The mayor of San Francisco has called for tighter regulations around self-driving cars after they failed to adapt to traffic and power outages leading to hours of gridlock on the Fourth of July.
The city, which was the first city to legalize self-driving Waymo taxis, experienced traffic chaos over the holiday weekend after traffic caused the driverless vehicles to run out of power and break down in the middle of busy intersections, leading to several more hours of delays for motorists, according to CBS.