White Box Autonomy

A Zoox and a Waymo stop face-to-face at a San Francisco intersection and block traffic

Date
31 May 2026
Developer / operator
Zoox and Waymo
Location
San Francisco, California, USA
Event type
Traffic disruption / obstruction
Outcome
Failure / challenging
Automation status
Driving automation engaged — reported, not confirmed
Curator-reviewed

Summary

According to the linked post, a Zoox robotaxi and a Waymo SUV stopped face-to-face at a San Francisco intersection and did not proceed, bringing nearby traffic to a standstill while other drivers manoeuvred around them.

Written by White Box Autonomy from the sources listed below.

What is observable from the evidence

  • A Zoox and a Waymo were stopped facing each other at an intersection.
  • Neither proceeded; traffic came to a standstill.
  • Human drivers manoeuvred around the two vehicles.

Automation status

Driving automation engaged — reported, not confirmed

Whether the driving-automation feature was engaged is a separate question from whether it caused the event.

System / software version

Not identified in the available sources.

Causal attribution

Undetermined

The available evidence does not establish a cause. Involvement of a driving-automation system is not the same as its being a cause.

What remains unknown

  • Which vehicle had right of way.
  • How the deadlock resolved.

Interpretation

No interpretation is offered for this event.

Sources & evidence

The sources below are the evidence. The summary and any interpretation on this page are written by White Box Autonomy and are not themselves evidence.

  1. X post · Olivia Moore

About this record

Review status: Curator-reviewed. What the review statuses mean.

Record last reviewed or updated: 1 September 2026.

To report an error or raise a concern about this record, contact zuduo.zheng@uq.edu.au.