{
 "ocl_version": "0.1.0",
 "name": "Discovered lane (50.4634, -4.5669)",
 "slug": "discovered-lane-50-4634-4-5669",
 "confidence": "U",
 "reported_claims": [],
 "ladder": [
  {
   "window_m": 2.0,
   "max_gradient_pct": 49.82488049333469,
   "diagnostic": true,
   "flags": [
    "structure_excluded"
   ],
   "start_distance_m": 502.0,
   "end_distance_m": 504.0,
   "start_elevation_m": 117.9397417566726,
   "end_elevation_m": 118.9362393665393,
   "min_gradient_pct": -25.69672361079114,
   "suppressed_max_gradient_pct": 58.66106349422964,
   "suppressed_location_m": [
    104.0,
    106.0
   ]
  },
  {
   "window_m": 3.0,
   "max_gradient_pct": 40.55376289960151,
   "diagnostic": true,
   "flags": [
    "structure_excluded"
   ],
   "start_distance_m": 502.0,
   "end_distance_m": 505.0,
   "start_elevation_m": 117.9397417566726,
   "end_elevation_m": 119.15635464366065,
   "min_gradient_pct": -21.524402200767174,
   "suppressed_max_gradient_pct": 52.16100821398726,
   "suppressed_location_m": [
    103.0,
    106.0
   ]
  },
  {
   "window_m": 5.0,
   "max_gradient_pct": 35.80675340102232,
   "diagnostic": false,
   "flags": [
    "structure_excluded",
    "texture_excluded",
    "canopy_or_structure"
   ],
   "start_distance_m": 127.0,
   "end_distance_m": 132.0,
   "start_elevation_m": 85.15356851393229,
   "end_elevation_m": 86.9439061839834,
   "min_gradient_pct": -20.358806506008875,
   "suppressed_max_gradient_pct": 45.326900531044316,
   "suppressed_location_m": [
    102.0,
    107.0
   ]
  },
  {
   "window_m": 10.0,
   "max_gradient_pct": 25.523089765055573,
   "diagnostic": false,
   "flags": [
    "texture_excluded",
    "texture_excluded",
    "texture_excluded",
    "canopy_or_structure"
   ],
   "start_distance_m": 122.0,
   "end_distance_m": 132.0,
   "start_elevation_m": 84.39159720747784,
   "end_elevation_m": 86.9439061839834,
   "min_gradient_pct": -14.534167992257352,
   "suppressed_max_gradient_pct": 34.02965880635833,
   "suppressed_location_m": [
    57.0,
    67.0
   ]
  },
  {
   "window_m": 20.0,
   "max_gradient_pct": 19.027665370176834,
   "diagnostic": false,
   "flags": [
    "texture_excluded",
    "texture_excluded",
    "texture_excluded"
   ],
   "start_distance_m": 471.0,
   "end_distance_m": 491.0,
   "start_elevation_m": 112.89538499089255,
   "end_elevation_m": 116.70091806492792,
   "min_gradient_pct": -6.480782524391344,
   "suppressed_max_gradient_pct": 26.91201834519227,
   "suppressed_location_m": [
    49.0,
    69.0
   ]
  },
  {
   "window_m": 25.0,
   "max_gradient_pct": 18.640911222908358,
   "diagnostic": false,
   "flags": [
    "texture_excluded",
    "texture_excluded",
    "texture_excluded"
   ],
   "start_distance_m": 467.0,
   "end_distance_m": 492.0,
   "start_elevation_m": 112.15745846112746,
   "end_elevation_m": 116.81768626685455,
   "min_gradient_pct": -5.02311890636912,
   "suppressed_max_gradient_pct": 26.166754691206506,
   "suppressed_location_m": [
    55.0,
    80.0
   ]
  },
  {
   "window_m": 50.0,
   "max_gradient_pct": 17.50258487248186,
   "diagnostic": false,
   "flags": [
    "structure_excluded",
    "texture_excluded"
   ],
   "start_distance_m": 456.0,
   "end_distance_m": 506.0,
   "start_elevation_m": 110.63515879590639,
   "end_elevation_m": 119.38645123214732,
   "min_gradient_pct": -2.1215959190799083,
   "suppressed_max_gradient_pct": 23.52679999788461,
   "suppressed_location_m": [
    57.0,
    107.0
   ]
  },
  {
   "window_m": 100.0,
   "max_gradient_pct": 16.075158855027013,
   "diagnostic": false,
   "flags": [
    "structure_excluded"
   ],
   "start_distance_m": 664.0,
   "end_distance_m": 764.0,
   "start_elevation_m": 131.9624942503057,
   "end_elevation_m": 148.0376531053327,
   "min_gradient_pct": -1.2895074938977444,
   "suppressed_max_gradient_pct": 18.640680430300918,
   "suppressed_location_m": [
    32.0,
    132.0
   ]
  }
 ],
 "shape": {
  "ascent_concentration": 0.316,
  "concentration_window_frac": 0.25,
  "longest_pitch_10pct_m": 138.0,
  "shape_class": "sustained"
 },
 "length_m": 1100.6372685648391,
 "start_elevation_m": 66.19761566925037,
 "end_elevation_m": 167.35355489639323,
 "endpoint_gain_m": 101.15593922714287,
 "overall_gradient_pct": 9.190669997849861,
 "accumulated_ascent_m": 111.19318131792956,
 "window_maxima": {
  "max_5m": {
   "gradient_pct": 35.80675340102232,
   "start_distance_m": 127.0,
   "end_distance_m": 132.0,
   "midpoint_distance_m": 129.5,
   "start_elevation_m": 85.15356851393229,
   "end_elevation_m": 86.9439061839834,
   "start_xy": [
    218423.07564355785,
    65561.21194703192
   ],
   "end_xy": [
    218420.5074916058,
    65565.50200428448
   ]
  },
  "max_10m": {
   "gradient_pct": 25.523089765055573,
   "start_distance_m": 122.0,
   "end_distance_m": 132.0,
   "midpoint_distance_m": 127.0,
   "start_elevation_m": 84.39159720747784,
   "end_elevation_m": 86.9439061839834,
   "start_xy": [
    218425.64435839083,
    65556.92222665499
   ],
   "end_xy": [
    218420.5074916058,
    65565.50200428448
   ]
  },
  "max_20m": {
   "gradient_pct": 19.027665370176834,
   "start_distance_m": 471.0,
   "end_distance_m": 491.0,
   "midpoint_distance_m": 481.0,
   "start_elevation_m": 112.89538499089255,
   "end_elevation_m": 116.70091806492792,
   "start_xy": [
    218281.53886891657,
    65805.74295434364
   ],
   "end_xy": [
    218261.67767099087,
    65803.39077985605
   ]
  },
  "max_25m": {
   "gradient_pct": 18.640911222908358,
   "start_distance_m": 467.0,
   "end_distance_m": 492.0,
   "midpoint_distance_m": 479.5,
   "start_elevation_m": 112.15745846112746,
   "end_elevation_m": 116.81768626685455,
   "start_xy": [
    218285.51105921928,
    65806.21380562727
   ],
   "end_xy": [
    218260.68464605248,
    65803.27287536173
   ]
  },
  "max_50m": {
   "gradient_pct": 17.50258487248186,
   "start_distance_m": 456.0,
   "end_distance_m": 506.0,
   "midpoint_distance_m": 481.0,
   "start_elevation_m": 110.63515879590639,
   "end_elevation_m": 119.38645123214732,
   "start_xy": [
    218296.43468496558,
    65807.50778151503
   ],
   "end_xy": [
    218246.7818549404,
    65801.6259526969
   ]
  },
  "max_100m": {
   "gradient_pct": 16.075158855027013,
   "start_distance_m": 664.0,
   "end_distance_m": 764.0,
   "midpoint_distance_m": 714.0,
   "start_elevation_m": 131.9624942503057,
   "end_elevation_m": 148.0376531053327,
   "start_xy": [
    218099.14933353337,
    65755.07569617499
   ],
   "end_xy": [
    218001.83679464468,
    65751.07960065895
   ]
  }
 },
 "window_minima": {
  "min_5m": {
   "gradient_pct": -20.358806506008875,
   "start_distance_m": 322.0,
   "end_distance_m": 327.0,
   "midpoint_distance_m": 324.5,
   "start_elevation_m": 96.23457686124787,
   "end_elevation_m": 95.21663653594743,
   "start_xy": [
    218405.5104817982,
    65750.33076370953
   ],
   "end_xy": [
    218404.7793190653,
    65755.2770144583
   ]
  },
  "min_10m": {
   "gradient_pct": -14.534167992257352,
   "start_distance_m": 318.0,
   "end_distance_m": 328.0,
   "midpoint_distance_m": 323.0,
   "start_elevation_m": 96.49673045182918,
   "end_elevation_m": 95.04331365260344,
   "start_xy": [
    218406.09631462506,
    65746.37389684224
   ],
   "end_xy": [
    218404.58456125142,
    65756.25029465498
   ]
  },
  "min_20m": {
   "gradient_pct": -6.480782524391344,
   "start_distance_m": 308.0,
   "end_distance_m": 328.0,
   "midpoint_distance_m": 318.0,
   "start_elevation_m": 96.33947015748171,
   "end_elevation_m": 95.04331365260344,
   "start_xy": [
    218406.8789523743,
    65736.42212503379
   ],
   "end_xy": [
    218404.58456125142,
    65756.25029465498
   ]
  },
  "min_25m": {
   "gradient_pct": -5.02311890636912,
   "start_distance_m": 303.0,
   "end_distance_m": 328.0,
   "midpoint_distance_m": 315.5,
   "start_elevation_m": 96.29909337919572,
   "end_elevation_m": 95.04331365260344,
   "start_xy": [
    218406.98880269687,
    65731.42333196003
   ],
   "end_xy": [
    218404.58456125142,
    65756.25029465498
   ]
  },
  "min_50m": {
   "gradient_pct": -2.1215959190799083,
   "start_distance_m": 223.0,
   "end_distance_m": 273.0,
   "midpoint_distance_m": 248.0,
   "start_elevation_m": 96.64224986717436,
   "end_elevation_m": 95.5814519076344,
   "start_xy": [
    218402.5336827049,
    65651.64854516007
   ],
   "end_xy": [
    218406.96286533948,
    65701.45197615858
   ]
  },
  "min_100m": {
   "gradient_pct": -1.2895074938977444,
   "start_distance_m": 228.0,
   "end_distance_m": 328.0,
   "midpoint_distance_m": 278.0,
   "start_elevation_m": 96.33282114650119,
   "end_elevation_m": 95.04331365260344,
   "start_xy": [
    218402.97671214584,
    65656.62887837789
   ],
   "end_xy": [
    218404.58456125142,
    65756.25029465498
   ]
  }
 },
 "diagnostic_window_maxima": {
  "max_2m": {
   "gradient_pct": 49.82488049333469,
   "start_distance_m": 502.0,
   "end_distance_m": 504.0,
   "midpoint_distance_m": 503.0,
   "start_elevation_m": 117.9397417566726,
   "end_elevation_m": 118.9362393665393,
   "start_xy": [
    218250.75404524474,
    65802.09680396665
   ],
   "end_xy": [
    218248.76799845631,
    65801.86096960663
   ]
  },
  "max_3m": {
   "gradient_pct": 40.55376289960151,
   "start_distance_m": 502.0,
   "end_distance_m": 505.0,
   "midpoint_distance_m": 503.5,
   "start_elevation_m": 117.9397417566726,
   "end_elevation_m": 119.15635464366065,
   "start_xy": [
    218250.75404524474,
    65802.09680396665
   ],
   "end_xy": [
    218247.77488833992,
    65801.74378532136
   ]
  }
 },
 "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": 0.011,
   "windows_resited": [
    2.0,
    3.0,
    5.0,
    50.0,
    100.0
   ],
   "windows_unresolved": []
  },
  "texture_suppression": {
   "masked_fraction": 0.101,
   "windows_resited": [
    10.0,
    20.0,
    25.0
   ],
   "windows_unresolved": []
  },
  "texture_windows": {
   "rounds": 3,
   "windows_masked": [
    {
     "window_m": 25.0,
     "start_m": 55.0,
     "end_m": 80.0,
     "raw_pct": 26.17,
     "reason": "hump"
    },
    {
     "window_m": 20.0,
     "start_m": 49.0,
     "end_m": 69.0,
     "raw_pct": 26.91,
     "reason": "hump"
    },
    {
     "window_m": 10.0,
     "start_m": 57.0,
     "end_m": 67.0,
     "raw_pct": 34.03,
     "reason": "hump"
    },
    {
     "window_m": 25.0,
     "start_m": 367.0,
     "end_m": 392.0,
     "raw_pct": 20.63,
     "reason": "hump"
    },
    {
     "window_m": 20.0,
     "start_m": 372.0,
     "end_m": 392.0,
     "raw_pct": 23.04,
     "reason": "hump"
    },
    {
     "window_m": 10.0,
     "start_m": 382.0,
     "end_m": 392.0,
     "raw_pct": 29.01,
     "reason": "hump"
    },
    {
     "window_m": 25.0,
     "start_m": 157.0,
     "end_m": 182.0,
     "raw_pct": 19.75,
     "reason": "hump"
    },
    {
     "window_m": 20.0,
     "start_m": 165.0,
     "end_m": 185.0,
     "raw_pct": 20.46,
     "reason": "hump"
    },
    {
     "window_m": 10.0,
     "start_m": 172.0,
     "end_m": 182.0,
     "raw_pct": 25.95,
     "reason": "hump"
    }
   ],
   "advisory": [],
   "unresolved": []
  },
  "overhead_obstruction": {
   "obstruction_threshold_m": 2.0,
   "obstructed_fraction": 0.074,
   "obstruction_max_height_m": 17.21,
   "flagged_windows_m": [
    5,
    10
   ]
  },
  "excluded_ranges_m": [
   [
    47.0,
    82.0
   ],
   [
    103.0,
    108.0
   ],
   [
    155.0,
    187.0
   ],
   [
    365.0,
    394.0
   ],
   [
    513.0,
    518.0
   ]
  ],
  "review": [
   "short_window_divergence"
  ],
  "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/england/bulk_dtm_1m/SX1565.tif"
  ],
  "calculated_at": "2026-09-11T23:27:52+00:00",
  "road_source": "OpenStreetMap (local PBF extract)",
  "road_attribution": "\u00a9 OpenStreetMap contributors, ODbL",
  "osm_pbf_path": "output/texture-uk-england/batch-england-rchunk00.pbf",
  "osm_snapshot": "",
  "run_id": "texture-uk-england-260911",
  "elevation_provider": "Environment Agency",
  "elevation_dataset": "EA LIDAR Composite DTM 1m (2022)",
  "elevation_licence": "Open Government Licence v3 \u2014 \u00a9 Environment Agency",
  "elevation_coverage_id": "13787b9a-26a4-4775-8523-806d13af58fc__Lidar_Composite_Elevation_DTM_1m",
  "elevation_tile_ids": [
   "SX1565.tif"
  ],
  "climb_origin": "discovered",
  "license": "ODbL-1.0",
  "license_url": "https://howsteep.org/licensing"
 },
 "area": {
  "place": "Redpost",
  "county": "Cornwall"
 }
}