Zoox has shown its safety workings, three weeks after recalling every robotaxi it owns
Zoox has published the reasoning behind its claim to be safer than human drivers. Everything reduces to one number, the predicted rate of collision, injury and fatality events, expressed as miles per event. Risk from driving software, from the vehicle itself and from fleet operations is added together into that single estimate.
It functions as a gate. Before any safety-relevant software release, hardware change or revision to operating procedure, Zoox updates the case and checks the combined figure still clears its target.
The target is anchored in human data. Zoox builds its benchmark from NHTSA’s crash sampling and fatality reporting systems and two Federal Highway Administration datasets, then parses them by road speed and weights them to match the mix of roads its robotaxis actually use.
What it does not publish is the answer. Zoox sets its target by comparison to that benchmark and says it aims to be significantly...
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