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  "road_source": "OpenStreetMap (local PBF extract)",
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  "osm_snapshot": "2026-08-12T20:21:46Z",
  "elevation_provider": "Environment Agency",
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  "notes": "Coarse pass: max 9.9% over 200 m (Terrain 50), gain 24.5 m over 314 m way. EXTENDED by graph walk: +0 segment(s) at base, +14 at top (stop: base=no_descending_continuation, top=no_ascending_continuation; min_avg=2.0%). Review before adopting. DEDUPE: absorbed 6 overlapping proposal(s): blackwall-lane, greenside-gardens, timmey-lane, water-hill-lane, water-hill-lane-2, winterburn-lane ADOPTED (England launch slice 2026-08-16): endurance,qualified-steep."
 },
 "area": {
  "place": "Sowerby Bridge",
  "county": ""
 }
}