{
 "ocl_version": "0.1.0",
 "name": "Laupahoehoe Point Road",
 "slug": "laupahoehoe-point-road",
 "confidence": "B",
 "reported_claims": [],
 "ladder": [
  {
   "window_m": 2.0,
   "max_gradient_pct": 46.85008473688086,
   "diagnostic": true,
   "flags": [
    "structure_excluded",
    "texture_excluded"
   ],
   "start_distance_m": 818.0,
   "end_distance_m": 820.0,
   "start_elevation_m": 33.86412972172177,
   "end_elevation_m": 34.801131416459384,
   "min_gradient_pct": -80.70998836651242,
   "suppressed_max_gradient_pct": 84.17802562300167,
   "suppressed_location_m": [
    1742.0,
    1744.0
   ]
  },
  {
   "window_m": 3.0,
   "max_gradient_pct": 37.105511336639786,
   "diagnostic": true,
   "flags": [
    "structure_excluded",
    "texture_excluded",
    "texture_excluded"
   ],
   "start_distance_m": 818.0,
   "end_distance_m": 821.0,
   "start_elevation_m": 33.86412972172177,
   "end_elevation_m": 34.97729506182096,
   "min_gradient_pct": -72.34948425419437,
   "suppressed_max_gradient_pct": 79.262569744598,
   "suppressed_location_m": [
    1972.0,
    1975.0
   ]
  },
  {
   "window_m": 5.0,
   "max_gradient_pct": 28.10671286054486,
   "diagnostic": false,
   "flags": [
    "structure_excluded",
    "texture_excluded",
    "texture_excluded",
    "texture_excluded",
    "texture_excluded"
   ],
   "start_distance_m": 1315.0,
   "end_distance_m": 1320.0,
   "start_elevation_m": 65.91961603389616,
   "end_elevation_m": 67.3249516769234,
   "min_gradient_pct": -44.82913854471349,
   "suppressed_max_gradient_pct": 71.47041900247729,
   "suppressed_location_m": [
    1015.0,
    1020.0
   ]
  },
  {
   "window_m": 10.0,
   "max_gradient_pct": 20.17856853804588,
   "diagnostic": false,
   "flags": [
    "structure_excluded",
    "texture_excluded",
    "texture_excluded"
   ],
   "start_distance_m": 1315.0,
   "end_distance_m": 1325.0,
   "start_elevation_m": 65.91961603389616,
   "end_elevation_m": 67.93747288770075,
   "min_gradient_pct": -24.327231534606,
   "suppressed_max_gradient_pct": 44.57240195989158,
   "suppressed_location_m": [
    1010.0,
    1020.0
   ]
  },
  {
   "window_m": 20.0,
   "max_gradient_pct": 13.935857091532744,
   "diagnostic": false,
   "flags": [
    "structure_excluded",
    "texture_excluded",
    "texture_excluded"
   ],
   "start_distance_m": 248.0,
   "end_distance_m": 268.0,
   "start_elevation_m": 7.060493317051076,
   "end_elevation_m": 9.847664735357625,
   "min_gradient_pct": -8.318646565253616,
   "suppressed_max_gradient_pct": 28.338210825204442,
   "suppressed_location_m": [
    1972.0,
    1992.0
   ]
  },
  {
   "window_m": 25.0,
   "max_gradient_pct": 13.140400703554594,
   "diagnostic": false,
   "flags": [
    "structure_excluded",
    "texture_excluded",
    "texture_excluded"
   ],
   "start_distance_m": 247.0,
   "end_distance_m": 272.0,
   "start_elevation_m": 7.0269093655997805,
   "end_elevation_m": 10.312009541488429,
   "min_gradient_pct": -5.887112834958998,
   "suppressed_max_gradient_pct": 30.3494175249752,
   "suppressed_location_m": [
    1972.0,
    1997.0
   ]
  },
  {
   "window_m": 50.0,
   "max_gradient_pct": 9.786240824230532,
   "diagnostic": false,
   "flags": [
    "texture_excluded",
    "texture_excluded",
    "texture_excluded"
   ],
   "start_distance_m": 1314.0,
   "end_distance_m": 1364.0,
   "start_elevation_m": 65.84483938754246,
   "end_elevation_m": 70.73795979965773,
   "min_gradient_pct": -3.38128769426541,
   "suppressed_max_gradient_pct": 18.541561935227307,
   "suppressed_location_m": [
    549.0,
    599.0
   ]
  },
  {
   "window_m": 100.0,
   "max_gradient_pct": 8.616614581798288,
   "diagnostic": false,
   "flags": [
    "texture_excluded",
    "texture_excluded"
   ],
   "start_distance_m": 1315.0,
   "end_distance_m": 1415.0,
   "start_elevation_m": 65.91961603389616,
   "end_elevation_m": 74.53623061569445,
   "min_gradient_pct": -2.2561908200987304,
   "suppressed_max_gradient_pct": 11.300982582765501,
   "suppressed_location_m": [
    484.0,
    584.0
   ]
  }
 ],
 "shape": {
  "ascent_concentration": 0.357,
  "concentration_window_frac": 0.25,
  "longest_pitch_10pct_m": 50.0,
  "shape_class": "sustained"
 },
 "length_m": 2370.6097860306927,
 "start_elevation_m": 4.476996068558617,
 "end_elevation_m": 120.73869205199915,
 "endpoint_gain_m": 116.26169598344053,
 "overall_gradient_pct": 4.904294948436329,
 "accumulated_ascent_m": 145.483372159384,
 "window_maxima": {
  "max_5m": {
   "gradient_pct": 28.10671286054486,
   "start_distance_m": 1315.0,
   "end_distance_m": 1320.0,
   "midpoint_distance_m": 1317.5,
   "start_elevation_m": 65.91961603389616,
   "end_elevation_m": 67.3249516769234,
   "start_xy": [
    265178.471448135,
    2212283.7946116067
   ],
   "end_xy": [
    265180.51428671915,
    2212288.358251283
   ]
  },
  "max_10m": {
   "gradient_pct": 20.17856853804588,
   "start_distance_m": 1315.0,
   "end_distance_m": 1325.0,
   "midpoint_distance_m": 1320.0,
   "start_elevation_m": 65.91961603389616,
   "end_elevation_m": 67.93747288770075,
   "start_xy": [
    265178.471448135,
    2212283.7946116067
   ],
   "end_xy": [
    265182.5567829423,
    2212292.9220442236
   ]
  },
  "max_20m": {
   "gradient_pct": 13.935857091532744,
   "start_distance_m": 248.0,
   "end_distance_m": 268.0,
   "midpoint_distance_m": 258.0,
   "start_elevation_m": 7.060493317051076,
   "end_elevation_m": 9.847664735357625,
   "start_xy": [
    265480.92909333436,
    2212148.813178525
   ],
   "end_xy": [
    265464.1200141808,
    2212138.1459448244
   ]
  },
  "max_25m": {
   "gradient_pct": 13.140400703554594,
   "start_distance_m": 247.0,
   "end_distance_m": 272.0,
   "midpoint_distance_m": 259.5,
   "start_elevation_m": 7.0269093655997805,
   "end_elevation_m": 10.312009541488429,
   "start_xy": [
    265481.7326552734,
    2212149.4083996112
   ],
   "end_xy": [
    265460.48950714344,
    2212136.4668337004
   ]
  },
  "max_50m": {
   "gradient_pct": 9.786240824230532,
   "start_distance_m": 1314.0,
   "end_distance_m": 1364.0,
   "midpoint_distance_m": 1339.0,
   "start_elevation_m": 65.84483938754246,
   "end_elevation_m": 70.73795979965773,
   "start_xy": [
    265178.06283452833,
    2212282.8819042267
   ],
   "end_xy": [
    265198.20572855923,
    2212328.583924959
   ]
  },
  "max_100m": {
   "gradient_pct": 8.616614581798288,
   "start_distance_m": 1315.0,
   "end_distance_m": 1415.0,
   "midpoint_distance_m": 1365.0,
   "start_elevation_m": 65.91961603389616,
   "end_elevation_m": 74.53623061569445,
   "start_xy": [
    265178.471448135,
    2212283.7946116067
   ],
   "end_xy": [
    265171.44802177785,
    2212366.5576915364
   ]
  }
 },
 "window_minima": {
  "min_5m": {
   "gradient_pct": -44.82913854471349,
   "start_distance_m": 1744.0,
   "end_distance_m": 1749.0,
   "midpoint_distance_m": 1746.5,
   "start_elevation_m": 96.94307027261635,
   "end_elevation_m": 94.70161334538068,
   "start_xy": [
    264848.7519397777,
    2212379.878547029
   ],
   "end_xy": [
    264843.78894166613,
    2212379.271387038
   ]
  },
  "min_10m": {
   "gradient_pct": -24.327231534606,
   "start_distance_m": 1745.0,
   "end_distance_m": 1755.0,
   "midpoint_distance_m": 1750.0,
   "start_elevation_m": 97.12526992251316,
   "end_elevation_m": 94.69254676905256,
   "start_xy": [
    264847.7593038662,
    2212379.7574116495
   ],
   "end_xy": [
    264837.8333894117,
    2212378.5424220734
   ]
  },
  "min_20m": {
   "gradient_pct": -8.318646565253616,
   "start_distance_m": 1745.0,
   "end_distance_m": 1765.0,
   "midpoint_distance_m": 1755.0,
   "start_elevation_m": 97.12526992251316,
   "end_elevation_m": 95.46154060946243,
   "start_xy": [
    264847.7593038662,
    2212379.7574116495
   ],
   "end_xy": [
    264827.9074558373,
    2212377.3275907477
   ]
  },
  "min_25m": {
   "gradient_pct": -5.887112834958998,
   "start_distance_m": 1745.0,
   "end_distance_m": 1770.0,
   "midpoint_distance_m": 1757.5,
   "start_elevation_m": 97.12526992251316,
   "end_elevation_m": 95.6534917137734,
   "start_xy": [
    264847.7593038662,
    2212379.7574116495
   ],
   "end_xy": [
    264822.9444576301,
    2212376.720430386
   ]
  },
  "min_50m": {
   "gradient_pct": -3.38128769426541,
   "start_distance_m": 630.0,
   "end_distance_m": 680.0,
   "midpoint_distance_m": 655.0,
   "start_elevation_m": 34.409721631621586,
   "end_elevation_m": 32.71907778448888,
   "start_xy": [
    265211.0433874019,
    2211915.691255774
   ],
   "end_xy": [
    265161.7075998374,
    2211913.3789361287
   ]
  },
  "min_100m": {
   "gradient_pct": -2.2561908200987304,
   "start_distance_m": 630.0,
   "end_distance_m": 730.0,
   "midpoint_distance_m": 680.0,
   "start_elevation_m": 34.409721631621586,
   "end_elevation_m": 32.153530811522856,
   "start_xy": [
    265211.0433874019,
    2211915.691255774
   ],
   "end_xy": [
    265112.09574735124,
    2211908.5994675234
   ]
  }
 },
 "diagnostic_window_maxima": {
  "max_2m": {
   "gradient_pct": 46.85008473688086,
   "start_distance_m": 818.0,
   "end_distance_m": 820.0,
   "midpoint_distance_m": 819.0,
   "start_elevation_m": 33.86412972172177,
   "end_elevation_m": 34.801131416459384,
   "start_xy": [
    265026.625671446,
    2211928.183200833
   ],
   "end_xy": [
    265024.7544555568,
    2211928.8892822526
   ]
  },
  "max_3m": {
   "gradient_pct": 37.105511336639786,
   "start_distance_m": 818.0,
   "end_distance_m": 821.0,
   "midpoint_distance_m": 819.5,
   "start_elevation_m": 33.86412972172177,
   "end_elevation_m": 34.97729506182096,
   "start_xy": [
    265026.625671446,
    2211928.183200833
   ],
   "end_xy": [
    265023.8188524951,
    2211929.242335903
   ]
  }
 },
 "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": 0.018,
   "windows_resited": [
    2.0,
    3.0,
    5.0,
    10.0,
    20.0,
    25.0
   ],
   "windows_unresolved": []
  },
  "placement_suppression": {
   "masked_fraction": 0.03,
   "windows_resited": [],
   "windows_unresolved": []
  },
  "texture_suppression": {
   "masked_fraction": 0.068,
   "windows_resited": [
    2.0,
    3.0,
    5.0
   ],
   "windows_unresolved": []
  },
  "texture_windows": {
   "rounds": 4,
   "windows_masked": [
    {
     "window_m": 25.0,
     "start_m": 551.0,
     "end_m": 576.0,
     "raw_pct": 24.2,
     "reason": "hump"
    },
    {
     "window_m": 20.0,
     "start_m": 552.0,
     "end_m": 572.0,
     "raw_pct": 26.01,
     "reason": "hump"
    },
    {
     "window_m": 10.0,
     "start_m": 1986.0,
     "end_m": 1996.0,
     "raw_pct": 32.93,
     "reason": "hump"
    },
    {
     "window_m": 5.0,
     "start_m": 1992.0,
     "end_m": 1997.0,
     "raw_pct": 38.39,
     "reason": "hump"
    },
    {
     "window_m": 20.0,
     "start_m": 908.0,
     "end_m": 928.0,
     "raw_pct": 17.18,
     "reason": "spike"
    },
    {
     "window_m": 10.0,
     "start_m": 920.0,
     "end_m": 930.0,
     "raw_pct": 27.49,
     "reason": "hump+short-step"
    },
    {
     "window_m": 5.0,
     "start_m": 922.0,
     "end_m": 927.0,
     "raw_pct": 38.06,
     "reason": "hump"
    },
    {
     "window_m": 5.0,
     "start_m": 1177.0,
     "end_m": 1182.0,
     "raw_pct": 29.87,
     "reason": "short-step"
    },
    {
     "window_m": 5.0,
     "start_m": 1051.0,
     "end_m": 1056.0,
     "raw_pct": 28.35,
     "reason": "mask-edge+short-step"
    }
   ],
   "advisory": [],
   "unresolved": []
  },
  "excluded_ranges_m": [
   [
    549.0,
    578.0
   ],
   [
    906.0,
    932.0
   ],
   [
    1010.0,
    1058.0
   ],
   [
    1175.0,
    1184.0
   ],
   [
    1739.0,
    1750.0
   ],
   [
    1970.0,
    1977.0
   ],
   [
    1984.0,
    1999.0
   ],
   [
    2279.0,
    2287.0
   ]
  ],
  "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:26905",
  "elevation_resolution_m": 1.0,
  "elevation_tiles": [
   "data/cache/usa/hi-east/USGS_1M_5_x26y222_HI_Hawaii_Island_Lidar_NOAA_2017_B17.tif"
  ],
  "calculated_at": "2026-09-12T00:59:54+00:00",
  "road_source": "OpenStreetMap (local PBF extract)",
  "road_attribution": "\u00a9 OpenStreetMap contributors, ODbL",
  "osm_pbf_path": "data/cache/pbf/hawaii-2026-09-08-batch.osm.pbf",
  "osm_snapshot": "2026-09-07T20:21:20Z",
  "run_id": "texture-us-hi-260911",
  "elevation_provider": "USGS 3DEP (The National Map)",
  "elevation_licence": "Public domain \u2014 USGS 3DEP 1 m DEM, courtesy of the U.S. Geological Survey",
  "elevation_dataset": "USGS 3DEP 1 m DEM, HI_Hawaii_Island_Lidar_NOAA_2017_B17 (collected 2017)",
  "elevation_tile_ids": [
   "x26y222"
  ],
  "climb_origin": "discovered",
  "canopy_check": "unavailable \u2014 no surface model (DSM or point cloud) registered for this coverage",
  "license": "ODbL-1.0",
  "license_url": "https://howsteep.org/licensing"
 },
 "area": {
  "place": "North Hilo",
  "county": "Hawaii"
 }
}