{
 "ocl_version": "0.1.0",
 "name": "Sr\u00f2n a' Bhuic to Cnoc na M\u00f2ine",
 "slug": "discovered-lane-57-9096-5-1800",
 "confidence": "U",
 "reported_claims": [],
 "ladder": [
  {
   "window_m": 2.0,
   "max_gradient_pct": 45.5455912085486,
   "diagnostic": true,
   "flags": [
    "structure_excluded"
   ],
   "start_distance_m": 67.0,
   "end_distance_m": 69.0,
   "start_elevation_m": 11.261546061011702,
   "end_elevation_m": 12.172457885182673,
   "min_gradient_pct": -7.30342429967461,
   "suppressed_max_gradient_pct": 62.185835598176986,
   "suppressed_location_m": [
    183.0,
    185.0
   ]
  },
  {
   "window_m": 3.0,
   "max_gradient_pct": 44.665562406477534,
   "diagnostic": true,
   "flags": [
    "structure_excluded"
   ],
   "start_distance_m": 66.0,
   "end_distance_m": 69.0,
   "start_elevation_m": 10.832491012988347,
   "end_elevation_m": 12.172457885182673,
   "min_gradient_pct": -5.419384911534427,
   "suppressed_max_gradient_pct": 55.87218428455856,
   "suppressed_location_m": [
    183.0,
    186.0
   ]
  },
  {
   "window_m": 5.0,
   "max_gradient_pct": 44.692174674850236,
   "diagnostic": false,
   "flags": [
    "structure_excluded"
   ],
   "start_distance_m": 64.0,
   "end_distance_m": 69.0,
   "start_elevation_m": 9.937849151440162,
   "end_elevation_m": 12.172457885182673,
   "min_gradient_pct": -1.861454207032729,
   "suppressed_max_gradient_pct": 47.83112872596213,
   "suppressed_location_m": [
    182.0,
    187.0
   ]
  },
  {
   "window_m": 10.0,
   "max_gradient_pct": 34.67695679762276,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 61.0,
   "end_distance_m": 71.0,
   "start_elevation_m": 9.244656281225431,
   "end_elevation_m": 12.712351960987707,
   "min_gradient_pct": -0.5507665869163247
  },
  {
   "window_m": 20.0,
   "max_gradient_pct": 27.759603893090617,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 57.0,
   "end_distance_m": 77.0,
   "start_elevation_m": 8.512822248842216,
   "end_elevation_m": 14.06474302746034,
   "min_gradient_pct": 0.3190275622831962
  },
  {
   "window_m": 25.0,
   "max_gradient_pct": 24.7335602887078,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 57.0,
   "end_distance_m": 82.0,
   "start_elevation_m": 8.512822248842216,
   "end_elevation_m": 14.696212321019166,
   "min_gradient_pct": 0.7297604259208583
  },
  {
   "window_m": 50.0,
   "max_gradient_pct": 14.753251688747117,
   "diagnostic": false,
   "flags": [
    "structure_excluded"
   ],
   "start_distance_m": 51.0,
   "end_distance_m": 101.0,
   "start_elevation_m": 8.196543601193333,
   "end_elevation_m": 15.573169445566892,
   "min_gradient_pct": 2.3479464413478297,
   "suppressed_max_gradient_pct": 15.120929919580563,
   "suppressed_location_m": [
    171.0,
    221.0
   ]
  },
  {
   "window_m": 100.0,
   "max_gradient_pct": 13.532837521375136,
   "diagnostic": false,
   "flags": [
    "structure_excluded"
   ],
   "start_distance_m": 200.0,
   "end_distance_m": 300.0,
   "start_elevation_m": 25.849663907969912,
   "end_elevation_m": 39.38250142934505,
   "min_gradient_pct": 4.540288843812618,
   "suppressed_max_gradient_pct": 14.48924774304124,
   "suppressed_location_m": [
    181.0,
    281.0
   ]
  }
 ],
 "shape": {
  "ascent_concentration": 0.378,
  "concentration_window_frac": 0.25,
  "longest_pitch_10pct_m": 103.0,
  "shape_class": "sustained"
 },
 "length_m": 1020.722347233686,
 "start_elevation_m": 6.950346611815629,
 "end_elevation_m": 90.94040601098494,
 "endpoint_gain_m": 83.99005939916931,
 "overall_gradient_pct": 8.228492265971765,
 "accumulated_ascent_m": 85.68901435233995,
 "window_maxima": {
  "max_5m": {
   "gradient_pct": 44.692174674850236,
   "start_distance_m": 64.0,
   "end_distance_m": 69.0,
   "midpoint_distance_m": 66.5,
   "start_elevation_m": 9.937849151440162,
   "end_elevation_m": 12.172457885182673,
   "start_xy": [
    211608.63424973964,
    895440.1456915432
   ],
   "end_xy": [
    211609.52917768693,
    895445.0473522013
   ]
  },
  "max_10m": {
   "gradient_pct": 34.67695679762276,
   "start_distance_m": 61.0,
   "end_distance_m": 71.0,
   "midpoint_distance_m": 66.0,
   "start_elevation_m": 9.244656281225431,
   "end_elevation_m": 12.712351960987707,
   "start_xy": [
    211608.885185153,
    895437.2079070074
   ],
   "end_xy": [
    211610.45220711068,
    895446.8216173119
   ]
  },
  "max_20m": {
   "gradient_pct": 27.759603893090617,
   "start_distance_m": 57.0,
   "end_distance_m": 77.0,
   "midpoint_distance_m": 67.0,
   "start_elevation_m": 8.512822248842216,
   "end_elevation_m": 14.06474302746034,
   "start_xy": [
    211610.66584539152,
    895433.8114384526
   ],
   "end_xy": [
    211613.221295382,
    895452.1444126439
   ]
  },
  "max_25m": {
   "gradient_pct": 24.7335602887078,
   "start_distance_m": 57.0,
   "end_distance_m": 82.0,
   "midpoint_distance_m": 69.5,
   "start_elevation_m": 8.512822248842216,
   "end_elevation_m": 14.696212321019166,
   "start_xy": [
    211610.66584539152,
    895433.8114384526
   ],
   "end_xy": [
    211615.52886894142,
    895456.5800754206
   ]
  },
  "max_50m": {
   "gradient_pct": 14.753251688747117,
   "start_distance_m": 51.0,
   "end_distance_m": 101.0,
   "midpoint_distance_m": 76.0,
   "start_elevation_m": 8.196543601193333,
   "end_elevation_m": 15.573169445566892,
   "start_xy": [
    211615.13480846523,
    895429.8297932623
   ],
   "end_xy": [
    211624.29764846724,
    895473.4355939716
   ]
  },
  "max_100m": {
   "gradient_pct": 13.532837521375136,
   "start_distance_m": 200.0,
   "end_distance_m": 300.0,
   "midpoint_distance_m": 250.0,
   "start_elevation_m": 25.849663907969912,
   "end_elevation_m": 39.38250142934505,
   "start_xy": [
    211624.89552983124,
    895555.7418731848
   ],
   "end_xy": [
    211723.85219752634,
    895567.8223772483
   ]
  }
 },
 "window_minima": {
  "min_5m": {
   "gradient_pct": -1.861454207032729,
   "start_distance_m": 43.0,
   "end_distance_m": 48.0,
   "midpoint_distance_m": 45.5,
   "start_elevation_m": 8.176760547821438,
   "end_elevation_m": 8.083687837469801,
   "start_xy": [
    211621.77826449968,
    895425.372833321
   ],
   "end_xy": [
    211617.62610447814,
    895428.1584332843
   ]
  },
  "min_10m": {
   "gradient_pct": -0.5507665869163247,
   "start_distance_m": 1010.0,
   "end_distance_m": 1020.0,
   "midpoint_distance_m": 1015.0,
   "start_elevation_m": 90.94935657274331,
   "end_elevation_m": 90.89427991405168,
   "start_xy": [
    211441.9643981641,
    896054.0099602124
   ],
   "end_xy": [
    211442.57956368852,
    896063.9910208463
   ]
  },
  "min_20m": {
   "gradient_pct": 0.3190275622831962,
   "start_distance_m": 1000.0,
   "end_distance_m": 1020.0,
   "midpoint_distance_m": 1010.0,
   "start_elevation_m": 90.83047440159504,
   "end_elevation_m": 90.89427991405168,
   "start_xy": [
    211442.0095994061,
    896044.0143179994
   ],
   "end_xy": [
    211442.57956368852,
    896063.9910208463
   ]
  },
  "min_25m": {
   "gradient_pct": 0.7297604259208583,
   "start_distance_m": 995.0,
   "end_distance_m": 1020.0,
   "midpoint_distance_m": 1007.5,
   "start_elevation_m": 90.71183980757147,
   "end_elevation_m": 90.89427991405168,
   "start_xy": [
    211442.09659767163,
    896039.0150749264
   ],
   "end_xy": [
    211442.57956368852,
    896063.9910208463
   ]
  },
  "min_50m": {
   "gradient_pct": 2.3479464413478297,
   "start_distance_m": 969.0,
   "end_distance_m": 1019.0,
   "midpoint_distance_m": 994.0,
   "start_elevation_m": 89.68715727620454,
   "end_elevation_m": 90.86113049687846,
   "start_xy": [
    211447.0308908479,
    896013.5584189881
   ],
   "end_xy": [
    211442.51804713608,
    896062.9929147828
   ]
  },
  "min_100m": {
   "gradient_pct": 4.540288843812618,
   "start_distance_m": 920.0,
   "end_distance_m": 1020.0,
   "midpoint_distance_m": 970.0,
   "start_elevation_m": 86.35399107023906,
   "end_elevation_m": 90.89427991405168,
   "start_xy": [
    211469.29420028633,
    895970.2169638828
   ],
   "end_xy": [
    211442.57956368852,
    896063.9910208463
   ]
  }
 },
 "diagnostic_window_maxima": {
  "max_2m": {
   "gradient_pct": 45.5455912085486,
   "start_distance_m": 67.0,
   "end_distance_m": 69.0,
   "midpoint_distance_m": 68.0,
   "start_elevation_m": 11.261546061011702,
   "end_elevation_m": 12.172457885182673,
   "start_xy": [
    211609.10500487805,
    895443.1085262669
   ],
   "end_xy": [
    211609.52917768693,
    895445.0473522013
   ]
  },
  "max_3m": {
   "gradient_pct": 44.665562406477534,
   "start_distance_m": 66.0,
   "end_distance_m": 69.0,
   "midpoint_distance_m": 67.5,
   "start_elevation_m": 10.832491012988347,
   "end_elevation_m": 12.172457885182673,
   "start_xy": [
    211608.94808649857,
    895442.1209146923
   ],
   "end_xy": [
    211609.52917768693,
    895445.0473522013
   ]
  }
 },
 "diagnostic_note": "Windows <=3 m are at raster-noise scale (1-sigma raster noise alone is roughly +/-7 pp at 2 m and +/-5 pp at 3 m on a 1 m DTM). Diagnostic use only: never a headline or ranking value.",
 "quality_summary": {
  "overhead_obstruction": {
   "obstruction_threshold_m": 2.0,
   "obstructed_fraction": 0.006,
   "obstruction_max_height_m": 4.02,
   "flagged_windows_m": []
  },
  "structure_suppression": {
   "masked_fraction": 0.006,
   "windows_resited": [
    2.0,
    3.0,
    5.0,
    50.0,
    100.0
   ],
   "windows_unresolved": []
  },
  "excluded_ranges_m": [
   [
    181.0,
    186.0
   ]
  ],
  "review": [
   "short_window_divergence"
  ],
  "extent": []
 },
 "provenance": {
  "analysis_version": "0.1.0",
  "sample_interval_m": 1.0,
  "interpolation": "bilinear",
  "smoothing": "none",
  "gradient_windows_m": [
   5.0,
   10.0,
   20.0,
   25.0,
   50.0,
   100.0
  ],
  "diagnostic_windows_m": [
   2.0,
   3.0
  ],
  "elevation_crs": "EPSG:27700",
  "elevation_resolution_m": 1.0,
  "elevation_tiles": [
   "data/cache/scotland/phase-2/dtm/NH19.tif"
  ],
  "calculated_at": "2026-08-18T18:40:20+00:00",
  "road_source": "OpenStreetMap (local PBF extract)",
  "road_attribution": "\u00a9 OpenStreetMap contributors, ODbL",
  "osm_pbf_path": "data/cache/pbf/scotland-2026-08-14-roads.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 2 1m",
  "elevation_tile_ids": [
   "NH19"
  ],
  "climb_origin": "discovered",
  "notes": "Coarse pass: max 11.2% over 200 m (Terrain 50), gain 22.5 m over 190 m way. EXTENDED by graph walk: +1 segment(s) at base, +6 at top (stop: base=no_descending_continuation, top=no_ascending_continuation; min_avg=2.0%). Review before adopting. DEDUPE: absorbed 1 overlapping proposal(s): discovered-lane-57-9082-5-1773 ADOPTED (Scotland launch 2026-08-18): clean-steep. AUTO-NAMED from gazetteer (hypothesis, unreviewed): was 'Discovered lane (57.9096, -5.1800)'.",
  "naming_note": "auto-named from gazetteer (hypothesis, unreviewed); discovered as 'Discovered lane (57.9096, -5.1800)'"
 },
 "area": {
  "place": "Sr\u00f2n a' Bhuic",
  "county": "Highland"
 }
}