Waymo is resuming robotaxi operations on freeways in Phoenix, San Francisco, and Los Angeles after a two-month pause triggered by software failures in highway construction zones2. The Alphabet-owned company halted freeway service on May 19 after regulators identified that its autonomous driving system was not reliably recognizing freeway construction zones.
The suspension followed 13 incidents in which Waymo robotaxis entered closed construction zones on freeways. No injuries or collisions were reported during those incidents. Waymo issued a voluntary recall of nearly 4,000 vehicles, affecting its 5th-generation automated driving system (ADS).
Waymo spokesperson Sandy Karp said, "We are welcoming riders on freeways again after implementing software updates to improve our performance around highway construction zones". The software updates target scene recognition and routing around construction zones.
The company plans to gradually reintroduce freeway service, starting with Phoenix and expanding to other cities in the coming days1. Waymo's driverless vehicles are now navigating high-speed interstate routes in Arizona's capital. Freeway driving demands capabilities beyond urban surface-street operations, including merging at highway speeds and processing data from cameras, lidar, and radar systems simultaneously.
Waymo currently operates in San Francisco, Los Angeles, Austin, and Phoenix, and recently announced it is providing over 150,000 paid robotaxi rides per week across its operating cities. The company has operated its fully autonomous ride-hailing service in Phoenix since 2020.
The resumption coincides with legislative efforts by Rep. Kevin Mullin (D-Calif.) to establish national safety standards for autonomous vehicles.
ANALYSIS The freeway resumption marks a concrete recovery from what was Waymo's most operationally significant software failure to date — a recall affecting its entire 5th-generation fleet. The fact that the 13 construction-zone incursions produced no injuries or collisions likely helped Waymo avoid more severe regulatory consequences, but the episode exposed a gap in the ADS's environmental recognition capabilities that the company needed two months to address. Restoring freeway access across three major metro areas simultaneously, rather than a single-city pilot, suggests Waymo views the software fix as systemic rather than market-specific.