# Design Real-Time Vehicle Location Tracking Design a system that ingests robotaxi locations and shows authorized clients a near-real-time map. ### Constraints & Assumptions - Vehicles may disconnect or send out-of-order updates. - Location access is authorization-scoped. ### Clarifying Questions to Ask - What freshness and accuracy are required? - Fleet-wide or trip-specific views? ### What a Strong Answer Covers - Ingestion, ordering, latest-state storage, streaming, privacy, and stale-state handling. ### Follow-up Questions - How would history be retained? - How would regional failure be handled?