{
 "ocl_version": "0.1.0",
 "name": "Discovered lane (52.9190, -3.0974)",
 "slug": "discovered-lane-52-9190-3-0974",
 "confidence": "B",
 "reported_claims": [],
 "ladder": [
  {
   "window_m": 2.0,
   "max_gradient_pct": 37.608083993774244,
   "diagnostic": true,
   "flags": [
    "texture_excluded"
   ],
   "start_distance_m": 1838.0,
   "end_distance_m": 1840.0,
   "start_elevation_m": 241.4451145653946,
   "end_elevation_m": 242.19727624527007,
   "min_gradient_pct": -17.43478159447278,
   "suppressed_max_gradient_pct": 52.59575914183614,
   "suppressed_location_m": [
    1807.0,
    1809.0
   ]
  },
  {
   "window_m": 3.0,
   "max_gradient_pct": 34.66593105277411,
   "diagnostic": true,
   "flags": [
    "texture_excluded"
   ],
   "start_distance_m": 1837.0,
   "end_distance_m": 1840.0,
   "start_elevation_m": 241.15729831368685,
   "end_elevation_m": 242.19727624527007,
   "min_gradient_pct": -13.506425969056105,
   "suppressed_max_gradient_pct": 46.21633839705339,
   "suppressed_location_m": [
    1806.0,
    1809.0
   ]
  },
  {
   "window_m": 5.0,
   "max_gradient_pct": 31.321271803212767,
   "diagnostic": false,
   "flags": [
    "texture_excluded"
   ],
   "start_distance_m": 1837.0,
   "end_distance_m": 1842.0,
   "start_elevation_m": 241.15729831368685,
   "end_elevation_m": 242.7233619038475,
   "min_gradient_pct": -7.682352040770866,
   "suppressed_max_gradient_pct": 36.500682867215914,
   "suppressed_location_m": [
    1805.0,
    1810.0
   ]
  },
  {
   "window_m": 10.0,
   "max_gradient_pct": 23.93403562828439,
   "diagnostic": false,
   "flags": [
    "texture_excluded",
    "canopy_or_structure"
   ],
   "start_distance_m": 1730.0,
   "end_distance_m": 1740.0,
   "start_elevation_m": 224.2478767503652,
   "end_elevation_m": 226.64128031319365,
   "min_gradient_pct": -3.8958073623416567,
   "suppressed_max_gradient_pct": 32.277348975990776,
   "suppressed_location_m": [
    1800.0,
    1810.0
   ]
  },
  {
   "window_m": 20.0,
   "max_gradient_pct": 20.128208446081572,
   "diagnostic": false,
   "flags": [
    "texture_excluded",
    "canopy_or_structure"
   ],
   "start_distance_m": 1720.0,
   "end_distance_m": 1740.0,
   "start_elevation_m": 222.61563862397733,
   "end_elevation_m": 226.64128031319365,
   "min_gradient_pct": -2.113386262095105,
   "suppressed_max_gradient_pct": 25.63460412108995,
   "suppressed_location_m": [
    1799.0,
    1819.0
   ]
  },
  {
   "window_m": 25.0,
   "max_gradient_pct": 19.57494146801173,
   "diagnostic": false,
   "flags": [
    "texture_excluded"
   ],
   "start_distance_m": 1958.0,
   "end_distance_m": 1983.0,
   "start_elevation_m": 258.85110611467314,
   "end_elevation_m": 263.7448414816761,
   "min_gradient_pct": -1.9382563535091322,
   "suppressed_max_gradient_pct": 23.860640813132022,
   "suppressed_location_m": [
    1793.0,
    1818.0
   ]
  },
  {
   "window_m": 50.0,
   "max_gradient_pct": 18.003791236003337,
   "diagnostic": false,
   "flags": [
    "texture_excluded"
   ],
   "start_distance_m": 1933.0,
   "end_distance_m": 1983.0,
   "start_elevation_m": 254.7429458636744,
   "end_elevation_m": 263.7448414816761,
   "min_gradient_pct": -1.0883513547911434,
   "suppressed_max_gradient_pct": 19.716305857305883,
   "suppressed_location_m": [
    1768.0,
    1818.0
   ]
  },
  {
   "window_m": 100.0,
   "max_gradient_pct": 16.766350694269278,
   "diagnostic": false,
   "flags": [
    "texture_excluded",
    "canopy_or_structure"
   ],
   "start_distance_m": 1658.0,
   "end_distance_m": 1758.0,
   "start_elevation_m": 212.24870214768094,
   "end_elevation_m": 229.01505284195022,
   "min_gradient_pct": -0.5223573274303135,
   "suppressed_max_gradient_pct": 17.90964717612121,
   "suppressed_location_m": [
    1718.0,
    1818.0
   ]
  }
 ],
 "shape": {
  "ascent_concentration": 0.473,
  "concentration_window_frac": 0.25,
  "longest_pitch_10pct_m": 265.0,
  "shape_class": "stepped"
 },
 "length_m": 4045.4570995978156,
 "start_elevation_m": 133.22779506836176,
 "end_elevation_m": 373.3222112640374,
 "endpoint_gain_m": 240.09441619567562,
 "overall_gradient_pct": 5.9349144060765076,
 "accumulated_ascent_m": 251.59880189367698,
 "window_maxima": {
  "max_5m": {
   "gradient_pct": 31.321271803212767,
   "start_distance_m": 1837.0,
   "end_distance_m": 1842.0,
   "midpoint_distance_m": 1839.5,
   "start_elevation_m": 241.15729831368685,
   "end_elevation_m": 242.7233619038475,
   "start_xy": [
    326828.36491267,
    336184.2135144484
   ],
   "end_xy": [
    326823.5225005265,
    336184.08578654256
   ]
  },
  "max_10m": {
   "gradient_pct": 23.93403562828439,
   "start_distance_m": 1730.0,
   "end_distance_m": 1740.0,
   "midpoint_distance_m": 1735.0,
   "start_elevation_m": 224.2478767503652,
   "end_elevation_m": 226.64128031319365,
   "start_xy": [
    326903.2527629584,
    336255.85179258394
   ],
   "end_xy": [
    326893.4915053218,
    336253.6797353021
   ]
  },
  "max_20m": {
   "gradient_pct": 20.128208446081572,
   "start_distance_m": 1720.0,
   "end_distance_m": 1740.0,
   "midpoint_distance_m": 1730.0,
   "start_elevation_m": 222.61563862397733,
   "end_elevation_m": 226.64128031319365,
   "start_xy": [
    326913.01402080205,
    336258.02384991193
   ],
   "end_xy": [
    326893.4915053218,
    336253.6797353021
   ]
  },
  "max_25m": {
   "gradient_pct": 19.57494146801173,
   "start_distance_m": 1958.0,
   "end_distance_m": 1983.0,
   "midpoint_distance_m": 1970.5,
   "start_elevation_m": 258.85110611467314,
   "end_elevation_m": 263.7448414816761,
   "start_xy": [
    326735.39622822433,
    336257.14558600116
   ],
   "end_xy": [
    326712.54403527605,
    336267.2480968499
   ]
  },
  "max_50m": {
   "gradient_pct": 18.003791236003337,
   "start_distance_m": 1933.0,
   "end_distance_m": 1983.0,
   "midpoint_distance_m": 1958.0,
   "start_elevation_m": 254.7429458636744,
   "end_elevation_m": 263.7448414816761,
   "start_xy": [
    326757.65161983174,
    336245.7852599838
   ],
   "end_xy": [
    326712.54403527605,
    336267.2480968499
   ]
  },
  "max_100m": {
   "gradient_pct": 16.766350694269278,
   "start_distance_m": 1658.0,
   "end_distance_m": 1758.0,
   "midpoint_distance_m": 1708.0,
   "start_elevation_m": 212.24870214768094,
   "end_elevation_m": 229.01505284195022,
   "start_xy": [
    326974.1100183288,
    336268.360509241
   ],
   "end_xy": [
    326878.0238649981,
    336245.00471351855
   ]
  }
 },
 "window_minima": {
  "min_5m": {
   "gradient_pct": -7.682352040770866,
   "start_distance_m": 3622.0,
   "end_distance_m": 3627.0,
   "midpoint_distance_m": 3624.5,
   "start_elevation_m": 362.7987064098991,
   "end_elevation_m": 362.4145888078606,
   "start_xy": [
    325257.3954116582,
    335698.48899703013
   ],
   "end_xy": [
    325252.9577003272,
    335696.18536736286
   ]
  },
  "min_10m": {
   "gradient_pct": -3.8958073623416567,
   "start_distance_m": 3622.0,
   "end_distance_m": 3632.0,
   "midpoint_distance_m": 3627.0,
   "start_elevation_m": 362.7987064098991,
   "end_elevation_m": 362.40912567366496,
   "start_xy": [
    325257.3954116582,
    335698.48899703013
   ],
   "end_xy": [
    325248.7709504604,
    335693.4635947114
   ]
  },
  "min_20m": {
   "gradient_pct": -2.113386262095105,
   "start_distance_m": 3639.0,
   "end_distance_m": 3659.0,
   "midpoint_distance_m": 3649.0,
   "start_elevation_m": 362.722822651728,
   "end_elevation_m": 362.300145399309,
   "start_xy": [
    325243.0284644471,
    335689.460614694
   ],
   "end_xy": [
    325226.62199235155,
    335678.02262393304
   ]
  },
  "min_25m": {
   "gradient_pct": -1.9382563535091322,
   "start_distance_m": 3639.0,
   "end_distance_m": 3664.0,
   "midpoint_distance_m": 3651.5,
   "start_elevation_m": 362.722822651728,
   "end_elevation_m": 362.2382585633507,
   "start_xy": [
    325243.0284644471,
    335689.460614694
   ],
   "end_xy": [
    325222.5200163389,
    335675.16364066565
   ]
  },
  "min_50m": {
   "gradient_pct": -1.0883513547911434,
   "start_distance_m": 3622.0,
   "end_distance_m": 3672.0,
   "midpoint_distance_m": 3647.0,
   "start_elevation_m": 362.7987064098991,
   "end_elevation_m": 362.25453073250355,
   "start_xy": [
    325257.3954116582,
    335698.48899703013
   ],
   "end_xy": [
    325215.95720130054,
    335670.5887696877
   ]
  },
  "min_100m": {
   "gradient_pct": -0.5223573274303135,
   "start_distance_m": 3295.0,
   "end_distance_m": 3395.0,
   "midpoint_distance_m": 3345.0,
   "start_elevation_m": 359.8357511189288,
   "end_elevation_m": 359.31339379149847,
   "start_xy": [
    325556.8110664364,
    335829.38606642716
   ],
   "end_xy": [
    325464.3861511755,
    335791.20710145996
   ]
  }
 },
 "diagnostic_window_maxima": {
  "max_2m": {
   "gradient_pct": 37.608083993774244,
   "start_distance_m": 1838.0,
   "end_distance_m": 1840.0,
   "midpoint_distance_m": 1839.0,
   "start_elevation_m": 241.4451145653946,
   "end_elevation_m": 242.19727624527007,
   "start_xy": [
    326827.5156491831,
    336183.8517779032
   ],
   "end_xy": [
    326825.5190731434,
    336183.9687532642
   ]
  },
  "max_3m": {
   "gradient_pct": 34.66593105277411,
   "start_distance_m": 1837.0,
   "end_distance_m": 1840.0,
   "midpoint_distance_m": 1838.5,
   "start_elevation_m": 241.15729831368685,
   "end_elevation_m": 242.19727624527007,
   "start_xy": [
    326828.36491267,
    336184.2135144484
   ],
   "end_xy": [
    326825.5190731434,
    336183.9687532642
   ]
  }
 },
 "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": 0.008,
   "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": 1793.0,
     "end_m": 1818.0,
     "raw_pct": 23.86,
     "reason": "hump"
    },
    {
     "window_m": 20.0,
     "start_m": 1799.0,
     "end_m": 1819.0,
     "raw_pct": 25.63,
     "reason": "hump"
    },
    {
     "window_m": 10.0,
     "start_m": 1800.0,
     "end_m": 1810.0,
     "raw_pct": 32.28,
     "reason": "hump"
    },
    {
     "window_m": 5.0,
     "start_m": 1805.0,
     "end_m": 1810.0,
     "raw_pct": 36.5,
     "reason": "short-step"
    }
   ],
   "advisory": [],
   "unresolved": []
  },
  "overhead_obstruction": {
   "obstruction_threshold_m": 2.0,
   "obstructed_fraction": 0.047,
   "obstruction_max_height_m": 13.36,
   "flagged_windows_m": [
    10,
    20,
    100
   ]
  },
  "excluded_ranges_m": [
   [
    1791.0,
    1821.0
   ]
  ],
  "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/SJ2035.tif",
   "data/cache/england/bulk_dtm_1m/SJ2535.tif"
  ],
  "calculated_at": "2026-09-11T23:35:07+00:00",
  "road_source": "OpenStreetMap (local PBF extract)",
  "road_attribution": "\u00a9 OpenStreetMap contributors, ODbL",
  "osm_pbf_path": "output/texture-uk-england/batch-england-rchunk04.pbf",
  "osm_snapshot": "",
  "run_id": "texture-uk-england-260911",
  "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": [
   "SJ2035.tif",
   "SJ2535.tif"
  ],
  "climb_origin": "discovered",
  "license": "ODbL-1.0",
  "license_url": "https://howsteep.org/licensing"
 },
 "area": {
  "place": "Weston Rhyn",
  "county": "Shropshire"
 }
}