{
 "ocl_version": "0.1.0",
 "name": "Discovered lane (51.9055, -4.3134)",
 "slug": "discovered-lane-51-9055-4-3134",
 "confidence": "B",
 "reported_claims": [],
 "ladder": [
  {
   "window_m": 2.0,
   "max_gradient_pct": 35.2532120018779,
   "diagnostic": true,
   "flags": [
    "no_bench_excluded",
    "canopy_or_structure"
   ],
   "start_distance_m": 127.0,
   "end_distance_m": 129.0,
   "start_elevation_m": 63.781765109119036,
   "end_elevation_m": 64.4868293491566,
   "min_gradient_pct": -14.020126790746446,
   "suppressed_max_gradient_pct": 45.70590930616163,
   "suppressed_location_m": [
    100.0,
    102.0
   ]
  },
  {
   "window_m": 3.0,
   "max_gradient_pct": 33.01860816395532,
   "diagnostic": true,
   "flags": [
    "no_bench_excluded",
    "canopy_or_structure"
   ],
   "start_distance_m": 126.0,
   "end_distance_m": 129.0,
   "start_elevation_m": 63.496271104237934,
   "end_elevation_m": 64.4868293491566,
   "min_gradient_pct": -13.023899969427077,
   "suppressed_max_gradient_pct": 43.42294591512802,
   "suppressed_location_m": [
    99.0,
    102.0
   ]
  },
  {
   "window_m": 5.0,
   "max_gradient_pct": 29.007003547158092,
   "diagnostic": false,
   "flags": [
    "no_bench_excluded",
    "canopy_or_structure"
   ],
   "start_distance_m": 124.0,
   "end_distance_m": 129.0,
   "start_elevation_m": 63.03647917179869,
   "end_elevation_m": 64.4868293491566,
   "min_gradient_pct": -11.767316659084486,
   "suppressed_max_gradient_pct": 35.664939516621246,
   "suppressed_location_m": [
    97.0,
    102.0
   ]
  },
  {
   "window_m": 10.0,
   "max_gradient_pct": 26.61794903100727,
   "diagnostic": false,
   "flags": [
    "no_bench_excluded",
    "canopy_or_structure"
   ],
   "start_distance_m": 125.0,
   "end_distance_m": 135.0,
   "start_elevation_m": 63.23312931544061,
   "end_elevation_m": 65.89492421854133,
   "min_gradient_pct": -9.904397717777442,
   "suppressed_max_gradient_pct": 28.484812997284195,
   "suppressed_location_m": [
    93.0,
    103.0
   ]
  },
  {
   "window_m": 20.0,
   "max_gradient_pct": 24.4771550234109,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 262.0,
   "end_distance_m": 282.0,
   "start_elevation_m": 87.38686253447285,
   "end_elevation_m": 92.28229353915503,
   "min_gradient_pct": -8.554470193939139
  },
  {
   "window_m": 25.0,
   "max_gradient_pct": 23.29050882778125,
   "diagnostic": false,
   "flags": [
    "no_bench_excluded",
    "canopy_or_structure"
   ],
   "start_distance_m": 125.0,
   "end_distance_m": 150.0,
   "start_elevation_m": 63.23312931544061,
   "end_elevation_m": 69.05575652238592,
   "min_gradient_pct": -7.458775059176162,
   "suppressed_max_gradient_pct": 23.456506320808415,
   "suppressed_location_m": [
    93.0,
    118.0
   ]
  },
  {
   "window_m": 50.0,
   "max_gradient_pct": 21.61115310986025,
   "diagnostic": false,
   "flags": [
    "no_bench_excluded",
    "canopy_or_structure"
   ],
   "start_distance_m": 124.0,
   "end_distance_m": 174.0,
   "start_elevation_m": 63.03647917179869,
   "end_elevation_m": 73.84205572672882,
   "min_gradient_pct": -5.249339858164348,
   "suppressed_max_gradient_pct": 22.58714125030326,
   "suppressed_location_m": [
    91.0,
    141.0
   ]
  },
  {
   "window_m": 100.0,
   "max_gradient_pct": 19.73232691588027,
   "diagnostic": false,
   "flags": [
    "no_bench_excluded",
    "canopy_or_structure"
   ],
   "start_distance_m": 114.0,
   "end_distance_m": 214.0,
   "start_elevation_m": 61.102394867973,
   "end_elevation_m": 80.83472178385327,
   "min_gradient_pct": -0.1765152201098772,
   "suppressed_max_gradient_pct": 21.012322361852192,
   "suppressed_location_m": [
    87.0,
    187.0
   ]
  }
 ],
 "shape": {
  "ascent_concentration": 0.412,
  "concentration_window_frac": 0.25,
  "longest_pitch_10pct_m": 224.0,
  "shape_class": "sustained"
 },
 "length_m": 675.7825996144666,
 "start_elevation_m": 42.82335389159353,
 "end_elevation_m": 114.45177803039536,
 "endpoint_gain_m": 71.62842413880183,
 "overall_gradient_pct": 10.599329455902799,
 "accumulated_ascent_m": 76.563066826017,
 "window_maxima": {
  "max_5m": {
   "gradient_pct": 29.007003547158092,
   "start_distance_m": 124.0,
   "end_distance_m": 129.0,
   "midpoint_distance_m": 126.5,
   "start_elevation_m": 63.03647917179869,
   "end_elevation_m": 64.4868293491566,
   "start_xy": [
    240911.30545401853,
    225619.08839176042
   ],
   "end_xy": [
    240910.49783136038,
    225624.02273524686
   ]
  },
  "max_10m": {
   "gradient_pct": 26.61794903100727,
   "start_distance_m": 125.0,
   "end_distance_m": 135.0,
   "midpoint_distance_m": 130.0,
   "start_elevation_m": 63.23312931544061,
   "end_elevation_m": 65.89492421854133,
   "start_xy": [
    240911.1439294869,
    225620.0752604577
   ],
   "end_xy": [
    240909.52868417063,
    225629.94394743058
   ]
  },
  "max_20m": {
   "gradient_pct": 24.4771550234109,
   "start_distance_m": 262.0,
   "end_distance_m": 282.0,
   "midpoint_distance_m": 272.0,
   "start_elevation_m": 87.38686253447285,
   "end_elevation_m": 92.28229353915503,
   "start_xy": [
    240858.13628791957,
    225698.8831319287
   ],
   "end_xy": [
    240859.3664629207,
    225678.9210010438
   ]
  },
  "max_25m": {
   "gradient_pct": 23.29050882778125,
   "start_distance_m": 125.0,
   "end_distance_m": 150.0,
   "midpoint_distance_m": 137.5,
   "start_elevation_m": 63.23312931544061,
   "end_elevation_m": 69.05575652238592,
   "start_xy": [
    240911.1439294869,
    225620.0752604577
   ],
   "end_xy": [
    240907.10581619624,
    225644.74697788985
   ]
  },
  "max_50m": {
   "gradient_pct": 21.61115310986025,
   "start_distance_m": 124.0,
   "end_distance_m": 174.0,
   "midpoint_distance_m": 149.0,
   "start_elevation_m": 63.03647917179869,
   "end_elevation_m": 73.84205572672882,
   "start_xy": [
    240911.30545401853,
    225619.08839176042
   ],
   "end_xy": [
    240903.22922743723,
    225668.43182662473
   ]
  },
  "max_100m": {
   "gradient_pct": 19.73232691588027,
   "start_distance_m": 114.0,
   "end_distance_m": 214.0,
   "midpoint_distance_m": 164.0,
   "start_elevation_m": 61.102394867973,
   "end_elevation_m": 80.83472178385327,
   "start_xy": [
    240911.32459787492,
    225609.0986547044
   ],
   "end_xy": [
    240885.3409144612,
    225703.9222420619
   ]
  }
 },
 "window_minima": {
  "min_5m": {
   "gradient_pct": -11.767316659084486,
   "start_distance_m": 653.0,
   "end_distance_m": 658.0,
   "midpoint_distance_m": 655.5,
   "start_elevation_m": 116.35691423152625,
   "end_elevation_m": 115.76854839857202,
   "start_xy": [
    240720.02171489506,
    225375.83579950337
   ],
   "end_xy": [
    240722.02111032384,
    225371.25295999937
   ]
  },
  "min_10m": {
   "gradient_pct": -9.904397717777442,
   "start_distance_m": 652.0,
   "end_distance_m": 662.0,
   "midpoint_distance_m": 657.0,
   "start_elevation_m": 116.43058326465645,
   "end_elevation_m": 115.4401434928787,
   "start_xy": [
    240719.6218358093,
    225376.75236740417
   ],
   "end_xy": [
    240723.62062666685,
    225367.58668839617
   ]
  },
  "min_20m": {
   "gradient_pct": -8.554470193939139,
   "start_distance_m": 653.0,
   "end_distance_m": 673.0,
   "midpoint_distance_m": 663.0,
   "start_elevation_m": 116.35691423152625,
   "end_elevation_m": 114.64602019273842,
   "start_xy": [
    240720.02171489506,
    225375.83579950337
   ],
   "end_xy": [
    240728.01929661015,
    225357.5044414874
   ]
  },
  "min_25m": {
   "gradient_pct": -7.458775059176162,
   "start_distance_m": 650.0,
   "end_distance_m": 675.0,
   "midpoint_distance_m": 662.5,
   "start_elevation_m": 116.37003600732433,
   "end_elevation_m": 114.50534224253029,
   "start_xy": [
    240718.82207763777,
    225378.58550320577
   ],
   "end_xy": [
    240728.81905478166,
    225355.6713056858
   ]
  },
  "min_50m": {
   "gradient_pct": -5.249339858164348,
   "start_distance_m": 625.0,
   "end_distance_m": 675.0,
   "midpoint_distance_m": 650.0,
   "start_elevation_m": 117.13001217161246,
   "end_elevation_m": 114.50534224253029,
   "start_xy": [
    240708.8251004939,
    225401.49970072575
   ],
   "end_xy": [
    240728.81905478166,
    225355.6713056858
   ]
  },
  "min_100m": {
   "gradient_pct": -0.1765152201098772,
   "start_distance_m": 575.0,
   "end_distance_m": 675.0,
   "midpoint_distance_m": 625.0,
   "start_elevation_m": 114.68185746264017,
   "end_elevation_m": 114.50534224253029,
   "start_xy": [
    240695.71762822085,
    225448.86726360954
   ],
   "end_xy": [
    240728.81905478166,
    225355.6713056858
   ]
  }
 },
 "diagnostic_window_maxima": {
  "max_2m": {
   "gradient_pct": 35.2532120018779,
   "start_distance_m": 127.0,
   "end_distance_m": 129.0,
   "midpoint_distance_m": 128.0,
   "start_elevation_m": 63.781765109119036,
   "end_elevation_m": 64.4868293491566,
   "start_xy": [
    240910.82088042365,
    225622.04899785228
   ],
   "end_xy": [
    240910.49783136038,
    225624.02273524686
   ]
  },
  "max_3m": {
   "gradient_pct": 33.01860816395532,
   "start_distance_m": 126.0,
   "end_distance_m": 129.0,
   "midpoint_distance_m": 127.5,
   "start_elevation_m": 63.496271104237934,
   "end_elevation_m": 64.4868293491566,
   "start_xy": [
    240910.98240495526,
    225621.062129155
   ],
   "end_xy": [
    240910.49783136038,
    225624.02273524686
   ]
  }
 },
 "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": {
  "no_bench_suppression": {
   "masked_fraction": 0.138,
   "windows_resited": [
    2.0,
    3.0,
    5.0,
    10.0,
    25.0,
    50.0,
    100.0
   ],
   "windows_unresolved": []
  },
  "overhead_obstruction": {
   "obstruction_threshold_m": 2.0,
   "obstructed_fraction": 0.829,
   "obstruction_max_height_m": 24.34,
   "flagged_windows_m": [
    2,
    3,
    5,
    10,
    20,
    25,
    50,
    100
   ]
  },
  "excluded_ranges_m": [
   [
    80.0,
    110.0
   ],
   [
    340.0,
    370.0
   ],
   [
    400.0,
    430.0
   ]
  ],
  "review": [],
  "extent": [
   "may_start_earlier",
   "descends_at_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_24_240225_20220120dtm.tif"
  ],
  "calculated_at": "2026-09-04T22:04:32+00:00",
  "road_source": "OpenStreetMap (local PBF extract)",
  "road_attribution": "\u00a9 OpenStreetMap contributors, ODbL",
  "osm_pbf_path": "data/cache/pbf/wales-2026-08-11.osm.pbf",
  "osm_snapshot": "2026-08-10T20:21:40Z",
  "run_id": "hunt-wales-260905",
  "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_24_240225_20220120dtm.tif"
  ],
  "elevation_capture_dates": [
   "20-01-2022"
  ],
  "climb_origin": "discovered",
  "license": "ODbL-1.0",
  "license_url": "https://howsteep.org/licensing"
 },
 "area": {
  "place": "Cwmdwyfran",
  "county": "Sir Gaerfyrddin - Carmarthenshire"
 }
}