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Google·Product Manager·Onsite - Product Sense / Strategy·Senior

SeniorPrefer not to say
Jun 2026

Summary

Google PM interview with a single estimation question about street view data loss in New York. Pretty classic market sizing territory but the geographic constraint made it a bit more interesting than the usual 'how many gas stations' type prompt.

Questions Asked (1)

Q1

Estimate the cost to replace lost street view imagery data for Google Maps in New York.

Product Analytics & MetricsProduct Strategy
Author's notes

My first instinct was to jump straight to car fleet costs and I almost forgot about the data processing side entirely.

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AI HintsAI Generated

Suggested Approach

Break the problem into two main components: the cost to collect new imagery (driving, equipment, processing) and the cost to process and integrate it into Google Maps. Use a bottom-up estimate based on New York's road network and Google's known Street View operations, then sanity-check with a top-down view.

Pro tip: Mention that Google already has much of the infrastructure and data, so the marginal cost is lower than a from-scratch estimate; also note that imagery is refreshed regularly, so 'lost' data might be partially recoverable from backups or other sources.

1. Clarify scope and assumptions

Define what 'lost street view imagery' means: is it all of New York, or just a subset? Assume we need to re-collect and re-process all street-level imagery for New York City's road network.

2. Estimate the size of the road network

Calculate total road miles in New York (e.g., NYC has about 6,000 miles of roads; if including all state, more). Use this to determine the scale of data collection.

3. Estimate data collection costs

Break down into vehicle costs (cars, fuel, maintenance), equipment (cameras, LiDAR), and labor (drivers, operators). Estimate time required based on driving speed and coverage.

4. Estimate data processing and integration costs

Include costs for stitching images, blurring faces/license plates, storing data, and integrating into Google Maps. Consider cloud computing and engineering labor.

5. Sum and sanity-check

Add up all costs and compare with known benchmarks (e.g., Google's overall Street View budget) to ensure the estimate is reasonable.

Key Points to Mention

  • Scale of New York's road network (e.g., ~6,000 miles in NYC, ~100,000+ miles in NY state)
  • Cost components: vehicles, fuel, equipment, labor, data processing, storage
  • Google's existing infrastructure and economies of scale reduce marginal cost
  • Frequency of Street View updates (typically every 1-3 years) and potential for partial data recovery
  • Use of automated processing and machine learning to reduce manual labor
  • Comparison with alternative data sources (e.g., user-contributed photos, third-party providers)

AI-generated suggestions, not part of the candidate's original notes. May be inaccurate — verify before relying on them.