{
 "ocl_version": "0.1.0",
 "name": "Discovered lane (50.6000, -4.3001)",
 "slug": "discovered-lane-50-6000-4-3001",
 "confidence": "B",
 "reported_claims": [],
 "ladder": [
  {
   "window_m": 2.0,
   "max_gradient_pct": 34.440610701994245,
   "diagnostic": true,
   "flags": [
    "texture_excluded",
    "texture_excluded"
   ],
   "start_distance_m": 223.0,
   "end_distance_m": 225.0,
   "start_elevation_m": 62.80540561915579,
   "end_elevation_m": 63.49421783319568,
   "min_gradient_pct": -19.352111492278823,
   "suppressed_max_gradient_pct": 48.39216585317061,
   "suppressed_location_m": [
    334.0,
    336.0
   ]
  },
  {
   "window_m": 3.0,
   "max_gradient_pct": 30.289873765111725,
   "diagnostic": true,
   "flags": [
    "texture_excluded",
    "texture_excluded"
   ],
   "start_distance_m": 222.0,
   "end_distance_m": 225.0,
   "start_elevation_m": 62.585521620242325,
   "end_elevation_m": 63.49421783319568,
   "min_gradient_pct": -16.264567251110407,
   "suppressed_max_gradient_pct": 43.38243833219148,
   "suppressed_location_m": [
    333.0,
    336.0
   ]
  },
  {
   "window_m": 5.0,
   "max_gradient_pct": 24.69185420108431,
   "diagnostic": false,
   "flags": [
    "texture_excluded",
    "texture_excluded",
    "canopy_or_structure"
   ],
   "start_distance_m": 385.0,
   "end_distance_m": 390.0,
   "start_elevation_m": 85.3149131275398,
   "end_elevation_m": 86.54950583759401,
   "min_gradient_pct": -11.752306856442374,
   "suppressed_max_gradient_pct": 40.335661840932175,
   "suppressed_location_m": [
    331.0,
    336.0
   ]
  },
  {
   "window_m": 10.0,
   "max_gradient_pct": 23.9691298317193,
   "diagnostic": false,
   "flags": [
    "texture_excluded",
    "texture_excluded"
   ],
   "start_distance_m": 381.0,
   "end_distance_m": 391.0,
   "start_elevation_m": 84.37818305072797,
   "end_elevation_m": 86.7750960338999,
   "min_gradient_pct": -2.6675900594453594,
   "suppressed_max_gradient_pct": 34.15693325842483,
   "suppressed_location_m": [
    327.0,
    337.0
   ]
  },
  {
   "window_m": 20.0,
   "max_gradient_pct": 19.93943828717292,
   "diagnostic": false,
   "flags": [
    "texture_excluded",
    "texture_excluded"
   ],
   "start_distance_m": 379.0,
   "end_distance_m": 399.0,
   "start_elevation_m": 84.02998062534584,
   "end_elevation_m": 88.01786828278043,
   "min_gradient_pct": 1.286334611980564,
   "suppressed_max_gradient_pct": 25.788241648855035,
   "suppressed_location_m": [
    317.0,
    337.0
   ]
  },
  {
   "window_m": 25.0,
   "max_gradient_pct": 18.615376436888994,
   "diagnostic": false,
   "flags": [
    "texture_excluded",
    "texture_excluded"
   ],
   "start_distance_m": 368.0,
   "end_distance_m": 393.0,
   "start_elevation_m": 82.54757614232611,
   "end_elevation_m": 87.20142025154836,
   "min_gradient_pct": 1.4450757816844089,
   "suppressed_max_gradient_pct": 24.19572900316899,
   "suppressed_location_m": [
    312.0,
    337.0
   ]
  },
  {
   "window_m": 50.0,
   "max_gradient_pct": 16.816317998640045,
   "diagnostic": false,
   "flags": [
    "texture_excluded"
   ],
   "start_distance_m": 345.0,
   "end_distance_m": 395.0,
   "start_elevation_m": 79.03310608973038,
   "end_elevation_m": 87.4412650890504,
   "min_gradient_pct": 2.1450852144031956,
   "suppressed_max_gradient_pct": 20.41732638034398,
   "suppressed_location_m": [
    287.0,
    337.0
   ]
  },
  {
   "window_m": 100.0,
   "max_gradient_pct": 14.250327595348127,
   "diagnostic": false,
   "flags": [
    "texture_excluded"
   ],
   "start_distance_m": 756.0,
   "end_distance_m": 856.0,
   "start_elevation_m": 128.77299916309,
   "end_elevation_m": 143.02332675843812,
   "min_gradient_pct": 3.3816757416654752,
   "suppressed_max_gradient_pct": 16.78228705270965,
   "suppressed_location_m": [
    293.0,
    393.0
   ]
  }
 ],
 "shape": {
  "ascent_concentration": 0.342,
  "concentration_window_frac": 0.25,
  "longest_pitch_10pct_m": 321.0,
  "shape_class": "sustained"
 },
 "length_m": 1407.7410333030589,
 "start_elevation_m": 39.16473219372712,
 "end_elevation_m": 175.624541716919,
 "endpoint_gain_m": 136.4598095231919,
 "overall_gradient_pct": 9.693530720135994,
 "accumulated_ascent_m": 139.1585416526404,
 "window_maxima": {
  "max_5m": {
   "gradient_pct": 24.69185420108431,
   "start_distance_m": 385.0,
   "end_distance_m": 390.0,
   "midpoint_distance_m": 387.5,
   "start_elevation_m": 85.3149131275398,
   "end_elevation_m": 86.54950583759401,
   "start_xy": [
    237187.32301789607,
    80435.83296299976
   ],
   "end_xy": [
    237192.31400980923,
    80436.13296251358
   ]
  },
  "max_10m": {
   "gradient_pct": 23.9691298317193,
   "start_distance_m": 381.0,
   "end_distance_m": 391.0,
   "midpoint_distance_m": 386.0,
   "start_elevation_m": 84.37818305072797,
   "end_elevation_m": 86.7750960338999,
   "start_xy": [
    237183.3302236456,
    80435.59297536948
   ],
   "end_xy": [
    237193.31220747196,
    80436.19297439711
   ]
  },
  "max_20m": {
   "gradient_pct": 19.93943828717292,
   "start_distance_m": 379.0,
   "end_distance_m": 399.0,
   "midpoint_distance_m": 389.0,
   "start_elevation_m": 84.02998062534584,
   "end_elevation_m": 88.01786828278043,
   "start_xy": [
    237181.33382478118,
    80435.47301049736
   ],
   "end_xy": [
    237201.29773203243,
    80436.67400492687
   ]
  },
  "max_25m": {
   "gradient_pct": 18.615376436888994,
   "start_distance_m": 368.0,
   "end_distance_m": 393.0,
   "midpoint_distance_m": 380.5,
   "start_elevation_m": 82.54757614232611,
   "end_elevation_m": 87.20142025154836,
   "start_xy": [
    237170.3536432315,
    80434.81300059508
   ],
   "end_xy": [
    237195.30860279736,
    80436.31299816417
   ]
  },
  "max_50m": {
   "gradient_pct": 16.816317998640045,
   "start_distance_m": 345.0,
   "end_distance_m": 395.0,
   "midpoint_distance_m": 370.0,
   "start_elevation_m": 79.03310608973038,
   "end_elevation_m": 87.4412650890504,
   "start_xy": [
    237147.3951429918,
    80433.43197052054
   ],
   "end_xy": [
    237197.30500172242,
    80436.43296202741
   ]
  },
  "max_100m": {
   "gradient_pct": 14.250327595348127,
   "start_distance_m": 756.0,
   "end_distance_m": 856.0,
   "midpoint_distance_m": 806.0,
   "start_elevation_m": 128.77299916309,
   "end_elevation_m": 143.02332675843812,
   "start_xy": [
    237347.77541906413,
    80201.47942714825
   ],
   "end_xy": [
    237442.74669424238,
    80170.84753101395
   ]
  }
 },
 "window_minima": {
  "min_5m": {
   "gradient_pct": -11.752306856442374,
   "start_distance_m": 337.0,
   "end_distance_m": 342.0,
   "midpoint_distance_m": 339.5,
   "start_elevation_m": 79.62136061949579,
   "end_elevation_m": 79.03374527667367,
   "start_xy": [
    237139.40955449088,
    80432.95199525998
   ],
   "end_xy": [
    237144.40054640404,
    80433.25199477379
   ]
  },
  "min_10m": {
   "gradient_pct": -2.6675900594453594,
   "start_distance_m": 428.0,
   "end_distance_m": 438.0,
   "midpoint_distance_m": 433.0,
   "start_elevation_m": 91.37342425508967,
   "end_elevation_m": 91.10666524914514,
   "start_xy": [
    237229.99516898108,
    80432.883378649
   ],
   "end_xy": [
    237239.88037146654,
    80431.37249788316
   ]
  },
  "min_20m": {
   "gradient_pct": 1.286334611980564,
   "start_distance_m": 425.0,
   "end_distance_m": 445.0,
   "midpoint_distance_m": 435.0,
   "start_elevation_m": 91.2484969895793,
   "end_elevation_m": 91.50576391197541,
   "start_xy": [
    237227.02972831493,
    80433.33742641308
   ],
   "end_xy": [
    237246.7999415492,
    80430.31441337317
   ]
  },
  "min_25m": {
   "gradient_pct": 1.4450757816844089,
   "start_distance_m": 1116.0,
   "end_distance_m": 1141.0,
   "midpoint_distance_m": 1128.5,
   "start_elevation_m": 162.70332213869378,
   "end_elevation_m": 163.06459108411488,
   "start_xy": [
    237694.9979159447,
    80112.17672168111
   ],
   "end_xy": [
    237719.95574187848,
    80110.86039677508
   ]
  },
  "min_50m": {
   "gradient_pct": 2.1450852144031956,
   "start_distance_m": 1108.0,
   "end_distance_m": 1158.0,
   "midpoint_distance_m": 1133.0,
   "start_elevation_m": 162.47443022079725,
   "end_elevation_m": 163.54697282799884,
   "start_xy": [
    237687.0220450884,
    80112.60569058308
   ],
   "end_xy": [
    237736.91147663683,
    80109.63441592993
   ]
  },
  "min_100m": {
   "gradient_pct": 3.3816757416654752,
   "start_distance_m": 1093.0,
   "end_distance_m": 1193.0,
   "midpoint_distance_m": 1143.0,
   "start_elevation_m": 161.96187926412856,
   "end_elevation_m": 165.34355500579403,
   "start_xy": [
    237672.2246518576,
    80115.06274553282
   ],
   "end_xy": [
    237771.82041617404,
    80107.11135274095
   ]
  }
 },
 "diagnostic_window_maxima": {
  "max_2m": {
   "gradient_pct": 34.440610701994245,
   "start_distance_m": 223.0,
   "end_distance_m": 225.0,
   "midpoint_distance_m": 224.0,
   "start_elevation_m": 62.80540561915579,
   "end_elevation_m": 63.49421783319568,
   "start_xy": [
    237044.84365104305,
    80369.79066518383
   ],
   "end_xy": [
    237046.33277233565,
    80371.12577408632
   ]
  },
  "max_3m": {
   "gradient_pct": 30.289873765111725,
   "start_distance_m": 222.0,
   "end_distance_m": 225.0,
   "midpoint_distance_m": 223.5,
   "start_elevation_m": 62.585521620242325,
   "end_elevation_m": 63.49421783319568,
   "start_xy": [
    237044.09863123362,
    80369.12362286284
   ],
   "end_xy": [
    237046.33277233565,
    80371.12577408632
   ]
  }
 },
 "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": [],
   "windows_unresolved": []
  },
  "texture_suppression": {
   "masked_fraction": 0.045,
   "windows_resited": [
    2.0,
    3.0,
    5.0,
    10.0,
    20.0,
    25.0
   ],
   "windows_unresolved": []
  },
  "texture_windows": {
   "rounds": 2,
   "windows_masked": [
    {
     "window_m": 25.0,
     "start_m": 312.0,
     "end_m": 337.0,
     "raw_pct": 24.2,
     "reason": "hump"
    },
    {
     "window_m": 20.0,
     "start_m": 317.0,
     "end_m": 337.0,
     "raw_pct": 25.79,
     "reason": "hump"
    },
    {
     "window_m": 10.0,
     "start_m": 327.0,
     "end_m": 337.0,
     "raw_pct": 34.16,
     "reason": "hump"
    },
    {
     "window_m": 5.0,
     "start_m": 331.0,
     "end_m": 336.0,
     "raw_pct": 40.34,
     "reason": "hump+short-step"
    },
    {
     "window_m": 25.0,
     "start_m": 0.0,
     "end_m": 25.0,
     "raw_pct": 21.71,
     "reason": "staircase+edge-step+hump"
    },
    {
     "window_m": 20.0,
     "start_m": 4.0,
     "end_m": 24.0,
     "raw_pct": 20.46,
     "reason": "edge-step+hump"
    },
    {
     "window_m": 10.0,
     "start_m": 15.0,
     "end_m": 25.0,
     "raw_pct": 30.33,
     "reason": "hump"
    },
    {
     "window_m": 5.0,
     "start_m": 20.0,
     "end_m": 25.0,
     "raw_pct": 36.54,
     "reason": "hump"
    }
   ],
   "advisory": [],
   "unresolved": []
  },
  "overhead_obstruction": {
   "obstruction_threshold_m": 2.0,
   "obstructed_fraction": 0.046,
   "obstruction_max_height_m": 13.35,
   "flagged_windows_m": [
    5
   ]
  },
  "excluded_ranges_m": [
   [
    0.0,
    27.0
   ],
   [
    203.0,
    208.0
   ],
   [
    310.0,
    339.0
   ]
  ],
  "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/england/bulk_dtm_1m/SX3580.tif"
  ],
  "calculated_at": "2026-09-12T01:37:47+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-260912",
  "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": [
   "SX3580.tif"
  ],
  "climb_origin": "discovered",
  "license": "ODbL-1.0",
  "license_url": "https://howsteep.org/licensing"
 },
 "area": {
  "place": "Felldownhead",
  "county": "Devon"
 }
}