Estimation question

What are the estimated number of “incidents” that could be reported by users of Waymo in the SF Bay Area?

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What this question tests

Estimation combined with product judgment, since this question needs a defined scope for 'incidents' before counting.

How to approach it

  1. Define 'incidents' clearly: minor issues like hard braking or unexpected stops reported by riders, not just crashes.
  2. Estimate Waymo's SF Bay Area ride volume, assuming roughly a few thousand rides per day given its current robotaxi scale.
  3. Assume an incident report rate per ride, such as roughly 1 in 500 to 1,000 rides prompting a rider-reported incident.
  4. Multiply daily rides by the assumed report rate to get a daily incident count.
  5. Multiply by 365 for an annual estimate, adjusting slightly for service growth over the year.
  6. State the result as an order of magnitude, likely in the low thousands annually, with assumptions clearly flagged.

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