{
 "ocl_version": "0.1.0",
 "name": "Beadon Lane",
 "slug": "beadon-lane",
 "confidence": "B",
 "reported_claims": [],
 "ladder": [
  {
   "window_m": 2.0,
   "max_gradient_pct": 33.965629445059164,
   "diagnostic": true,
   "flags": [
    "structure_excluded",
    "texture_excluded"
   ],
   "start_distance_m": 918.0,
   "end_distance_m": 920.0,
   "start_elevation_m": 221.98724862059416,
   "end_elevation_m": 222.66656120949534,
   "min_gradient_pct": -28.109460897985628,
   "suppressed_max_gradient_pct": 47.59531532594252,
   "suppressed_location_m": [
    293.0,
    295.0
   ]
  },
  {
   "window_m": 3.0,
   "max_gradient_pct": 25.14109741738461,
   "diagnostic": true,
   "flags": [
    "texture_excluded"
   ],
   "start_distance_m": 299.0,
   "end_distance_m": 302.0,
   "start_elevation_m": 176.5164336184867,
   "end_elevation_m": 177.27066654100824,
   "min_gradient_pct": -20.956247305308768,
   "suppressed_max_gradient_pct": 33.62078046222242,
   "suppressed_location_m": [
    687.0,
    690.0
   ]
  },
  {
   "window_m": 5.0,
   "max_gradient_pct": 22.432662795479246,
   "diagnostic": false,
   "flags": [
    "texture_excluded",
    "texture_excluded",
    "canopy_or_structure"
   ],
   "start_distance_m": 474.0,
   "end_distance_m": 479.0,
   "start_elevation_m": 194.516664607063,
   "end_elevation_m": 195.63829774683697,
   "min_gradient_pct": -16.71183716380142,
   "suppressed_max_gradient_pct": 32.57282145029308,
   "suppressed_location_m": [
    159.0,
    164.0
   ]
  },
  {
   "window_m": 10.0,
   "max_gradient_pct": 18.951490069972294,
   "diagnostic": false,
   "flags": [
    "texture_excluded",
    "texture_excluded"
   ],
   "start_distance_m": 389.0,
   "end_distance_m": 399.0,
   "start_elevation_m": 185.91167377302125,
   "end_elevation_m": 187.80682278001848,
   "min_gradient_pct": -10.104608864368174,
   "suppressed_max_gradient_pct": 30.90924944958914,
   "suppressed_location_m": [
    159.0,
    169.0
   ]
  },
  {
   "window_m": 20.0,
   "max_gradient_pct": 15.77686153139851,
   "diagnostic": false,
   "flags": [
    "texture_excluded",
    "texture_excluded"
   ],
   "start_distance_m": 382.0,
   "end_distance_m": 402.0,
   "start_elevation_m": 185.05126144584946,
   "end_elevation_m": 188.20663375212916,
   "min_gradient_pct": -8.951547438125544,
   "suppressed_max_gradient_pct": 26.60915768261077,
   "suppressed_location_m": [
    151.0,
    171.0
   ]
  },
  {
   "window_m": 25.0,
   "max_gradient_pct": 13.87596566068089,
   "diagnostic": false,
   "flags": [
    "texture_excluded",
    "texture_excluded"
   ],
   "start_distance_m": 382.0,
   "end_distance_m": 407.0,
   "start_elevation_m": 185.05126144584946,
   "end_elevation_m": 188.52025286101969,
   "min_gradient_pct": -8.244291396990661,
   "suppressed_max_gradient_pct": 23.890957812214765,
   "suppressed_location_m": [
    146.0,
    171.0
   ]
  },
  {
   "window_m": 50.0,
   "max_gradient_pct": 12.503291865217761,
   "diagnostic": false,
   "flags": [
    "texture_excluded",
    "texture_excluded"
   ],
   "start_distance_m": 1058.0,
   "end_distance_m": 1108.0,
   "start_elevation_m": 233.90108818715026,
   "end_elevation_m": 240.15273411975915,
   "min_gradient_pct": -5.650024109562821,
   "suppressed_max_gradient_pct": 17.463268076275824,
   "suppressed_location_m": [
    151.0,
    201.0
   ]
  },
  {
   "window_m": 100.0,
   "max_gradient_pct": 11.033295681459265,
   "diagnostic": false,
   "flags": [
    "texture_excluded",
    "texture_excluded"
   ],
   "start_distance_m": 1031.0,
   "end_distance_m": 1131.0,
   "start_elevation_m": 231.22154294439207,
   "end_elevation_m": 242.25483862585133,
   "min_gradient_pct": -3.388900018501488,
   "suppressed_max_gradient_pct": 12.073159772083955,
   "suppressed_location_m": [
    118.0,
    218.0
   ]
  }
 ],
 "shape": {
  "ascent_concentration": 0.34,
  "concentration_window_frac": 0.25,
  "longest_pitch_10pct_m": 69.0,
  "shape_class": "sustained"
 },
 "length_m": 1181.7849147764261,
 "start_elevation_m": 164.52377503967455,
 "end_elevation_m": 244.0313241124262,
 "endpoint_gain_m": 79.50754907275166,
 "overall_gradient_pct": 6.727751224324365,
 "accumulated_ascent_m": 90.88605325064083,
 "window_maxima": {
  "max_5m": {
   "gradient_pct": 22.432662795479246,
   "start_distance_m": 474.0,
   "end_distance_m": 479.0,
   "midpoint_distance_m": 476.5,
   "start_elevation_m": 194.516664607063,
   "end_elevation_m": 195.63829774683697,
   "start_xy": [
    281982.69195966306,
    81475.89921533983
   ],
   "end_xy": [
    281985.2999375483,
    81471.6332514776
   ]
  },
  "max_10m": {
   "gradient_pct": 18.951490069972294,
   "start_distance_m": 389.0,
   "end_distance_m": 399.0,
   "midpoint_distance_m": 394.0,
   "start_elevation_m": 185.91167377302125,
   "end_elevation_m": 187.80682278001848,
   "start_xy": [
    281938.38772326143,
    81548.43854900205
   ],
   "end_xy": [
    281943.5668720102,
    81539.88535857335
   ]
  },
  "max_20m": {
   "gradient_pct": 15.77686153139851,
   "start_distance_m": 382.0,
   "end_distance_m": 402.0,
   "midpoint_distance_m": 392.0,
   "start_elevation_m": 185.05126144584946,
   "end_elevation_m": 188.20663375212916,
   "start_xy": [
    281935.45123562415,
    81554.79253122788
   ],
   "end_xy": [
    281945.13207146496,
    81537.32603264437
   ]
  },
  "max_25m": {
   "gradient_pct": 13.87596566068089,
   "start_distance_m": 382.0,
   "end_distance_m": 407.0,
   "midpoint_distance_m": 394.5,
   "start_elevation_m": 185.05126144584946,
   "end_elevation_m": 188.52025286101969,
   "start_xy": [
    281935.45123562415,
    81554.79253122788
   ],
   "end_xy": [
    281947.7400493502,
    81533.06006878216
   ]
  },
  "max_50m": {
   "gradient_pct": 12.503291865217761,
   "start_distance_m": 1058.0,
   "end_distance_m": 1108.0,
   "midpoint_distance_m": 1083.0,
   "start_elevation_m": 233.90108818715026,
   "end_elevation_m": 240.15273411975915,
   "start_xy": [
    282261.1122679375,
    80967.09066608272
   ],
   "end_xy": [
    282278.94309120905,
    80920.83013456046
   ]
  },
  "max_100m": {
   "gradient_pct": 11.033295681459265,
   "start_distance_m": 1031.0,
   "end_distance_m": 1131.0,
   "midpoint_distance_m": 1081.0,
   "start_elevation_m": 231.22154294439207,
   "end_elevation_m": 242.25483862585133,
   "start_xy": [
    282247.4404055455,
    80990.37327670795
   ],
   "end_xy": [
    282280.67442213633,
    80897.94821015053
   ]
  }
 },
 "window_minima": {
  "min_5m": {
   "gradient_pct": -16.71183716380142,
   "start_distance_m": 288.0,
   "end_distance_m": 293.0,
   "midpoint_distance_m": 290.5,
   "start_elevation_m": 175.89813647447346,
   "end_elevation_m": 175.0625446162834,
   "start_xy": [
    281896.31366378104,
    81640.2549351052
   ],
   "end_xy": [
    281898.42568196205,
    81635.72289607207
   ]
  },
  "min_10m": {
   "gradient_pct": -10.104608864368174,
   "start_distance_m": 74.0,
   "end_distance_m": 84.0,
   "midpoint_distance_m": 79.0,
   "start_elevation_m": 163.0908385256585,
   "end_elevation_m": 162.0803776392217,
   "start_xy": [
    281787.97644643736,
    81818.06993805133
   ],
   "end_xy": [
    281796.9849906375,
    81813.72872593044
   ]
  },
  "min_20m": {
   "gradient_pct": -8.951547438125544,
   "start_distance_m": 65.0,
   "end_distance_m": 85.0,
   "midpoint_distance_m": 75.0,
   "start_elevation_m": 163.84848711130851,
   "end_elevation_m": 162.0581776236834,
   "start_xy": [
    281781.306767505,
    81823.7296480033
   ],
   "end_xy": [
    281797.8859199173,
    81813.29475999542
   ]
  },
  "min_25m": {
   "gradient_pct": -8.244291396990661,
   "start_distance_m": 65.0,
   "end_distance_m": 90.0,
   "midpoint_distance_m": 77.5,
   "start_elevation_m": 163.84848711130851,
   "end_elevation_m": 161.78741426206085,
   "start_xy": [
    281781.306767505,
    81823.7296480033
   ],
   "end_xy": [
    281802.2290869656,
    81810.83824006499
   ]
  },
  "min_50m": {
   "gradient_pct": -5.650024109562821,
   "start_distance_m": 38.0,
   "end_distance_m": 88.0,
   "midpoint_distance_m": 63.0,
   "start_elevation_m": 164.77600486651394,
   "end_elevation_m": 161.95099281173253,
   "start_xy": [
    281770.3292551225,
    81848.18244817022
   ],
   "end_xy": [
    281800.56529409497,
    81811.9481018958
   ]
  },
  "min_100m": {
   "gradient_pct": -3.388900018501488,
   "start_distance_m": 14.0,
   "end_distance_m": 114.0,
   "midpoint_distance_m": 64.0,
   "start_elevation_m": 165.18055127216485,
   "end_elevation_m": 161.79165125366336,
   "start_xy": [
    281759.313431739,
    81869.3427605849
   ],
   "end_xy": [
    281822.115564643,
    81797.42263150628
   ]
  }
 },
 "diagnostic_window_maxima": {
  "max_2m": {
   "gradient_pct": 33.965629445059164,
   "start_distance_m": 918.0,
   "end_distance_m": 920.0,
   "midpoint_distance_m": 919.0,
   "start_elevation_m": 221.98724862059416,
   "end_elevation_m": 222.66656120949534,
   "start_xy": [
    282199.5359718181,
    81091.58446062746
   ],
   "end_xy": [
    282200.0578906355,
    81089.65376109623
   ]
  },
  "max_3m": {
   "gradient_pct": 25.14109741738461,
   "start_distance_m": 299.0,
   "end_distance_m": 302.0,
   "midpoint_distance_m": 300.5,
   "start_elevation_m": 176.5164336184867,
   "end_elevation_m": 177.27066654100824,
   "start_xy": [
    281900.9607017919,
    81630.28472861307
   ],
   "end_xy": [
    281902.22782464174,
    81627.56546457336
   ]
  }
 },
 "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
   ],
   "windows_unresolved": []
  },
  "texture_suppression": {
   "masked_fraction": 0.065,
   "windows_resited": [
    2.0,
    3.0,
    5.0,
    10.0,
    20.0,
    25.0,
    50.0,
    100.0
   ],
   "windows_unresolved": []
  },
  "texture_windows": {
   "rounds": 2,
   "windows_masked": [
    {
     "window_m": 25.0,
     "start_m": 146.0,
     "end_m": 171.0,
     "raw_pct": 23.89,
     "reason": "hump"
    },
    {
     "window_m": 20.0,
     "start_m": 151.0,
     "end_m": 171.0,
     "raw_pct": 26.61,
     "reason": "hump"
    },
    {
     "window_m": 25.0,
     "start_m": 335.0,
     "end_m": 360.0,
     "raw_pct": 17.9,
     "reason": "hump"
    },
    {
     "window_m": 20.0,
     "start_m": 341.0,
     "end_m": 361.0,
     "raw_pct": 19.46,
     "reason": "hump"
    },
    {
     "window_m": 10.0,
     "start_m": 351.0,
     "end_m": 361.0,
     "raw_pct": 23.4,
     "reason": "hump"
    },
    {
     "window_m": 5.0,
     "start_m": 687.0,
     "end_m": 692.0,
     "raw_pct": 26.95,
     "reason": "short-step"
    }
   ],
   "advisory": [],
   "unresolved": []
  },
  "overhead_obstruction": {
   "obstruction_threshold_m": 2.0,
   "obstructed_fraction": 0.122,
   "obstruction_max_height_m": 27.37,
   "flagged_windows_m": [
    5
   ]
  },
  "excluded_ranges_m": [
   [
    144.0,
    173.0
   ],
   [
    292.0,
    297.0
   ],
   [
    333.0,
    363.0
   ],
   [
    685.0,
    694.0
   ]
  ],
  "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/england/bulk_dtm_1m/SX8080.tif"
  ],
  "calculated_at": "2026-09-11T23:26:55+00:00",
  "road_source": "OpenStreetMap (local PBF extract)",
  "road_attribution": "\u00a9 OpenStreetMap contributors, ODbL",
  "osm_pbf_path": "output/texture-uk-england/batch-england-rchunk01.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": [
   "SX8080.tif"
  ],
  "climb_origin": "discovered",
  "license": "ODbL-1.0",
  "license_url": "https://howsteep.org/licensing"
 },
 "area": {
  "place": "Hyner Bottom",
  "county": "Devon"
 }
}