San Francisco Mayor Daniel Lurie had previously advocated for the city to be a testing ground for new technologies, but his stance has shifted following a major traffic disruption caused by Waymo's autonomous taxis. The mayor has now written to state regulators urging them to strengthen the management of self-driving vehicles.
The incident occurred on the July 4th Independence Day holiday. A large number of Waymo vehicles, having depleted their batteries in heavy traffic, blocked key streets, worsening the city's gridlock and impacting thousands of residents. In his letter to the state's transportation department, Mayor Lurie referenced two events—a widespread power outage in December and the July 4th fireworks display near the Golden Gate Bridge—both of which led to dozens of Waymo vehicles stalling and causing significant traffic snarls.
In the letter, Lurie stated these events "demonstrate that California's current regulatory framework is insufficient to address the operation of autonomous vehicles during major incidents." He highlighted the core challenge as whether the vehicles can "reliably operate under unconventional conditions."
Lurie outlined four key operational capabilities that companies must now demonstrate: the ability to immediately remove autonomous taxis from travel lanes to ensure passage; the capacity to adjust routes, service areas, and pickup/drop-off locations in real-time; a requirement to share real-time operational data with local agencies, including service disruptions, vehicle breakdown locations, and recovery measures; and proof through testing that their systems can handle large-scale pedestrian and vehicle traffic.
Any company wishing to operate an autonomous taxi service in California must obtain two permits: one from the state's Department of Motor Vehicles and another from the Public Utilities Commission. The state's current regulatory framework is stricter than those in Texas or Arizona, but this has not deterred companies from entering the market. Currently, six companies, including Nuro, Waymo, and Zoox, hold permits for driverless testing.
Waymo is the largest operator, running approximately 1,000 autonomous taxis in the Bay Area. Amazon-owned Zoox and Uber's premium self-driving taxi service are also in development. While Tesla has launched a robotaxi service brand, it uses a driver-assistance system rather than fully autonomous software, and the driver remains a human.
Waymo's scale has placed it at the center of regulatory attention. The company now operates in 11 cities and completes over 500,000 paid trips weekly. Lurie noted that while Waymo agreed to limit service in waterfront areas on July 4th and stationed staff at an emergency center, it was still unable to prevent the congestion. The mayor concluded that voluntary measures are no longer sufficient, emphasizing that the four new requirements "will not weaken autonomous vehicles but will strengthen them."
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