OpenTrafficMap

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TLDR

  • Real-time V2X traffic map with 108 active roadside devices streaming 238M+ packets via WebSocket, visualizing cars, trucks, trams, buses, cyclists, and pedestrians.

Key Takeaways

  • Live WebSocket feed processes ~237.5M packets, discarding roughly 823K, with a 5-minute display age window.
  • Tracks 9 vehicle/actor classes including RSUs (Road Side Units) and traffic signal geometry, not just cars.
  • 108 active nodes and 31 active tracks visible at a given moment, suggesting a dense urban deployment.
  • Built on OSM tile data with custom iconography and a modern color palette purpose-built for V2X overlays.

Hacker News Comment Review

  • The headline technical finding from commenters: 802.11p (DSRC/V2X) hardware has historically cost hundreds per unit; this deployment reportedly uses sub-£20 hardware, which is a meaningful cost barrier drop for CAM and SPAT message experimentation.
  • Coverage is Europe-only for now; no data appears in the USA, and the project provides no documentation or links explaining the sensor network or how to contribute nodes.

Notable Comments

  • @mlaretallack: sub-£20 hardware handling V2X CAM/SPAT messages is the key unlock here, previously gated by expensive 802.11p equipment.
  • @xd1936: calls out the OSM theme as unusually fresh: “I haven’t seen a theme on OSM data look this modern.”

Original | Discuss on HN