{
 "ocl_version": "0.1.0",
 "name": "Discovered lane (53.3755, -2.0338)",
 "slug": "discovered-lane-53-3755-2-0338",
 "confidence": "B",
 "reported_claims": [],
 "ladder": [
  {
   "window_m": 2.0,
   "max_gradient_pct": 32.85596411827356,
   "diagnostic": true,
   "flags": [
    "texture_excluded"
   ],
   "start_distance_m": 480.0,
   "end_distance_m": 482.0,
   "start_elevation_m": 171.89087073096422,
   "end_elevation_m": 172.5479900133297,
   "min_gradient_pct": -9.1913398734917,
   "suppressed_max_gradient_pct": 36.231547005264986,
   "suppressed_location_m": [
    616.0,
    618.0
   ]
  },
  {
   "window_m": 3.0,
   "max_gradient_pct": 28.22154055906007,
   "diagnostic": true,
   "flags": [
    "texture_excluded"
   ],
   "start_distance_m": 479.0,
   "end_distance_m": 482.0,
   "start_elevation_m": 171.7013437965579,
   "end_elevation_m": 172.5479900133297,
   "min_gradient_pct": -5.940277727928371,
   "suppressed_max_gradient_pct": 34.6069215644358,
   "suppressed_location_m": [
    616.0,
    619.0
   ]
  },
  {
   "window_m": 5.0,
   "max_gradient_pct": 24.511824069953434,
   "diagnostic": false,
   "flags": [
    "texture_excluded"
   ],
   "start_distance_m": 77.0,
   "end_distance_m": 82.0,
   "start_elevation_m": 120.37115324273306,
   "end_elevation_m": 121.59674444623073,
   "min_gradient_pct": -5.582160744367286,
   "suppressed_max_gradient_pct": 32.169735676257574,
   "suppressed_location_m": [
    615.0,
    620.0
   ]
  },
  {
   "window_m": 10.0,
   "max_gradient_pct": 19.72192944642927,
   "diagnostic": false,
   "flags": [
    "texture_excluded"
   ],
   "start_distance_m": 258.0,
   "end_distance_m": 268.0,
   "start_elevation_m": 146.3893332208003,
   "end_elevation_m": 148.36152616544322,
   "min_gradient_pct": -4.06271562783715,
   "suppressed_max_gradient_pct": 25.8398399269754,
   "suppressed_location_m": [
    610.0,
    620.0
   ]
  },
  {
   "window_m": 20.0,
   "max_gradient_pct": 17.870229832013607,
   "diagnostic": false,
   "flags": [
    "texture_excluded"
   ],
   "start_distance_m": 120.0,
   "end_distance_m": 140.0,
   "start_elevation_m": 127.30624863798171,
   "end_elevation_m": 130.88029460438443,
   "min_gradient_pct": -1.7782846463808255,
   "suppressed_max_gradient_pct": 20.999097487380993,
   "suppressed_location_m": [
    601.0,
    621.0
   ]
  },
  {
   "window_m": 25.0,
   "max_gradient_pct": 18.379561175118,
   "diagnostic": false,
   "flags": [
    "texture_excluded"
   ],
   "start_distance_m": 115.0,
   "end_distance_m": 140.0,
   "start_elevation_m": 126.28540431060493,
   "end_elevation_m": 130.88029460438443,
   "min_gradient_pct": -1.0447117805564972,
   "suppressed_max_gradient_pct": 20.35439515523592,
   "suppressed_location_m": [
    595.0,
    620.0
   ]
  },
  {
   "window_m": 50.0,
   "max_gradient_pct": 16.705371232508696,
   "diagnostic": false,
   "flags": [
    "texture_excluded"
   ],
   "start_distance_m": 90.0,
   "end_distance_m": 140.0,
   "start_elevation_m": 122.52760898813008,
   "end_elevation_m": 130.88029460438443,
   "min_gradient_pct": 1.3177100742468042,
   "suppressed_max_gradient_pct": 18.038017529213676,
   "suppressed_location_m": [
    571.0,
    621.0
   ]
  },
  {
   "window_m": 100.0,
   "max_gradient_pct": 15.567123990875828,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 77.0,
   "end_distance_m": 177.0,
   "start_elevation_m": 120.37115324273306,
   "end_elevation_m": 135.9382772336089,
   "min_gradient_pct": 6.428955094967919
  }
 ],
 "shape": {
  "ascent_concentration": 0.3,
  "concentration_window_frac": 0.25,
  "longest_pitch_10pct_m": 136.0,
  "shape_class": "sustained"
 },
 "length_m": 621.0031249000555,
 "start_elevation_m": 117.63350106902978,
 "end_elevation_m": 192.44047251415975,
 "endpoint_gain_m": 74.80697144512997,
 "overall_gradient_pct": 12.046150566016788,
 "accumulated_ascent_m": 76.16814733113904,
 "window_maxima": {
  "max_5m": {
   "gradient_pct": 24.511824069953434,
   "start_distance_m": 77.0,
   "end_distance_m": 82.0,
   "midpoint_distance_m": 79.5,
   "start_elevation_m": 120.37115324273306,
   "end_elevation_m": 121.59674444623073,
   "start_xy": [
    397852.3512873809,
    386538.6893095507
   ],
   "end_xy": [
    397853.2705813853,
    386543.56069740234
   ]
  },
  "max_10m": {
   "gradient_pct": 19.72192944642927,
   "start_distance_m": 258.0,
   "end_distance_m": 268.0,
   "midpoint_distance_m": 263.0,
   "start_elevation_m": 146.3893332208003,
   "end_elevation_m": 148.36152616544322,
   "start_xy": [
    397918.51739806583,
    386701.4282152368
   ],
   "end_xy": [
    397926.39290242514,
    386707.5907156014
   ]
  },
  "max_20m": {
   "gradient_pct": 17.870229832013607,
   "start_distance_m": 120.0,
   "end_distance_m": 140.0,
   "midpoint_distance_m": 130.0,
   "start_elevation_m": 127.30624863798171,
   "end_elevation_m": 130.88029460438443,
   "start_xy": [
    397854.0641930692,
    386581.5426629128
   ],
   "end_xy": [
    397862.13388887496,
    386599.38504933886
   ]
  },
  "max_25m": {
   "gradient_pct": 18.379561175118,
   "start_distance_m": 115.0,
   "end_distance_m": 140.0,
   "midpoint_distance_m": 127.5,
   "start_elevation_m": 126.28540431060493,
   "end_elevation_m": 130.88029460438443,
   "start_xy": [
    397853.89921372064,
    386576.54538547323
   ],
   "end_xy": [
    397862.13388887496,
    386599.38504933886
   ]
  },
  "max_50m": {
   "gradient_pct": 16.705371232508696,
   "start_distance_m": 90.0,
   "end_distance_m": 140.0,
   "midpoint_distance_m": 115.0,
   "start_elevation_m": 122.52760898813008,
   "end_elevation_m": 130.88029460438443,
   "start_xy": [
    397853.5634714639,
    386551.5553331235
   ],
   "end_xy": [
    397862.13388887496,
    386599.38504933886
   ]
  },
  "max_100m": {
   "gradient_pct": 15.567123990875828,
   "start_distance_m": 77.0,
   "end_distance_m": 177.0,
   "midpoint_distance_m": 127.0,
   "start_elevation_m": 120.37115324273306,
   "end_elevation_m": 135.9382772336089,
   "start_xy": [
    397852.3512873809,
    386538.6893095507
   ],
   "end_xy": [
    397880.7652726368,
    386631.3490713761
   ]
  }
 },
 "window_minima": {
  "min_5m": {
   "gradient_pct": -5.582160744367286,
   "start_distance_m": 23.0,
   "end_distance_m": 28.0,
   "midpoint_distance_m": 25.5,
   "start_elevation_m": 118.6760239760579,
   "end_elevation_m": 118.39691593883954,
   "start_xy": [
    397851.8845644536,
    386487.27018774487
   ],
   "end_xy": [
    397849.7786261027,
    386491.80505492847
   ]
  },
  "min_10m": {
   "gradient_pct": -4.06271562783715,
   "start_distance_m": 21.0,
   "end_distance_m": 31.0,
   "midpoint_distance_m": 26.0,
   "start_elevation_m": 118.75022146084241,
   "end_elevation_m": 118.3439498980587,
   "start_xy": [
    397852.72743333376,
    386485.4564702286
   ],
   "end_xy": [
    397848.5147031936,
    386494.525807379
   ]
  },
  "min_20m": {
   "gradient_pct": -1.7782846463808255,
   "start_distance_m": 21.0,
   "end_distance_m": 41.0,
   "midpoint_distance_m": 31.0,
   "start_elevation_m": 118.75022146084241,
   "end_elevation_m": 118.39456453156625,
   "start_xy": [
    397852.72743333376,
    386485.4564702286
   ],
   "end_xy": [
    397845.379428247,
    386503.9858688176
   ]
  },
  "min_25m": {
   "gradient_pct": -1.0447117805564972,
   "start_distance_m": 21.0,
   "end_distance_m": 46.0,
   "midpoint_distance_m": 33.5,
   "start_elevation_m": 118.75022146084241,
   "end_elevation_m": 118.48904351570329,
   "start_xy": [
    397852.72743333376,
    386485.4564702286
   ],
   "end_xy": [
    397844.90660588467,
    386508.94876803
   ]
  },
  "min_50m": {
   "gradient_pct": 1.3177100742468042,
   "start_distance_m": 2.0,
   "end_distance_m": 52.0,
   "midpoint_distance_m": 27.0,
   "start_elevation_m": 118.07591255496256,
   "end_elevation_m": 118.73476759208596,
   "start_xy": [
    397837.3654537339,
    386474.52430650295
   ],
   "end_xy": [
    397844.6700270352,
    386514.9439871596
   ]
  },
  "min_100m": {
   "gradient_pct": 6.428955094967919,
   "start_distance_m": 1.0,
   "end_distance_m": 101.0,
   "midpoint_distance_m": 51.0,
   "start_elevation_m": 117.9110785649069,
   "end_elevation_m": 124.34003365987482,
   "start_xy": [
    397836.53665162524,
    386473.96476466843
   ],
   "end_xy": [
    397853.9538073658,
    386562.5483171105
   ]
  }
 },
 "diagnostic_window_maxima": {
  "max_2m": {
   "gradient_pct": 32.85596411827356,
   "start_distance_m": 480.0,
   "end_distance_m": 482.0,
   "midpoint_distance_m": 481.0,
   "start_elevation_m": 171.89087073096422,
   "end_elevation_m": 172.5479900133297,
   "start_xy": [
    398092.8826523386,
    386804.99294166896
   ],
   "end_xy": [
    398094.86938687385,
    386805.22291095625
   ]
  },
  "max_3m": {
   "gradient_pct": 28.22154055906007,
   "start_distance_m": 479.0,
   "end_distance_m": 482.0,
   "midpoint_distance_m": 480.5,
   "start_elevation_m": 171.7013437965579,
   "end_elevation_m": 172.5479900133297,
   "start_xy": [
    398091.90899099497,
    386804.77113863704
   ],
   "end_xy": [
    398094.86938687385,
    386805.22291095625
   ]
  }
 },
 "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": 0.045,
   "windows_resited": [],
   "windows_unresolved": []
  },
  "texture_suppression": {
   "masked_fraction": 0.092,
   "windows_resited": [
    2.0,
    3.0,
    5.0,
    10.0,
    20.0,
    25.0,
    50.0
   ],
   "windows_unresolved": []
  },
  "texture_windows": {
   "rounds": 1,
   "windows_masked": [
    {
     "window_m": 25.0,
     "start_m": 595.0,
     "end_m": 620.0,
     "raw_pct": 20.35,
     "reason": "edge-step"
    },
    {
     "window_m": 20.0,
     "start_m": 601.0,
     "end_m": 621.0,
     "raw_pct": 21.0,
     "reason": "edge-step"
    }
   ],
   "advisory": [],
   "unresolved": []
  },
  "overhead_obstruction": {
   "obstruction_threshold_m": 2.0,
   "obstructed_fraction": 0.087,
   "obstruction_max_height_m": 21.09,
   "flagged_windows_m": []
  },
  "excluded_ranges_m": [
   [
    0.0,
    27.0
   ],
   [
    593.0,
    621.0
   ]
  ],
  "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/SJ9585.tif"
  ],
  "calculated_at": "2026-09-12T01:37:42+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-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": [
   "SJ9585.tif"
  ],
  "climb_origin": "discovered",
  "license": "ODbL-1.0",
  "license_url": "https://howsteep.org/licensing"
 },
 "area": {
  "place": "Strines",
  "county": ""
 }
}