{
 "ocl_version": "0.1.0",
 "name": "Discovered lane (50.2114, -4.9379)",
 "slug": "discovered-lane-50-2114-4-9379",
 "confidence": "B",
 "reported_claims": [],
 "ladder": [
  {
   "window_m": 2.0,
   "max_gradient_pct": 39.100129876274536,
   "diagnostic": true,
   "flags": [
    "texture_excluded"
   ],
   "start_distance_m": 276.0,
   "end_distance_m": 278.0,
   "start_elevation_m": 45.82474030916191,
   "end_elevation_m": 46.6067429066874,
   "min_gradient_pct": -25.304902196621626,
   "suppressed_max_gradient_pct": 48.09781446650554,
   "suppressed_location_m": [
    150.0,
    152.0
   ]
  },
  {
   "window_m": 3.0,
   "max_gradient_pct": 37.685629190147786,
   "diagnostic": true,
   "flags": [
    "texture_excluded"
   ],
   "start_distance_m": 192.0,
   "end_distance_m": 195.0,
   "start_elevation_m": 37.14692400044963,
   "end_elevation_m": 38.277492876154064,
   "min_gradient_pct": -18.93983328113625,
   "suppressed_max_gradient_pct": 45.112863152321125,
   "suppressed_location_m": [
    150.0,
    153.0
   ]
  },
  {
   "window_m": 5.0,
   "max_gradient_pct": 33.33220918065166,
   "diagnostic": false,
   "flags": [
    "texture_excluded"
   ],
   "start_distance_m": 273.0,
   "end_distance_m": 278.0,
   "start_elevation_m": 44.94013244765482,
   "end_elevation_m": 46.6067429066874,
   "min_gradient_pct": -12.456455607694181,
   "suppressed_max_gradient_pct": 44.33632902697369,
   "suppressed_location_m": [
    150.0,
    155.0
   ]
  },
  {
   "window_m": 10.0,
   "max_gradient_pct": 26.262017522171778,
   "diagnostic": false,
   "flags": [
    "texture_excluded"
   ],
   "start_distance_m": 68.0,
   "end_distance_m": 78.0,
   "start_elevation_m": 16.116424792330577,
   "end_elevation_m": 18.742626544547754,
   "min_gradient_pct": -4.675252676897301,
   "suppressed_max_gradient_pct": 31.912570569310788,
   "suppressed_location_m": [
    147.0,
    157.0
   ]
  },
  {
   "window_m": 20.0,
   "max_gradient_pct": 20.9532275848166,
   "diagnostic": false,
   "flags": [
    "texture_excluded"
   ],
   "start_distance_m": 62.0,
   "end_distance_m": 82.0,
   "start_elevation_m": 15.176575586676835,
   "end_elevation_m": 19.367221103640155,
   "min_gradient_pct": 2.8170447984675917,
   "suppressed_max_gradient_pct": 22.815400771695167,
   "suppressed_location_m": [
    102.0,
    122.0
   ]
  },
  {
   "window_m": 25.0,
   "max_gradient_pct": 19.539108280112735,
   "diagnostic": false,
   "flags": [
    "texture_excluded"
   ],
   "start_distance_m": 58.0,
   "end_distance_m": 83.0,
   "start_elevation_m": 14.678442275663164,
   "end_elevation_m": 19.563219345691348,
   "min_gradient_pct": 3.364136896968404,
   "suppressed_max_gradient_pct": 23.12815578194204,
   "suppressed_location_m": [
    107.0,
    132.0
   ]
  },
  {
   "window_m": 50.0,
   "max_gradient_pct": 16.96947788415457,
   "diagnostic": false,
   "flags": [
    "texture_excluded"
   ],
   "start_distance_m": 327.0,
   "end_distance_m": 377.0,
   "start_elevation_m": 52.3520569240582,
   "end_elevation_m": 60.83679586613549,
   "min_gradient_pct": 7.645901571141884,
   "suppressed_max_gradient_pct": 21.813491178147245,
   "suppressed_location_m": [
    107.0,
    157.0
   ]
  },
  {
   "window_m": 100.0,
   "max_gradient_pct": 16.57543345332425,
   "diagnostic": false,
   "flags": [
    "texture_excluded"
   ],
   "start_distance_m": 321.0,
   "end_distance_m": 421.0,
   "start_elevation_m": 51.44591376018738,
   "end_elevation_m": 68.02134721351163,
   "min_gradient_pct": 9.336887238325396,
   "suppressed_max_gradient_pct": 18.800411942757464,
   "suppressed_location_m": [
    59.0,
    159.0
   ]
  }
 ],
 "shape": {
  "ascent_concentration": 0.324,
  "concentration_window_frac": 0.25,
  "longest_pitch_10pct_m": 152.0,
  "shape_class": "sustained"
 },
 "length_m": 436.0592911285174,
 "start_elevation_m": 9.754156818918354,
 "end_elevation_m": 69.92886439056387,
 "endpoint_gain_m": 60.17470757164552,
 "overall_gradient_pct": 13.799661834039574,
 "accumulated_ascent_m": 63.089976820850985,
 "window_maxima": {
  "max_5m": {
   "gradient_pct": 33.33220918065166,
   "start_distance_m": 273.0,
   "end_distance_m": 278.0,
   "midpoint_distance_m": 275.5,
   "start_elevation_m": 44.94013244765482,
   "end_elevation_m": 46.6067429066874,
   "start_xy": [
    190341.2129631858,
    38824.2093700484
   ],
   "end_xy": [
    190345.3991237687,
    38821.47513297314
   ]
  },
  "max_10m": {
   "gradient_pct": 26.262017522171778,
   "start_distance_m": 68.0,
   "end_distance_m": 78.0,
   "midpoint_distance_m": 73.0,
   "start_elevation_m": 16.116424792330577,
   "end_elevation_m": 18.742626544547754,
   "start_xy": [
    190137.49438750924,
    38813.69885883124
   ],
   "end_xy": [
    190147.34977712602,
    38814.00022931481
   ]
  },
  "max_20m": {
   "gradient_pct": 20.9532275848166,
   "start_distance_m": 62.0,
   "end_distance_m": 82.0,
   "midpoint_distance_m": 72.0,
   "start_elevation_m": 15.176575586676835,
   "end_elevation_m": 19.367221103640155,
   "start_xy": [
    190132.8152789529,
    38817.19389342284
   ],
   "end_xy": [
    190151.29907954737,
    38814.635058326734
   ]
  },
  "max_25m": {
   "gradient_pct": 19.539108280112735,
   "start_distance_m": 58.0,
   "end_distance_m": 83.0,
   "midpoint_distance_m": 70.5,
   "start_elevation_m": 14.678442275663164,
   "end_elevation_m": 19.563219345691348,
   "start_xy": [
    190132.98706533836,
    38820.64104086832
   ],
   "end_xy": [
    190152.2864966664,
    38814.79319551161
   ]
  },
  "max_50m": {
   "gradient_pct": 16.96947788415457,
   "start_distance_m": 327.0,
   "end_distance_m": 377.0,
   "midpoint_distance_m": 352.0,
   "start_elevation_m": 52.3520569240582,
   "end_elevation_m": 60.83679586613549,
   "start_xy": [
    190386.59394975717,
    38794.94674149379
   ],
   "end_xy": [
    190429.0361282208,
    38768.51455026054
   ]
  },
  "max_100m": {
   "gradient_pct": 16.57543345332425,
   "start_distance_m": 321.0,
   "end_distance_m": 421.0,
   "midpoint_distance_m": 371.0,
   "start_elevation_m": 51.44591376018738,
   "end_elevation_m": 68.02134721351163,
   "start_xy": [
    190381.5009678721,
    38798.11873022794
   ],
   "end_xy": [
    190462.3306332675,
    38739.92875392113
   ]
  }
 },
 "window_minima": {
  "min_5m": {
   "gradient_pct": -12.456455607694181,
   "start_distance_m": 259.0,
   "end_distance_m": 264.0,
   "midpoint_distance_m": 261.5,
   "start_elevation_m": 44.87835567302893,
   "end_elevation_m": 44.25553289264422,
   "start_xy": [
    190327.42710547487,
    38826.332204876555
   ],
   "end_xy": [
    190332.39036522346,
    38825.72718208254
   ]
  },
  "min_10m": {
   "gradient_pct": -4.675252676897301,
   "start_distance_m": 258.0,
   "end_distance_m": 268.0,
   "midpoint_distance_m": 263.0,
   "start_elevation_m": 44.94666753230259,
   "end_elevation_m": 44.47914226461286,
   "start_xy": [
    190326.43444894667,
    38826.45317188062
   ],
   "end_xy": [
    190336.36097989188,
    38825.24322019464
   ]
  },
  "min_20m": {
   "gradient_pct": 2.8170447984675917,
   "start_distance_m": 249.0,
   "end_distance_m": 269.0,
   "midpoint_distance_m": 259.0,
   "start_elevation_m": 44.00273353966355,
   "end_elevation_m": 44.56614249935707,
   "start_xy": [
    190317.50057453153,
    38827.54215657773
   ],
   "end_xy": [
    190337.35362390804,
    38825.12215056105
   ]
  },
  "min_25m": {
   "gradient_pct": 3.364136896968404,
   "start_distance_m": 0.0,
   "end_distance_m": 25.0,
   "midpoint_distance_m": 12.5,
   "start_elevation_m": 9.754156818918354,
   "end_elevation_m": 10.595191043160455,
   "start_xy": [
    190161.353,
    38867.361
   ],
   "end_xy": [
    190149.14797669774,
    38846.834629279125
   ]
  },
  "min_50m": {
   "gradient_pct": 7.645901571141884,
   "start_distance_m": 0.0,
   "end_distance_m": 50.0,
   "midpoint_distance_m": 25.0,
   "start_elevation_m": 9.754156818918354,
   "end_elevation_m": 13.577107604489296,
   "start_xy": [
    190161.353,
    38867.361
   ],
   "end_xy": [
    190138.11576890104,
    38826.68056225051
   ]
  },
  "min_100m": {
   "gradient_pct": 9.336887238325396,
   "start_distance_m": 200.0,
   "end_distance_m": 300.0,
   "midpoint_distance_m": 250.0,
   "start_elevation_m": 39.08430835102995,
   "end_elevation_m": 48.42119558935534,
   "start_xy": [
    190268.64099002452,
    38826.27333906964
   ],
   "end_xy": [
    190363.81688229906,
    38809.44242275025
   ]
  }
 },
 "diagnostic_window_maxima": {
  "max_2m": {
   "gradient_pct": 39.100129876274536,
   "start_distance_m": 276.0,
   "end_distance_m": 278.0,
   "midpoint_distance_m": 277.0,
   "start_elevation_m": 45.82474030916191,
   "end_elevation_m": 46.6067429066874,
   "start_xy": [
    190343.72493792378,
    38822.569254427355
   ],
   "end_xy": [
    190345.3991237687,
    38821.47513297314
   ]
  },
  "max_3m": {
   "gradient_pct": 37.685629190147786,
   "start_distance_m": 192.0,
   "end_distance_m": 195.0,
   "midpoint_distance_m": 193.5,
   "start_elevation_m": 37.14692400044963,
   "end_elevation_m": 38.277492876154064,
   "start_xy": [
    190260.65625662985,
    38825.77935536516
   ],
   "end_xy": [
    190263.65054120493,
    38825.96444444359
   ]
  }
 },
 "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": {
  "texture_suppression": {
   "masked_fraction": 0.103,
   "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": 107.0,
     "end_m": 132.0,
     "raw_pct": 23.13,
     "reason": "hump"
    },
    {
     "window_m": 10.0,
     "start_m": 147.0,
     "end_m": 157.0,
     "raw_pct": 31.91,
     "reason": "hump+short-step"
    },
    {
     "window_m": 5.0,
     "start_m": 150.0,
     "end_m": 155.0,
     "raw_pct": 44.34,
     "reason": "hump"
    }
   ],
   "advisory": [],
   "unresolved": []
  },
  "overhead_obstruction": {
   "obstruction_threshold_m": 2.0,
   "obstructed_fraction": 0.112,
   "obstruction_max_height_m": 16.34,
   "flagged_windows_m": []
  },
  "excluded_ranges_m": [
   [
    105.0,
    134.0
   ],
   [
    145.0,
    159.0
   ]
  ],
  "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/SW9035.tif"
  ],
  "calculated_at": "2026-09-12T01:38:20+00:00",
  "road_source": "OpenStreetMap (local PBF extract)",
  "road_attribution": "\u00a9 OpenStreetMap contributors, ODbL",
  "osm_pbf_path": "output/texture-uk-england/batch-england-rchunk00.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": [
   "SW9035.tif"
  ],
  "climb_origin": "discovered",
  "license": "ODbL-1.0",
  "license_url": "https://howsteep.org/licensing"
 },
 "area": {
  "place": "Spires Point",
  "county": "Cornwall"
 }
}