AI in Transportation: Autonomous Vehicle Progress After the Regulatory Pause

Waymo began scaling paid robotaxi rides in more U.S. cities this spring. Zoox followed with similar moves in Phoenix and Las Vegas. Chinese operators did the same in several domestic markets. The NHTSA released a revised framework on May 12, 2026 that sets clearer safety tests.

These steps ended a two-year pause in new commercial permits. The pause came after a series of incidents in late 2024.

The regulatory pause slowed new city launches. It forced every operator to share detailed safety logs. Data released this year shows Waymo vehicles now travel 1.2 million miles between reported collisions (NHTSA AV Test Initiative). Zoox reports 900,000 miles (Zoox Safety Report). Two Chinese firms lag at roughly 400,000 miles.

Current commercial footprint

Waymo runs in five metro areas with over 1,500 vehicles. Zoox operates 800 vehicles across three cities. Chinese operators focus on domestic routes and have not yet secured U.S. permits.

The NHTSA update requires each operator to publish quarterly disengagement numbers. It also demands a public plan for handling edge cases such as construction zones.

• Waymo vehicles log 85 percent of miles without human takeover.

• Zoox reports 78 percent.

• Leading Chinese fleets average 62 percent.

What safety data shows

Recent logs cover 45 million autonomous miles. Waymo recorded 37 at-fault incidents. Zoox recorded 29. No fatalities occurred in either fleet. Chinese operators report higher takeover rates in mixed traffic.

NHTSA analysts note that most events still occur during right turns and unprotected lefts. These remain the hardest maneuvers for current sensor suites.

Where liability law stands

California updated its insurance rules in April (DMV Permitting Update). Operators must now carry $5 million per vehicle in coverage. This cost favors larger players with deep pockets. Cruise paused plans, citing insurance costs as a barrier. Waymo and Zoox both accept primary liability in their operating areas. This removes uncertainty for riders. Chinese operators have not made similar public commitments outside their home market.

Who leads the AV race

Waymo holds the clearest data advantage and the widest U.S. footprint. Zoox matches its pace in hardware reliability but trails in city count. Chinese firms move faster on cost but still need to prove U.S. regulatory compliance.

The next clear signal will arrive in September when NHTSA publishes its second-quarter safety report. That release will show whether any operator has closed the gap on disengagements.

Next signals to watch

Operators will file new city permits in three U.S. markets before year end. Insurance rates for autonomous fleets will be published in August. Chinese companies will attempt their first joint U.S. test corridor in Texas. Any of these events will shift the current ranking within six months.

Sources

NHTSA quarterly AV reports (2026), company safety self-reports (Waymo, Zoox), California DMV autonomous vehicle permits, public NHTSA docket for May 12, 2026 framework.