{
 "ocl_version": "0.1.0",
 "name": "Discovered lane (54.2037, -1.9861)",
 "slug": "discovered-lane-54-2037-1-9861",
 "confidence": "B",
 "reported_claims": [],
 "ladder": [
  {
   "window_m": 2.0,
   "max_gradient_pct": 27.023883317497166,
   "diagnostic": true,
   "flags": [
    "structure_excluded",
    "texture_excluded",
    "texture_excluded"
   ],
   "start_distance_m": 45.0,
   "end_distance_m": 47.0,
   "start_elevation_m": 306.2553206448015,
   "end_elevation_m": 306.79579831115143,
   "min_gradient_pct": -26.437108910897678,
   "suppressed_max_gradient_pct": 57.28599568612651,
   "suppressed_location_m": [
    69.0,
    71.0
   ]
  },
  {
   "window_m": 3.0,
   "max_gradient_pct": 25.44273486646868,
   "diagnostic": true,
   "flags": [
    "structure_excluded",
    "texture_excluded",
    "texture_excluded"
   ],
   "start_distance_m": 45.0,
   "end_distance_m": 48.0,
   "start_elevation_m": 306.2553206448015,
   "end_elevation_m": 307.01860269079555,
   "min_gradient_pct": -21.870520997337433,
   "suppressed_max_gradient_pct": 40.77649988927495,
   "suppressed_location_m": [
    69.0,
    72.0
   ]
  },
  {
   "window_m": 5.0,
   "max_gradient_pct": 19.904162988808594,
   "diagnostic": false,
   "flags": [
    "texture_excluded",
    "texture_excluded"
   ],
   "start_distance_m": 44.0,
   "end_distance_m": 49.0,
   "start_elevation_m": 306.18570803633617,
   "end_elevation_m": 307.1809161857766,
   "min_gradient_pct": -14.548977552205997,
   "suppressed_max_gradient_pct": 33.38994290584537,
   "suppressed_location_m": [
    105.0,
    110.0
   ]
  },
  {
   "window_m": 10.0,
   "max_gradient_pct": 19.698677811079506,
   "diagnostic": false,
   "flags": [
    "texture_excluded"
   ],
   "start_distance_m": 202.0,
   "end_distance_m": 212.0,
   "start_elevation_m": 325.2000571072506,
   "end_elevation_m": 327.16992488835854,
   "min_gradient_pct": -2.6739576325923053,
   "suppressed_max_gradient_pct": 24.706825320647567,
   "suppressed_location_m": [
    103.0,
    113.0
   ]
  },
  {
   "window_m": 20.0,
   "max_gradient_pct": 18.96420683575002,
   "diagnostic": false,
   "flags": [
    "texture_excluded"
   ],
   "start_distance_m": 200.0,
   "end_distance_m": 220.0,
   "start_elevation_m": 324.83461495135214,
   "end_elevation_m": 328.62745631850214,
   "min_gradient_pct": -0.936234216609364,
   "suppressed_max_gradient_pct": 20.709565734674698,
   "suppressed_location_m": [
    106.0,
    126.0
   ]
  },
  {
   "window_m": 25.0,
   "max_gradient_pct": 18.42060878899065,
   "diagnostic": false,
   "flags": [
    "texture_excluded"
   ],
   "start_distance_m": 195.0,
   "end_distance_m": 220.0,
   "start_elevation_m": 324.0223041212545,
   "end_elevation_m": 328.62745631850214,
   "min_gradient_pct": -0.46733823448698786,
   "suppressed_max_gradient_pct": 20.05420547079143,
   "suppressed_location_m": [
    103.0,
    128.0
   ]
  },
  {
   "window_m": 50.0,
   "max_gradient_pct": 17.81343869524119,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 170.0,
   "end_distance_m": 220.0,
   "start_elevation_m": 319.72073697088155,
   "end_elevation_m": 328.62745631850214,
   "min_gradient_pct": 0.49724600642821315
  },
  {
   "window_m": 100.0,
   "max_gradient_pct": 15.647735654346036,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 150.0,
   "end_distance_m": 250.0,
   "start_elevation_m": 316.99607926238394,
   "end_elevation_m": 332.64381491673,
   "min_gradient_pct": 6.576879780416732
  }
 ],
 "shape": {
  "ascent_concentration": 0.351,
  "concentration_window_frac": 0.25,
  "longest_pitch_10pct_m": 125.0,
  "shape_class": "sustained"
 },
 "length_m": 400.6896213679475,
 "start_elevation_m": 301.90577310345424,
 "end_elevation_m": 343.853614758314,
 "endpoint_gain_m": 41.94784165485976,
 "overall_gradient_pct": 10.468911451125324,
 "accumulated_ascent_m": 44.587025104833174,
 "window_maxima": {
  "max_5m": {
   "gradient_pct": 19.904162988808594,
   "start_distance_m": 44.0,
   "end_distance_m": 49.0,
   "midpoint_distance_m": 46.5,
   "start_elevation_m": 306.18570803633617,
   "end_elevation_m": 307.1809161857766,
   "start_xy": [
    401313.23636291246,
    478704.97347797564
   ],
   "end_xy": [
    401308.2559337894,
    478705.4154275367
   ]
  },
  "max_10m": {
   "gradient_pct": 19.698677811079506,
   "start_distance_m": 202.0,
   "end_distance_m": 212.0,
   "midpoint_distance_m": 207.0,
   "start_elevation_m": 325.2000571072506,
   "end_elevation_m": 327.16992488835854,
   "start_xy": [
    401157.1378837502,
    478683.4763083026
   ],
   "end_xy": [
    401147.26182824775,
    478681.9194232434
   ]
  },
  "max_20m": {
   "gradient_pct": 18.96420683575002,
   "start_distance_m": 200.0,
   "end_distance_m": 220.0,
   "midpoint_distance_m": 210.0,
   "start_elevation_m": 324.83461495135214,
   "end_elevation_m": 328.62745631850214,
   "start_xy": [
    401159.1160184981,
    478683.7712353263
   ],
   "end_xy": [
    401139.44020414515,
    478680.2394840026
   ]
  },
  "max_25m": {
   "gradient_pct": 18.42060878899065,
   "start_distance_m": 195.0,
   "end_distance_m": 220.0,
   "midpoint_distance_m": 207.5,
   "start_elevation_m": 324.0223041212545,
   "end_elevation_m": 328.62745631850214,
   "start_xy": [
    401164.0615267322,
    478684.50740387227
   ],
   "end_xy": [
    401139.44020414515,
    478680.2394840026
   ]
  },
  "max_50m": {
   "gradient_pct": 17.81343869524119,
   "start_distance_m": 170.0,
   "end_distance_m": 220.0,
   "midpoint_distance_m": 195.0,
   "start_elevation_m": 319.72073697088155,
   "end_elevation_m": 328.62745631850214,
   "start_xy": [
    401188.78890904115,
    478688.1893120617
   ],
   "end_xy": [
    401139.44020414515,
    478680.2394840026
   ]
  },
  "max_100m": {
   "gradient_pct": 15.647735654346036,
   "start_distance_m": 150.0,
   "end_distance_m": 250.0,
   "midpoint_distance_m": 200.0,
   "start_elevation_m": 316.99607926238394,
   "end_elevation_m": 332.64381491673,
   "start_xy": [
    401208.57089355966,
    478691.13430976064
   ],
   "end_xy": [
    401109.87161352,
    478675.7990738417
   ]
  }
 },
 "window_minima": {
  "min_5m": {
   "gradient_pct": -14.548977552205997,
   "start_distance_m": 64.0,
   "end_distance_m": 69.0,
   "midpoint_distance_m": 66.5,
   "start_elevation_m": 308.24805053671616,
   "end_elevation_m": 307.52060165910586,
   "start_xy": [
    401293.3556294967,
    478705.5333232334
   ],
   "end_xy": [
    401288.4275489012,
    478704.6883253188
   ]
  },
  "min_10m": {
   "gradient_pct": -2.6739576325923053,
   "start_distance_m": 352.0,
   "end_distance_m": 362.0,
   "midpoint_distance_m": 357.0,
   "start_elevation_m": 343.4803241602764,
   "end_elevation_m": 343.21292839701715,
   "start_xy": [
    401009.0257019074,
    478663.7719465303
   ],
   "end_xy": [
    400999.9540859705,
    478659.5641248
   ]
  },
  "min_20m": {
   "gradient_pct": -0.936234216609364,
   "start_distance_m": 349.0,
   "end_distance_m": 369.0,
   "midpoint_distance_m": 359.0,
   "start_elevation_m": 343.53223627012176,
   "end_elevation_m": 343.3449894267999,
   "start_xy": [
    401011.98579339706,
    478664.1993158427
   ],
   "end_xy": [
    400994.10842728615,
    478655.86497889884
   ]
  },
  "min_25m": {
   "gradient_pct": -0.46733823448698786,
   "start_distance_m": 349.0,
   "end_distance_m": 374.0,
   "midpoint_distance_m": 361.5,
   "start_elevation_m": 343.53223627012176,
   "end_elevation_m": 343.4154017115,
   "start_xy": [
    401011.98579339706,
    478664.1993158427
   ],
   "end_xy": [
    400990.5445090908,
    478652.35805944144
   ]
  },
  "min_50m": {
   "gradient_pct": 0.49724600642821315,
   "start_distance_m": 348.0,
   "end_distance_m": 398.0,
   "midpoint_distance_m": 373.0,
   "start_elevation_m": 343.4786238466372,
   "end_elevation_m": 343.7272468498513,
   "start_xy": [
    401012.98127807264,
    478664.29423760495
   ],
   "end_xy": [
    400973.4365092154,
    478635.5260595641
   ]
  },
  "min_100m": {
   "gradient_pct": 6.576879780416732,
   "start_distance_m": 300.0,
   "end_distance_m": 400.0,
   "midpoint_distance_m": 350.0,
   "start_elevation_m": 337.33055448929605,
   "end_elevation_m": 343.9074342697128,
   "start_xy": [
    401060.76721453445,
    478668.8223448907
   ],
   "end_xy": [
    400972.01077173406,
    478634.1234647792
   ]
  }
 },
 "diagnostic_window_maxima": {
  "max_2m": {
   "gradient_pct": 27.023883317497166,
   "start_distance_m": 45.0,
   "end_distance_m": 47.0,
   "midpoint_distance_m": 46.0,
   "start_elevation_m": 306.2553206448015,
   "end_elevation_m": 306.79579831115143,
   "start_xy": [
    401312.24025087274,
    478705.0615729642
   ],
   "end_xy": [
    401310.2480917918,
    478705.2384944056
   ]
  },
  "max_3m": {
   "gradient_pct": 25.44273486646868,
   "start_distance_m": 45.0,
   "end_distance_m": 48.0,
   "midpoint_distance_m": 46.5,
   "start_elevation_m": 306.2553206448015,
   "end_elevation_m": 307.01860269079555,
   "start_xy": [
    401312.24025087274,
    478705.0615729642
   ],
   "end_xy": [
    401309.25197260553,
    478705.32650847203
   ]
  }
 },
 "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": 0.015,
   "windows_resited": [
    2.0,
    3.0
   ],
   "windows_unresolved": []
  },
  "texture_suppression": {
   "masked_fraction": 0.115,
   "windows_resited": [
    2.0,
    3.0,
    5.0
   ],
   "windows_unresolved": []
  },
  "texture_windows": {
   "rounds": 2,
   "windows_masked": [
    {
     "window_m": 25.0,
     "start_m": 103.0,
     "end_m": 128.0,
     "raw_pct": 20.05,
     "reason": "hump"
    },
    {
     "window_m": 20.0,
     "start_m": 106.0,
     "end_m": 126.0,
     "raw_pct": 20.71,
     "reason": "staircase+hump"
    },
    {
     "window_m": 5.0,
     "start_m": 105.0,
     "end_m": 110.0,
     "raw_pct": 33.39,
     "reason": "short-step"
    },
    {
     "window_m": 5.0,
     "start_m": 26.0,
     "end_m": 31.0,
     "raw_pct": 26.47,
     "reason": "short-step"
    }
   ],
   "advisory": [],
   "unresolved": []
  },
  "overhead_obstruction": {
   "obstruction_threshold_m": 2.0,
   "obstructed_fraction": 0.025,
   "obstruction_max_height_m": 3.84,
   "flagged_windows_m": []
  },
  "excluded_ranges_m": [
   [
    24.0,
    33.0
   ],
   [
    67.0,
    72.0
   ],
   [
    101.0,
    130.0
   ]
  ],
  "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/SE0075.tif"
  ],
  "calculated_at": "2026-09-11T23:29:59+00:00",
  "road_source": "OpenStreetMap (local PBF extract)",
  "road_attribution": "\u00a9 OpenStreetMap contributors, ODbL",
  "osm_pbf_path": "output/texture-uk-england/batch-england-rchunk05.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": [
   "SE0075.tif"
  ],
  "climb_origin": "discovered",
  "license": "ODbL-1.0",
  "license_url": "https://howsteep.org/licensing"
 },
 "area": {
  "place": "Woodale",
  "county": "North Yorkshire"
 }
}