{
 "ocl_version": "0.1.0",
 "name": "Discovered lane (52.2837, -2.3727)",
 "slug": "discovered-lane-52-2837-2-3727",
 "confidence": "B",
 "reported_claims": [],
 "ladder": [
  {
   "window_m": 2.0,
   "max_gradient_pct": 25.32978408439135,
   "diagnostic": true,
   "flags": [
    "structure_excluded",
    "texture_excluded",
    "texture_excluded",
    "texture_excluded"
   ],
   "start_distance_m": 530.0,
   "end_distance_m": 532.0,
   "start_elevation_m": 173.3410066856013,
   "end_elevation_m": 173.8476023672891,
   "min_gradient_pct": -24.00526932392779,
   "suppressed_max_gradient_pct": 63.89833016283433,
   "suppressed_location_m": [
    149.0,
    151.0
   ]
  },
  {
   "window_m": 3.0,
   "max_gradient_pct": 24.478321751301262,
   "diagnostic": true,
   "flags": [
    "structure_excluded",
    "texture_excluded",
    "texture_excluded",
    "texture_excluded"
   ],
   "start_distance_m": 529.0,
   "end_distance_m": 532.0,
   "start_elevation_m": 173.11325271475008,
   "end_elevation_m": 173.8476023672891,
   "min_gradient_pct": -19.59206760363846,
   "suppressed_max_gradient_pct": 50.833219427842856,
   "suppressed_location_m": [
    149.0,
    152.0
   ]
  },
  {
   "window_m": 5.0,
   "max_gradient_pct": 21.109798614530177,
   "diagnostic": false,
   "flags": [
    "texture_excluded",
    "texture_excluded",
    "texture_excluded"
   ],
   "start_distance_m": 527.0,
   "end_distance_m": 532.0,
   "start_elevation_m": 172.7921124365626,
   "end_elevation_m": 173.8476023672891,
   "min_gradient_pct": -13.956716304492147,
   "suppressed_max_gradient_pct": 38.358005735900065,
   "suppressed_location_m": [
    422.0,
    427.0
   ]
  },
  {
   "window_m": 10.0,
   "max_gradient_pct": 16.751312273356405,
   "diagnostic": false,
   "flags": [
    "texture_excluded",
    "texture_excluded",
    "texture_excluded"
   ],
   "start_distance_m": 522.0,
   "end_distance_m": 532.0,
   "start_elevation_m": 172.17247113995347,
   "end_elevation_m": 173.8476023672891,
   "min_gradient_pct": -5.327788997275604,
   "suppressed_max_gradient_pct": 30.55105539384556,
   "suppressed_location_m": [
    421.0,
    431.0
   ]
  },
  {
   "window_m": 20.0,
   "max_gradient_pct": 14.431568839828941,
   "diagnostic": false,
   "flags": [
    "texture_excluded",
    "texture_excluded",
    "texture_excluded"
   ],
   "start_distance_m": 512.0,
   "end_distance_m": 532.0,
   "start_elevation_m": 170.96128859932332,
   "end_elevation_m": 173.8476023672891,
   "min_gradient_pct": -2.7993826497751684,
   "suppressed_max_gradient_pct": 21.65831056357547,
   "suppressed_location_m": [
    876.0,
    896.0
   ]
  },
  {
   "window_m": 25.0,
   "max_gradient_pct": 14.013570212214063,
   "diagnostic": false,
   "flags": [
    "texture_excluded",
    "texture_excluded"
   ],
   "start_distance_m": 507.0,
   "end_distance_m": 532.0,
   "start_elevation_m": 170.3442098142356,
   "end_elevation_m": 173.8476023672891,
   "min_gradient_pct": -2.687324449374273,
   "suppressed_max_gradient_pct": 20.766489485020088,
   "suppressed_location_m": [
    872.0,
    897.0
   ]
  },
  {
   "window_m": 50.0,
   "max_gradient_pct": 12.41451445928277,
   "diagnostic": false,
   "flags": [
    "texture_excluded",
    "texture_excluded"
   ],
   "start_distance_m": 482.0,
   "end_distance_m": 532.0,
   "start_elevation_m": 167.64034513764773,
   "end_elevation_m": 173.8476023672891,
   "min_gradient_pct": -0.358746946536769,
   "suppressed_max_gradient_pct": 19.986745921991883,
   "suppressed_location_m": [
    846.0,
    896.0
   ]
  },
  {
   "window_m": 100.0,
   "max_gradient_pct": 10.462723765566038,
   "diagnostic": false,
   "flags": [
    "texture_excluded",
    "texture_excluded"
   ],
   "start_distance_m": 452.0,
   "end_distance_m": 552.0,
   "start_elevation_m": 164.084239750848,
   "end_elevation_m": 174.54696351641405,
   "min_gradient_pct": 2.9465240781685225,
   "suppressed_max_gradient_pct": 15.199488620798407,
   "suppressed_location_m": [
    796.0,
    896.0
   ]
  }
 ],
 "shape": {
  "ascent_concentration": 0.347,
  "concentration_window_frac": 0.25,
  "longest_pitch_10pct_m": 73.0,
  "shape_class": "sustained"
 },
 "length_m": 902.3989808476667,
 "start_elevation_m": 133.48014992952952,
 "end_elevation_m": 203.76283079760782,
 "endpoint_gain_m": 70.2826808680783,
 "overall_gradient_pct": 7.788426445479627,
 "accumulated_ascent_m": 74.9111673950851,
 "window_maxima": {
  "max_5m": {
   "gradient_pct": 21.109798614530177,
   "start_distance_m": 527.0,
   "end_distance_m": 532.0,
   "midpoint_distance_m": 529.5,
   "start_elevation_m": 172.7921124365626,
   "end_elevation_m": 173.8476023672891,
   "start_xy": [
    374678.1980828543,
    265077.35546844127
   ],
   "end_xy": [
    374678.937122415,
    265072.41103618836
   ]
  },
  "max_10m": {
   "gradient_pct": 16.751312273356405,
   "start_distance_m": 522.0,
   "end_distance_m": 532.0,
   "midpoint_distance_m": 527.0,
   "start_elevation_m": 172.17247113995347,
   "end_elevation_m": 173.8476023672891,
   "start_xy": [
    374677.43208602164,
    265082.29644451366
   ],
   "end_xy": [
    374678.937122415,
    265072.41103618836
   ]
  },
  "max_20m": {
   "gradient_pct": 14.431568839828941,
   "start_distance_m": 512.0,
   "end_distance_m": 532.0,
   "midpoint_distance_m": 522.0,
   "start_elevation_m": 170.96128859932332,
   "end_elevation_m": 173.8476023672891,
   "start_xy": [
    374675.8979893222,
    265092.1780690218
   ],
   "end_xy": [
    374678.937122415,
    265072.41103618836
   ]
  },
  "max_25m": {
   "gradient_pct": 14.013570212214063,
   "start_distance_m": 507.0,
   "end_distance_m": 532.0,
   "midpoint_distance_m": 519.5,
   "start_elevation_m": 170.3442098142356,
   "end_elevation_m": 173.8476023672891,
   "start_xy": [
    374675.1319929667,
    265097.11904516834
   ],
   "end_xy": [
    374678.937122415,
    265072.41103618836
   ]
  },
  "max_50m": {
   "gradient_pct": 12.41451445928277,
   "start_distance_m": 482.0,
   "end_distance_m": 532.0,
   "midpoint_distance_m": 507.0,
   "start_elevation_m": 167.64034513764773,
   "end_elevation_m": 173.8476023672891,
   "start_xy": [
    374671.29810559313,
    265121.8233174404
   ],
   "end_xy": [
    374678.937122415,
    265072.41103618836
   ]
  },
  "max_100m": {
   "gradient_pct": 10.462723765566038,
   "start_distance_m": 452.0,
   "end_distance_m": 552.0,
   "midpoint_distance_m": 502.0,
   "start_elevation_m": 164.084239750848,
   "end_elevation_m": 174.54696351641405,
   "start_xy": [
    374670.5648055497,
    265150.8326397552
   ],
   "end_xy": [
    374669.745181877,
    265054.65042927465
   ]
  }
 },
 "window_minima": {
  "min_5m": {
   "gradient_pct": -13.956716304492147,
   "start_distance_m": 139.0,
   "end_distance_m": 144.0,
   "midpoint_distance_m": 141.5,
   "start_elevation_m": 139.5944548116837,
   "end_elevation_m": 138.8966189964591,
   "start_xy": [
    374885.98398206953,
    265373.54398875905
   ],
   "end_xy": [
    374881.74854834314,
    265370.8867163147
   ]
  },
  "min_10m": {
   "gradient_pct": -5.327788997275604,
   "start_distance_m": 444.0,
   "end_distance_m": 454.0,
   "midpoint_distance_m": 449.0,
   "start_elevation_m": 164.52543288828625,
   "end_elevation_m": 163.9926539885587,
   "start_xy": [
    374674.3679159048,
    265157.87084470654
   ],
   "end_xy": [
    374669.6140432981,
    265149.07308004686
   ]
  },
  "min_20m": {
   "gradient_pct": -2.7993826497751684,
   "start_distance_m": 124.0,
   "end_distance_m": 144.0,
   "midpoint_distance_m": 134.0,
   "start_elevation_m": 139.45649552641413,
   "end_elevation_m": 138.8966189964591,
   "start_xy": [
    374898.6901155823,
    265381.5160725972
   ],
   "end_xy": [
    374881.74854834314,
    265370.8867163147
   ]
  },
  "min_25m": {
   "gradient_pct": -2.687324449374273,
   "start_distance_m": 119.0,
   "end_distance_m": 144.0,
   "midpoint_distance_m": 131.5,
   "start_elevation_m": 139.56845010880266,
   "end_elevation_m": 138.8966189964591,
   "start_xy": [
    374902.92509926576,
    265384.17406223156
   ],
   "end_xy": [
    374881.74854834314,
    265370.8867163147
   ]
  },
  "min_50m": {
   "gradient_pct": -0.358746946536769,
   "start_distance_m": 94.0,
   "end_distance_m": 144.0,
   "midpoint_distance_m": 119.0,
   "start_elevation_m": 139.07599246972748,
   "end_elevation_m": 138.8966189964591,
   "start_xy": [
    374924.10193244775,
    265397.46095765027
   ],
   "end_xy": [
    374881.74854834314,
    265370.8867163147
   ]
  },
  "min_100m": {
   "gradient_pct": 2.9465240781685225,
   "start_distance_m": 533.0,
   "end_distance_m": 633.0,
   "midpoint_distance_m": 583.0,
   "start_elevation_m": 173.87617608326673,
   "end_elevation_m": 176.82270016143525,
   "start_xy": [
    374678.5290122979,
    265071.49810779316
   ],
   "end_xy": [
    374624.28253880976,
    264988.325344573
   ]
  }
 },
 "diagnostic_window_maxima": {
  "max_2m": {
   "gradient_pct": 25.32978408439135,
   "start_distance_m": 530.0,
   "end_distance_m": 532.0,
   "midpoint_distance_m": 531.0,
   "start_elevation_m": 173.3410066856013,
   "end_elevation_m": 173.8476023672891,
   "start_xy": [
    374678.65898667986,
    265074.3910855431
   ],
   "end_xy": [
    374678.937122415,
    265072.41103618836
   ]
  },
  "max_3m": {
   "gradient_pct": 24.478321751301262,
   "start_distance_m": 529.0,
   "end_distance_m": 532.0,
   "midpoint_distance_m": 530.5,
   "start_elevation_m": 173.11325271475008,
   "end_elevation_m": 173.8476023672891,
   "start_xy": [
    374678.5051279343,
    265075.3791783962
   ],
   "end_xy": [
    374678.937122415,
    265072.41103618836
   ]
  }
 },
 "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": 0.007,
   "windows_resited": [
    2.0,
    3.0
   ],
   "windows_unresolved": []
  },
  "no_bench_suppression": {
   "masked_fraction": 0.074,
   "windows_resited": [],
   "windows_unresolved": []
  },
  "texture_suppression": {
   "masked_fraction": 0.198,
   "windows_resited": [
    2.0,
    3.0,
    5.0,
    10.0,
    20.0
   ],
   "windows_unresolved": []
  },
  "texture_windows": {
   "rounds": 3,
   "windows_masked": [
    {
     "window_m": 25.0,
     "start_m": 872.0,
     "end_m": 897.0,
     "raw_pct": 20.77,
     "reason": "edge-step"
    },
    {
     "window_m": 20.0,
     "start_m": 876.0,
     "end_m": 896.0,
     "raw_pct": 21.66,
     "reason": "edge-step"
    },
    {
     "window_m": 10.0,
     "start_m": 421.0,
     "end_m": 431.0,
     "raw_pct": 30.55,
     "reason": "hump+short-step"
    },
    {
     "window_m": 5.0,
     "start_m": 422.0,
     "end_m": 427.0,
     "raw_pct": 38.36,
     "reason": "hump"
    },
    {
     "window_m": 25.0,
     "start_m": 843.0,
     "end_m": 868.0,
     "raw_pct": 19.77,
     "reason": "mask-edge"
    },
    {
     "window_m": 20.0,
     "start_m": 849.0,
     "end_m": 869.0,
     "raw_pct": 20.5,
     "reason": "mask-edge"
    },
    {
     "window_m": 10.0,
     "start_m": 400.0,
     "end_m": 410.0,
     "raw_pct": 25.84,
     "reason": "hump"
    },
    {
     "window_m": 20.0,
     "start_m": 377.0,
     "end_m": 397.0,
     "raw_pct": 15.0,
     "reason": "mask-edge"
    }
   ],
   "advisory": [],
   "unresolved": []
  },
  "overhead_obstruction": {
   "obstruction_threshold_m": 2.0,
   "obstructed_fraction": 0.154,
   "obstruction_max_height_m": 28.97,
   "flagged_windows_m": []
  },
  "excluded_ranges_m": [
   [
    60.0,
    120.0
   ],
   [
    147.0,
    152.0
   ],
   [
    375.0,
    412.0
   ],
   [
    419.0,
    433.0
   ],
   [
    841.0,
    899.0
   ]
  ],
  "review": [],
  "extent": [
   "may_start_earlier",
   "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/SO7060.tif",
   "data/cache/england/bulk_dtm_1m/SO7065.tif",
   "data/cache/england/bulk_dtm_1m/SO7565.tif"
  ],
  "calculated_at": "2026-09-12T01:39:14+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-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": [
   "SO7060.tif",
   "SO7065.tif",
   "SO7565.tif"
  ],
  "climb_origin": "discovered",
  "license": "ODbL-1.0",
  "license_url": "https://howsteep.org/licensing"
 },
 "area": {
  "place": "Great Witley",
  "county": "Worcestershire"
 }
}