day after.

The incident has renewed the call for tighter regulation in a nascent, but rapidly growing industry. Other companies such as Amazon's Zoox and Tesla are racing to expand robotaxi service across several cities.

"If you get a response to a blackout wrong, regulators are derelict if they do not respond to that by requiring some sort of proof that the earthquake scenario ?will be handled properly," said Philip Koopman, a Carnegie Mellon University computer-engineering professor and autonomous-technology expert.

Waymo stated in a Tuesday statement that, while its robotaxis were designed to handle nonoperational traffic signals as four-way stop, they sometimes request a verification check. The vehicles were able to successfully navigate more than 7,000 dimmed signals on Saturday. However, the "outage" caused a spike in confirmation requests which "led to response delay contributing to congestion on already overcrowded streets," Waymo stated.

Robotaxi operators use remote control by humans in various degrees around the world to monitor and operate vehicles. This is known as "teleoperation". Waymo has, for instance, a team human "fleet responses" agents that?respond to the questions of the Waymo driver, its robot, when they encounter a specific situation.

Missy Cummings of George Mason University Autonomy and Robotics Center and a former advisor to the U.S. Road Safety regulator said that such remote assistance had its limitations.

She said that the whole purpose of remote operations was to have humans available when the system did not respond as it should. Cummings stated that the federal government should regulate remote operations. Cummings said that the federal government should regulate remote operations.

The California Department of Motor Vehicles (DMV) and the California Public Utilities Commission (CPUC), which regulate and issue licenses for the testing of robotaxis and their commercial deployment, are investigating the incident.

The DMV stated that it was in contact with Waymo, and other automakers about emergency response. The DMV also stated that it was formulating rules to ensure remote driver "meets high standards for safety and accountability, as well as responsiveness."

"A SHOT ACROSS BOW"

The deployment and commercialization of fully autonomous vehicles has been "harder than anticipated" with high investments being made to ensure that the technology is safe, and public outcry following collisions forcing some to close their doors.

After a high-profile incident in 2023, when a robotaxi of?General Motors Cruise dragged a person, regulators revoked the permit. The company eventually ceased operations.

Elon Musk, CEO of Tesla, has promised rapid expansion. Waymo has also expanded rapidly, after a slow and steady growth since it was launched as Google's autonomous driving project in 2009.

Waymo has a fleet that includes more than 2,500 cars. It operates in San Francisco Bay Area and Los Angeles as well as Metro Phoenix, Austin, Atlanta, and Atlanta.

The company stated that the confirmation processes it follows were developed during its early deployment, and they are now fine-tuning them to fit its current scale. Waymo has implemented fleet-wide updates to provide vehicles with a "specific power outage contextual, allowing them to navigate more effectively."

Cummings, as well as Koopman, said that robotaxi operators would need to meet additional requirements when their fleets reach a certain size. This is to ensure they are equipped to handle large-scale problems.

Koopman stated that "if this had been a quake, there would have been problems." This is just a warning shot. Reporting by Abhirup in San Francisco, Editing by Sayantani and Alistair Bell

(source: Reuters)