Lessons from the Cruise Robotaxi Pedestrian Dragging Mishap
Philip Koopman

TL;DR
A robotaxi incident in San Francisco involved complex failures in detection and decision-making, leading to a pedestrian being dragged, highlighting safety and regulatory challenges in autonomous vehicle deployment.
Contribution
This paper analyzes a specific autonomous vehicle mishap, identifying technical and operational failures that contributed to the incident and discussing implications for safety improvements.
Findings
Multiple avoidance options were available but not utilized.
Programming limitations prevented pedestrian recognition in certain scenarios.
Operational strategies could have prevented the mishap altogether.
Abstract
A robotaxi dragged a pedestrian 20 feet down a San Francisco street on the evening of October 2, 2023, coming to rest with its rear wheel on that woman's legs. The mishap was complex, involving a first impact by a different, human-driven vehicle. The following weeks saw Cruise stand down its road operations amid allegations of withholding crucial mishap information from regulators. The pedestrian has survived her severe injuries, but the robotaxi industry is still wrestling with the aftermath. Key observations include that the robotaxi had multiple possible ways available to avoid initial impact with the pedestrian. Limitations to the computer driver's programming prevented it from recognizing a pedestrian was about to be hit in an adjacent lane, caused the robotaxi to lose tracking of and then in essence forget a pedestrian who was hit by an adjacent vehicle, and forget that the…
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Taxonomy
TopicsAutomotive and Human Injury Biomechanics · Transportation Safety and Impact Analysis · Engineering Applied Research
