{
 "ocl_version": "0.1.0",
 "name": "Hayne Lane",
 "slug": "hayne-lane-3",
 "confidence": "B",
 "reported_claims": [],
 "ladder": [
  {
   "window_m": 2.0,
   "max_gradient_pct": 42.29549545102742,
   "diagnostic": true,
   "flags": [
    "structure_excluded",
    "canopy_or_structure"
   ],
   "start_distance_m": 902.0,
   "end_distance_m": 904.0,
   "start_elevation_m": 187.77800831748345,
   "end_elevation_m": 188.623918226504,
   "min_gradient_pct": -13.355111572268896,
   "suppressed_max_gradient_pct": 58.29014240444366,
   "suppressed_location_m": [
    170.0,
    172.0
   ]
  },
  {
   "window_m": 3.0,
   "max_gradient_pct": 36.01248904750397,
   "diagnostic": true,
   "flags": [
    "structure_excluded",
    "canopy_or_structure"
   ],
   "start_distance_m": 902.0,
   "end_distance_m": 905.0,
   "start_elevation_m": 187.77800831748345,
   "end_elevation_m": 188.85838298890857,
   "min_gradient_pct": -10.21343194980299,
   "suppressed_max_gradient_pct": 52.045447403050105,
   "suppressed_location_m": [
    169.0,
    172.0
   ]
  },
  {
   "window_m": 5.0,
   "max_gradient_pct": 33.492517707856564,
   "diagnostic": false,
   "flags": [
    "structure_excluded"
   ],
   "start_distance_m": 551.0,
   "end_distance_m": 556.0,
   "start_elevation_m": 132.94806519098753,
   "end_elevation_m": 134.62269107638036,
   "min_gradient_pct": -8.421064857284364,
   "suppressed_max_gradient_pct": 41.76247605237876,
   "suppressed_location_m": [
    168.0,
    173.0
   ]
  },
  {
   "window_m": 10.0,
   "max_gradient_pct": 29.283262651149755,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 896.0,
   "end_distance_m": 906.0,
   "start_elevation_m": 186.24257348094162,
   "end_elevation_m": 189.1708997460566,
   "min_gradient_pct": -6.112275626402379
  },
  {
   "window_m": 20.0,
   "max_gradient_pct": 26.26365555927933,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 887.0,
   "end_distance_m": 907.0,
   "start_elevation_m": 184.09758772620194,
   "end_elevation_m": 189.3503188380578,
   "min_gradient_pct": -2.8947901909748452
  },
  {
   "window_m": 25.0,
   "max_gradient_pct": 25.23733323085048,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 888.0,
   "end_distance_m": 913.0,
   "start_elevation_m": 184.31707142481315,
   "end_elevation_m": 190.62640473252577,
   "min_gradient_pct": -2.3497604217822072
  },
  {
   "window_m": 50.0,
   "max_gradient_pct": 21.806105898776824,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 865.0,
   "end_distance_m": 915.0,
   "start_elevation_m": 180.06290756709262,
   "end_elevation_m": 190.96596051648103,
   "min_gradient_pct": -1.482458135485075
  },
  {
   "window_m": 100.0,
   "max_gradient_pct": 18.939594225294826,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 849.0,
   "end_distance_m": 949.0,
   "start_elevation_m": 177.64497790070183,
   "end_elevation_m": 196.58457212599666,
   "min_gradient_pct": -0.8000548134291563
  }
 ],
 "shape": {
  "ascent_concentration": 0.351,
  "concentration_window_frac": 0.25,
  "longest_pitch_10pct_m": 245.0,
  "shape_class": "sustained"
 },
 "length_m": 1309.11071471936,
 "start_elevation_m": 88.87179055133724,
 "end_elevation_m": 232.24578428366377,
 "endpoint_gain_m": 143.37399373232654,
 "overall_gradient_pct": 10.952014380469132,
 "accumulated_ascent_m": 146.44510812816992,
 "window_maxima": {
  "max_5m": {
   "gradient_pct": 33.492517707856564,
   "start_distance_m": 551.0,
   "end_distance_m": 556.0,
   "midpoint_distance_m": 553.5,
   "start_elevation_m": 132.94806519098753,
   "end_elevation_m": 134.62269107638036,
   "start_xy": [
    321579.489603925,
    100924.46672927121
   ],
   "end_xy": [
    321582.4857499386,
    100928.4696168621
   ]
  },
  "max_10m": {
   "gradient_pct": 29.283262651149755,
   "start_distance_m": 896.0,
   "end_distance_m": 906.0,
   "midpoint_distance_m": 901.0,
   "start_elevation_m": 186.24257348094162,
   "end_elevation_m": 189.1708997460566,
   "start_xy": [
    321859.4509359857,
    101088.52572491877
   ],
   "end_xy": [
    321858.641385522,
    101098.4929024554
   ]
  },
  "max_20m": {
   "gradient_pct": 26.26365555927933,
   "start_distance_m": 887.0,
   "end_distance_m": 907.0,
   "midpoint_distance_m": 897.0,
   "start_elevation_m": 184.09758772620194,
   "end_elevation_m": 189.3503188380578,
   "start_xy": [
    321858.94852144725,
    101079.54764279803
   ],
   "end_xy": [
    321858.5604304756,
    101099.48962020907
   ]
  },
  "max_25m": {
   "gradient_pct": 25.23733323085048,
   "start_distance_m": 888.0,
   "end_distance_m": 913.0,
   "midpoint_distance_m": 900.5,
   "start_elevation_m": 184.31707142481315,
   "end_elevation_m": 190.62640473252577,
   "start_xy": [
    321859.01712752966,
    101080.54528662498
   ],
   "end_xy": [
    321858.0747001974,
    101105.46992673105
   ]
  },
  "max_50m": {
   "gradient_pct": 21.806105898776824,
   "start_distance_m": 865.0,
   "end_distance_m": 915.0,
   "midpoint_distance_m": 890.0,
   "start_elevation_m": 180.06290756709262,
   "end_elevation_m": 190.96596051648103,
   "start_xy": [
    321841.1395441763,
    101068.13964915414
   ],
   "end_xy": [
    321857.91279010463,
    101107.46336223837
   ]
  },
  "max_100m": {
   "gradient_pct": 18.939594225294826,
   "start_distance_m": 849.0,
   "end_distance_m": 949.0,
   "midpoint_distance_m": 899.0,
   "start_elevation_m": 177.64497790070183,
   "end_elevation_m": 196.58457212599666,
   "start_xy": [
    321825.8553809556,
    101063.41225921438
   ],
   "end_xy": [
    321857.4307673269,
    101141.41729547016
   ]
  }
 },
 "window_minima": {
  "min_5m": {
   "gradient_pct": -8.421064857284364,
   "start_distance_m": 280.0,
   "end_distance_m": 285.0,
   "midpoint_distance_m": 282.5,
   "start_elevation_m": 106.01785299372828,
   "end_elevation_m": 105.59679975086407,
   "start_xy": [
    321378.80481962964,
    100817.39991572783
   ],
   "end_xy": [
    321379.50076870347,
    100822.35124432597
   ]
  },
  "min_10m": {
   "gradient_pct": -6.112275626402379,
   "start_distance_m": 280.0,
   "end_distance_m": 290.0,
   "midpoint_distance_m": 285.0,
   "start_elevation_m": 106.01785299372828,
   "end_elevation_m": 105.40662543108805,
   "start_xy": [
    321378.80481962964,
    100817.39991572783
   ],
   "end_xy": [
    321380.19671777735,
    100827.30257292409
   ]
  },
  "min_20m": {
   "gradient_pct": -2.8947901909748452,
   "start_distance_m": 280.0,
   "end_distance_m": 300.0,
   "midpoint_distance_m": 290.0,
   "start_elevation_m": 106.01785299372828,
   "end_elevation_m": 105.43889495553331,
   "start_xy": [
    321378.80481962964,
    100817.39991572783
   ],
   "end_xy": [
    321380.19484932587,
    100837.26863774478
   ]
  },
  "min_25m": {
   "gradient_pct": -2.3497604217822072,
   "start_distance_m": 62.0,
   "end_distance_m": 87.0,
   "midpoint_distance_m": 74.5,
   "start_elevation_m": 88.56025336314704,
   "end_elevation_m": 87.97281325770149,
   "start_xy": [
    321269.3732144708,
    100688.8779345252
   ],
   "end_xy": [
    321281.11788351415,
    100710.36957357496
   ]
  },
  "min_50m": {
   "gradient_pct": -1.482458135485075,
   "start_distance_m": 37.0,
   "end_distance_m": 87.0,
   "midpoint_distance_m": 62.0,
   "start_elevation_m": 88.71404232544403,
   "end_elevation_m": 87.97281325770149,
   "start_xy": [
    321263.243336957,
    100664.64109063688
   ],
   "end_xy": [
    321281.11788351415,
    100710.36957357496
   ]
  },
  "min_100m": {
   "gradient_pct": -0.8000548134291563,
   "start_distance_m": 1.0,
   "end_distance_m": 101.0,
   "midpoint_distance_m": 51.0,
   "start_elevation_m": 88.88028850267828,
   "end_elevation_m": 88.08023368924913,
   "start_xy": [
    321270.7678718079,
    100635.72720993475
   ],
   "end_xy": [
    321292.8591280972,
    100716.68715444178
   ]
  }
 },
 "diagnostic_window_maxima": {
  "max_2m": {
   "gradient_pct": 42.29549545102742,
   "start_distance_m": 902.0,
   "end_distance_m": 904.0,
   "midpoint_distance_m": 903.0,
   "start_elevation_m": 187.77800831748345,
   "end_elevation_m": 188.623918226504,
   "start_xy": [
    321858.96520570747,
    101094.50603144076
   ],
   "end_xy": [
    321858.8032956147,
    101096.49946694808
   ]
  },
  "max_3m": {
   "gradient_pct": 36.01248904750397,
   "start_distance_m": 902.0,
   "end_distance_m": 905.0,
   "midpoint_distance_m": 903.5,
   "start_elevation_m": 187.77800831748345,
   "end_elevation_m": 188.85838298890857,
   "start_xy": [
    321858.96520570747,
    101094.50603144076
   ],
   "end_xy": [
    321858.7223405684,
    101097.49618470174
   ]
  }
 },
 "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": 0.005,
   "windows_resited": [
    2.0,
    3.0,
    5.0
   ],
   "windows_unresolved": []
  },
  "overhead_obstruction": {
   "obstruction_threshold_m": 2.0,
   "obstructed_fraction": 0.2,
   "obstruction_max_height_m": 24.24,
   "flagged_windows_m": [
    2,
    3,
    10,
    20,
    25,
    50,
    100
   ]
  },
  "excluded_ranges_m": [
   [
    169.0,
    174.0
   ]
  ],
  "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/ST2000.tif"
  ],
  "calculated_at": "2026-08-30T05:15:57+00:00",
  "road_source": "routes/hayne-lane-3-trim.geojson",
  "run_id": "downe-trim-260830",
  "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": [
   "ST2000.tif"
  ],
  "climb_origin": "discovered",
  "license": "ODbL-1.0",
  "license_url": "https://howsteep.org/licensing"
 },
 "area": {
  "place": "Wilmington",
  "county": "Devon"
 }
}