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Handling Traffic Light Malfunctions

HardSystem Design00:00
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Your question is Handling Traffic Light Malfunctions. Take a moment with it on the right.

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Problem

How would you handle an expected traffic light malfunction in Zoox's autonomy stack?

Treat this as an end-to-end ML system design problem for Zoox vehicles operating at intersections. Explain how you would detect abnormal or unreliable traffic-light behavior, combine perception with map and vehicle context, select a safe behavior under uncertainty, and validate the system offline and on-road. Address online inference, fallback behavior, monitoring, retraining, and failure containment without assuming that a malfunction can be directly observed in advance.