{
 "ocl_version": "0.1.0",
 "name": "Discovered lane (53.1896, -3.8228)",
 "slug": "discovered-lane-53-1896-3-8228",
 "confidence": "B",
 "reported_claims": [],
 "ladder": [
  {
   "window_m": 2.0,
   "max_gradient_pct": 41.18035928300543,
   "diagnostic": true,
   "flags": [
    "structure_excluded",
    "texture_excluded",
    "canopy_or_structure"
   ],
   "start_distance_m": 152.0,
   "end_distance_m": 154.0,
   "start_elevation_m": 28.19306890688474,
   "end_elevation_m": 29.01667609254485,
   "min_gradient_pct": -62.05092727195307,
   "suppressed_max_gradient_pct": 65.13760013836088,
   "suppressed_location_m": [
    60.0,
    62.0
   ]
  },
  {
   "window_m": 3.0,
   "max_gradient_pct": 31.609199023469614,
   "diagnostic": true,
   "flags": [
    "structure_excluded",
    "texture_excluded",
    "texture_excluded",
    "canopy_or_structure"
   ],
   "start_distance_m": 151.0,
   "end_distance_m": 154.0,
   "start_elevation_m": 28.06840012184076,
   "end_elevation_m": 29.01667609254485,
   "min_gradient_pct": -51.94104239772107,
   "suppressed_max_gradient_pct": 61.810159628882154,
   "suppressed_location_m": [
    59.0,
    62.0
   ]
  },
  {
   "window_m": 5.0,
   "max_gradient_pct": 23.48600947810702,
   "diagnostic": false,
   "flags": [
    "structure_excluded",
    "texture_excluded",
    "texture_excluded",
    "texture_excluded",
    "canopy_or_structure"
   ],
   "start_distance_m": 112.0,
   "end_distance_m": 117.0,
   "start_elevation_m": 21.38392481583466,
   "end_elevation_m": 22.55822528974001,
   "min_gradient_pct": -35.249520102346175,
   "suppressed_max_gradient_pct": 57.06559014939146,
   "suppressed_location_m": [
    59.0,
    64.0
   ]
  },
  {
   "window_m": 10.0,
   "max_gradient_pct": 18.135139782689293,
   "diagnostic": false,
   "flags": [
    "structure_excluded",
    "texture_excluded",
    "texture_excluded",
    "texture_excluded",
    "canopy_or_structure"
   ],
   "start_distance_m": 108.0,
   "end_distance_m": 118.0,
   "start_elevation_m": 20.884647112559662,
   "end_elevation_m": 22.69816109082859,
   "min_gradient_pct": -14.924910581072055,
   "suppressed_max_gradient_pct": 40.77628607859996,
   "suppressed_location_m": [
    56.0,
    66.0
   ]
  },
  {
   "window_m": 20.0,
   "max_gradient_pct": 14.985932381160314,
   "diagnostic": false,
   "flags": [
    "structure_excluded",
    "texture_excluded",
    "texture_excluded",
    "texture_excluded",
    "canopy_or_structure"
   ],
   "start_distance_m": 111.0,
   "end_distance_m": 131.0,
   "start_elevation_m": 21.1597706519564,
   "end_elevation_m": 24.156957128188463,
   "min_gradient_pct": -3.4841929944993666,
   "suppressed_max_gradient_pct": 32.464152477045836,
   "suppressed_location_m": [
    25.0,
    45.0
   ]
  },
  {
   "window_m": 25.0,
   "max_gradient_pct": 16.04451036853193,
   "diagnostic": false,
   "flags": [
    "structure_excluded",
    "texture_excluded",
    "texture_excluded",
    "canopy_or_structure"
   ],
   "start_distance_m": 111.0,
   "end_distance_m": 136.0,
   "start_elevation_m": 21.1597706519564,
   "end_elevation_m": 25.170898244089383,
   "min_gradient_pct": -1.5778815233170747,
   "suppressed_max_gradient_pct": 29.17870868277832,
   "suppressed_location_m": [
    20.0,
    45.0
   ]
  },
  {
   "window_m": 50.0,
   "max_gradient_pct": 13.39951102444551,
   "diagnostic": false,
   "flags": [
    "structure_excluded",
    "texture_excluded",
    "canopy_or_structure"
   ],
   "start_distance_m": 86.0,
   "end_distance_m": 136.0,
   "start_elevation_m": 18.471142731866628,
   "end_elevation_m": 25.170898244089383,
   "min_gradient_pct": 1.6957323403791236,
   "suppressed_max_gradient_pct": 21.298573091035088,
   "suppressed_location_m": [
    16.0,
    66.0
   ]
  },
  {
   "window_m": 100.0,
   "max_gradient_pct": 5.475026119786371,
   "diagnostic": false,
   "flags": [
    "structure_excluded",
    "texture_excluded",
    "texture_excluded",
    "canopy_or_structure"
   ],
   "start_distance_m": 315.0,
   "end_distance_m": 415.0,
   "start_elevation_m": 41.255293903654135,
   "end_elevation_m": 46.730320023440505,
   "min_gradient_pct": 2.708586352761401,
   "suppressed_max_gradient_pct": 16.87006841399861,
   "suppressed_location_m": [
    54.0,
    154.0
   ]
  }
 ],
 "shape": {
  "ascent_concentration": 0.402,
  "concentration_window_frac": 0.25,
  "longest_pitch_10pct_m": 54.0,
  "shape_class": "sustained"
 },
 "length_m": 415.769592305419,
 "start_elevation_m": 4.506770101990952,
 "end_elevation_m": 46.83947157667019,
 "endpoint_gain_m": 42.33270147467924,
 "overall_gradient_pct": 10.181769484378787,
 "accumulated_ascent_m": 47.98693996738852,
 "window_maxima": {
  "max_5m": {
   "gradient_pct": 23.48600947810702,
   "start_distance_m": 112.0,
   "end_distance_m": 117.0,
   "midpoint_distance_m": 114.5,
   "start_elevation_m": 21.38392481583466,
   "end_elevation_m": 22.55822528974001,
   "start_xy": [
    278203.23207531543,
    367487.8705717908
   ],
   "end_xy": [
    278208.21723111765,
    367488.24494113604
   ]
  },
  "max_10m": {
   "gradient_pct": 18.135139782689293,
   "start_distance_m": 108.0,
   "end_distance_m": 118.0,
   "midpoint_distance_m": 113.0,
   "start_elevation_m": 20.884647112559662,
   "end_elevation_m": 22.69816109082859,
   "start_xy": [
    278199.3051476317,
    367487.10973732185
   ],
   "end_xy": [
    278209.21505152615,
    367488.3109292592
   ]
  },
  "max_20m": {
   "gradient_pct": 14.985932381160314,
   "start_distance_m": 111.0,
   "end_distance_m": 131.0,
   "midpoint_distance_m": 121.0,
   "start_elevation_m": 21.1597706519564,
   "end_elevation_m": 24.156957128188463,
   "start_xy": [
    278202.2501130443,
    367487.68173062976
   ],
   "end_xy": [
    278222.18677443813,
    367489.16789713275
   ]
  },
  "max_25m": {
   "gradient_pct": 16.04451036853193,
   "start_distance_m": 111.0,
   "end_distance_m": 136.0,
   "midpoint_distance_m": 123.5,
   "start_elevation_m": 21.1597706519564,
   "end_elevation_m": 25.170898244089383,
   "start_xy": [
    278202.2501130443,
    367487.68173062976
   ],
   "end_xy": [
    278227.17593656963,
    367489.4969216569
   ]
  },
  "max_50m": {
   "gradient_pct": 13.39951102444551,
   "start_distance_m": 86.0,
   "end_distance_m": 136.0,
   "midpoint_distance_m": 111.0,
   "start_elevation_m": 18.471142731866628,
   "end_elevation_m": 25.170898244089383,
   "start_xy": [
    278198.3719932692,
    367467.6560625269
   ],
   "end_xy": [
    278227.17593656963,
    367489.4969216569
   ]
  },
  "max_100m": {
   "gradient_pct": 5.475026119786371,
   "start_distance_m": 315.0,
   "end_distance_m": 415.0,
   "midpoint_distance_m": 365.0,
   "start_elevation_m": 41.255293903654135,
   "end_elevation_m": 46.730320023440505,
   "start_xy": [
    278332.8643806508,
    367356.08542784984
   ],
   "end_xy": [
    278378.6575774627,
    367270.8594198722
   ]
  }
 },
 "window_minima": {
  "min_5m": {
   "gradient_pct": -35.249520102346175,
   "start_distance_m": 46.0,
   "end_distance_m": 51.0,
   "midpoint_distance_m": 48.5,
   "start_elevation_m": 13.738826616306719,
   "end_elevation_m": 11.97635061118941,
   "start_xy": [
    278202.56599996466,
    367427.88201767806
   ],
   "end_xy": [
    278202.1340176601,
    367432.85883746174
   ]
  },
  "min_10m": {
   "gradient_pct": -14.924910581072055,
   "start_distance_m": 45.0,
   "end_distance_m": 55.0,
   "midpoint_distance_m": 50.0,
   "start_elevation_m": 13.765712895493259,
   "end_elevation_m": 12.273221837386053,
   "start_xy": [
    278202.2860049499,
    367426.92201697093
   ],
   "end_xy": [
    278201.7040369654,
    367436.83565943927
   ]
  },
  "min_20m": {
   "gradient_pct": -3.4841929944993666,
   "start_distance_m": 154.0,
   "end_distance_m": 174.0,
   "midpoint_distance_m": 164.0,
   "start_elevation_m": 29.01667609254485,
   "end_elevation_m": 28.319837493644975,
   "start_xy": [
    278243.9649027585,
    367488.7315120477
   ],
   "end_xy": [
    278249.3439240607,
    367469.46843570814
   ]
  },
  "min_25m": {
   "gradient_pct": -1.5778815233170747,
   "start_distance_m": 299.0,
   "end_distance_m": 324.0,
   "midpoint_distance_m": 311.5,
   "start_elevation_m": 41.61206965410744,
   "end_elevation_m": 41.21759927327817,
   "start_xy": [
    278323.50818433834,
    367369.0647000028
   ],
   "end_xy": [
    278338.1272575148,
    367348.7845985564
   ]
  },
  "min_50m": {
   "gradient_pct": 1.6957323403791236,
   "start_distance_m": 295.0,
   "end_distance_m": 345.0,
   "midpoint_distance_m": 320.0,
   "start_elevation_m": 41.42696556405552,
   "end_elevation_m": 42.27483173424508,
   "start_xy": [
    278321.16923238535,
    367372.3095885523
   ],
   "end_xy": [
    278350.90086495184,
    367332.1583097184
   ]
  },
  "min_100m": {
   "gradient_pct": 2.708586352761401,
   "start_distance_m": 299.0,
   "end_distance_m": 399.0,
   "midpoint_distance_m": 349.0,
   "start_elevation_m": 41.61206965410744,
   "end_elevation_m": 44.32065600686884,
   "start_xy": [
    278323.50818433834,
    367369.0647000028
   ],
   "end_xy": [
    278367.8179136111,
    367282.37901540165
   ]
  }
 },
 "diagnostic_window_maxima": {
  "max_2m": {
   "gradient_pct": 41.18035928300543,
   "start_distance_m": 152.0,
   "end_distance_m": 154.0,
   "midpoint_distance_m": 153.0,
   "start_elevation_m": 28.19306890688474,
   "end_elevation_m": 29.01667609254485,
   "start_xy": [
    278243.1330633899,
    367490.5187909871
   ],
   "end_xy": [
    278243.9649027585,
    367488.7315120477
   ]
  },
  "max_3m": {
   "gradient_pct": 31.609199023469614,
   "start_distance_m": 151.0,
   "end_distance_m": 154.0,
   "midpoint_distance_m": 152.5,
   "start_elevation_m": 28.06840012184076,
   "end_elevation_m": 29.01667609254485,
   "start_xy": [
    278242.14330730453,
    367490.485735557
   ],
   "end_xy": [
    278243.9649027585,
    367488.7315120477
   ]
  }
 },
 "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": {
  "structure_suppression": {
   "masked_fraction": 0.046,
   "windows_resited": [
    2.0,
    3.0,
    5.0,
    10.0,
    20.0,
    25.0,
    50.0,
    100.0
   ],
   "windows_unresolved": []
  },
  "texture_suppression": {
   "masked_fraction": 0.224,
   "windows_resited": [
    2.0,
    3.0,
    5.0,
    10.0,
    20.0,
    100.0
   ],
   "windows_unresolved": []
  },
  "texture_windows": {
   "rounds": 3,
   "windows_masked": [
    {
     "window_m": 25.0,
     "start_m": 15.0,
     "end_m": 40.0,
     "raw_pct": 23.31,
     "reason": "edge-step+hump+mask-edge"
    },
    {
     "window_m": 20.0,
     "start_m": 20.0,
     "end_m": 40.0,
     "raw_pct": 25.2,
     "reason": "edge-step+hump+mask-edge"
    },
    {
     "window_m": 10.0,
     "start_m": 28.0,
     "end_m": 38.0,
     "raw_pct": 32.45,
     "reason": "hump+mask-edge"
    },
    {
     "window_m": 5.0,
     "start_m": 32.0,
     "end_m": 37.0,
     "raw_pct": 39.29,
     "reason": "hump"
    },
    {
     "window_m": 5.0,
     "start_m": 141.0,
     "end_m": 146.0,
     "raw_pct": 34.29,
     "reason": "short-step"
    },
    {
     "window_m": 20.0,
     "start_m": 185.0,
     "end_m": 205.0,
     "raw_pct": 17.33,
     "reason": "hump"
    },
    {
     "window_m": 10.0,
     "start_m": 196.0,
     "end_m": 206.0,
     "raw_pct": 22.76,
     "reason": "hump"
    },
    {
     "window_m": 5.0,
     "start_m": 290.0,
     "end_m": 295.0,
     "raw_pct": 31.69,
     "reason": "hump+short-step"
    }
   ],
   "advisory": [],
   "unresolved": []
  },
  "overhead_obstruction": {
   "obstruction_threshold_m": 2.0,
   "obstructed_fraction": 0.626,
   "obstruction_max_height_m": 15.57,
   "flagged_windows_m": [
    2,
    3,
    5,
    10,
    20,
    25,
    50,
    100
   ]
  },
  "excluded_ranges_m": [
   [
    13.0,
    50.0
   ],
   [
    58.0,
    66.0
   ],
   [
    139.0,
    148.0
   ],
   [
    183.0,
    208.0
   ],
   [
    288.0,
    297.0
   ]
  ],
  "review": [],
  "extent": [
   "may_start_earlier",
   "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": 1.0,
  "elevation_tiles": [
   "data/cache/wales/dtm_1m/wg_del_29_278367_20220319dtm.tif"
  ],
  "calculated_at": "2026-09-12T01:43:05+00:00",
  "road_source": "OpenStreetMap (local PBF extract)",
  "road_attribution": "\u00a9 OpenStreetMap contributors, ODbL",
  "osm_pbf_path": "output/texture-uk-wales/batch-england-rchunk05.pbf",
  "osm_snapshot": "",
  "run_id": "texture-uk-wales-260912",
  "elevation_provider": "Welsh Government",
  "elevation_dataset": "Welsh Government LiDAR 1m DTM (2020-2023)",
  "elevation_licence": "Open Government Licence v3 \u2014 \u00a9 Crown copyright Welsh Government",
  "elevation_catalogue_layer": "geonode:welsh_government_lidar_tile_catalogue_2020_2023",
  "elevation_tile_ids": [
   "wg_del_29_278367_20220319dtm.tif"
  ],
  "elevation_capture_dates": [
   "19-03-2022"
  ],
  "climb_origin": "discovered",
  "license": "ODbL-1.0",
  "license_url": "https://howsteep.org/licensing"
 },
 "area": {
  "place": "Dolgarrog",
  "county": "Conwy - Conwy"
 }
}