{
 "ocl_version": "0.1.0",
 "name": "Discovered lane (52.5112, -3.6015)",
 "slug": "discovered-lane-52-5112-3-6015",
 "confidence": "B",
 "reported_claims": [],
 "ladder": [
  {
   "window_m": 2.0,
   "max_gradient_pct": 41.21550225518149,
   "diagnostic": true,
   "flags": [
    "structure_excluded",
    "texture_excluded",
    "canopy_or_structure"
   ],
   "start_distance_m": 374.0,
   "end_distance_m": 376.0,
   "start_elevation_m": 266.57114536146844,
   "end_elevation_m": 267.39545540657207,
   "min_gradient_pct": -34.40780035638511,
   "suppressed_max_gradient_pct": 82.12436366674325,
   "suppressed_location_m": [
    322.0,
    324.0
   ]
  },
  {
   "window_m": 3.0,
   "max_gradient_pct": 38.58559933576468,
   "diagnostic": true,
   "flags": [
    "structure_excluded",
    "texture_excluded",
    "canopy_or_structure"
   ],
   "start_distance_m": 374.0,
   "end_distance_m": 377.0,
   "start_elevation_m": 266.57114536146844,
   "end_elevation_m": 267.7287133415414,
   "min_gradient_pct": -26.760124269054586,
   "suppressed_max_gradient_pct": 79.60341763754191,
   "suppressed_location_m": [
    322.0,
    325.0
   ]
  },
  {
   "window_m": 5.0,
   "max_gradient_pct": 32.48321113182328,
   "diagnostic": false,
   "flags": [
    "structure_excluded",
    "texture_excluded",
    "canopy_or_structure"
   ],
   "start_distance_m": 372.0,
   "end_distance_m": 377.0,
   "start_elevation_m": 266.1045527849502,
   "end_elevation_m": 267.7287133415414,
   "min_gradient_pct": -16.964585961445664,
   "suppressed_max_gradient_pct": 69.22791246842962,
   "suppressed_location_m": [
    320.0,
    325.0
   ]
  },
  {
   "window_m": 10.0,
   "max_gradient_pct": 26.11377460187441,
   "diagnostic": false,
   "flags": [
    "structure_excluded",
    "texture_excluded",
    "canopy_or_structure"
   ],
   "start_distance_m": 348.0,
   "end_distance_m": 358.0,
   "start_elevation_m": 261.1104141752361,
   "end_elevation_m": 263.72179163542353,
   "min_gradient_pct": -7.362297039427403,
   "suppressed_max_gradient_pct": 50.20458199836412,
   "suppressed_location_m": [
    317.0,
    327.0
   ]
  },
  {
   "window_m": 20.0,
   "max_gradient_pct": 22.150378046430035,
   "diagnostic": false,
   "flags": [
    "structure_excluded",
    "texture_excluded",
    "canopy_or_structure"
   ],
   "start_distance_m": 348.0,
   "end_distance_m": 368.0,
   "start_elevation_m": 261.1104141752361,
   "end_elevation_m": 265.5404897845221,
   "min_gradient_pct": -1.4853251344865726,
   "suppressed_max_gradient_pct": 34.76577285812425,
   "suppressed_location_m": [
    311.0,
    331.0
   ]
  },
  {
   "window_m": 25.0,
   "max_gradient_pct": 22.95480680501032,
   "diagnostic": false,
   "flags": [
    "structure_excluded",
    "texture_excluded",
    "canopy_or_structure"
   ],
   "start_distance_m": 352.0,
   "end_distance_m": 377.0,
   "start_elevation_m": 261.9900116402888,
   "end_elevation_m": 267.7287133415414,
   "min_gradient_pct": -0.32682518769343005,
   "suppressed_max_gradient_pct": 30.342637816497017,
   "suppressed_location_m": [
    311.0,
    336.0
   ]
  },
  {
   "window_m": 50.0,
   "max_gradient_pct": 19.275460369424763,
   "diagnostic": false,
   "flags": [
    "structure_excluded",
    "texture_excluded",
    "canopy_or_structure"
   ],
   "start_distance_m": 350.0,
   "end_distance_m": 400.0,
   "start_elevation_m": 261.49457802533715,
   "end_elevation_m": 271.13230821004953,
   "min_gradient_pct": 0.4020784601372043,
   "suppressed_max_gradient_pct": 24.966704770814317,
   "suppressed_location_m": [
    311.0,
    361.0
   ]
  },
  {
   "window_m": 100.0,
   "max_gradient_pct": 17.94266682696707,
   "diagnostic": false,
   "flags": [
    "structure_excluded",
    "canopy_or_structure"
   ],
   "start_distance_m": 331.0,
   "end_distance_m": 431.0,
   "start_elevation_m": 258.5842863153479,
   "end_elevation_m": 276.526953142315,
   "min_gradient_pct": 1.3659579697224444,
   "suppressed_max_gradient_pct": 21.070006981433554,
   "suppressed_location_m": [
    311.0,
    411.0
   ]
  }
 ],
 "shape": {
  "ascent_concentration": 0.441,
  "concentration_window_frac": 0.25,
  "longest_pitch_10pct_m": 241.0,
  "shape_class": "sustained"
 },
 "length_m": 2239.541656838007,
 "start_elevation_m": 209.7332795044338,
 "end_elevation_m": 401.1985250158699,
 "endpoint_gain_m": 191.4652455114361,
 "overall_gradient_pct": 8.549304940447705,
 "accumulated_ascent_m": 203.65989947521018,
 "window_maxima": {
  "max_5m": {
   "gradient_pct": 32.48321113182328,
   "start_distance_m": 372.0,
   "end_distance_m": 377.0,
   "midpoint_distance_m": 374.5,
   "start_elevation_m": 266.1045527849502,
   "end_elevation_m": 267.7287133415414,
   "start_xy": [
    291913.2779188716,
    291679.7676857214
   ],
   "end_xy": [
    291908.30459196144,
    291679.7658045968
   ]
  },
  "max_10m": {
   "gradient_pct": 26.11377460187441,
   "start_distance_m": 348.0,
   "end_distance_m": 358.0,
   "midpoint_distance_m": 353.0,
   "start_elevation_m": 261.1104141752361,
   "end_elevation_m": 263.72179163542353,
   "start_xy": [
    291937.1691872963,
    291682.0496242903
   ],
   "end_xy": [
    291927.2145084351,
    291681.098646534
   ]
  },
  "max_20m": {
   "gradient_pct": 22.150378046430035,
   "start_distance_m": 348.0,
   "end_distance_m": 368.0,
   "midpoint_distance_m": 358.0,
   "start_elevation_m": 261.1104141752361,
   "end_elevation_m": 265.5404897845221,
   "start_xy": [
    291937.1691872963,
    291682.0496242903
   ],
   "end_xy": [
    291917.2597336695,
    291680.1486680388
   ]
  },
  "max_25m": {
   "gradient_pct": 22.95480680501032,
   "start_distance_m": 352.0,
   "end_distance_m": 377.0,
   "midpoint_distance_m": 364.5,
   "start_elevation_m": 261.9900116402888,
   "end_elevation_m": 267.7287133415414,
   "start_xy": [
    291933.18727739085,
    291681.6696328837
   ],
   "end_xy": [
    291908.30459196144,
    291679.7658045968
   ]
  },
  "max_50m": {
   "gradient_pct": 19.275460369424763,
   "start_distance_m": 350.0,
   "end_distance_m": 400.0,
   "midpoint_distance_m": 375.0,
   "start_elevation_m": 261.49457802533715,
   "end_elevation_m": 271.13230821004953,
   "start_xy": [
    291935.1782323436,
    291681.85962858703
   ],
   "end_xy": [
    291885.4725038693,
    291682.5399053694
   ]
  },
  "max_100m": {
   "gradient_pct": 17.94266682696707,
   "start_distance_m": 331.0,
   "end_distance_m": 431.0,
   "midpoint_distance_m": 381.0,
   "start_elevation_m": 258.5842863153479,
   "end_elevation_m": 276.526953142315,
   "start_xy": [
    291953.55529961665,
    291679.82689314283
   ],
   "end_xy": [
    291854.57803022396,
    291683.00653298374
   ]
  }
 },
 "window_minima": {
  "min_5m": {
   "gradient_pct": -16.964585961445664,
   "start_distance_m": 1008.0,
   "end_distance_m": 1013.0,
   "midpoint_distance_m": 1010.5,
   "start_elevation_m": 342.9629360437995,
   "end_elevation_m": 342.11470674572723,
   "start_xy": [
    291495.2345546818,
    291562.47144981654
   ],
   "end_xy": [
    291490.323519877,
    291563.41045647976
   ]
  },
  "min_10m": {
   "gradient_pct": -7.362297039427403,
   "start_distance_m": 1003.0,
   "end_distance_m": 1013.0,
   "midpoint_distance_m": 1008.0,
   "start_elevation_m": 342.85093644967,
   "end_elevation_m": 342.11470674572723,
   "start_xy": [
    291500.14558948664,
    291561.53244315326
   ],
   "end_xy": [
    291490.323519877,
    291563.41045647976
   ]
  },
  "min_20m": {
   "gradient_pct": -1.4853251344865726,
   "start_distance_m": 1002.0,
   "end_distance_m": 1022.0,
   "midpoint_distance_m": 1012.0,
   "start_elevation_m": 342.8508831621371,
   "end_elevation_m": 342.5538181352398,
   "start_xy": [
    291501.1278569944,
    291561.34495900414
   ],
   "end_xy": [
    291481.48127623805,
    291565.08812095213
   ]
  },
  "min_25m": {
   "gradient_pct": -0.32682518769343005,
   "start_distance_m": 992.0,
   "end_distance_m": 1017.0,
   "midpoint_distance_m": 1004.5,
   "start_elevation_m": 342.34831517206953,
   "end_elevation_m": 342.2666088751462,
   "start_xy": [
    291510.95000635233,
    291559.467363346
   ],
   "end_xy": [
    291486.39464812475,
    291564.16143192723
   ]
  },
  "min_50m": {
   "gradient_pct": 0.4020784601372043,
   "start_distance_m": 2084.0,
   "end_distance_m": 2134.0,
   "midpoint_distance_m": 2109.0,
   "start_elevation_m": 395.5458634204714,
   "end_elevation_m": 395.74690265054,
   "start_xy": [
    290450.8141287622,
    291711.5351582634
   ],
   "end_xy": [
    290410.8855114525,
    291739.9867068337
   ]
  },
  "min_100m": {
   "gradient_pct": 1.3659579697224444,
   "start_distance_m": 2051.0,
   "end_distance_m": 2151.0,
   "midpoint_distance_m": 2101.0,
   "start_elevation_m": 394.7839696301815,
   "end_elevation_m": 396.14992759990395,
   "start_xy": [
    290480.9115159623,
    291698.00231392705
   ],
   "end_xy": [
    290398.1456256195,
    291751.24260592775
   ]
  }
 },
 "diagnostic_window_maxima": {
  "max_2m": {
   "gradient_pct": 41.21550225518149,
   "start_distance_m": 374.0,
   "end_distance_m": 376.0,
   "midpoint_distance_m": 375.0,
   "start_elevation_m": 266.57114536146844,
   "end_elevation_m": 267.39545540657207,
   "start_xy": [
    291911.2868091919,
    291679.57953621587
   ],
   "end_xy": [
    291909.2972603205,
    291679.64493504656
   ]
  },
  "max_3m": {
   "gradient_pct": 38.58559933576468,
   "start_distance_m": 374.0,
   "end_distance_m": 377.0,
   "midpoint_distance_m": 375.5,
   "start_elevation_m": 266.57114536146844,
   "end_elevation_m": 267.7287133415414,
   "start_xy": [
    291911.2868091919,
    291679.57953621587
   ],
   "end_xy": [
    291908.30459196144,
    291679.7658045968
   ]
  }
 },
 "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": 0.006,
   "windows_resited": [
    2.0,
    3.0,
    5.0,
    10.0,
    20.0,
    25.0,
    50.0,
    100.0
   ],
   "windows_unresolved": []
  },
  "no_bench_suppression": {
   "masked_fraction": 0.041,
   "windows_resited": [],
   "windows_unresolved": []
  },
  "texture_suppression": {
   "masked_fraction": 0.059,
   "windows_resited": [
    2.0,
    3.0,
    5.0,
    10.0,
    20.0,
    25.0,
    50.0
   ],
   "windows_unresolved": []
  },
  "texture_windows": {
   "rounds": 1,
   "windows_masked": [
    {
     "window_m": 25.0,
     "start_m": 61.0,
     "end_m": 86.0,
     "raw_pct": 24.55,
     "reason": "hump"
    },
    {
     "window_m": 20.0,
     "start_m": 64.0,
     "end_m": 84.0,
     "raw_pct": 24.99,
     "reason": "hump"
    },
    {
     "window_m": 10.0,
     "start_m": 75.0,
     "end_m": 85.0,
     "raw_pct": 29.25,
     "reason": "hump"
    },
    {
     "window_m": 5.0,
     "start_m": 191.0,
     "end_m": 196.0,
     "raw_pct": 38.51,
     "reason": "hump"
    }
   ],
   "advisory": [],
   "unresolved": []
  },
  "overhead_obstruction": {
   "obstruction_threshold_m": 2.0,
   "obstructed_fraction": 0.332,
   "obstruction_max_height_m": 23.64,
   "flagged_windows_m": [
    2,
    3,
    5,
    10,
    20,
    25,
    50,
    100
   ]
  },
  "excluded_ranges_m": [
   [
    59.0,
    88.0
   ],
   [
    189.0,
    198.0
   ],
   [
    200.0,
    250.0
   ],
   [
    290.0,
    330.0
   ]
  ],
  "review": [],
  "extent": [
   "may_start_earlier"
  ]
 },
 "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_290291_20220314dtm.tif",
   "data/cache/wales/dtm_1m/wg_del_28_291291_20220314dtm.tif",
   "data/cache/wales/dtm_1m/wg_del_28_292291_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-rchunk03.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_290291_20220314dtm.tif",
   "wg_del_28_291291_20220314dtm.tif",
   "wg_del_28_292291_20220314dtm.tif"
  ],
  "elevation_capture_dates": [
   "14-03-2022"
  ],
  "climb_origin": "discovered",
  "license": "ODbL-1.0",
  "license_url": "https://howsteep.org/licensing"
 },
 "area": {
  "place": "Llawr-y-glyn",
  "county": "Powys - Powys"
 }
}