{
 "ocl_version": "0.1.0",
 "name": "Lane near Carnach",
 "slug": "discovered-lane-57-8821-6-6870",
 "confidence": "U",
 "reported_claims": [],
 "ladder": [
  {
   "window_m": 2.0,
   "max_gradient_pct": 58.39378090911094,
   "diagnostic": true,
   "flags": [
    "structure_excluded"
   ],
   "start_distance_m": 526.0,
   "end_distance_m": 528.0,
   "start_elevation_m": 24.635623217677306,
   "end_elevation_m": 25.803498835859525,
   "min_gradient_pct": -61.13542506224468,
   "suppressed_max_gradient_pct": 75.35746138107298,
   "suppressed_location_m": [
    54.0,
    56.0
   ]
  },
  {
   "window_m": 3.0,
   "max_gradient_pct": 56.591293147853605,
   "diagnostic": true,
   "flags": [
    "structure_excluded"
   ],
   "start_distance_m": 525.0,
   "end_distance_m": 528.0,
   "start_elevation_m": 24.105760041423917,
   "end_elevation_m": 25.803498835859525,
   "min_gradient_pct": -44.58846723690624,
   "suppressed_max_gradient_pct": 67.27562734770957,
   "suppressed_location_m": [
    53.0,
    56.0
   ]
  },
  {
   "window_m": 5.0,
   "max_gradient_pct": 50.88572905611912,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 526.0,
   "end_distance_m": 531.0,
   "start_elevation_m": 24.635623217677306,
   "end_elevation_m": 27.179909670483262,
   "min_gradient_pct": -37.302501107272725
  },
  {
   "window_m": 10.0,
   "max_gradient_pct": 42.941507054634265,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 522.0,
   "end_distance_m": 532.0,
   "start_elevation_m": 23.347439689688844,
   "end_elevation_m": 27.64159039515227,
   "min_gradient_pct": -28.51177545063866
  },
  {
   "window_m": 20.0,
   "max_gradient_pct": 28.929671099153023,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 519.0,
   "end_distance_m": 539.0,
   "start_elevation_m": 22.674076445198462,
   "end_elevation_m": 28.460010665029067,
   "min_gradient_pct": -17.820870780461895
  },
  {
   "window_m": 25.0,
   "max_gradient_pct": 27.00061991060464,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 523.0,
   "end_distance_m": 548.0,
   "start_elevation_m": 23.452189564136628,
   "end_elevation_m": 30.202344541787788,
   "min_gradient_pct": -16.206533678922987
  },
  {
   "window_m": 50.0,
   "max_gradient_pct": 21.338191507830253,
   "diagnostic": false,
   "flags": [
    "structure_excluded"
   ],
   "start_distance_m": 487.0,
   "end_distance_m": 537.0,
   "start_elevation_m": 17.666871943352664,
   "end_elevation_m": 28.33596769726779,
   "min_gradient_pct": -9.12741343822508,
   "suppressed_max_gradient_pct": 23.950963068581835,
   "suppressed_location_m": [
    519.0,
    569.0
   ]
  },
  {
   "window_m": 100.0,
   "max_gradient_pct": 14.221987478076109,
   "diagnostic": false,
   "flags": [
    "structure_excluded"
   ],
   "start_distance_m": 448.0,
   "end_distance_m": 548.0,
   "start_elevation_m": 15.980357063711677,
   "end_elevation_m": 30.202344541787788,
   "min_gradient_pct": -5.29355551758295,
   "suppressed_max_gradient_pct": 18.76330931408134,
   "suppressed_location_m": [
    472.0,
    572.0
   ]
  }
 ],
 "shape": {
  "ascent_concentration": 0.44,
  "concentration_window_frac": 0.25,
  "longest_pitch_10pct_m": 58.0,
  "shape_class": "sustained"
 },
 "length_m": 586.7220480433109,
 "start_elevation_m": 1.213253404579012,
 "end_elevation_m": 36.40595262969913,
 "endpoint_gain_m": 35.192699225120116,
 "overall_gradient_pct": 5.998189320221735,
 "accumulated_ascent_m": 55.494736854352595,
 "window_maxima": {
  "max_5m": {
   "gradient_pct": 50.88572905611912,
   "start_distance_m": 526.0,
   "end_distance_m": 531.0,
   "midpoint_distance_m": 528.5,
   "start_elevation_m": 24.635623217677306,
   "end_elevation_m": 27.179909670483262,
   "start_xy": [
    122467.66078805347,
    897753.31721347
   ],
   "end_xy": [
    122471.2274609278,
    897756.8213317053
   ]
  },
  "max_10m": {
   "gradient_pct": 42.941507054634265,
   "start_distance_m": 522.0,
   "end_distance_m": 532.0,
   "midpoint_distance_m": 527.0,
   "start_elevation_m": 23.347439689688844,
   "end_elevation_m": 27.64159039515227,
   "start_xy": [
    122464.80744975401,
    897750.5139188817
   ],
   "end_xy": [
    122471.94079550267,
    897757.5221553524
   ]
  },
  "max_20m": {
   "gradient_pct": 28.929671099153023,
   "start_distance_m": 519.0,
   "end_distance_m": 539.0,
   "midpoint_distance_m": 529.0,
   "start_elevation_m": 22.674076445198462,
   "end_elevation_m": 28.460010665029067,
   "start_xy": [
    122462.66744602942,
    897748.4114479404
   ],
   "end_xy": [
    122476.93413752672,
    897762.427920882
   ]
  },
  "max_25m": {
   "gradient_pct": 27.00061991060464,
   "start_distance_m": 523.0,
   "end_distance_m": 548.0,
   "midpoint_distance_m": 535.5,
   "start_elevation_m": 23.452189564136628,
   "end_elevation_m": 30.202344541787788,
   "start_xy": [
    122465.52078432887,
    897751.2147425287
   ],
   "end_xy": [
    122483.35414870051,
    897768.7353337057
   ]
  },
  "max_50m": {
   "gradient_pct": 21.338191507830253,
   "start_distance_m": 487.0,
   "end_distance_m": 537.0,
   "midpoint_distance_m": 512.0,
   "start_elevation_m": 17.666871943352664,
   "end_elevation_m": 28.33596769726779,
   "start_xy": [
    122438.16080163016,
    897727.9619973
   ],
   "end_xy": [
    122475.50746837699,
    897761.0262735878
   ]
  },
  "max_100m": {
   "gradient_pct": 14.221987478076109,
   "start_distance_m": 448.0,
   "end_distance_m": 548.0,
   "midpoint_distance_m": 498.0,
   "start_elevation_m": 15.980357063711677,
   "end_elevation_m": 30.202344541787788,
   "start_xy": [
    122407.29043174174,
    897704.9058166676
   ],
   "end_xy": [
    122483.35414870051,
    897768.7353337057
   ]
  }
 },
 "window_minima": {
  "min_5m": {
   "gradient_pct": -37.302501107272725,
   "start_distance_m": 319.0,
   "end_distance_m": 324.0,
   "midpoint_distance_m": 321.5,
   "start_elevation_m": 15.984946334062913,
   "end_elevation_m": 14.119821278699277,
   "start_xy": [
    122297.45006441348,
    897697.0452256469
   ],
   "end_xy": [
    122302.16429295187,
    897695.3790776079
   ]
  },
  "min_10m": {
   "gradient_pct": -28.51177545063866,
   "start_distance_m": 319.0,
   "end_distance_m": 329.0,
   "midpoint_distance_m": 324.0,
   "start_elevation_m": 15.984946334062913,
   "end_elevation_m": 13.133768788999047,
   "start_xy": [
    122297.45006441348,
    897697.0452256469
   ],
   "end_xy": [
    122306.87852149026,
    897693.712929569
   ]
  },
  "min_20m": {
   "gradient_pct": -17.820870780461895,
   "start_distance_m": 309.0,
   "end_distance_m": 329.0,
   "midpoint_distance_m": 319.0,
   "start_elevation_m": 16.697942945091427,
   "end_elevation_m": 13.133768788999047,
   "start_xy": [
    122288.0216073367,
    897700.3775217249
   ],
   "end_xy": [
    122306.87852149026,
    897693.712929569
   ]
  },
  "min_25m": {
   "gradient_pct": -16.206533678922987,
   "start_distance_m": 306.0,
   "end_distance_m": 331.0,
   "midpoint_distance_m": 318.5,
   "start_elevation_m": 16.989370202335195,
   "end_elevation_m": 12.937736782604448,
   "start_xy": [
    122285.19307021367,
    897701.3772105484
   ],
   "end_xy": [
    122308.7642129056,
    897693.0464703533
   ]
  },
  "min_50m": {
   "gradient_pct": -9.12741343822508,
   "start_distance_m": 281.0,
   "end_distance_m": 331.0,
   "midpoint_distance_m": 306.0,
   "start_elevation_m": 17.501443501716988,
   "end_elevation_m": 12.937736782604448,
   "start_xy": [
    122261.62177992072,
    897709.7075330863
   ],
   "end_xy": [
    122308.7642129056,
    897693.0464703533
   ]
  },
  "min_100m": {
   "gradient_pct": -5.29355551758295,
   "start_distance_m": 231.0,
   "end_distance_m": 331.0,
   "midpoint_distance_m": 281.0,
   "start_elevation_m": 18.2312923001874,
   "end_elevation_m": 12.937736782604448,
   "start_xy": [
    122214.91032098005,
    897727.4310075999
   ],
   "end_xy": [
    122308.7642129056,
    897693.0464703533
   ]
  }
 },
 "diagnostic_window_maxima": {
  "max_2m": {
   "gradient_pct": 58.39378090911094,
   "start_distance_m": 526.0,
   "end_distance_m": 528.0,
   "midpoint_distance_m": 527.0,
   "start_elevation_m": 24.635623217677306,
   "end_elevation_m": 25.803498835859525,
   "start_xy": [
    122467.66078805347,
    897753.31721347
   ],
   "end_xy": [
    122469.0874572032,
    897754.7188607642
   ]
  },
  "max_3m": {
   "gradient_pct": 56.591293147853605,
   "start_distance_m": 525.0,
   "end_distance_m": 528.0,
   "midpoint_distance_m": 526.5,
   "start_elevation_m": 24.105760041423917,
   "end_elevation_m": 25.803498835859525,
   "start_xy": [
    122466.9474534786,
    897752.6163898229
   ],
   "end_xy": [
    122469.0874572032,
    897754.7188607642
   ]
  }
 },
 "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": 0.0,
   "obstruction_max_height_m": 1.29,
   "flagged_windows_m": []
  },
  "structure_suppression": {
   "masked_fraction": 0.072,
   "windows_resited": [
    2.0,
    3.0,
    50.0,
    100.0
   ],
   "windows_unresolved": []
  },
  "excluded_ranges_m": [
   [
    26.0,
    31.0
   ],
   [
    35.0,
    40.0
   ],
   [
    47.0,
    58.0
   ],
   [
    401.0,
    406.0
   ],
   [
    428.0,
    433.0
   ],
   [
    550.0,
    555.0
   ]
  ],
  "review": [
   "max5_over_45",
   "max10_over_40"
  ],
  "extent": [
   "may_continue_beyond_end"
  ]
 },
 "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": 0.5,
  "elevation_tiles": [
   "data/cache/scotland/outer-hebrides-2019-50cm/dtm/NG29NW.tif"
  ],
  "calculated_at": "2026-08-18T18:40:18+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": "Outer Hebrides LiDAR 50cm (2019)",
  "elevation_tile_ids": [
   "NG29NW"
  ],
  "climb_origin": "discovered",
  "notes": "Coarse pass: max 7.2% over 200 m (Terrain 50), gain 25.0 m over 448 m way. EXTENDED by graph walk: +2 segment(s) at base, +2 at top (stop: base=no_descending_continuation, top=no_ascending_continuation; min_avg=2.0%). Review before adopting. ADOPTED (Scotland launch 2026-08-18): clean-steep. AUTO-NAMED from gazetteer (hypothesis, unreviewed): was 'Discovered lane (57.8821, -6.6870)'.",
  "naming_note": "auto-named from gazetteer (hypothesis, unreviewed); discovered as 'Discovered lane (57.8821, -6.6870)'"
 },
 "area": {
  "place": "Carnach",
  "county": "Na h-Eileanan an Iar"
 }
}