https://archive.is/5LKQb
"Behind the scenes, the company's vehicles in San Francisco sent a "concentrated spike" of requests for help to remote human workers, the company said in a Tuesday blog post. A Waymo robotaxi can navigate defunct traffic signals but sometimes needs to check in with fleet response agents to "ensure it makes the safest choice," the blog post said. The power outage triggered a "backlog" in those requests, causing the vehicles to block traffic..."