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Insight for: Show HN: Follow London Trains in 3D

A 3D train tracking visualiser for London and surrounding airports, leveraging TFL API, National Rails, deck.gl, and Cloudflare Workers for real-time, low-drift journey visualization and sharing.
Analyzed: Jul 9, 2026
This submission highlights the increasing demand for real-time, high-fidelity data visualization in public services and logistics. The architecture, combining deck.gl and Cloudflare Workers, exemplifies a trend towards serverless, specialized rendering libraries for complex geospatial data. Developer pain points addressed include managing real-time API integrations, ensuring data accuracy, and achieving performant client-side rendering for interactive 3D experiences. While offering a B2C sharing feature, the underlying technology's robustness is significant for B2B applications in urban planning, logistics, or public transport management. SaaS providers in mapping, IoT, or real-time analytics can leverage similar scalable, interactive data delivery architectures, reducing operational overhead and improving user experience. The focus on performance and infrastructure testing indicates a mature approach to system design.
deck.gl TFL Api National Rails Cloudflare workers infra performance minimal drift 3D visualiser
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