UK Quarterly Project/2024/2024 Q4 Project: Crossings

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Welcome

The fourth UK Quarterly Project of 2024 (October, November, December) is on crossings and traffic lights.

While adding more crossings and traffic lights will help car routers better estimate times, this data is truly helpful for pedestrians.

Suggested Tasks

Possible Overpass Turbo filters for candidates to check

  • node[highway=crossing][!crossing] - crossing=* missing and should probably be added
  • way[footway=crossing][tactile_paving] - tactile_paving=yes on a way means tactile paving along the full length, which is unlikely to be true for a crossing in the UK (but may apply to a connecting way between a footway=sidewalk way and the crossing if the tactile paving is across the full width of the pavement). Probably present as a result of blindly copying tags from the crossing node
  • nw["crossing:markings"=yes] - if the crossing markings can be seen in the available imagery, then crossing:markings=* can usually be assigned a meaningful value. If they're not described on the wiki, maybe add a note describing them?

Useful wiki pages

Data Sources & Useful Tools

  • Mapillary has done object detection to try and identify crossings.
  • StreetComplete can help add detail to crossings, but can't add new crossings to OSM.
  • Scheme Browser visualizes and categorizes crossings in OSM (last updated from 5 January 2025 extract)