TIER IV autonomous bus rear-ended by public bus during Kumamoto test run
[COLLISION]Jan 30, 2025 · Tier IV · Autoware · Shin-Tomei Expressway, Japan
Failure Mode
COLLISION
Event Date
Jan 30, 2025
Primary Entity
Tier IV
Robotic Platform
Autoware
Jurisdiction / Location
Shin-Tomei Expressway, Japan
Audit Standard
Physical State Verified
Incident Abstract & Audit Findings
On January 30, 2025, a TIER IV Minibus 2.0 autonomous bus operating under a trial in Kumamoto City was rear-ended by a following public bus at the Umayabashi intersection near Kumamoto City Hall. The autonomous bus was operating normally at the time. No injuries were reported among the 4 passengers on the autonomous bus or 15 on the following vehicle.
System & Fleet Architecture
Operating Manufacturer
Hardware Platform
Operational Sectors
Primary Sources & Evidentiary Filings
- Inspect Filing
https://www.sumitomocorp.com/en/easia/news/important/group/20250317
https://www.sumitomocorp.com/en/easia/news/important/group/20250317
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Details
Incident Context & FAQ
What happened in TIER IV autonomous bus rear-ended by public bus during Kumamoto test run?
On January 30, 2025, a TIER IV Minibus 2.0 autonomous bus operating under a trial in Kumamoto City was rear-ended by a following public bus at the Umayabashi intersection near Kumamoto City Hall. The autonomous bus was operating normally at the time. No injuries were reported among the 4 passengers on the autonomous bus or 15 on the following vehicle. The incident caused damage requiring repairs and delayed the public trial launch from February 10 to March 21, 2025. Sensors and autonomous driving system were confirmed unaffected.
When did this incident occur?
The incident is recorded as occurring on January 30, 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 TIER IV autonomous bus rear-ended by public bus during Kumamoto test run?
Autoware by Tier IV is the recorded robot involved in this incident at Shin-Tomei Expressway, Japan.
Has anyone responded to TIER IV autonomous bus rear-ended by public bus during Kumamoto test run?
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 TIER IV autonomous bus rear-ended by public bus during Kumamoto test run?
This incident is an active record on the DEPLOY registry; no retraction or correction has been issued.