{
 "ocl_version": "0.1.0",
 "name": "Goddard Lane",
 "slug": "goddard-lane",
 "confidence": "B",
 "reported_claims": [],
 "ladder": [
  {
   "window_m": 2.0,
   "max_gradient_pct": 29.10071446741682,
   "diagnostic": true,
   "flags": [
    "structure_excluded",
    "texture_excluded"
   ],
   "start_distance_m": 265.0,
   "end_distance_m": 267.0,
   "start_elevation_m": 248.9800488698458,
   "end_elevation_m": 249.56206315919414,
   "min_gradient_pct": -30.35982612686894,
   "suppressed_max_gradient_pct": 67.08152941142345,
   "suppressed_location_m": [
    207.0,
    209.0
   ]
  },
  {
   "window_m": 3.0,
   "max_gradient_pct": 27.998587652340728,
   "diagnostic": true,
   "flags": [
    "structure_excluded",
    "texture_excluded"
   ],
   "start_distance_m": 275.0,
   "end_distance_m": 278.0,
   "start_elevation_m": 249.97359644806036,
   "end_elevation_m": 250.81355407763058,
   "min_gradient_pct": -26.051685094605165,
   "suppressed_max_gradient_pct": 54.226715410259395,
   "suppressed_location_m": [
    207.0,
    210.0
   ]
  },
  {
   "window_m": 5.0,
   "max_gradient_pct": 23.372182906420562,
   "diagnostic": false,
   "flags": [
    "structure_excluded",
    "texture_excluded"
   ],
   "start_distance_m": 275.0,
   "end_distance_m": 280.0,
   "start_elevation_m": 249.97359644806036,
   "end_elevation_m": 251.1422055933814,
   "min_gradient_pct": -14.483802844898719,
   "suppressed_max_gradient_pct": 41.51953073163156,
   "suppressed_location_m": [
    206.0,
    211.0
   ]
  },
  {
   "window_m": 10.0,
   "max_gradient_pct": 17.079408966080223,
   "diagnostic": false,
   "flags": [
    "structure_excluded",
    "texture_excluded",
    "canopy_or_structure"
   ],
   "start_distance_m": 252.0,
   "end_distance_m": 262.0,
   "start_elevation_m": 247.15635768131008,
   "end_elevation_m": 248.8642985779181,
   "min_gradient_pct": -1.9538501309045841,
   "suppressed_max_gradient_pct": 27.84568851437882,
   "suppressed_location_m": [
    206.0,
    216.0
   ]
  },
  {
   "window_m": 20.0,
   "max_gradient_pct": 14.90091553348961,
   "diagnostic": false,
   "flags": [
    "texture_excluded"
   ],
   "start_distance_m": 247.0,
   "end_distance_m": 267.0,
   "start_elevation_m": 246.58188005249622,
   "end_elevation_m": 249.56206315919414,
   "min_gradient_pct": 2.225278637916972,
   "suppressed_max_gradient_pct": 22.74339410710482,
   "suppressed_location_m": [
    173.0,
    193.0
   ]
  },
  {
   "window_m": 25.0,
   "max_gradient_pct": 14.041452266935949,
   "diagnostic": false,
   "flags": [
    "texture_excluded"
   ],
   "start_distance_m": 255.0,
   "end_distance_m": 280.0,
   "start_elevation_m": 247.6318425266474,
   "end_elevation_m": 251.1422055933814,
   "min_gradient_pct": 2.1175579929896458,
   "suppressed_max_gradient_pct": 21.437468985699297,
   "suppressed_location_m": [
    168.0,
    193.0
   ]
  },
  {
   "window_m": 50.0,
   "max_gradient_pct": 13.195364824562773,
   "diagnostic": false,
   "flags": [
    "texture_excluded"
   ],
   "start_distance_m": 230.0,
   "end_distance_m": 280.0,
   "start_elevation_m": 244.5445231811,
   "end_elevation_m": 251.1422055933814,
   "min_gradient_pct": 2.5214104092946172,
   "suppressed_max_gradient_pct": 17.260504461694836,
   "suppressed_location_m": [
    144.0,
    194.0
   ]
  },
  {
   "window_m": 100.0,
   "max_gradient_pct": 10.859072881201485,
   "diagnostic": false,
   "flags": [
    "structure_excluded",
    "texture_excluded"
   ],
   "start_distance_m": 251.0,
   "end_distance_m": 351.0,
   "start_elevation_m": 247.0410481489759,
   "end_elevation_m": 257.9001210301774,
   "min_gradient_pct": 4.918038564281744,
   "suppressed_max_gradient_pct": 14.862430606650806,
   "suppressed_location_m": [
    117.0,
    217.0
   ]
  }
 ],
 "shape": {
  "ascent_concentration": 0.381,
  "concentration_window_frac": 0.25,
  "longest_pitch_10pct_m": 89.0,
  "shape_class": "sustained"
 },
 "length_m": 354.7094696300249,
 "start_elevation_m": 222.40399255151397,
 "end_elevation_m": 258.30270564403764,
 "endpoint_gain_m": 35.89871309252368,
 "overall_gradient_pct": 10.120596196647178,
 "accumulated_ascent_m": 38.24763319290781,
 "window_maxima": {
  "max_5m": {
   "gradient_pct": 23.372182906420562,
   "start_distance_m": 275.0,
   "end_distance_m": 280.0,
   "midpoint_distance_m": 277.5,
   "start_elevation_m": 249.97359644806036,
   "end_elevation_m": 251.1422055933814,
   "start_xy": [
    401431.52438458643,
    389536.6566231904
   ],
   "end_xy": [
    401433.7752392739,
    389541.1213348258
   ]
  },
  "max_10m": {
   "gradient_pct": 17.079408966080223,
   "start_distance_m": 252.0,
   "end_distance_m": 262.0,
   "midpoint_distance_m": 257.0,
   "start_elevation_m": 247.15635768131008,
   "end_elevation_m": 248.8642985779181,
   "start_xy": [
    401417.65370659187,
    389518.311127738
   ],
   "end_xy": [
    401423.6987501201,
    389526.2771439596
   ]
  },
  "max_20m": {
   "gradient_pct": 14.90091553348961,
   "start_distance_m": 247.0,
   "end_distance_m": 267.0,
   "midpoint_distance_m": 257.0,
   "start_elevation_m": 246.58188005249622,
   "end_elevation_m": 249.56206315919414,
   "start_xy": [
    401414.6308770964,
    389514.3283527249
   ],
   "end_xy": [
    401426.72156820673,
    389530.25992763665
   ]
  },
  "max_25m": {
   "gradient_pct": 14.041452266935949,
   "start_distance_m": 255.0,
   "end_distance_m": 280.0,
   "midpoint_distance_m": 267.5,
   "start_elevation_m": 247.6318425266474,
   "end_elevation_m": 251.1422055933814,
   "start_xy": [
    401419.46681987675,
    389520.70123573864
   ],
   "end_xy": [
    401433.7752392739,
    389541.1213348258
   ]
  },
  "max_50m": {
   "gradient_pct": 13.195364824562773,
   "start_distance_m": 230.0,
   "end_distance_m": 280.0,
   "midpoint_distance_m": 255.0,
   "start_elevation_m": 244.5445231811,
   "end_elevation_m": 251.1422055933814,
   "start_xy": [
    401404.2409054336,
    389500.87309509475
   ],
   "end_xy": [
    401433.7752392739,
    389541.1213348258
   ]
  },
  "max_100m": {
   "gradient_pct": 10.859072881201485,
   "start_distance_m": 251.0,
   "end_distance_m": 351.0,
   "midpoint_distance_m": 301.0,
   "start_elevation_m": 247.0410481489759,
   "end_elevation_m": 257.9001210301774,
   "start_xy": [
    401417.0486177509,
    389517.5149698011
   ],
   "end_xy": [
    401458.7255478981,
    389607.0961612409
   ]
  }
 },
 "window_minima": {
  "min_5m": {
   "gradient_pct": -14.483802844898719,
   "start_distance_m": 200.0,
   "end_distance_m": 205.0,
   "midpoint_distance_m": 202.5,
   "start_elevation_m": 241.2816516732093,
   "end_elevation_m": 240.55746153096436,
   "start_xy": [
    401385.8557490915,
    389477.1668528259
   ],
   "end_xy": [
    401388.91873222514,
    389481.1188310895
   ]
  },
  "min_10m": {
   "gradient_pct": -1.9538501309045841,
   "start_distance_m": 195.0,
   "end_distance_m": 205.0,
   "midpoint_distance_m": 200.0,
   "start_elevation_m": 240.75284654405482,
   "end_elevation_m": 240.55746153096436,
   "start_xy": [
    401382.7927659578,
    389473.2148745623
   ],
   "end_xy": [
    401388.91873222514,
    389481.1188310895
   ]
  },
  "min_20m": {
   "gradient_pct": 2.225278637916972,
   "start_distance_m": 29.0,
   "end_distance_m": 49.0,
   "midpoint_distance_m": 39.0,
   "start_elevation_m": 223.27117051673534,
   "end_elevation_m": 223.71622624431873,
   "start_xy": [
    401300.7593555234,
    389331.3894091771
   ],
   "end_xy": [
    401313.84599375754,
    389346.51243135956
   ]
  },
  "min_25m": {
   "gradient_pct": 2.1175579929896458,
   "start_distance_m": 8.0,
   "end_distance_m": 33.0,
   "midpoint_distance_m": 20.5,
   "start_elevation_m": 222.76074565293112,
   "end_elevation_m": 223.29013515117853,
   "start_xy": [
    401286.07587183226,
    389316.38987345237
   ],
   "end_xy": [
    401303.38337697973,
    389334.4084338715
   ]
  },
  "min_50m": {
   "gradient_pct": 2.5214104092946172,
   "start_distance_m": 4.0,
   "end_distance_m": 54.0,
   "midpoint_distance_m": 29.0,
   "start_elevation_m": 222.56797167562155,
   "end_elevation_m": 223.82867688026886,
   "start_xy": [
    401283.2270233481,
    389313.5820228903
   ],
   "end_xy": [
    401316.6849056485,
    389350.6283168705
   ]
  },
  "min_100m": {
   "gradient_pct": 4.918038564281744,
   "start_distance_m": 1.0,
   "end_distance_m": 101.0,
   "midpoint_distance_m": 51.0,
   "start_elevation_m": 222.44305922094367,
   "end_elevation_m": 227.3610977852254,
   "start_xy": [
    401281.0528746075,
    389311.5148808339
   ],
   "end_xy": [
    401338.6272465596,
    389392.1076452814
   ]
  }
 },
 "diagnostic_window_maxima": {
  "max_2m": {
   "gradient_pct": 29.10071446741682,
   "start_distance_m": 265.0,
   "end_distance_m": 267.0,
   "midpoint_distance_m": 266.0,
   "start_elevation_m": 248.9800488698458,
   "end_elevation_m": 249.56206315919414,
   "start_xy": [
    401425.5124669586,
    389528.6667942038
   ],
   "end_xy": [
    401426.72156820673,
    389530.25992763665
   ]
  },
  "max_3m": {
   "gradient_pct": 27.998587652340728,
   "start_distance_m": 275.0,
   "end_distance_m": 278.0,
   "midpoint_distance_m": 276.5,
   "start_elevation_m": 249.97359644806036,
   "end_elevation_m": 250.81355407763058,
   "start_xy": [
    401431.52438458643,
    389536.6566231904
   ],
   "end_xy": [
    401432.87521632307,
    389539.3352892811
   ]
  }
 },
 "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": 0.017,
   "windows_resited": [
    2.0,
    3.0,
    5.0,
    10.0,
    100.0
   ],
   "windows_unresolved": []
  },
  "texture_suppression": {
   "masked_fraction": 0.101,
   "windows_resited": [
    2.0,
    3.0,
    5.0,
    10.0,
    20.0,
    25.0,
    50.0,
    100.0
   ],
   "windows_unresolved": []
  },
  "texture_windows": {
   "rounds": 1,
   "windows_masked": [
    {
     "window_m": 25.0,
     "start_m": 168.0,
     "end_m": 193.0,
     "raw_pct": 21.44,
     "reason": "hump"
    },
    {
     "window_m": 20.0,
     "start_m": 173.0,
     "end_m": 193.0,
     "raw_pct": 22.74,
     "reason": "hump"
    },
    {
     "window_m": 10.0,
     "start_m": 183.0,
     "end_m": 193.0,
     "raw_pct": 25.78,
     "reason": "hump"
    }
   ],
   "advisory": [],
   "unresolved": []
  },
  "overhead_obstruction": {
   "obstruction_threshold_m": 2.0,
   "obstructed_fraction": 0.07,
   "obstruction_max_height_m": 8.37,
   "flagged_windows_m": [
    10
   ]
  },
  "excluded_ranges_m": [
   [
    166.0,
    195.0
   ],
   [
    206.0,
    211.0
   ]
  ],
  "review": [],
  "extent": [
   "may_continue_beyond_end"
  ]
 },
 "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/SK0085.tif"
  ],
  "calculated_at": "2026-09-11T23:45:02+00:00",
  "road_source": "OpenStreetMap (local PBF extract)",
  "road_attribution": "\u00a9 OpenStreetMap contributors, ODbL",
  "osm_pbf_path": "output/texture-uk-england/batch-england-rchunk04.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": [
   "SK0085.tif"
  ],
  "climb_origin": "discovered",
  "license": "ODbL-1.0",
  "license_url": "https://howsteep.org/licensing"
 },
 "area": {
  "place": "Rowarth",
  "county": "Derbyshire"
 }
}