Design Problems/Google Maps

Google Maps

Hard
GeospatialGraphRouting

High-Level Architecture

Rendering diagram...

Design a navigation and mapping system like Google Maps that provides map rendering, location search, route planning (driving/walking/transit), real-time traffic updates, and ETA estimation. The system handles billions of map tile requests and millions of routing queries daily.

Clarifying Questions

  • What features? (Map rendering, search, navigation with turn-by-turn, traffic, ETA)
  • Scale? (1B MAU, 50M navigation sessions/day)
  • ETA accuracy requirement? (Within 10% of actual for 90% of trips)
  • Real-time traffic update frequency? (Every 30 seconds for active roads)
  • Support offline maps? (Yes, downloadable regions)