{
 "ocl_version": "0.1.0",
 "name": "Discovered lane (53.2465, -3.6832)",
 "slug": "discovered-lane-53-2465-3-6832",
 "confidence": "B",
 "reported_claims": [],
 "ladder": [
  {
   "window_m": 2.0,
   "max_gradient_pct": 36.90847189543547,
   "diagnostic": true,
   "flags": [
    "structure_excluded",
    "texture_excluded",
    "texture_excluded"
   ],
   "start_distance_m": 302.0,
   "end_distance_m": 304.0,
   "start_elevation_m": 128.97368226940915,
   "end_elevation_m": 129.71185170731786,
   "min_gradient_pct": -39.95355905405802,
   "suppressed_max_gradient_pct": 123.69579844280878,
   "suppressed_location_m": [
    627.0,
    629.0
   ]
  },
  {
   "window_m": 3.0,
   "max_gradient_pct": 31.770136702030054,
   "diagnostic": true,
   "flags": [
    "structure_excluded",
    "texture_excluded",
    "texture_excluded"
   ],
   "start_distance_m": 196.0,
   "end_distance_m": 199.0,
   "start_elevation_m": 119.83069851664375,
   "end_elevation_m": 120.78380261770465,
   "min_gradient_pct": -32.67178592127967,
   "suppressed_max_gradient_pct": 102.93574694312706,
   "suppressed_location_m": [
    626.0,
    629.0
   ]
  },
  {
   "window_m": 5.0,
   "max_gradient_pct": 26.444150305646588,
   "diagnostic": false,
   "flags": [
    "structure_excluded",
    "no_bench_excluded",
    "texture_excluded",
    "texture_excluded"
   ],
   "start_distance_m": 194.0,
   "end_distance_m": 199.0,
   "start_elevation_m": 119.46159510242232,
   "end_elevation_m": 120.78380261770465,
   "min_gradient_pct": -24.576237947451887,
   "suppressed_max_gradient_pct": 71.70111288273688,
   "suppressed_location_m": [
    624.0,
    629.0
   ]
  },
  {
   "window_m": 10.0,
   "max_gradient_pct": 19.640315383388725,
   "diagnostic": false,
   "flags": [
    "structure_excluded",
    "no_bench_excluded",
    "texture_excluded",
    "texture_excluded"
   ],
   "start_distance_m": 190.0,
   "end_distance_m": 200.0,
   "start_elevation_m": 118.91428206601402,
   "end_elevation_m": 120.8783136043529,
   "min_gradient_pct": -13.62188224930577,
   "suppressed_max_gradient_pct": 40.677043488794595,
   "suppressed_location_m": [
    619.0,
    629.0
   ]
  },
  {
   "window_m": 20.0,
   "max_gradient_pct": 16.884900687632225,
   "diagnostic": false,
   "flags": [
    "no_bench_excluded",
    "texture_excluded",
    "canopy_or_structure"
   ],
   "start_distance_m": 179.0,
   "end_distance_m": 199.0,
   "start_elevation_m": 117.4068224801782,
   "end_elevation_m": 120.78380261770465,
   "min_gradient_pct": -11.586956630406746,
   "suppressed_max_gradient_pct": 29.279341996594468,
   "suppressed_location_m": [
    730.0,
    750.0
   ]
  },
  {
   "window_m": 25.0,
   "max_gradient_pct": 16.165026118619608,
   "diagnostic": false,
   "flags": [
    "no_bench_excluded",
    "texture_excluded"
   ],
   "start_distance_m": 174.0,
   "end_distance_m": 199.0,
   "start_elevation_m": 116.74254608804975,
   "end_elevation_m": 120.78380261770465,
   "min_gradient_pct": -10.82016344327974,
   "suppressed_max_gradient_pct": 27.201841085057936,
   "suppressed_location_m": [
    730.0,
    755.0
   ]
  },
  {
   "window_m": 50.0,
   "max_gradient_pct": 13.84214464527139,
   "diagnostic": false,
   "flags": [
    "structure_excluded",
    "no_bench_excluded",
    "texture_excluded"
   ],
   "start_distance_m": 149.0,
   "end_distance_m": 199.0,
   "start_elevation_m": 113.86273029506896,
   "end_elevation_m": 120.78380261770465,
   "min_gradient_pct": -5.737411721114427,
   "suppressed_max_gradient_pct": 21.015511748579684,
   "suppressed_location_m": [
    702.0,
    752.0
   ]
  },
  {
   "window_m": 100.0,
   "max_gradient_pct": 11.889742571667114,
   "diagnostic": false,
   "flags": [
    "structure_excluded",
    "texture_excluded",
    "canopy_or_structure"
   ],
   "start_distance_m": 1366.0,
   "end_distance_m": 1466.0,
   "start_elevation_m": 199.92544600650731,
   "end_elevation_m": 211.81518857817443,
   "min_gradient_pct": -3.3277811096725713,
   "suppressed_max_gradient_pct": 14.170762301178002,
   "suppressed_location_m": [
    529.0,
    629.0
   ]
  }
 ],
 "shape": {
  "ascent_concentration": 0.385,
  "concentration_window_frac": 0.25,
  "longest_pitch_10pct_m": 92.0,
  "shape_class": "sustained"
 },
 "length_m": 3095.936535125434,
 "start_elevation_m": 99.8886101303104,
 "end_elevation_m": 300.26292101031555,
 "endpoint_gain_m": 200.37431088000517,
 "overall_gradient_pct": 6.472171138091074,
 "accumulated_ascent_m": 218.75874474916654,
 "window_maxima": {
  "max_5m": {
   "gradient_pct": 26.444150305646588,
   "start_distance_m": 194.0,
   "end_distance_m": 199.0,
   "midpoint_distance_m": 196.5,
   "start_elevation_m": 119.46159510242232,
   "end_elevation_m": 120.78380261770465,
   "start_xy": [
    287694.0848999979,
    373310.5167420292
   ],
   "end_xy": [
    287690.1911209985,
    373307.38010653027
   ]
  },
  "max_10m": {
   "gradient_pct": 19.640315383388725,
   "start_distance_m": 190.0,
   "end_distance_m": 200.0,
   "midpoint_distance_m": 195.0,
   "start_elevation_m": 118.91428206601402,
   "end_elevation_m": 120.8783136043529,
   "start_xy": [
    287696.7677171565,
    373313.4598970909
   ],
   "end_xy": [
    287689.4125786261,
    373306.7525145039
   ]
  },
  "max_20m": {
   "gradient_pct": 16.884900687632225,
   "start_distance_m": 179.0,
   "end_distance_m": 199.0,
   "midpoint_distance_m": 189.0,
   "start_elevation_m": 117.4068224801782,
   "end_elevation_m": 120.78380261770465,
   "start_xy": [
    287703.56066200655,
    373322.1118268595
   ],
   "end_xy": [
    287690.1911209985,
    373307.38010653027
   ]
  },
  "max_25m": {
   "gradient_pct": 16.165026118619608,
   "start_distance_m": 174.0,
   "end_distance_m": 199.0,
   "midpoint_distance_m": 186.5,
   "start_elevation_m": 116.74254608804975,
   "end_elevation_m": 120.78380261770465,
   "start_xy": [
    287706.6482721992,
    373326.0445947303
   ],
   "end_xy": [
    287690.1911209985,
    373307.38010653027
   ]
  },
  "max_50m": {
   "gradient_pct": 13.84214464527139,
   "start_distance_m": 149.0,
   "end_distance_m": 199.0,
   "midpoint_distance_m": 174.0,
   "start_elevation_m": 113.86273029506896,
   "end_elevation_m": 120.78380261770465,
   "start_xy": [
    287714.9854171642,
    373349.5452930246
   ],
   "end_xy": [
    287690.1911209985,
    373307.38010653027
   ]
  },
  "max_100m": {
   "gradient_pct": 11.889742571667114,
   "start_distance_m": 1366.0,
   "end_distance_m": 1466.0,
   "midpoint_distance_m": 1416.0,
   "start_elevation_m": 199.92544600650731,
   "end_elevation_m": 211.81518857817443,
   "start_xy": [
    286905.6606688043,
    372532.4743906703
   ],
   "end_xy": [
    286819.5015242552,
    372485.6777380625
   ]
  }
 },
 "window_minima": {
  "min_5m": {
   "gradient_pct": -24.576237947451887,
   "start_distance_m": 696.0,
   "end_distance_m": 701.0,
   "midpoint_distance_m": 698.5,
   "start_elevation_m": 167.76992486759337,
   "end_elevation_m": 166.54111297022078,
   "start_xy": [
    287432.5245793602,
    372927.97421527666
   ],
   "end_xy": [
    287429.2580425685,
    372924.18875225785
   ]
  },
  "min_10m": {
   "gradient_pct": -13.62188224930577,
   "start_distance_m": 783.0,
   "end_distance_m": 793.0,
   "midpoint_distance_m": 788.0,
   "start_elevation_m": 176.82696110818878,
   "end_elevation_m": 175.4647728832582,
   "start_xy": [
    287373.8188987831,
    372863.8552641109
   ],
   "end_xy": [
    287366.69343313563,
    372856.8390177112
   ]
  },
  "min_20m": {
   "gradient_pct": -11.586956630406746,
   "start_distance_m": 772.0,
   "end_distance_m": 792.0,
   "midpoint_distance_m": 782.0,
   "start_elevation_m": 177.9256767531156,
   "end_elevation_m": 175.60828542703425,
   "start_xy": [
    287381.6573350603,
    372871.57270576764
   ],
   "end_xy": [
    287367.4057365586,
    372857.54088913504
   ]
  },
  "min_25m": {
   "gradient_pct": -10.82016344327974,
   "start_distance_m": 772.0,
   "end_distance_m": 797.0,
   "midpoint_distance_m": 784.5,
   "start_elevation_m": 177.9256767531156,
   "end_elevation_m": 175.22063589229566,
   "start_xy": [
    287381.6573350603,
    372871.57270576764
   ],
   "end_xy": [
    287363.8428108289,
    372854.03296236217
   ]
  },
  "min_50m": {
   "gradient_pct": -5.737411721114427,
   "start_distance_m": 2616.0,
   "end_distance_m": 2666.0,
   "midpoint_distance_m": 2641.0,
   "start_elevation_m": 293.95021605548897,
   "end_elevation_m": 291.08151019493175,
   "start_xy": [
    286923.21230489993,
    371495.055864619
   ],
   "end_xy": [
    286918.6783050291,
    371445.26186603325
   ]
  },
  "min_100m": {
   "gradient_pct": -3.3277811096725713,
   "start_distance_m": 2607.0,
   "end_distance_m": 2707.0,
   "midpoint_distance_m": 2657.0,
   "start_elevation_m": 293.97598264394185,
   "end_elevation_m": 290.6482015342693,
   "start_xy": [
    286920.6876150233,
    371503.628264903
   ],
   "end_xy": [
    286914.9602988729,
    371404.4307986532
   ]
  }
 },
 "diagnostic_window_maxima": {
  "max_2m": {
   "gradient_pct": 36.90847189543547,
   "start_distance_m": 302.0,
   "end_distance_m": 304.0,
   "midpoint_distance_m": 303.0,
   "start_elevation_m": 128.97368226940915,
   "end_elevation_m": 129.71185170731786,
   "start_xy": [
    287632.3199415505,
    373224.37634457386
   ],
   "end_xy": [
    287631.5158386884,
    373222.5451104475
   ]
  },
  "max_3m": {
   "gradient_pct": 31.770136702030054,
   "start_distance_m": 196.0,
   "end_distance_m": 199.0,
   "midpoint_distance_m": 197.5,
   "start_elevation_m": 119.83069851664375,
   "end_elevation_m": 120.78380261770465,
   "start_xy": [
    287692.52727398043,
    373309.26222985843
   ],
   "end_xy": [
    287690.1911209985,
    373307.38010653027
   ]
  }
 },
 "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": [
    2.0,
    3.0,
    5.0,
    10.0,
    50.0,
    100.0
   ],
   "windows_unresolved": []
  },
  "no_bench_suppression": {
   "masked_fraction": 0.051,
   "windows_resited": [
    5.0,
    10.0,
    20.0,
    25.0,
    50.0
   ],
   "windows_unresolved": []
  },
  "texture_suppression": {
   "masked_fraction": 0.068,
   "windows_resited": [
    2.0,
    3.0,
    5.0,
    10.0
   ],
   "windows_unresolved": []
  },
  "texture_windows": {
   "rounds": 2,
   "windows_masked": [
    {
     "window_m": 25.0,
     "start_m": 390.0,
     "end_m": 415.0,
     "raw_pct": 21.07,
     "reason": "hump"
    },
    {
     "window_m": 20.0,
     "start_m": 408.0,
     "end_m": 428.0,
     "raw_pct": 21.49,
     "reason": "hump"
    },
    {
     "window_m": 10.0,
     "start_m": 408.0,
     "end_m": 418.0,
     "raw_pct": 27.52,
     "reason": "hump"
    },
    {
     "window_m": 5.0,
     "start_m": 410.0,
     "end_m": 415.0,
     "raw_pct": 39.85,
     "reason": "hump+short-step"
    },
    {
     "window_m": 5.0,
     "start_m": 2074.0,
     "end_m": 2079.0,
     "raw_pct": 28.89,
     "reason": "short-step"
    }
   ],
   "advisory": [],
   "unresolved": []
  },
  "overhead_obstruction": {
   "obstruction_threshold_m": 2.0,
   "obstructed_fraction": 0.485,
   "obstruction_max_height_m": 41.64,
   "flagged_windows_m": [
    20,
    100
   ]
  },
  "excluded_ranges_m": [
   [
    388.0,
    430.0
   ],
   [
    620.0,
    670.0
   ],
   [
    700.0,
    705.0
   ],
   [
    730.0,
    800.0
   ],
   [
    1150.0,
    1180.0
   ],
   [
    2072.0,
    2081.0
   ]
  ],
  "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_19_286371_20210307dtm.tif",
   "data/cache/wales/dtm_1m/wg_del_19_286372_20211221dtm.tif",
   "data/cache/wales/dtm_1m/wg_del_19_286373_20211221dtm.tif",
   "data/cache/wales/dtm_1m/wg_del_19_287371_20210307dtm.tif",
   "data/cache/wales/dtm_1m/wg_del_19_287372_20211221dtm.tif",
   "data/cache/wales/dtm_1m/wg_del_19_287373_20211221dtm.tif"
  ],
  "calculated_at": "2026-09-12T00:09:04+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-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_19_286371_20210307dtm.tif",
   "wg_del_19_286372_20211221dtm.tif",
   "wg_del_19_286373_20211221dtm.tif",
   "wg_del_19_287371_20210307dtm.tif",
   "wg_del_19_287372_20211221dtm.tif",
   "wg_del_19_287373_20211221dtm.tif"
  ],
  "elevation_capture_dates": [
   "07-03-2021",
   "21-12-2021"
  ],
  "climb_origin": "discovered",
  "license": "ODbL-1.0",
  "license_url": "https://howsteep.org/licensing"
 },
 "area": {
  "place": "Dolwen",
  "county": "Conwy - Conwy"
 }
}