Safety failure
Realized harm
A Waymo robotaxi collided with a Serve Robotics sidewalk delivery robot in West Hollywood — two autonomous agents failing to negotiate each other
AIR-2024-0050 AIR record · 2024-12-waymo-serve-robot-collision
A real party was affected. This incident caused actual consequences, not a demonstrated capability.
From the supporting source
A Waymo robotaxi reportedly collided with a Serve Robotics delivery robot at a West Hollywood intersection on December 27th, 2024.techcrunch.com
The record
Disclosed
2024-12-31
Occurred
2024-12-27
Vendor
Waymo (Alphabet) / Serve Robotics
Product
Waymo Driver and Serve Robotics delivery robot
Risk domain
Agent behaviour › Unsafe actuation
System type
Classical autonomy (no generative model)
Who acted
Agent acted — two autonomous vehicles drove into each other
Attack surface
Autonomous operations
Autonomy level
Fully autonomous
Initial vector
None autonomous action
Impact type
Property damage
Confidence
High
Submitted by
EAI Internal
Crosswalk
- OWASP Agentic Top 10 (2026)
- ASI01 – Agent Goal Hijack
- MITRE ATLAS
- AML.T0048 – External Harms
- NIST AI RMF
- MEASURE 2.6; MANAGE 1.3
- EU AI Act
- Annex III §1(c)
- ISO/IEC
- TR 24028; 24029-1; 23894
- AIUC-1
- C. Safety
- Scope
- agent misuse
- Mitigation
- Require confirmation for destructive actions; Implement dry-run modes; Use layered safety controls.
- Taxonomy
- Enkrypt AI agent risk taxonomy · Black-Box Red Teaming of Agentic AI: A Taxonomy-Driven Framework for Automated Risk Discovery
Blast radius
one delivery robot; no humans involved on either side
Capability abused
Defense & remediation
Recorded defense
each vendor's own obstacle detection
Guardrail kinds
Physical safety system
Guardrail outcome
Silent
Fix shipped
none disclosed
Taxonomy & references
Curator notes
Kept for a reason unrelated to severity: it is the corpus's clearest instance of two autonomous agents from different operators colliding with no human party. Neither vendor's model of the road includes the other's agent as a first-class actor, and there is no shared protocol between them. That gap scales as more independently-trained agents share an environment. Verified quote is the AI Incident Database's own summary. AI Incident Database incident 881.
Supporting sources
Cite as
Enkrypt AI. "A Waymo robotaxi collided with a Serve Robotics sidewalk delivery robot in West Hollywood — two autonomous agents failing to negotiate each other". AIR, AIR-2024-0050. https://agentincident.vercel.app/i/AIR-2024-0050/ (accessed 2026-10-19).