{
 "ocl_version": "0.1.0",
 "name": "Discovered lane (52.0914, -3.9185)",
 "slug": "discovered-lane-52-0914-3-9185",
 "confidence": "B",
 "reported_claims": [],
 "ladder": [
  {
   "window_m": 2.0,
   "max_gradient_pct": 33.1922407659647,
   "diagnostic": true,
   "flags": [
    "texture_excluded"
   ],
   "start_distance_m": 256.0,
   "end_distance_m": 258.0,
   "start_elevation_m": 223.40326693243748,
   "end_elevation_m": 224.06711174775677,
   "min_gradient_pct": -48.81670955603994,
   "suppressed_max_gradient_pct": 50.23284619651207,
   "suppressed_location_m": [
    271.0,
    273.0
   ]
  },
  {
   "window_m": 3.0,
   "max_gradient_pct": 28.440739127494414,
   "diagnostic": true,
   "flags": [
    "texture_excluded",
    "texture_excluded",
    "canopy_or_structure"
   ],
   "start_distance_m": 53.0,
   "end_distance_m": 56.0,
   "start_elevation_m": 197.88077187284082,
   "end_elevation_m": 198.73399404666566,
   "min_gradient_pct": -35.600405950293634,
   "suppressed_max_gradient_pct": 43.612346776653034,
   "suppressed_location_m": [
    271.0,
    274.0
   ]
  },
  {
   "window_m": 5.0,
   "max_gradient_pct": 24.746788466325143,
   "diagnostic": false,
   "flags": [
    "texture_excluded",
    "canopy_or_structure"
   ],
   "start_distance_m": 44.0,
   "end_distance_m": 49.0,
   "start_elevation_m": 197.01525284577966,
   "end_elevation_m": 198.2525922690959,
   "min_gradient_pct": -22.09618292183336,
   "suppressed_max_gradient_pct": 31.488353232717827,
   "suppressed_location_m": [
    269.0,
    274.0
   ]
  },
  {
   "window_m": 10.0,
   "max_gradient_pct": 21.296732868173365,
   "diagnostic": false,
   "flags": [
    "texture_excluded",
    "texture_excluded",
    "canopy_or_structure"
   ],
   "start_distance_m": 40.0,
   "end_distance_m": 50.0,
   "start_elevation_m": 196.25913297255417,
   "end_elevation_m": 198.3888062593715,
   "min_gradient_pct": -9.876355958182899,
   "suppressed_max_gradient_pct": 26.385342691066285,
   "suppressed_location_m": [
    620.0,
    630.0
   ]
  },
  {
   "window_m": 20.0,
   "max_gradient_pct": 18.197640373554407,
   "diagnostic": false,
   "flags": [
    "texture_excluded",
    "texture_excluded",
    "canopy_or_structure"
   ],
   "start_distance_m": 999.0,
   "end_distance_m": 1019.0,
   "start_elevation_m": 274.0741730561589,
   "end_elevation_m": 277.71370113086977,
   "min_gradient_pct": -7.922420342464989,
   "suppressed_max_gradient_pct": 25.173024802536474,
   "suppressed_location_m": [
    618.0,
    638.0
   ]
  },
  {
   "window_m": 25.0,
   "max_gradient_pct": 18.17353992808762,
   "diagnostic": false,
   "flags": [
    "texture_excluded",
    "canopy_or_structure"
   ],
   "start_distance_m": 987.0,
   "end_distance_m": 1012.0,
   "start_elevation_m": 271.8772204839013,
   "end_elevation_m": 276.4206054659232,
   "min_gradient_pct": -7.437966724076432,
   "suppressed_max_gradient_pct": 21.44988084423585,
   "suppressed_location_m": [
    618.0,
    643.0
   ]
  },
  {
   "window_m": 50.0,
   "max_gradient_pct": 17.639942788315466,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 976.0,
   "end_distance_m": 1026.0,
   "start_elevation_m": 270.0064977680205,
   "end_elevation_m": 278.8264691621782,
   "min_gradient_pct": -4.965836264965674
  },
  {
   "window_m": 100.0,
   "max_gradient_pct": 16.255836559916986,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 965.0,
   "end_distance_m": 1065.0,
   "start_elevation_m": 268.5298365898376,
   "end_elevation_m": 284.7856731497546,
   "min_gradient_pct": -3.2694718787426496
  }
 ],
 "shape": {
  "ascent_concentration": 0.325,
  "concentration_window_frac": 0.25,
  "longest_pitch_10pct_m": 207.0,
  "shape_class": "sustained"
 },
 "length_m": 1327.9045587768912,
 "start_elevation_m": 193.42443393632382,
 "end_elevation_m": 308.9929233261132,
 "endpoint_gain_m": 115.56848938978939,
 "overall_gradient_pct": 8.703071965973024,
 "accumulated_ascent_m": 128.80079062376345,
 "window_maxima": {
  "max_5m": {
   "gradient_pct": 24.746788466325143,
   "start_distance_m": 44.0,
   "end_distance_m": 49.0,
   "midpoint_distance_m": 46.5,
   "start_elevation_m": 197.01525284577966,
   "end_elevation_m": 198.2525922690959,
   "start_xy": [
    266594.06691892096,
    245226.46859240462
   ],
   "end_xy": [
    266598.81925971963,
    245228.02270112807
   ]
  },
  "max_10m": {
   "gradient_pct": 21.296732868173365,
   "start_distance_m": 40.0,
   "end_distance_m": 50.0,
   "midpoint_distance_m": 45.0,
   "start_elevation_m": 196.25913297255417,
   "end_elevation_m": 198.3888062593715,
   "start_xy": [
    266590.26495167526,
    245225.22559475718
   ],
   "end_xy": [
    266599.76972587104,
    245228.33352920623
   ]
  },
  "max_20m": {
   "gradient_pct": 18.197640373554407,
   "start_distance_m": 999.0,
   "end_distance_m": 1019.0,
   "midpoint_distance_m": 1009.0,
   "start_elevation_m": 274.0741730561589,
   "end_elevation_m": 277.71370113086977,
   "start_xy": [
    267464.08563861327,
    245544.70584589266
   ],
   "end_xy": [
    267482.44286671,
    245552.64386407097
   ]
  },
  "max_25m": {
   "gradient_pct": 18.17353992808762,
   "start_distance_m": 987.0,
   "end_distance_m": 1012.0,
   "midpoint_distance_m": 999.5,
   "start_elevation_m": 271.8772204839013,
   "end_elevation_m": 276.4206054659232,
   "start_xy": [
    267453.1455081041,
    245539.78572462697
   ],
   "end_xy": [
    267476.01806471654,
    245549.86503016608
   ]
  },
  "max_50m": {
   "gradient_pct": 17.639942788315466,
   "start_distance_m": 976.0,
   "end_distance_m": 1026.0,
   "midpoint_distance_m": 1001.0,
   "start_elevation_m": 270.0064977680205,
   "end_elevation_m": 278.8264691621782,
   "start_xy": [
    267443.3928293473,
    245534.69797180133
   ],
   "end_xy": [
    267489.0762143166,
    245554.75246545539
   ]
  },
  "max_100m": {
   "gradient_pct": 16.255836559916986,
   "start_distance_m": 965.0,
   "end_distance_m": 1065.0,
   "midpoint_distance_m": 1015.0,
   "start_elevation_m": 268.5298365898376,
   "end_elevation_m": 284.7856731497546,
   "start_xy": [
    267433.84278346784,
    245529.2547396674
   ],
   "end_xy": [
    267527.75368461234,
    245558.579682853
   ]
  }
 },
 "window_minima": {
  "min_5m": {
   "gradient_pct": -22.09618292183336,
   "start_distance_m": 12.0,
   "end_distance_m": 17.0,
   "midpoint_distance_m": 14.5,
   "start_elevation_m": 193.7762079224637,
   "end_elevation_m": 192.67139877637203,
   "start_xy": [
    266563.6521448099,
    245216.52166635357
   ],
   "end_xy": [
    266568.404485351,
    245218.075774915
   ]
  },
  "min_10m": {
   "gradient_pct": -9.876355958182899,
   "start_distance_m": 7.0,
   "end_distance_m": 17.0,
   "midpoint_distance_m": 12.0,
   "start_elevation_m": 193.65903437219032,
   "end_elevation_m": 192.67139877637203,
   "start_xy": [
    266558.89980485156,
    245214.9675550619
   ],
   "end_xy": [
    266568.404485351,
    245218.075774915
   ]
  },
  "min_20m": {
   "gradient_pct": -7.922420342464989,
   "start_distance_m": 769.0,
   "end_distance_m": 789.0,
   "midpoint_distance_m": 779.0,
   "start_elevation_m": 265.1219895562518,
   "end_elevation_m": 263.5375054877588,
   "start_xy": [
    267273.03193949204,
    245427.0283801768
   ],
   "end_xy": [
    267292.89702359546,
    245429.02281035393
   ]
  },
  "min_25m": {
   "gradient_pct": -7.437966724076432,
   "start_distance_m": 765.0,
   "end_distance_m": 790.0,
   "midpoint_distance_m": 777.5,
   "start_elevation_m": 265.33412920910973,
   "end_elevation_m": 263.4746375280906,
   "start_xy": [
    267269.16311082535,
    245426.0124251806
   ],
   "end_xy": [
    267293.896910279,
    245429.03786256447
   ]
  },
  "min_50m": {
   "gradient_pct": -4.965836264965674,
   "start_distance_m": 746.0,
   "end_distance_m": 796.0,
   "midpoint_distance_m": 771.0,
   "start_elevation_m": 265.86733602578676,
   "end_elevation_m": 263.3844178933039,
   "start_xy": [
    267250.78676672495,
    245421.18438729562
   ],
   "end_xy": [
    267299.89618865884,
    245429.13086701854
   ]
  },
  "min_100m": {
   "gradient_pct": -3.2694718787426496,
   "start_distance_m": 699.0,
   "end_distance_m": 799.0,
   "midpoint_distance_m": 749.0,
   "start_elevation_m": 266.7455736791808,
   "end_elevation_m": 263.47610180043813,
   "start_xy": [
    267204.84679821884,
    245411.31177222275
   ],
   "end_xy": [
    267302.87606756116,
    245429.36241602417
   ]
  }
 },
 "diagnostic_window_maxima": {
  "max_2m": {
   "gradient_pct": 33.1922407659647,
   "start_distance_m": 256.0,
   "end_distance_m": 258.0,
   "midpoint_distance_m": 257.0,
   "start_elevation_m": 223.40326693243748,
   "end_elevation_m": 224.06711174775677,
   "start_xy": [
    266798.52882081945,
    245273.43977033097
   ],
   "end_xy": [
    266800.37467456504,
    245274.20972094094
   ]
  },
  "max_3m": {
   "gradient_pct": 28.440739127494414,
   "start_distance_m": 53.0,
   "end_distance_m": 56.0,
   "midpoint_distance_m": 54.5,
   "start_elevation_m": 197.88077187284082,
   "end_elevation_m": 198.73399404666566,
   "start_xy": [
    266602.6212285963,
    245229.2656937826
   ],
   "end_xy": [
    266605.47243692906,
    245230.19875907985
   ]
  }
 },
 "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": 0.005,
   "windows_resited": [],
   "windows_unresolved": []
  },
  "texture_suppression": {
   "masked_fraction": 0.053,
   "windows_resited": [
    3.0,
    10.0,
    20.0
   ],
   "windows_unresolved": []
  },
  "texture_windows": {
   "rounds": 2,
   "windows_masked": [
    {
     "window_m": 25.0,
     "start_m": 618.0,
     "end_m": 643.0,
     "raw_pct": 21.45,
     "reason": "hump"
    },
    {
     "window_m": 20.0,
     "start_m": 618.0,
     "end_m": 638.0,
     "raw_pct": 25.17,
     "reason": "hump"
    },
    {
     "window_m": 10.0,
     "start_m": 620.0,
     "end_m": 630.0,
     "raw_pct": 26.39,
     "reason": "hump"
    },
    {
     "window_m": 5.0,
     "start_m": 269.0,
     "end_m": 274.0,
     "raw_pct": 31.49,
     "reason": "short-step"
    },
    {
     "window_m": 20.0,
     "start_m": 172.0,
     "end_m": 192.0,
     "raw_pct": 18.58,
     "reason": "hump"
    }
   ],
   "advisory": [],
   "unresolved": []
  },
  "overhead_obstruction": {
   "obstruction_threshold_m": 2.0,
   "obstructed_fraction": 0.235,
   "obstruction_max_height_m": 21.16,
   "flagged_windows_m": [
    3,
    5,
    10,
    20,
    25,
    50,
    100
   ]
  },
  "excluded_ranges_m": [
   [
    14.0,
    19.0
   ],
   [
    170.0,
    194.0
   ],
   [
    267.0,
    276.0
   ],
   [
    616.0,
    645.0
   ]
  ],
  "review": [],
  "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/wales/dtm_1m/wg_del_28_266245_20220314dtm.tif",
   "data/cache/wales/dtm_1m/wg_del_28_267245_20220314dtm.tif"
  ],
  "calculated_at": "2026-09-12T00:09:29+00:00",
  "road_source": "OpenStreetMap (local PBF extract)",
  "road_attribution": "\u00a9 OpenStreetMap contributors, ODbL",
  "osm_pbf_path": "output/texture-uk-wales/batch-england-rchunk02.pbf",
  "osm_snapshot": "",
  "run_id": "texture-uk-wales-260911",
  "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_28_266245_20220314dtm.tif",
   "wg_del_28_267245_20220314dtm.tif"
  ],
  "elevation_capture_dates": [
   "15-03-2022"
  ],
  "climb_origin": "discovered",
  "license": "ODbL-1.0",
  "license_url": "https://howsteep.org/licensing"
 },
 "area": {
  "place": "Ffarmers",
  "county": "Sir Gaerfyrddin - Carmarthenshire"
 }
}