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Lambda Architecture for real-time traffic speed (TomTom) and air quality (OpenAQ) data in Ho Chi Minh City. Streams to Kafka/JSON, processes with PySpark, persists in Lakehouse (MinIO + Delta Lake), and highlights critical periods where PM2.5 spikes align with congestion, supporting smart city traffic and health decisions.

  • Updated Dec 10, 2025
  • Python

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