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Reachability contours
Generate reachability contours from a starting point. Shows how far you can travel within a given time limit (in minutes) or distance limit (in kilometres). Returns polygon boundaries you can display on a map. Supports multiple contours in one request, so you can show 5, 10, and 15-minute ranges together.

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Example prompts

  • “How far can I walk in 15 minutes from Liverpool Street station?”
  • “Show me the area I can cycle to in 20 minutes from my office”
  • “What’s within a 5km drive of this warehouse?”
  • “Compare 10-minute and 30-minute walking ranges from this location”

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What you get back

One or more contour polygons, each with its metric (time or distance), value, and GeoJSON geometry. The response also includes the origin point and travel type used.