{
 "ocl_version": "0.1.0",
 "name": "Discovered lane (51.9585, -3.7742)",
 "slug": "discovered-lane-51-9585-3-7742",
 "confidence": "B",
 "reported_claims": [],
 "ladder": [
  {
   "window_m": 2.0,
   "max_gradient_pct": 46.15199384774513,
   "diagnostic": true,
   "flags": [
    "structure_excluded"
   ],
   "start_distance_m": 1359.0,
   "end_distance_m": 1361.0,
   "start_elevation_m": 152.0413305154216,
   "end_elevation_m": 152.9643703923765,
   "min_gradient_pct": -64.37053321010637,
   "suppressed_max_gradient_pct": 60.61285706722401,
   "suppressed_location_m": [
    3711.0,
    3713.0
   ]
  },
  {
   "window_m": 3.0,
   "max_gradient_pct": 36.00402845483851,
   "diagnostic": true,
   "flags": [
    "structure_excluded",
    "texture_excluded",
    "texture_excluded",
    "canopy_or_structure"
   ],
   "start_distance_m": 509.0,
   "end_distance_m": 512.0,
   "start_elevation_m": 131.98732287382063,
   "end_elevation_m": 133.0674437274658,
   "min_gradient_pct": -48.3769745531608,
   "suppressed_max_gradient_pct": 58.701370197625614,
   "suppressed_location_m": [
    3710.0,
    3713.0
   ]
  },
  {
   "window_m": 5.0,
   "max_gradient_pct": 31.349312859341012,
   "diagnostic": false,
   "flags": [
    "structure_excluded",
    "texture_excluded",
    "texture_excluded"
   ],
   "start_distance_m": 1346.0,
   "end_distance_m": 1351.0,
   "start_elevation_m": 149.43600724752733,
   "end_elevation_m": 151.00347289049438,
   "min_gradient_pct": -38.392890127166766,
   "suppressed_max_gradient_pct": 49.83322905882574,
   "suppressed_location_m": [
    3709.0,
    3714.0
   ]
  },
  {
   "window_m": 10.0,
   "max_gradient_pct": 28.009474284123996,
   "diagnostic": false,
   "flags": [
    "structure_excluded",
    "texture_excluded",
    "texture_excluded"
   ],
   "start_distance_m": 1343.0,
   "end_distance_m": 1353.0,
   "start_elevation_m": 148.65721103219494,
   "end_elevation_m": 151.45815846060734,
   "min_gradient_pct": -30.894955605803602,
   "suppressed_max_gradient_pct": 33.77175603491935,
   "suppressed_location_m": [
    3708.0,
    3718.0
   ]
  },
  {
   "window_m": 20.0,
   "max_gradient_pct": 23.403630699085056,
   "diagnostic": false,
   "flags": [
    "structure_excluded",
    "texture_excluded"
   ],
   "start_distance_m": 1337.0,
   "end_distance_m": 1357.0,
   "start_elevation_m": 147.50408210930487,
   "end_elevation_m": 152.1848082491219,
   "min_gradient_pct": -22.974331914679595,
   "suppressed_max_gradient_pct": 28.358721031171115,
   "suppressed_location_m": [
    3709.0,
    3729.0
   ]
  },
  {
   "window_m": 25.0,
   "max_gradient_pct": 22.59413617645498,
   "diagnostic": false,
   "flags": [
    "structure_excluded",
    "texture_excluded",
    "texture_excluded"
   ],
   "start_distance_m": 1336.0,
   "end_distance_m": 1361.0,
   "start_elevation_m": 147.31583634826276,
   "end_elevation_m": 152.9643703923765,
   "min_gradient_pct": -22.249703386056808,
   "suppressed_max_gradient_pct": 27.21455982202633,
   "suppressed_location_m": [
    3708.0,
    3733.0
   ]
  },
  {
   "window_m": 50.0,
   "max_gradient_pct": 21.011189489294793,
   "diagnostic": false,
   "flags": [
    "structure_excluded",
    "canopy_or_structure"
   ],
   "start_distance_m": 1391.0,
   "end_distance_m": 1441.0,
   "start_elevation_m": 157.66140271253678,
   "end_elevation_m": 168.16699745718418,
   "min_gradient_pct": -21.236063692328344,
   "suppressed_max_gradient_pct": 24.050382717191496,
   "suppressed_location_m": [
    3709.0,
    3759.0
   ]
  },
  {
   "window_m": 100.0,
   "max_gradient_pct": 19.90198006682357,
   "diagnostic": false,
   "flags": [
    "structure_excluded",
    "canopy_or_structure"
   ],
   "start_distance_m": 1340.0,
   "end_distance_m": 1440.0,
   "start_elevation_m": 148.09630584866426,
   "end_elevation_m": 167.99828591548783,
   "min_gradient_pct": -17.372470313986867,
   "suppressed_max_gradient_pct": 20.027895978024617,
   "suppressed_location_m": [
    3661.0,
    3761.0
   ]
  }
 ],
 "shape": {
  "ascent_concentration": 0.34,
  "concentration_window_frac": 0.25,
  "longest_pitch_10pct_m": 195.0,
  "shape_class": "sustained"
 },
 "length_m": 3761.4371757677814,
 "start_elevation_m": 112.02735496463792,
 "end_elevation_m": 303.5054568179289,
 "endpoint_gain_m": 191.47810185329098,
 "overall_gradient_pct": 5.090556957506718,
 "accumulated_ascent_m": 250.21525850945648,
 "window_maxima": {
  "max_5m": {
   "gradient_pct": 31.349312859341012,
   "start_distance_m": 1346.0,
   "end_distance_m": 1351.0,
   "midpoint_distance_m": 1348.5,
   "start_elevation_m": 149.43600724752733,
   "end_elevation_m": 151.00347289049438,
   "start_xy": [
    278412.8729625542,
    230285.8640513456
   ],
   "end_xy": [
    278417.85880538577,
    230286.2400395225
   ]
  },
  "max_10m": {
   "gradient_pct": 28.009474284123996,
   "start_distance_m": 1343.0,
   "end_distance_m": 1353.0,
   "midpoint_distance_m": 1348.0,
   "start_elevation_m": 148.65721103219494,
   "end_elevation_m": 151.45815846060734,
   "start_xy": [
    278409.87927490816,
    230285.69523722382
   ],
   "end_xy": [
    278419.8531717415,
    230286.39004897856
   ]
  },
  "max_20m": {
   "gradient_pct": 23.403630699085056,
   "start_distance_m": 1337.0,
   "end_distance_m": 1357.0,
   "midpoint_distance_m": 1347.0,
   "start_elevation_m": 147.50408210930487,
   "end_elevation_m": 152.1848082491219,
   "start_xy": [
    278403.9068163154,
    230286.25777387043
   ],
   "end_xy": [
    278423.8419060166,
    230286.6900470925
   ]
  },
  "max_25m": {
   "gradient_pct": 22.59413617645498,
   "start_distance_m": 1336.0,
   "end_distance_m": 1361.0,
   "midpoint_distance_m": 1348.5,
   "start_elevation_m": 147.31583634826276,
   "end_elevation_m": 152.9643703923765,
   "start_xy": [
    278402.91155761475,
    230286.35503609182
   ],
   "end_xy": [
    278427.83064164524,
    230286.990027205
   ]
  },
  "max_50m": {
   "gradient_pct": 21.011189489294793,
   "start_distance_m": 1391.0,
   "end_distance_m": 1441.0,
   "midpoint_distance_m": 1416.0,
   "start_elevation_m": 157.66140271253678,
   "end_elevation_m": 168.16699745718418,
   "start_xy": [
    278457.74591890484,
    230289.24304806205
   ],
   "end_xy": [
    278507.3680977875,
    230286.2010017404
   ]
  },
  "max_100m": {
   "gradient_pct": 19.90198006682357,
   "start_distance_m": 1340.0,
   "end_distance_m": 1440.0,
   "midpoint_distance_m": 1390.0,
   "start_elevation_m": 148.09630584866426,
   "end_elevation_m": 167.99828591548783,
   "start_xy": [
    278406.892476843,
    230285.96480730592
   ],
   "end_xy": [
    278506.3788140103,
    230286.3470072341
   ]
  }
 },
 "window_minima": {
  "min_5m": {
   "gradient_pct": -38.392890127166766,
   "start_distance_m": 1161.0,
   "end_distance_m": 1166.0,
   "midpoint_distance_m": 1163.5,
   "start_elevation_m": 152.51636387344905,
   "end_elevation_m": 150.5967193670907,
   "start_xy": [
    278242.7975070341,
    230349.01449119355
   ],
   "end_xy": [
    278247.2191940091,
    230346.68025016694
   ]
  },
  "min_10m": {
   "gradient_pct": -30.894955605803602,
   "start_distance_m": 1161.0,
   "end_distance_m": 1171.0,
   "midpoint_distance_m": 1166.0,
   "start_elevation_m": 152.51636387344905,
   "end_elevation_m": 149.4268683128687,
   "start_xy": [
    278242.7975070341,
    230349.01449119355
   ],
   "end_xy": [
    278251.6405857663,
    230344.34544960083
   ]
  },
  "min_20m": {
   "gradient_pct": -22.974331914679595,
   "start_distance_m": 1186.0,
   "end_distance_m": 1206.0,
   "midpoint_distance_m": 1196.0,
   "start_elevation_m": 147.46075787379908,
   "end_elevation_m": 142.86589149086316,
   "start_xy": [
    278264.9050338196,
    230337.341565243
   ],
   "end_xy": [
    278282.40789342695,
    230327.67807921252
   ]
  },
  "min_25m": {
   "gradient_pct": -22.249703386056808,
   "start_distance_m": 1186.0,
   "end_distance_m": 1211.0,
   "midpoint_distance_m": 1198.5,
   "start_elevation_m": 147.46075787379908,
   "end_elevation_m": 141.89833202728488,
   "start_xy": [
    278264.9050338196,
    230337.341565243
   ],
   "end_xy": [
    278286.6911910153,
    230325.0986691203
   ]
  },
  "min_50m": {
   "gradient_pct": -21.236063692328344,
   "start_distance_m": 1161.0,
   "end_distance_m": 1211.0,
   "midpoint_distance_m": 1186.0,
   "start_elevation_m": 152.51636387344905,
   "end_elevation_m": 141.89833202728488,
   "start_xy": [
    278242.7975070341,
    230349.01449119355
   ],
   "end_xy": [
    278286.6911910153,
    230325.0986691203
   ]
  },
  "min_100m": {
   "gradient_pct": -17.372470313986867,
   "start_distance_m": 1118.0,
   "end_distance_m": 1218.0,
   "midpoint_distance_m": 1168.0,
   "start_elevation_m": 157.99556303882608,
   "end_elevation_m": 140.6230927248392,
   "start_xy": [
    278204.7722030724,
    230369.0912453844
   ],
   "end_xy": [
    278292.68748371064,
    230321.48695608095
   ]
  }
 },
 "diagnostic_window_maxima": {
  "max_2m": {
   "gradient_pct": 46.15199384774513,
   "start_distance_m": 1359.0,
   "end_distance_m": 1361.0,
   "midpoint_distance_m": 1360.0,
   "start_elevation_m": 152.0413305154216,
   "end_elevation_m": 152.9643703923765,
   "start_xy": [
    278425.83627664304,
    230286.83999974746
   ],
   "end_xy": [
    278427.83064164524,
    230286.990027205
   ]
  },
  "max_3m": {
   "gradient_pct": 36.00402845483851,
   "start_distance_m": 509.0,
   "end_distance_m": 512.0,
   "midpoint_distance_m": 510.5,
   "start_elevation_m": 131.98732287382063,
   "end_elevation_m": 133.0674437274658,
   "start_xy": [
    277640.0198291499,
    230352.51430788828
   ],
   "end_xy": [
    277642.78927605,
    230351.4941471137
   ]
  }
 },
 "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": 0.004,
   "windows_resited": [
    2.0,
    3.0,
    5.0,
    10.0,
    20.0,
    25.0,
    50.0,
    100.0
   ],
   "windows_unresolved": []
  },
  "texture_suppression": {
   "masked_fraction": 0.02,
   "windows_resited": [
    3.0,
    5.0,
    10.0,
    25.0
   ],
   "windows_unresolved": []
  },
  "texture_windows": {
   "rounds": 2,
   "windows_masked": [
    {
     "window_m": 25.0,
     "start_m": 2987.0,
     "end_m": 3012.0,
     "raw_pct": 24.68,
     "reason": "hump"
    },
    {
     "window_m": 20.0,
     "start_m": 2990.0,
     "end_m": 3010.0,
     "raw_pct": 26.62,
     "reason": "hump"
    },
    {
     "window_m": 10.0,
     "start_m": 2990.0,
     "end_m": 3000.0,
     "raw_pct": 29.98,
     "reason": "hump"
    },
    {
     "window_m": 5.0,
     "start_m": 2990.0,
     "end_m": 2995.0,
     "raw_pct": 36.61,
     "reason": "hump"
    },
    {
     "window_m": 25.0,
     "start_m": 3736.0,
     "end_m": 3761.0,
     "raw_pct": 22.66,
     "reason": "staircase"
    }
   ],
   "advisory": [],
   "unresolved": []
  },
  "overhead_obstruction": {
   "obstruction_threshold_m": 2.0,
   "obstructed_fraction": 0.214,
   "obstruction_max_height_m": 23.88,
   "flagged_windows_m": [
    3,
    50,
    100
   ]
  },
  "excluded_ranges_m": [
   [
    1155.0,
    1164.0
   ],
   [
    2985.0,
    3014.0
   ],
   [
    3709.0,
    3714.0
   ],
   [
    3734.0,
    3761.0
   ]
  ],
  "review": [],
  "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": 1.0,
  "elevation_tiles": [
   "data/cache/wales/dtm_1m/wg_del_18_277230_20211201dtm.tif",
   "data/cache/wales/dtm_1m/wg_del_18_278230_20211201dtm.tif",
   "data/cache/wales/dtm_1m/wg_del_18_279230_20211201dtm.tif",
   "data/cache/wales/dtm_1m/wg_del_18_280230_20211201dtm.tif"
  ],
  "calculated_at": "2026-09-12T00:09:45+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_18_277230_20211201dtm.tif",
   "wg_del_18_278230_20211201dtm.tif",
   "wg_del_18_279230_20211201dtm.tif",
   "wg_del_18_280230_20211201dtm.tif"
  ],
  "elevation_capture_dates": [
   "01-12-2021"
  ],
  "climb_origin": "discovered",
  "license": "ODbL-1.0",
  "license_url": "https://howsteep.org/licensing"
 },
 "area": {
  "place": "Myddfai",
  "county": "Sir Gaerfyrddin - Carmarthenshire"
 }
}