{
 "ocl_version": "0.1.0",
 "name": "Discovered lane (52.1102, -3.2505)",
 "slug": "discovered-lane-52-1102-3-2505",
 "confidence": "B",
 "reported_claims": [],
 "ladder": [
  {
   "window_m": 2.0,
   "max_gradient_pct": 38.196157733150926,
   "diagnostic": true,
   "flags": [
    "texture_excluded",
    "canopy_or_structure"
   ],
   "start_distance_m": 208.0,
   "end_distance_m": 210.0,
   "start_elevation_m": 247.17206686876474,
   "end_elevation_m": 247.93599002342776,
   "min_gradient_pct": -16.84422753435797,
   "suppressed_max_gradient_pct": 44.972567905359995,
   "suppressed_location_m": [
    151.0,
    153.0
   ]
  },
  {
   "window_m": 3.0,
   "max_gradient_pct": 39.14212357832317,
   "diagnostic": true,
   "flags": [
    "texture_excluded",
    "canopy_or_structure"
   ],
   "start_distance_m": 207.0,
   "end_distance_m": 210.0,
   "start_elevation_m": 246.76172631607807,
   "end_elevation_m": 247.93599002342776,
   "min_gradient_pct": -15.787755215462576,
   "suppressed_max_gradient_pct": 41.87272961520895,
   "suppressed_location_m": [
    151.0,
    154.0
   ]
  },
  {
   "window_m": 5.0,
   "max_gradient_pct": 33.08951420103938,
   "diagnostic": false,
   "flags": [
    "texture_excluded",
    "canopy_or_structure"
   ],
   "start_distance_m": 205.0,
   "end_distance_m": 210.0,
   "start_elevation_m": 246.2815143133758,
   "end_elevation_m": 247.93599002342776,
   "min_gradient_pct": -8.756870380080386,
   "suppressed_max_gradient_pct": 39.53960299036794,
   "suppressed_location_m": [
    150.0,
    155.0
   ]
  },
  {
   "window_m": 10.0,
   "max_gradient_pct": 29.95077544264973,
   "diagnostic": false,
   "flags": [
    "texture_excluded",
    "canopy_or_structure"
   ],
   "start_distance_m": 200.0,
   "end_distance_m": 210.0,
   "start_elevation_m": 244.9409124791628,
   "end_elevation_m": 247.93599002342776,
   "min_gradient_pct": 2.5427293754131597,
   "suppressed_max_gradient_pct": 34.284866606882645,
   "suppressed_location_m": [
    147.0,
    157.0
   ]
  },
  {
   "window_m": 20.0,
   "max_gradient_pct": 22.70477641433672,
   "diagnostic": false,
   "flags": [
    "texture_excluded",
    "canopy_or_structure"
   ],
   "start_distance_m": 196.0,
   "end_distance_m": 216.0,
   "start_elevation_m": 244.42148861328224,
   "end_elevation_m": 248.96244389614958,
   "min_gradient_pct": 4.7909479712377845,
   "suppressed_max_gradient_pct": 27.405172607915347,
   "suppressed_location_m": [
    150.0,
    170.0
   ]
  },
  {
   "window_m": 25.0,
   "max_gradient_pct": 21.51269831277,
   "diagnostic": false,
   "flags": [
    "texture_excluded",
    "canopy_or_structure"
   ],
   "start_distance_m": 185.0,
   "end_distance_m": 210.0,
   "start_elevation_m": 242.55781544523526,
   "end_elevation_m": 247.93599002342776,
   "min_gradient_pct": 5.153310847621924,
   "suppressed_max_gradient_pct": 26.36974791350201,
   "suppressed_location_m": [
    147.0,
    172.0
   ]
  },
  {
   "window_m": 50.0,
   "max_gradient_pct": 18.377463182125553,
   "diagnostic": false,
   "flags": [
    "texture_excluded",
    "canopy_or_structure"
   ],
   "start_distance_m": 201.0,
   "end_distance_m": 251.0,
   "start_elevation_m": 245.12324908962955,
   "end_elevation_m": 254.31198068069233,
   "min_gradient_pct": 5.808263692847277,
   "suppressed_max_gradient_pct": 20.157577930783873,
   "suppressed_location_m": [
    141.0,
    191.0
   ]
  },
  {
   "window_m": 100.0,
   "max_gradient_pct": 16.11078037050484,
   "diagnostic": false,
   "flags": [
    "texture_excluded",
    "canopy_or_structure"
   ],
   "start_distance_m": 185.0,
   "end_distance_m": 285.0,
   "start_elevation_m": 242.55781544523526,
   "end_elevation_m": 258.6685958157401,
   "min_gradient_pct": 5.910199604745003,
   "suppressed_max_gradient_pct": 18.62696382456653,
   "suppressed_location_m": [
    142.0,
    242.0
   ]
  }
 ],
 "shape": {
  "ascent_concentration": 0.41,
  "concentration_window_frac": 0.25,
  "longest_pitch_10pct_m": 187.0,
  "shape_class": "sustained"
 },
 "length_m": 365.93330888249113,
 "start_elevation_m": 224.70553890991155,
 "end_elevation_m": 268.0476178925167,
 "endpoint_gain_m": 43.34207898260516,
 "overall_gradient_pct": 11.844256297675054,
 "accumulated_ascent_m": 43.9914814829157,
 "window_maxima": {
  "max_5m": {
   "gradient_pct": 33.08951420103938,
   "start_distance_m": 205.0,
   "end_distance_m": 210.0,
   "midpoint_distance_m": 207.5,
   "start_elevation_m": 246.2815143133758,
   "end_elevation_m": 247.93599002342776,
   "start_xy": [
    314462.4763274198,
    246539.9353482304
   ],
   "end_xy": [
    314460.4944104371,
    246544.479801318
   ]
  },
  "max_10m": {
   "gradient_pct": 29.95077544264973,
   "start_distance_m": 200.0,
   "end_distance_m": 210.0,
   "midpoint_distance_m": 205.0,
   "start_elevation_m": 244.9409124791628,
   "end_elevation_m": 247.93599002342776,
   "start_xy": [
    314463.56712884206,
    246535.06696324324
   ],
   "end_xy": [
    314460.4944104371,
    246544.479801318
   ]
  },
  "max_20m": {
   "gradient_pct": 22.70477641433672,
   "start_distance_m": 196.0,
   "end_distance_m": 216.0,
   "midpoint_distance_m": 206.0,
   "start_elevation_m": 244.42148861328224,
   "end_elevation_m": 248.96244389614958,
   "start_xy": [
    314462.6886533675,
    246531.1651891963
   ],
   "end_xy": [
    314457.3951025945,
    246549.61612033236
   ]
  },
  "max_25m": {
   "gradient_pct": 21.51269831277,
   "start_distance_m": 185.0,
   "end_distance_m": 210.0,
   "midpoint_distance_m": 197.5,
   "start_elevation_m": 242.55781544523526,
   "end_elevation_m": 247.93599002342776,
   "start_xy": [
    314461.0209200557,
    246520.35126766824
   ],
   "end_xy": [
    314460.4944104371,
    246544.479801318
   ]
  },
  "max_50m": {
   "gradient_pct": 18.377463182125553,
   "start_distance_m": 201.0,
   "end_distance_m": 251.0,
   "midpoint_distance_m": 226.0,
   "start_elevation_m": 245.12324908962955,
   "end_elevation_m": 254.31198068069233,
   "start_xy": [
    314463.47818758496,
    246536.06284628602
   ],
   "end_xy": [
    314456.362476847,
    246584.33825990284
   ]
  },
  "max_100m": {
   "gradient_pct": 16.11078037050484,
   "start_distance_m": 185.0,
   "end_distance_m": 285.0,
   "midpoint_distance_m": 235.0,
   "start_elevation_m": 242.55781544523526,
   "end_elevation_m": 258.6685958157401,
   "start_xy": [
    314461.0209200557,
    246520.35126766824
   ],
   "end_xy": [
    314444.9413682097,
    246616.17127146485
   ]
  }
 },
 "window_minima": {
  "min_5m": {
   "gradient_pct": -8.756870380080386,
   "start_distance_m": 176.0,
   "end_distance_m": 181.0,
   "midpoint_distance_m": 178.5,
   "start_elevation_m": 242.51713014720875,
   "end_elevation_m": 242.07928662820473,
   "start_xy": [
    314461.1199250654,
    246511.35181223988
   ],
   "end_xy": [
    314461.0649283209,
    246516.35150976654
   ]
  },
  "min_10m": {
   "gradient_pct": 2.5427293754131597,
   "start_distance_m": 175.0,
   "end_distance_m": 185.0,
   "midpoint_distance_m": 180.0,
   "start_elevation_m": 242.30354250769395,
   "end_elevation_m": 242.55781544523526,
   "start_xy": [
    314461.13092439994,
    246510.3518727344
   ],
   "end_xy": [
    314461.0209200557,
    246520.35126766824
   ]
  },
  "min_20m": {
   "gradient_pct": 4.7909479712377845,
   "start_distance_m": 16.0,
   "end_distance_m": 36.0,
   "midpoint_distance_m": 26.0,
   "start_elevation_m": 225.86825460932815,
   "end_elevation_m": 226.8264442035757,
   "start_xy": [
    314455.9270525387,
    246367.2513856729
   ],
   "end_xy": [
    314458.94286892336,
    246386.99564669564
   ]
  },
  "min_25m": {
   "gradient_pct": 5.153310847621924,
   "start_distance_m": 14.0,
   "end_distance_m": 39.0,
   "midpoint_distance_m": 26.5,
   "start_elevation_m": 225.73785404614483,
   "end_elevation_m": 227.0261817580503,
   "start_xy": [
    314455.6569600964,
    246365.26970707776
   ],
   "end_xy": [
    314459.98790535086,
    246389.80774488245
   ]
  },
  "min_50m": {
   "gradient_pct": 5.808263692847277,
   "start_distance_m": 50.0,
   "end_distance_m": 100.0,
   "midpoint_distance_m": 75.0,
   "start_elevation_m": 227.8345745027544,
   "end_elevation_m": 230.73870634917805,
   "start_xy": [
    314463.8190110679,
    246400.1190298007
   ],
   "end_xy": [
    314483.9641754118,
    246445.77188245632
   ]
  },
  "min_100m": {
   "gradient_pct": 5.910199604745003,
   "start_distance_m": 17.0,
   "end_distance_m": 117.0,
   "midpoint_distance_m": 67.0,
   "start_elevation_m": 225.91980005640048,
   "end_elevation_m": 231.82999966114548,
   "start_xy": [
    314456.0620318884,
    246368.2422340847
   ],
   "end_xy": [
    314486.62396488345,
    246462.50109739215
   ]
  }
 },
 "diagnostic_window_maxima": {
  "max_2m": {
   "gradient_pct": 38.196157733150926,
   "start_distance_m": 208.0,
   "end_distance_m": 210.0,
   "midpoint_distance_m": 209.0,
   "start_elevation_m": 247.17206686876474,
   "end_elevation_m": 247.93599002342776,
   "start_xy": [
    314461.5364552066,
    246542.772715372
   ],
   "end_xy": [
    314460.4944104371,
    246544.479801318
   ]
  },
  "max_3m": {
   "gradient_pct": 39.14212357832317,
   "start_distance_m": 207.0,
   "end_distance_m": 210.0,
   "midpoint_distance_m": 208.5,
   "start_elevation_m": 246.76172631607807,
   "end_elevation_m": 247.93599002342776,
   "start_xy": [
    314461.9619274719,
    246541.86782697626
   ],
   "end_xy": [
    314460.4944104371,
    246544.479801318
   ]
  }
 },
 "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": 0.082,
   "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": 147.0,
     "end_m": 172.0,
     "raw_pct": 26.37,
     "reason": "staircase"
    },
    {
     "window_m": 20.0,
     "start_m": 150.0,
     "end_m": 170.0,
     "raw_pct": 27.41,
     "reason": "staircase"
    }
   ],
   "advisory": [],
   "unresolved": []
  },
  "overhead_obstruction": {
   "obstruction_threshold_m": 2.0,
   "obstructed_fraction": 0.311,
   "obstruction_max_height_m": 22.32,
   "flagged_windows_m": [
    2,
    3,
    5,
    10,
    20,
    25,
    50,
    100
   ]
  },
  "excluded_ranges_m": [
   [
    145.0,
    174.0
   ]
  ],
  "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_16_314246_20210329dtm.tif"
  ],
  "calculated_at": "2026-09-12T01:43:29+00:00",
  "road_source": "OpenStreetMap (local PBF extract)",
  "road_attribution": "\u00a9 OpenStreetMap contributors, ODbL",
  "osm_pbf_path": "output/texture-uk-wales/batch-england-rchunk02.pbf",
  "osm_snapshot": "",
  "run_id": "texture-uk-wales-260912",
  "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_16_314246_20210329dtm.tif"
  ],
  "elevation_capture_dates": [
   "29-03-2021"
  ],
  "climb_origin": "discovered",
  "license": "ODbL-1.0",
  "license_url": "https://howsteep.org/licensing"
 },
 "area": {
  "place": "Llanbedr",
  "county": "Powys - Powys"
 }
}