{
 "ocl_version": "0.1.0",
 "name": "Discovered lane (52.9867, -4.0722)",
 "slug": "discovered-lane-52-9867-4-0722",
 "confidence": "B",
 "reported_claims": [],
 "ladder": [
  {
   "window_m": 2.0,
   "max_gradient_pct": 28.35653962369733,
   "diagnostic": true,
   "flags": [
    "structure_excluded",
    "texture_excluded",
    "canopy_or_structure"
   ],
   "start_distance_m": 608.0,
   "end_distance_m": 610.0,
   "start_elevation_m": 55.92193788333114,
   "end_elevation_m": 56.489068675805086,
   "min_gradient_pct": -36.890824339248596,
   "suppressed_max_gradient_pct": 91.34880456782693,
   "suppressed_location_m": [
    16.0,
    18.0
   ]
  },
  {
   "window_m": 3.0,
   "max_gradient_pct": 27.95852859405367,
   "diagnostic": true,
   "flags": [
    "structure_excluded",
    "canopy_or_structure"
   ],
   "start_distance_m": 608.0,
   "end_distance_m": 611.0,
   "start_elevation_m": 55.92193788333114,
   "end_elevation_m": 56.76069374115275,
   "min_gradient_pct": -31.39754500263277,
   "suppressed_max_gradient_pct": 84.18852380621627,
   "suppressed_location_m": [
    16.0,
    19.0
   ]
  },
  {
   "window_m": 5.0,
   "max_gradient_pct": 27.053558299817126,
   "diagnostic": false,
   "flags": [
    "structure_excluded",
    "canopy_or_structure"
   ],
   "start_distance_m": 608.0,
   "end_distance_m": 613.0,
   "start_elevation_m": 55.92193788333114,
   "end_elevation_m": 57.274615798321996,
   "min_gradient_pct": -21.131067061536584,
   "suppressed_max_gradient_pct": 57.662063259126626,
   "suppressed_location_m": [
    15.0,
    20.0
   ]
  },
  {
   "window_m": 10.0,
   "max_gradient_pct": 22.494734475383567,
   "diagnostic": false,
   "flags": [
    "structure_excluded",
    "texture_excluded",
    "canopy_or_structure"
   ],
   "start_distance_m": 603.0,
   "end_distance_m": 613.0,
   "start_elevation_m": 55.02514235078364,
   "end_elevation_m": 57.274615798321996,
   "min_gradient_pct": -18.608867615598434,
   "suppressed_max_gradient_pct": 35.487159957852086,
   "suppressed_location_m": [
    15.0,
    25.0
   ]
  },
  {
   "window_m": 20.0,
   "max_gradient_pct": 20.152621322347954,
   "diagnostic": false,
   "flags": [
    "structure_excluded",
    "texture_excluded",
    "canopy_or_structure"
   ],
   "start_distance_m": 593.0,
   "end_distance_m": 613.0,
   "start_elevation_m": 53.244091533852405,
   "end_elevation_m": 57.274615798321996,
   "min_gradient_pct": -15.228293157220545,
   "suppressed_max_gradient_pct": 24.64988312905941,
   "suppressed_location_m": [
    15.0,
    35.0
   ]
  },
  {
   "window_m": 25.0,
   "max_gradient_pct": 19.63592408257807,
   "diagnostic": false,
   "flags": [
    "structure_excluded",
    "texture_excluded",
    "canopy_or_structure"
   ],
   "start_distance_m": 591.0,
   "end_distance_m": 616.0,
   "start_elevation_m": 52.87963836407061,
   "end_elevation_m": 57.788619384715126,
   "min_gradient_pct": -15.262977304655779,
   "suppressed_max_gradient_pct": 21.78468462220457,
   "suppressed_location_m": [
    15.0,
    40.0
   ]
  },
  {
   "window_m": 50.0,
   "max_gradient_pct": 16.3076055073403,
   "diagnostic": false,
   "flags": [
    "texture_excluded",
    "canopy_or_structure"
   ],
   "start_distance_m": 579.0,
   "end_distance_m": 629.0,
   "start_elevation_m": 51.169590874050556,
   "end_elevation_m": 59.323393627720705,
   "min_gradient_pct": -13.124284809418803,
   "suppressed_max_gradient_pct": 18.246780234829643,
   "suppressed_location_m": [
    297.0,
    347.0
   ]
  },
  {
   "window_m": 100.0,
   "max_gradient_pct": 13.217376416056887,
   "diagnostic": false,
   "flags": [
    "texture_excluded",
    "canopy_or_structure"
   ],
   "start_distance_m": 549.0,
   "end_distance_m": 649.0,
   "start_elevation_m": 49.09111935363801,
   "end_elevation_m": 62.30849576969489,
   "min_gradient_pct": -5.2710970220945335,
   "suppressed_max_gradient_pct": 16.13449299047639,
   "suppressed_location_m": [
    285.0,
    385.0
   ]
  }
 ],
 "shape": {
  "ascent_concentration": 0.376,
  "concentration_window_frac": 0.25,
  "longest_pitch_10pct_m": 121.0,
  "shape_class": "sustained"
 },
 "length_m": 667.820670479687,
 "start_elevation_m": 19.529461674308486,
 "end_elevation_m": 63.017192997053925,
 "endpoint_gain_m": 43.48773132274544,
 "overall_gradient_pct": 6.511887583759389,
 "accumulated_ascent_m": 57.28757037678902,
 "window_maxima": {
  "max_5m": {
   "gradient_pct": 27.053558299817126,
   "start_distance_m": 608.0,
   "end_distance_m": 613.0,
   "midpoint_distance_m": 610.5,
   "start_elevation_m": 55.92193788333114,
   "end_elevation_m": 57.274615798321996,
   "start_xy": [
    260739.52105405714,
    345656.0843468956
   ],
   "end_xy": [
    260738.9278735235,
    345661.04808439047
   ]
  },
  "max_10m": {
   "gradient_pct": 22.494734475383567,
   "start_distance_m": 603.0,
   "end_distance_m": 613.0,
   "midpoint_distance_m": 608.0,
   "start_elevation_m": 55.02514235078364,
   "end_elevation_m": 57.274615798321996,
   "start_xy": [
    260740.13209809863,
    345651.1218252965
   ],
   "end_xy": [
    260738.9278735235,
    345661.04808439047
   ]
  },
  "max_20m": {
   "gradient_pct": 20.152621322347954,
   "start_distance_m": 593.0,
   "end_distance_m": 613.0,
   "midpoint_distance_m": 603.0,
   "start_elevation_m": 53.244091533852405,
   "end_elevation_m": 57.274615798321996,
   "start_xy": [
    260741.3541046588,
    345641.1967719549
   ],
   "end_xy": [
    260738.9278735235,
    345661.04808439047
   ]
  },
  "max_25m": {
   "gradient_pct": 19.63592408257807,
   "start_distance_m": 591.0,
   "end_distance_m": 616.0,
   "midpoint_distance_m": 603.5,
   "start_elevation_m": 52.87963836407061,
   "end_elevation_m": 57.788619384715126,
   "start_xy": [
    260741.59811195175,
    345639.2117126545
   ],
   "end_xy": [
    260739.02216464188,
    345664.0454587191
   ]
  },
  "max_50m": {
   "gradient_pct": 16.3076055073403,
   "start_distance_m": 579.0,
   "end_distance_m": 629.0,
   "midpoint_distance_m": 604.0,
   "start_elevation_m": 51.169590874050556,
   "end_elevation_m": 59.323393627720705,
   "start_xy": [
    260744.369178306,
    345627.5679679877
   ],
   "end_xy": [
    260739.65314876198,
    345677.03013496404
   ]
  },
  "max_100m": {
   "gradient_pct": 13.217376416056887,
   "start_distance_m": 549.0,
   "end_distance_m": 649.0,
   "midpoint_distance_m": 599.0,
   "start_elevation_m": 49.09111935363801,
   "end_elevation_m": 62.30849576969489,
   "start_xy": [
    260756.835383372,
    345600.39642005233
   ],
   "end_xy": [
    260739.41531575983,
    345696.99783673993
   ]
  }
 },
 "window_minima": {
  "min_5m": {
   "gradient_pct": -21.131067061536584,
   "start_distance_m": 6.0,
   "end_distance_m": 11.0,
   "midpoint_distance_m": 8.5,
   "start_elevation_m": 19.749728453797175,
   "end_elevation_m": 18.693175100720346,
   "start_xy": [
    261068.04800034917,
    345248.23799993616
   ],
   "end_xy": [
    261063.129678105,
    345249.1380588832
   ]
  },
  "min_10m": {
   "gradient_pct": -18.608867615598434,
   "start_distance_m": 157.0,
   "end_distance_m": 167.0,
   "midpoint_distance_m": 162.0,
   "start_elevation_m": 20.494721990328834,
   "end_elevation_m": 18.63383522876899,
   "start_xy": [
    260933.8423621657,
    345275.20164004655
   ],
   "end_xy": [
    260929.15753349545,
    345284.0253828801
   ]
  },
  "min_20m": {
   "gradient_pct": -15.228293157220545,
   "start_distance_m": 147.0,
   "end_distance_m": 167.0,
   "midpoint_distance_m": 157.0,
   "start_elevation_m": 21.6794938602131,
   "end_elevation_m": 18.63383522876899,
   "start_xy": [
    260938.99658102135,
    345266.6322758538
   ],
   "end_xy": [
    260929.15753349545,
    345284.0253828801
   ]
  },
  "min_25m": {
   "gradient_pct": -15.262977304655779,
   "start_distance_m": 142.0,
   "end_distance_m": 167.0,
   "midpoint_distance_m": 154.5,
   "start_elevation_m": 22.449579554932935,
   "end_elevation_m": 18.63383522876899,
   "start_xy": [
    260941.57459680646,
    345262.3481386374
   ],
   "end_xy": [
    260929.15753349545,
    345284.0253828801
   ]
  },
  "min_50m": {
   "gradient_pct": -13.124284809418803,
   "start_distance_m": 127.0,
   "end_distance_m": 177.0,
   "midpoint_distance_m": 152.0,
   "start_elevation_m": 24.16164183966925,
   "end_elevation_m": 17.59949943495985,
   "start_xy": [
    260954.24886575982,
    345256.7019725315
   ],
   "end_xy": [
    260924.82629906267,
    345293.0387286762
   ]
  },
  "min_100m": {
   "gradient_pct": -5.2710970220945335,
   "start_distance_m": 128.0,
   "end_distance_m": 228.0,
   "midpoint_distance_m": 178.0,
   "start_elevation_m": 24.10436007792802,
   "end_elevation_m": 18.833263055833488,
   "start_xy": [
    260953.26500596307,
    345256.52303156647
   ],
   "end_xy": [
    260890.4261405724,
    345329.3418266075
   ]
  }
 },
 "diagnostic_window_maxima": {
  "max_2m": {
   "gradient_pct": 28.35653962369733,
   "start_distance_m": 608.0,
   "end_distance_m": 610.0,
   "midpoint_distance_m": 609.0,
   "start_elevation_m": 55.92193788333114,
   "end_elevation_m": 56.489068675805086,
   "start_xy": [
    260739.52105405714,
    345656.0843468956
   ],
   "end_xy": [
    260739.27688568187,
    345658.06938632426
   ]
  },
  "max_3m": {
   "gradient_pct": 27.95852859405367,
   "start_distance_m": 608.0,
   "end_distance_m": 611.0,
   "midpoint_distance_m": 609.5,
   "start_elevation_m": 55.92193788333114,
   "end_elevation_m": 56.76069374115275,
   "start_xy": [
    260739.52105405714,
    345656.0843468956
   ],
   "end_xy": [
    260739.15409883147,
    345659.0618193377
   ]
  }
 },
 "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": 0.064,
   "windows_resited": [
    2.0,
    3.0,
    5.0,
    10.0,
    20.0,
    25.0
   ],
   "windows_unresolved": []
  },
  "texture_suppression": {
   "masked_fraction": 0.147,
   "windows_resited": [
    2.0,
    10.0,
    20.0,
    25.0,
    50.0,
    100.0
   ],
   "windows_unresolved": []
  },
  "texture_windows": {
   "rounds": 1,
   "windows_masked": [
    {
     "window_m": 25.0,
     "start_m": 297.0,
     "end_m": 322.0,
     "raw_pct": 20.29,
     "reason": "hump"
    },
    {
     "window_m": 20.0,
     "start_m": 495.0,
     "end_m": 515.0,
     "raw_pct": 21.08,
     "reason": "hump"
    },
    {
     "window_m": 10.0,
     "start_m": 504.0,
     "end_m": 514.0,
     "raw_pct": 23.83,
     "reason": "hump"
    }
   ],
   "advisory": [],
   "unresolved": []
  },
  "overhead_obstruction": {
   "obstruction_threshold_m": 2.0,
   "obstructed_fraction": 0.72,
   "obstruction_max_height_m": 23.09,
   "flagged_windows_m": [
    2,
    3,
    5,
    10,
    20,
    25,
    50,
    100
   ]
  },
  "excluded_ranges_m": [
   [
    0.0,
    42.0
   ],
   [
    295.0,
    324.0
   ],
   [
    493.0,
    517.0
   ]
  ],
  "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/wales/dtm_1m/wg_del_20_260345_20220111dtm.tif",
   "data/cache/wales/dtm_1m/wg_del_20_261345_20220111dtm.tif"
  ],
  "calculated_at": "2026-09-12T00:09:24+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_20_260345_20220111dtm.tif",
   "wg_del_20_261345_20220111dtm.tif"
  ],
  "elevation_capture_dates": [
   "11-01-2022"
  ],
  "climb_origin": "discovered",
  "license": "ODbL-1.0",
  "license_url": "https://howsteep.org/licensing"
 },
 "area": {
  "place": "Nantmor",
  "county": "Gwynedd - Gwynedd"
 }
}