{
 "ocl_version": "0.1.0",
 "name": "Discovered lane (51.2800, -2.0257)",
 "slug": "discovered-lane-51-2800-2-0257",
 "confidence": "B",
 "reported_claims": [],
 "ladder": [
  {
   "window_m": 2.0,
   "max_gradient_pct": 18.823948381894695,
   "diagnostic": true,
   "flags": [
    "texture_excluded"
   ],
   "start_distance_m": 731.0,
   "end_distance_m": 733.0,
   "start_elevation_m": 151.0811820045349,
   "end_elevation_m": 151.4576609721728,
   "min_gradient_pct": -16.998447472420253,
   "suppressed_max_gradient_pct": 45.747288719744006,
   "suppressed_location_m": [
    785.0,
    787.0
   ]
  },
  {
   "window_m": 3.0,
   "max_gradient_pct": 17.92968558608739,
   "diagnostic": true,
   "flags": [
    "texture_excluded"
   ],
   "start_distance_m": 730.0,
   "end_distance_m": 733.0,
   "start_elevation_m": 150.91977040459017,
   "end_elevation_m": 151.4576609721728,
   "min_gradient_pct": -15.356719743486261,
   "suppressed_max_gradient_pct": 43.521429057502324,
   "suppressed_location_m": [
    785.0,
    788.0
   ]
  },
  {
   "window_m": 5.0,
   "max_gradient_pct": 17.17002782073564,
   "diagnostic": false,
   "flags": [
    "texture_excluded"
   ],
   "start_distance_m": 703.0,
   "end_distance_m": 708.0,
   "start_elevation_m": 146.6451643397062,
   "end_elevation_m": 147.503665730743,
   "min_gradient_pct": -14.061501987720249,
   "suppressed_max_gradient_pct": 41.548401185321495,
   "suppressed_location_m": [
    795.0,
    800.0
   ]
  },
  {
   "window_m": 10.0,
   "max_gradient_pct": 16.716565258127787,
   "diagnostic": false,
   "flags": [
    "texture_excluded"
   ],
   "start_distance_m": 726.0,
   "end_distance_m": 736.0,
   "start_elevation_m": 150.25399308042796,
   "end_elevation_m": 151.92564960624074,
   "min_gradient_pct": -8.43799150843381,
   "suppressed_max_gradient_pct": 32.38873941196431,
   "suppressed_location_m": [
    793.0,
    803.0
   ]
  },
  {
   "window_m": 20.0,
   "max_gradient_pct": 16.242283225690812,
   "diagnostic": false,
   "flags": [
    "texture_excluded"
   ],
   "start_distance_m": 716.0,
   "end_distance_m": 736.0,
   "start_elevation_m": 148.67719296110258,
   "end_elevation_m": 151.92564960624074,
   "min_gradient_pct": 0.5886355817645494,
   "suppressed_max_gradient_pct": 27.495589778323648,
   "suppressed_location_m": [
    783.0,
    803.0
   ]
  },
  {
   "window_m": 25.0,
   "max_gradient_pct": 15.851875660987162,
   "diagnostic": false,
   "flags": [
    "texture_excluded"
   ],
   "start_distance_m": 703.0,
   "end_distance_m": 728.0,
   "start_elevation_m": 146.6451643397062,
   "end_elevation_m": 150.608133254953,
   "min_gradient_pct": 1.9175214521329735,
   "suppressed_max_gradient_pct": 23.16815485751556,
   "suppressed_location_m": [
    780.0,
    805.0
   ]
  },
  {
   "window_m": 50.0,
   "max_gradient_pct": 15.3594135544663,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 701.0,
   "end_distance_m": 751.0,
   "start_elevation_m": 146.3492244263422,
   "end_elevation_m": 154.02893120357535,
   "min_gradient_pct": 3.4942861607906366
  },
  {
   "window_m": 100.0,
   "max_gradient_pct": 13.47422607156551,
   "diagnostic": false,
   "flags": [
    "texture_excluded"
   ],
   "start_distance_m": 671.0,
   "end_distance_m": 771.0,
   "start_elevation_m": 142.69834878408784,
   "end_elevation_m": 156.17257485565335,
   "min_gradient_pct": 4.820129456892076,
   "suppressed_max_gradient_pct": 14.305271753624027,
   "suppressed_location_m": [
    702.0,
    802.0
   ]
  }
 ],
 "shape": {
  "ascent_concentration": 0.373,
  "concentration_window_frac": 0.25,
  "longest_pitch_10pct_m": 95.0,
  "shape_class": "sustained"
 },
 "length_m": 1071.8928692558816,
 "start_elevation_m": 95.26813416938852,
 "end_elevation_m": 179.56116474070754,
 "endpoint_gain_m": 84.29303057131902,
 "overall_gradient_pct": 7.863941723004096,
 "accumulated_ascent_m": 85.50674112739145,
 "window_maxima": {
  "max_5m": {
   "gradient_pct": 17.17002782073564,
   "start_distance_m": 703.0,
   "end_distance_m": 708.0,
   "midpoint_distance_m": 705.5,
   "start_elevation_m": 146.6451643397062,
   "end_elevation_m": 147.503665730743,
   "start_xy": [
    398118.4138311223,
    152762.4296252641
   ],
   "end_xy": [
    398116.3829490903,
    152757.86086732187
   ]
  },
  "max_10m": {
   "gradient_pct": 16.716565258127787,
   "start_distance_m": 726.0,
   "end_distance_m": 736.0,
   "midpoint_distance_m": 731.0,
   "start_elevation_m": 150.25399308042796,
   "end_elevation_m": 151.92564960624074,
   "start_xy": [
    398109.9410325888,
    152741.0530850221
   ],
   "end_xy": [
    398106.362704644,
    152731.7152315806
   ]
  },
  "max_20m": {
   "gradient_pct": 16.242283225690812,
   "start_distance_m": 716.0,
   "end_distance_m": 736.0,
   "midpoint_distance_m": 726.0,
   "start_elevation_m": 148.67719296110258,
   "end_elevation_m": 151.92564960624074,
   "start_xy": [
    398113.5190257609,
    152750.39106720863
   ],
   "end_xy": [
    398106.362704644,
    152731.7152315806
   ]
  },
  "max_25m": {
   "gradient_pct": 15.851875660987162,
   "start_distance_m": 703.0,
   "end_distance_m": 728.0,
   "midpoint_distance_m": 715.5,
   "start_elevation_m": 146.6451643397062,
   "end_elevation_m": 150.608133254953,
   "start_xy": [
    398118.4138311223,
    152762.4296252641
   ],
   "end_xy": [
    398109.2248849327,
    152739.18569979645
   ]
  },
  "max_50m": {
   "gradient_pct": 15.3594135544663,
   "start_distance_m": 701.0,
   "end_distance_m": 751.0,
   "midpoint_distance_m": 726.0,
   "start_elevation_m": 146.3492244263422,
   "end_elevation_m": 154.02893120357535,
   "start_xy": [
    398119.23389543156,
    152764.25376739894
   ],
   "end_xy": [
    398100.9939715551,
    152717.70892558113
   ]
  },
  "max_100m": {
   "gradient_pct": 13.47422607156551,
   "start_distance_m": 671.0,
   "end_distance_m": 771.0,
   "midpoint_distance_m": 721.0,
   "start_elevation_m": 142.69834878408784,
   "end_elevation_m": 156.17257485565335,
   "start_xy": [
    398129.99981152796,
    152792.20541110207
   ],
   "end_xy": [
    398107.5704028564,
    152701.0960084483
   ]
  }
 },
 "window_minima": {
  "min_5m": {
   "gradient_pct": -14.061501987720249,
   "start_distance_m": 771.0,
   "end_distance_m": 776.0,
   "midpoint_distance_m": 773.5,
   "start_elevation_m": 156.17257485565335,
   "end_elevation_m": 155.46949975626734,
   "start_xy": [
    398107.5704028564,
    152701.0960084483
   ],
   "end_xy": [
    398111.4965107895,
    152697.99993488716
   ]
  },
  "min_10m": {
   "gradient_pct": -8.43799150843381,
   "start_distance_m": 771.0,
   "end_distance_m": 781.0,
   "midpoint_distance_m": 776.0,
   "start_elevation_m": 156.17257485565335,
   "end_elevation_m": 155.32877570480997,
   "start_xy": [
    398107.5704028564,
    152701.0960084483
   ],
   "end_xy": [
    398115.42261316,
    152694.90385426715
   ]
  },
  "min_20m": {
   "gradient_pct": 0.5886355817645494,
   "start_distance_m": 763.0,
   "end_distance_m": 783.0,
   "midpoint_distance_m": 773.0,
   "start_elevation_m": 155.33145656829103,
   "end_elevation_m": 155.44918368464394,
   "start_xy": [
    398101.7398285745,
    152706.39870401134
   ],
   "end_xy": [
    398116.99564850115,
    152693.66874897835
   ]
  },
  "min_25m": {
   "gradient_pct": 1.9175214521329735,
   "start_distance_m": 758.0,
   "end_distance_m": 783.0,
   "midpoint_distance_m": 770.5,
   "start_elevation_m": 154.9698033216107,
   "end_elevation_m": 155.44918368464394,
   "start_xy": [
    398100.0586439626,
    152711.10758746185
   ],
   "end_xy": [
    398116.99564850115,
    152693.66874897835
   ]
  },
  "min_50m": {
   "gradient_pct": 3.4942861607906366,
   "start_distance_m": 1021.0,
   "end_distance_m": 1071.0,
   "midpoint_distance_m": 1046.0,
   "start_elevation_m": 177.81315886565116,
   "end_elevation_m": 179.56030194604648,
   "start_xy": [
    398228.63871298375,
    152506.64644574668
   ],
   "end_xy": [
    398220.8623931497,
    152457.25663960035
   ]
  },
  "min_100m": {
   "gradient_pct": 4.820129456892076,
   "start_distance_m": 446.0,
   "end_distance_m": 546.0,
   "midpoint_distance_m": 496.0,
   "start_elevation_m": 125.6787105257523,
   "end_elevation_m": 130.49883998264437,
   "start_xy": [
    398208.8998559338,
    153002.4457125107
   ],
   "end_xy": [
    398169.3708163158,
    152910.8075296877
   ]
  }
 },
 "diagnostic_window_maxima": {
  "max_2m": {
   "gradient_pct": 18.823948381894695,
   "start_distance_m": 731.0,
   "end_distance_m": 733.0,
   "midpoint_distance_m": 732.0,
   "start_elevation_m": 151.0811820045349,
   "end_elevation_m": 151.4576609721728,
   "start_xy": [
    398108.1517019472,
    152736.3842223986
   ],
   "end_xy": [
    398107.4350163276,
    152734.51704247907
   ]
  },
  "max_3m": {
   "gradient_pct": 17.92968558608739,
   "start_distance_m": 730.0,
   "end_distance_m": 733.0,
   "midpoint_distance_m": 731.5,
   "start_elevation_m": 150.91977040459017,
   "end_elevation_m": 151.4576609721728,
   "start_xy": [
    398108.5099430256,
    152737.31785151642
   ],
   "end_xy": [
    398107.4350163276,
    152734.51704247907
   ]
  }
 },
 "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": 0.028,
   "windows_resited": [
    2.0,
    3.0,
    5.0,
    10.0,
    20.0,
    25.0,
    100.0
   ],
   "windows_unresolved": []
  },
  "texture_windows": {
   "rounds": 1,
   "windows_masked": [
    {
     "window_m": 25.0,
     "start_m": 780.0,
     "end_m": 805.0,
     "raw_pct": 23.17,
     "reason": "staircase+hump"
    },
    {
     "window_m": 20.0,
     "start_m": 783.0,
     "end_m": 803.0,
     "raw_pct": 27.5,
     "reason": "staircase+hump"
    },
    {
     "window_m": 10.0,
     "start_m": 793.0,
     "end_m": 803.0,
     "raw_pct": 32.39,
     "reason": "hump"
    },
    {
     "window_m": 5.0,
     "start_m": 795.0,
     "end_m": 800.0,
     "raw_pct": 41.55,
     "reason": "hump"
    }
   ],
   "advisory": [],
   "unresolved": []
  },
  "overhead_obstruction": {
   "obstruction_threshold_m": 2.0,
   "obstructed_fraction": 0.021,
   "obstruction_max_height_m": 13.92,
   "flagged_windows_m": []
  },
  "excluded_ranges_m": [
   [
    778.0,
    807.0
   ]
  ],
  "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/england/bulk_dtm_1m/ST9550.tif"
  ],
  "calculated_at": "2026-09-12T01:38:59+00:00",
  "road_source": "OpenStreetMap (local PBF extract)",
  "road_attribution": "\u00a9 OpenStreetMap contributors, ODbL",
  "osm_pbf_path": "output/texture-uk-england/batch-england-rchunk03.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": [
   "ST9550.tif"
  ],
  "climb_origin": "discovered",
  "license": "ODbL-1.0",
  "license_url": "https://howsteep.org/licensing"
 },
 "area": {
  "place": "Little Cheverell",
  "county": "Wiltshire"
 }
}