{
 "ocl_version": "0.1.0",
 "name": "Discovered lane (52.7803, -3.8011)",
 "slug": "discovered-lane-52-7803-3-8011",
 "confidence": "B",
 "reported_claims": [],
 "ladder": [
  {
   "window_m": 2.0,
   "max_gradient_pct": 37.43761172901259,
   "diagnostic": true,
   "flags": [
    "structure_excluded",
    "texture_excluded",
    "texture_excluded"
   ],
   "start_distance_m": 680.0,
   "end_distance_m": 682.0,
   "start_elevation_m": 224.74394983840884,
   "end_elevation_m": 225.4927020729891,
   "min_gradient_pct": -26.08518018303414,
   "suppressed_max_gradient_pct": 68.39544154361477,
   "suppressed_location_m": [
    207.0,
    209.0
   ]
  },
  {
   "window_m": 3.0,
   "max_gradient_pct": 28.11133899503962,
   "diagnostic": true,
   "flags": [
    "structure_excluded",
    "texture_excluded",
    "texture_excluded"
   ],
   "start_distance_m": 680.0,
   "end_distance_m": 683.0,
   "start_elevation_m": 224.74394983840884,
   "end_elevation_m": 225.58729000826003,
   "min_gradient_pct": -21.738602643473353,
   "suppressed_max_gradient_pct": 57.53287145080984,
   "suppressed_location_m": [
    207.0,
    210.0
   ]
  },
  {
   "window_m": 5.0,
   "max_gradient_pct": 24.107264266302195,
   "diagnostic": false,
   "flags": [
    "structure_excluded",
    "texture_excluded",
    "texture_excluded"
   ],
   "start_distance_m": 863.0,
   "end_distance_m": 868.0,
   "start_elevation_m": 247.9047559544321,
   "end_elevation_m": 249.1101191677472,
   "min_gradient_pct": -15.30421391339587,
   "suppressed_max_gradient_pct": 38.61373423931809,
   "suppressed_location_m": [
    206.0,
    211.0
   ]
  },
  {
   "window_m": 10.0,
   "max_gradient_pct": 20.162566634632526,
   "diagnostic": false,
   "flags": [
    "texture_excluded"
   ],
   "start_distance_m": 857.0,
   "end_distance_m": 867.0,
   "start_elevation_m": 246.9100327060744,
   "end_elevation_m": 248.92628936953764,
   "min_gradient_pct": -7.4478744035906175,
   "suppressed_max_gradient_pct": 26.224761660845957,
   "suppressed_location_m": [
    615.0,
    625.0
   ]
  },
  {
   "window_m": 20.0,
   "max_gradient_pct": 16.524185634267496,
   "diagnostic": false,
   "flags": [
    "texture_excluded",
    "texture_excluded",
    "texture_excluded",
    "canopy_or_structure"
   ],
   "start_distance_m": 588.0,
   "end_distance_m": 608.0,
   "start_elevation_m": 210.9303865987053,
   "end_elevation_m": 214.2352237255588,
   "min_gradient_pct": -4.340163413477569,
   "suppressed_max_gradient_pct": 24.743234236534164,
   "suppressed_location_m": [
    615.0,
    635.0
   ]
  },
  {
   "window_m": 25.0,
   "max_gradient_pct": 16.036282267756405,
   "diagnostic": false,
   "flags": [
    "texture_excluded",
    "texture_excluded",
    "texture_excluded",
    "canopy_or_structure"
   ],
   "start_distance_m": 1432.0,
   "end_distance_m": 1457.0,
   "start_elevation_m": 289.5921107819726,
   "end_elevation_m": 293.6011813489117,
   "min_gradient_pct": -3.948997525593768,
   "suppressed_max_gradient_pct": 23.97364593584257,
   "suppressed_location_m": [
    611.0,
    636.0
   ]
  },
  {
   "window_m": 50.0,
   "max_gradient_pct": 14.927535994121627,
   "diagnostic": false,
   "flags": [
    "texture_excluded",
    "texture_excluded",
    "canopy_or_structure"
   ],
   "start_distance_m": 1420.0,
   "end_distance_m": 1470.0,
   "start_elevation_m": 287.94410793781503,
   "end_elevation_m": 295.40787593487585,
   "min_gradient_pct": -2.1008529474378292,
   "suppressed_max_gradient_pct": 19.893041352231194,
   "suppressed_location_m": [
    586.0,
    636.0
   ]
  },
  {
   "window_m": 100.0,
   "max_gradient_pct": 13.42511142683253,
   "diagnostic": false,
   "flags": [
    "texture_excluded",
    "texture_excluded",
    "canopy_or_structure"
   ],
   "start_distance_m": 1402.0,
   "end_distance_m": 1502.0,
   "start_elevation_m": 285.94097681820216,
   "end_elevation_m": 299.3660882450347,
   "min_gradient_pct": 0.5802707844056272,
   "suppressed_max_gradient_pct": 15.361686353558438,
   "suppressed_location_m": [
    582.0,
    682.0
   ]
  }
 ],
 "shape": {
  "ascent_concentration": 0.368,
  "concentration_window_frac": 0.25,
  "longest_pitch_10pct_m": 111.0,
  "shape_class": "sustained"
 },
 "length_m": 2908.9204151937893,
 "start_elevation_m": 170.97701189941375,
 "end_elevation_m": 384.85509903466794,
 "endpoint_gain_m": 213.8780871352542,
 "overall_gradient_pct": 7.35249015470249,
 "accumulated_ascent_m": 220.77848170986218,
 "window_maxima": {
  "max_5m": {
   "gradient_pct": 24.107264266302195,
   "start_distance_m": 863.0,
   "end_distance_m": 868.0,
   "midpoint_distance_m": 865.5,
   "start_elevation_m": 247.9047559544321,
   "end_elevation_m": 249.1101191677472,
   "start_xy": [
    278683.89854745637,
    321832.28859859396
   ],
   "end_xy": [
    278678.9716836159,
    321831.43653742224
   ]
  },
  "max_10m": {
   "gradient_pct": 20.162566634632526,
   "start_distance_m": 857.0,
   "end_distance_m": 867.0,
   "midpoint_distance_m": 862.0,
   "start_elevation_m": 246.9100327060744,
   "end_elevation_m": 248.92628936953764,
   "start_xy": [
    278689.8107846713,
    321833.3110663226
   ],
   "end_xy": [
    278679.9570437418,
    321831.6070227778
   ]
  },
  "max_20m": {
   "gradient_pct": 16.524185634267496,
   "start_distance_m": 588.0,
   "end_distance_m": 608.0,
   "midpoint_distance_m": 598.0,
   "start_elevation_m": 210.9303865987053,
   "end_elevation_m": 214.2352237255588,
   "start_xy": [
    278766.44092604326,
    321673.6509184699
   ],
   "end_xy": [
    278766.9189178339,
    321693.6452048367
   ]
  },
  "max_25m": {
   "gradient_pct": 16.036282267756405,
   "start_distance_m": 1432.0,
   "end_distance_m": 1457.0,
   "midpoint_distance_m": 1444.5,
   "start_elevation_m": 289.5921107819726,
   "end_elevation_m": 293.6011813489117,
   "start_xy": [
    278563.1663746163,
    322257.60078967304
   ],
   "end_xy": [
    278565.8524437267,
    322282.2043559627
   ]
  },
  "max_50m": {
   "gradient_pct": 14.927535994121627,
   "start_distance_m": 1420.0,
   "end_distance_m": 1470.0,
   "midpoint_distance_m": 1445.0,
   "start_elevation_m": 287.94410793781503,
   "end_elevation_m": 295.40787593487585,
   "start_xy": [
    278559.9922722475,
    322246.0355031312
   ],
   "end_xy": [
    278562.1143547395,
    322294.6049749387
   ]
  },
  "max_100m": {
   "gradient_pct": 13.42511142683253,
   "start_distance_m": 1402.0,
   "end_distance_m": 1502.0,
   "midpoint_distance_m": 1452.0,
   "start_elevation_m": 285.94097681820216,
   "end_elevation_m": 299.3660882450347,
   "start_xy": [
    278553.6485582886,
    322229.1914184809
   ],
   "end_xy": [
    278551.82773375657,
    322324.8574318519
   ]
  }
 },
 "window_minima": {
  "min_5m": {
   "gradient_pct": -15.30421391339587,
   "start_distance_m": 201.0,
   "end_distance_m": 206.0,
   "midpoint_distance_m": 203.5,
   "start_elevation_m": 183.23688497558857,
   "end_elevation_m": 182.47167427991877,
   "start_xy": [
    278607.4553233838,
    321345.5344656986
   ],
   "end_xy": [
    278604.38286091463,
    321341.5915813174
   ]
  },
  "min_10m": {
   "gradient_pct": -7.4478744035906175,
   "start_distance_m": 195.0,
   "end_distance_m": 205.0,
   "midpoint_distance_m": 200.0,
   "start_elevation_m": 183.29294395968344,
   "end_elevation_m": 182.54815651932438,
   "start_xy": [
    278611.13137761765,
    321350.27647110773
   ],
   "end_xy": [
    278605.0042718806,
    321342.37339932413
   ]
  },
  "min_20m": {
   "gradient_pct": -4.340163413477569,
   "start_distance_m": 1175.0,
   "end_distance_m": 1195.0,
   "midpoint_distance_m": 1185.0,
   "start_elevation_m": 274.95285986246927,
   "end_elevation_m": 274.08482717977375,
   "start_xy": [
    278575.2257444308,
    322043.25989807135
   ],
   "end_xy": [
    278559.7091561666,
    322055.86745281355
   ]
  },
  "min_25m": {
   "gradient_pct": -3.948997525593768,
   "start_distance_m": 1175.0,
   "end_distance_m": 1200.0,
   "midpoint_distance_m": 1187.5,
   "start_elevation_m": 274.95285986246927,
   "end_elevation_m": 273.9656104810708,
   "start_xy": [
    278575.2257444308,
    322043.25989807135
   ],
   "end_xy": [
    278555.76068814646,
    322058.934958833
   ]
  },
  "min_50m": {
   "gradient_pct": -2.1008529474378292,
   "start_distance_m": 1175.0,
   "end_distance_m": 1225.0,
   "midpoint_distance_m": 1200.0,
   "start_elevation_m": 274.95285986246927,
   "end_elevation_m": 273.90243338875035,
   "start_xy": [
    278575.2257444308,
    322043.25989807135
   ],
   "end_xy": [
    278536.0187031895,
    322074.2729471413
   ]
  },
  "min_100m": {
   "gradient_pct": 0.5802707844056272,
   "start_distance_m": 2612.0,
   "end_distance_m": 2712.0,
   "midpoint_distance_m": 2662.0,
   "start_elevation_m": 378.4447899284169,
   "end_elevation_m": 379.02506071282255,
   "start_xy": [
    278292.53132780007,
    323303.5843019022
   ],
   "end_xy": [
    278315.35867149883,
    323396.92241087125
   ]
  }
 },
 "diagnostic_window_maxima": {
  "max_2m": {
   "gradient_pct": 37.43761172901259,
   "start_distance_m": 680.0,
   "end_distance_m": 682.0,
   "midpoint_distance_m": 681.0,
   "start_elevation_m": 224.74394983840884,
   "end_elevation_m": 225.4927020729891,
   "start_xy": [
    278768.7306872435,
    321765.61112172005
   ],
   "end_xy": [
    278769.39692558383,
    321767.49467581254
   ]
  },
  "max_3m": {
   "gradient_pct": 28.11133899503962,
   "start_distance_m": 680.0,
   "end_distance_m": 683.0,
   "midpoint_distance_m": 681.5,
   "start_elevation_m": 224.74394983840884,
   "end_elevation_m": 225.58729000826003,
   "start_xy": [
    278768.7306872435,
    321765.61112172005
   ],
   "end_xy": [
    278769.75898569083,
    321768.42683056305
   ]
  }
 },
 "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": 0.004,
   "windows_resited": [
    2.0,
    3.0,
    5.0
   ],
   "windows_unresolved": []
  },
  "texture_suppression": {
   "masked_fraction": 0.035,
   "windows_resited": [
    20.0,
    25.0,
    50.0
   ],
   "windows_unresolved": []
  },
  "texture_windows": {
   "rounds": 3,
   "windows_masked": [
    {
     "window_m": 25.0,
     "start_m": 611.0,
     "end_m": 636.0,
     "raw_pct": 23.97,
     "reason": "hump"
    },
    {
     "window_m": 20.0,
     "start_m": 615.0,
     "end_m": 635.0,
     "raw_pct": 24.74,
     "reason": "hump"
    },
    {
     "window_m": 10.0,
     "start_m": 615.0,
     "end_m": 625.0,
     "raw_pct": 26.22,
     "reason": "hump"
    },
    {
     "window_m": 25.0,
     "start_m": 741.0,
     "end_m": 766.0,
     "raw_pct": 17.74,
     "reason": "hump"
    },
    {
     "window_m": 25.0,
     "start_m": 822.0,
     "end_m": 847.0,
     "raw_pct": 16.95,
     "reason": "mask-edge"
    },
    {
     "window_m": 20.0,
     "start_m": 827.0,
     "end_m": 847.0,
     "raw_pct": 17.66,
     "reason": "mask-edge"
    }
   ],
   "advisory": [],
   "unresolved": []
  },
  "overhead_obstruction": {
   "obstruction_threshold_m": 2.0,
   "obstructed_fraction": 0.173,
   "obstruction_max_height_m": 18.31,
   "flagged_windows_m": [
    20,
    25,
    50,
    100
   ]
  },
  "excluded_ranges_m": [
   [
    205.0,
    211.0
   ],
   [
    609.0,
    638.0
   ],
   [
    739.0,
    768.0
   ],
   [
    820.0,
    853.0
   ]
  ],
  "review": [],
  "extent": []
 },
 "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/wales/dtm_1m/wg_del_22_278321_20220114dtm.tif",
   "data/cache/wales/dtm_1m/wg_del_22_278322_20220114dtm.tif",
   "data/cache/wales/dtm_1m/wg_del_22_278323_20220114dtm.tif"
  ],
  "calculated_at": "2026-09-12T00:08:47+00:00",
  "road_source": "OpenStreetMap (local PBF extract)",
  "road_attribution": "\u00a9 OpenStreetMap contributors, ODbL",
  "osm_pbf_path": "output/texture-uk-wales/batch-england-rchunk04.pbf",
  "osm_snapshot": "",
  "run_id": "texture-uk-wales-260911",
  "elevation_provider": "Welsh Government",
  "elevation_dataset": "Welsh Government LiDAR 1m DTM (2020-2023)",
  "elevation_licence": "Open Government Licence v3 \u2014 \u00a9 Crown copyright Welsh Government",
  "elevation_catalogue_layer": "geonode:welsh_government_lidar_tile_catalogue_2020_2023",
  "elevation_tile_ids": [
   "wg_del_22_278321_20220114dtm.tif",
   "wg_del_22_278322_20220114dtm.tif",
   "wg_del_22_278323_20220114dtm.tif"
  ],
  "elevation_capture_dates": [
   "14-01-2022"
  ],
  "climb_origin": "discovered",
  "license": "ODbL-1.0",
  "license_url": "https://howsteep.org/licensing"
 },
 "area": {
  "place": "Bryn-coed-Ifor",
  "county": "Gwynedd - Gwynedd"
 }
}