Physical State | The risk-data layer for a robotic world

Incident Abstract & Audit Findings

The May Mobility vehicle (Ego) approaches a turn with a trailing vehicle following closely behind. The May planner initially selects a trajectory it believes will safely complete the turn. However, as the Ego begins the turn, it re-evaluates the situation and detects a significant risk of striking the curb.

System & Fleet Architecture

Operating Manufacturer

May MobilityView Manufacturer

Hardware Platform

May Mobility Autonomous Sienna

Operational Sectors

Physical AI / Robotics

Primary Sources & Evidentiary Filings

https://www.nhtsa.gov/laws-regulations/standing-general-order-crash-reporting#report-30413-13469
https://www.nhtsa.gov/laws-regulations/standing-general-order-crash-reporting#report-30413-13469
Inspect Filing

Related Incidents & Failure Precedents

6 records on file

Incident Context & FAQ

What happened in ADS crash report in Arlington, TX involving a TOYOTA Sienna (NHTSA SGO 30413-13469)?

The May Mobility vehicle (Ego) approaches a turn with a trailing vehicle following closely behind. The May planner initially selects a trajectory it believes will safely complete the turn. However, as the Ego begins the turn, it re-evaluates the situation and detects a significant risk of striking the curb. At that point, the planner shifts focus from avoiding the curb entirely to minimizing the severity of a potential curb strike. To reduce speed before the expected contact, the Ego brakes at 3.5 m/sÂ²). Because the trailing vehicle is following so closely, this deceleration makes a rear-end collision likely. The Ego predicts a potential rear-end collision and elects to reduce brake force to lessen the impact severity. Moments later, the trailing vehicle strikes the rear driver-side bumper of the Ego and then drives away. Future improvements are underway to give the planner a policy option to steer away from curbs. This new capability will help the vehicle avoid situations where braking becomes the only remaining way to manage close curb proximity.

When did this incident occur?

The incident is recorded as occurring on December 1, 2025 on the DEPLOY registry. The date reflects the underlying real-world event, not the registry record's creation date.

What robot was involved in ADS crash report in Arlington, TX involving a TOYOTA Sienna (NHTSA SGO 30413-13469)?

May Mobility Autonomous Sienna by May Mobility is the recorded robot involved in this incident at Toyota City, Japan.

Has anyone responded to ADS crash report in Arlington, TX involving a TOYOTA Sienna (NHTSA SGO 30413-13469)?

No responses to this incident are recorded on the DEPLOY registry. Operators, manufacturers, or affected parties can submit responses to the editorial team; absence is not a guarantee no response was issued.

What is the current status of ADS crash report in Arlington, TX involving a TOYOTA Sienna (NHTSA SGO 30413-13469)?

This incident is an active record on the DEPLOY registry; no retraction or correction has been issued.