The Real-Time Logistics Challenge
Modern logistics companies need more than basic shipment tracking. They need real-time visibility into every vehicle, predictive ETAs, automated exception handling, and integration with warehouse management systems.
Core Architecture
Event-Driven Design — Logistics systems are inherently event-driven. A shipment goes through dozens of state transitions: picked, packed, loaded, in-transit, at-hub, out-for-delivery, delivered. Each transition triggers downstream processes.
GPS Telemetry Pipeline — Vehicles report GPS coordinates every 15-30 seconds. This telemetry feeds into a streaming pipeline that powers live maps, geofence alerts, and historical route analysis.
Route Optimization Engine — Dynamic route optimization considers real-time traffic, weather, delivery windows, vehicle capacity, and driver hours-of-service regulations.
Technology Decisions
- Real-time communication: SignalR (for .NET backends) or WebSockets for pushing live updates to dispatch dashboards
- Geospatial queries: PostGIS extension for PostgreSQL handles spatial indexing, distance calculations, and geofence containment queries
- Message queue: Apache Kafka for event streaming between microservices
- Mapping: Mapbox or Google Maps Platform for visualization
Handling Scale
At 10,000+ daily shipments with 30-second GPS updates from 500+ vehicles:
- ~1.4 million GPS points per day
- ~100 state transition events per shipment = 1 million events daily
- Peak throughput during morning dispatch: 500+ events per second
Integration Points
A logistics platform must integrate with:
- Warehouse Management Systems (WMS)
- Transportation Management Systems (TMS)
- Customer notification services (SMS, email, push)
- ERP systems for billing and invoicing
- Customs and compliance systems for international shipments
Conclusion
Real-time logistics platforms require careful architecture to handle the volume, velocity, and variety of data involved. The investment pays off in reduced delivery times, lower fuel costs, and dramatically improved customer satisfaction.
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