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  "calculated_at": "2026-08-19T17:29:01+00:00",
  "road_source": "OpenStreetMap (local PBF extract)",
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  "osm_pbf_path": "data/cache/pbf/scotland-2026-08-14.osm.pbf",
  "osm_snapshot": "2026-08-13T20:21:01Z",
  "elevation_provider": "Scottish Remote Sensing Portal (AWS Open Data, srsp-open-data)",
  "elevation_licence": "Open Government Licence v3 \u2014 \u00a9 Scottish Government, SEPA and partners; Crown copyright",
  "elevation_dataset": "Scottish Public Sector LiDAR Phase 5 50cm",
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  "notes": "Coarse pass: max 13.0% over 200 m (Terrain 50), gain 45.2 m over 1555 m way. EXTENDED by graph walk: +2 segment(s) at base, +0 at top (stop: base=no_descending_continuation, top=no_ascending_continuation; min_avg=2.0%). Review before adopting. DEDUPE: absorbed 1 overlapping proposal(s): station-road-4 ADOPTED (Scotland launch 2026-08-18): clean-steep. AUTO-NAMED from gazetteer (hypothesis, unreviewed): was 'Discovered lane (56.0003, -3.9319)'. ENDPOINT-EXTENDED 2026-08-19 (audit_endpoints flag; re-walk under private-way-safe rules; confirmed via comparison batch).",
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  "license": "ODbL-1.0",
  "license_url": "https://howsteep.org/licensing.html"
 },
 "area": {
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  "county": "Falkirk"
 }
}