{
 "ocl_version": "0.1.0",
 "name": "Discovered lane (50.3650, -3.5721)",
 "slug": "discovered-lane-50-3650-3-5721",
 "confidence": "B",
 "reported_claims": [],
 "ladder": [
  {
   "window_m": 2.0,
   "max_gradient_pct": 37.571120575456796,
   "diagnostic": true,
   "flags": [
    "structure_excluded",
    "placement_excluded"
   ],
   "start_distance_m": 44.0,
   "end_distance_m": 46.0,
   "start_elevation_m": 7.586079387100096,
   "end_elevation_m": 8.337501798609232,
   "min_gradient_pct": -100.15365378785255,
   "suppressed_max_gradient_pct": 130.3107362549806,
   "suppressed_location_m": [
    174.0,
    176.0
   ]
  },
  {
   "window_m": 3.0,
   "max_gradient_pct": 31.451412552945467,
   "diagnostic": true,
   "flags": [
    "structure_excluded",
    "placement_excluded",
    "texture_excluded"
   ],
   "start_distance_m": 43.0,
   "end_distance_m": 46.0,
   "start_elevation_m": 7.393959422020868,
   "end_elevation_m": 8.337501798609232,
   "min_gradient_pct": -98.0414985771808,
   "suppressed_max_gradient_pct": 124.40109900321595,
   "suppressed_location_m": [
    173.0,
    176.0
   ]
  },
  {
   "window_m": 5.0,
   "max_gradient_pct": 28.217861694005535,
   "diagnostic": false,
   "flags": [
    "structure_excluded",
    "texture_excluded"
   ],
   "start_distance_m": 290.0,
   "end_distance_m": 295.0,
   "start_elevation_m": 39.72155918702595,
   "end_elevation_m": 41.13245227172623,
   "min_gradient_pct": -87.96726237471063,
   "suppressed_max_gradient_pct": 117.01373295443844,
   "suppressed_location_m": [
    172.0,
    177.0
   ]
  },
  {
   "window_m": 10.0,
   "max_gradient_pct": 23.99455458304459,
   "diagnostic": false,
   "flags": [
    "structure_excluded",
    "texture_excluded"
   ],
   "start_distance_m": 285.0,
   "end_distance_m": 295.0,
   "start_elevation_m": 38.73299681342177,
   "end_elevation_m": 41.13245227172623,
   "min_gradient_pct": -49.234193468145726,
   "suppressed_max_gradient_pct": 89.22934664406648,
   "suppressed_location_m": [
    168.0,
    178.0
   ]
  },
  {
   "window_m": 20.0,
   "max_gradient_pct": 22.349250713958284,
   "diagnostic": false,
   "flags": [
    "structure_excluded"
   ],
   "start_distance_m": 275.0,
   "end_distance_m": 295.0,
   "start_elevation_m": 36.66260212893457,
   "end_elevation_m": 41.13245227172623,
   "min_gradient_pct": -19.848408659586905,
   "suppressed_max_gradient_pct": 51.61793725271134,
   "suppressed_location_m": [
    168.0,
    188.0
   ]
  },
  {
   "window_m": 25.0,
   "max_gradient_pct": 21.589793122318014,
   "diagnostic": false,
   "flags": [
    "structure_excluded"
   ],
   "start_distance_m": 274.0,
   "end_distance_m": 299.0,
   "start_elevation_m": 36.46705074297571,
   "end_elevation_m": 41.86449902355521,
   "min_gradient_pct": -13.071872569609177,
   "suppressed_max_gradient_pct": 44.27189919848101,
   "suppressed_location_m": [
    168.0,
    193.0
   ]
  },
  {
   "window_m": 50.0,
   "max_gradient_pct": 19.272731805474393,
   "diagnostic": false,
   "flags": [
    "structure_excluded"
   ],
   "start_distance_m": 264.0,
   "end_distance_m": 314.0,
   "start_elevation_m": 34.76303456260946,
   "end_elevation_m": 44.39940046534666,
   "min_gradient_pct": -3.024314118934498,
   "suppressed_max_gradient_pct": 30.97035491314575,
   "suppressed_location_m": [
    168.0,
    218.0
   ]
  },
  {
   "window_m": 100.0,
   "max_gradient_pct": 18.37229877196487,
   "diagnostic": false,
   "flags": [
    "structure_excluded"
   ],
   "start_distance_m": 198.0,
   "end_distance_m": 298.0,
   "start_elevation_m": 23.338204843634315,
   "end_elevation_m": 41.71050361559919,
   "min_gradient_pct": 0.9827878230559577,
   "suppressed_max_gradient_pct": 24.047082249947433,
   "suppressed_location_m": [
    168.0,
    268.0
   ]
  }
 ],
 "shape": {
  "ascent_concentration": 0.404,
  "concentration_window_frac": 0.25,
  "longest_pitch_10pct_m": 179.0,
  "shape_class": "sustained"
 },
 "length_m": 2701.9731950984506,
 "start_elevation_m": 5.0671711905363335,
 "end_elevation_m": 153.10838115945373,
 "endpoint_gain_m": 148.0412099689174,
 "overall_gradient_pct": 5.479003649535586,
 "accumulated_ascent_m": 172.81214491366615,
 "window_maxima": {
  "max_5m": {
   "gradient_pct": 28.217861694005535,
   "start_distance_m": 290.0,
   "end_distance_m": 295.0,
   "midpoint_distance_m": 292.5,
   "start_elevation_m": 39.72155918702595,
   "end_elevation_m": 41.13245227172623,
   "start_xy": [
    288278.34424264287,
    52862.457155509706
   ],
   "end_xy": [
    288282.9372261518,
    52860.481174831366
   ]
  },
  "max_10m": {
   "gradient_pct": 23.99455458304459,
   "start_distance_m": 285.0,
   "end_distance_m": 295.0,
   "midpoint_distance_m": 290.0,
   "start_elevation_m": 38.73299681342177,
   "end_elevation_m": 41.13245227172623,
   "start_xy": [
    288273.5980679729,
    52863.992144485834
   ],
   "end_xy": [
    288282.9372261518,
    52860.481174831366
   ]
  },
  "max_20m": {
   "gradient_pct": 22.349250713958284,
   "start_distance_m": 275.0,
   "end_distance_m": 295.0,
   "midpoint_distance_m": 285.0,
   "start_elevation_m": 36.66260212893457,
   "end_elevation_m": 41.13245227172623,
   "start_xy": [
    288263.916427804,
    52866.49530686881
   ],
   "end_xy": [
    288282.9372261518,
    52860.481174831366
   ]
  },
  "max_25m": {
   "gradient_pct": 21.589793122318014,
   "start_distance_m": 274.0,
   "end_distance_m": 299.0,
   "midpoint_distance_m": 286.5,
   "start_elevation_m": 36.46705074297571,
   "end_elevation_m": 41.86449902355521,
   "start_xy": [
    288262.9484372913,
    52866.74629363624
   ],
   "end_xy": [
    288286.108911037,
    52858.20229939144
   ]
  },
  "max_50m": {
   "gradient_pct": 19.272731805474393,
   "start_distance_m": 264.0,
   "end_distance_m": 314.0,
   "midpoint_distance_m": 289.0,
   "start_elevation_m": 34.76303456260946,
   "end_elevation_m": 44.39940046534666,
   "start_xy": [
    288253.26673526206,
    52869.24921637315
   ],
   "end_xy": [
    288295.04074559343,
    52846.15147990401
   ]
  },
  "max_100m": {
   "gradient_pct": 18.37229877196487,
   "start_distance_m": 198.0,
   "end_distance_m": 298.0,
   "midpoint_distance_m": 248.0,
   "start_elevation_m": 23.338204843634315,
   "end_elevation_m": 41.71050361559919,
   "start_xy": [
    288189.6486105429,
    52886.51897649725
   ],
   "end_xy": [
    288285.5135520335,
    52859.00575918843
   ]
  }
 },
 "window_minima": {
  "min_5m": {
   "gradient_pct": -87.96726237471063,
   "start_distance_m": 155.0,
   "end_distance_m": 160.0,
   "midpoint_distance_m": 157.5,
   "start_elevation_m": 16.413418604945676,
   "end_elevation_m": 12.015055486210144,
   "start_xy": [
    288152.4778400376,
    52907.749529867906
   ],
   "end_xy": [
    288156.7050983413,
    52905.07954991827
   ]
  },
  "min_10m": {
   "gradient_pct": -49.234193468145726,
   "start_distance_m": 155.0,
   "end_distance_m": 165.0,
   "midpoint_distance_m": 160.0,
   "start_elevation_m": 16.413418604945676,
   "end_elevation_m": 11.489999258131103,
   "start_xy": [
    288152.4778400376,
    52907.749529867906
   ],
   "end_xy": [
    288160.9424528184,
    52902.425341988506
   ]
  },
  "min_20m": {
   "gradient_pct": -19.848408659586905,
   "start_distance_m": 148.0,
   "end_distance_m": 168.0,
   "midpoint_distance_m": 158.0,
   "start_elevation_m": 15.433551048750545,
   "end_elevation_m": 11.463869316833163,
   "start_xy": [
    288146.9145497619,
    52911.997984565176
   ],
   "end_xy": [
    288163.485262993,
    52900.833452064515
   ]
  },
  "min_25m": {
   "gradient_pct": -13.071872569609177,
   "start_distance_m": 143.0,
   "end_distance_m": 168.0,
   "midpoint_distance_m": 155.5,
   "start_elevation_m": 14.731837459235457,
   "end_elevation_m": 11.463869316833163,
   "start_xy": [
    288143.7047308997,
    52915.78265150737
   ],
   "end_xy": [
    288163.485262993,
    52900.833452064515
   ]
  },
  "min_50m": {
   "gradient_pct": -3.024314118934498,
   "start_distance_m": 117.0,
   "end_distance_m": 167.0,
   "midpoint_distance_m": 142.0,
   "start_elevation_m": 12.925896761606213,
   "end_elevation_m": 11.413739702138963,
   "start_xy": [
    288130.932049947,
    52938.255009997505
   ],
   "end_xy": [
    288162.63799364644,
    52901.36461555341
   ]
  },
  "min_100m": {
   "gradient_pct": 0.9827878230559577,
   "start_distance_m": 977.0,
   "end_distance_m": 1077.0,
   "midpoint_distance_m": 1027.0,
   "start_elevation_m": 84.85020979225007,
   "end_elevation_m": 85.83299761530603,
   "start_xy": [
    288727.0186892918,
    53174.368079447304
   ],
   "end_xy": [
    288821.5686903383,
    53205.20965450872
   ]
  }
 },
 "diagnostic_window_maxima": {
  "max_2m": {
   "gradient_pct": 37.571120575456796,
   "start_distance_m": 44.0,
   "end_distance_m": 46.0,
   "midpoint_distance_m": 45.0,
   "start_elevation_m": 7.586079387100096,
   "end_elevation_m": 8.337501798609232,
   "start_xy": [
    288067.8036004843,
    52961.81111735775
   ],
   "end_xy": [
    288069.72298308375,
    52961.249004951525
   ]
  },
  "max_3m": {
   "gradient_pct": 31.451412552945467,
   "start_distance_m": 43.0,
   "end_distance_m": 46.0,
   "midpoint_distance_m": 44.5,
   "start_elevation_m": 7.393959422020868,
   "end_elevation_m": 8.337501798609232,
   "start_xy": [
    288066.8441395499,
    52962.09295900722
   ],
   "end_xy": [
    288069.72298308375,
    52961.249004951525
   ]
  }
 },
 "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": 0.028,
   "windows_resited": [
    2.0,
    3.0,
    5.0,
    10.0,
    20.0,
    25.0,
    50.0,
    100.0
   ],
   "windows_unresolved": []
  },
  "placement_suppression": {
   "masked_fraction": 0.048,
   "windows_resited": [
    2.0,
    3.0
   ],
   "windows_unresolved": []
  },
  "texture_suppression": {
   "masked_fraction": 0.054,
   "windows_resited": [
    3.0,
    5.0,
    10.0
   ],
   "windows_unresolved": []
  },
  "texture_windows": {
   "rounds": 1,
   "windows_masked": [
    {
     "window_m": 10.0,
     "start_m": 90.0,
     "end_m": 100.0,
     "raw_pct": 26.31,
     "reason": "hump+short-step"
    },
    {
     "window_m": 5.0,
     "start_m": 92.0,
     "end_m": 97.0,
     "raw_pct": 34.02,
     "reason": "hump"
    }
   ],
   "advisory": [],
   "unresolved": []
  },
  "overhead_obstruction": {
   "obstruction_threshold_m": 2.0,
   "obstructed_fraction": 0.115,
   "obstruction_max_height_m": 17.62,
   "flagged_windows_m": []
  },
  "excluded_ranges_m": [
   [
    64.0,
    74.0
   ],
   [
    88.0,
    102.0
   ],
   [
    136.0,
    187.0
   ],
   [
    748.0,
    753.0
   ],
   [
    880.0,
    910.0
   ],
   [
    940.0,
    970.0
   ]
  ],
  "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/SX8550.tif",
   "data/cache/england/bulk_dtm_1m/SX9050.tif"
  ],
  "calculated_at": "2026-09-12T01:37:20+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": [
   "SX8550.tif",
   "SX9050.tif"
  ],
  "climb_origin": "discovered",
  "license": "ODbL-1.0",
  "license_url": "https://howsteep.org/licensing"
 },
 "area": {
  "place": "Dartmouth",
  "county": "Devon"
 }
}