{
 "ocl_version": "0.1.0",
 "name": "O'Donnell Road",
 "slug": "o-donnell-road-3",
 "confidence": "A",
 "reported_claims": [],
 "ladder": [
  {
   "window_m": 2.0,
   "max_gradient_pct": 39.8612797547969,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 278.0,
   "end_distance_m": 280.0,
   "start_elevation_m": 357.54558996852796,
   "end_elevation_m": 358.3428155636239,
   "min_gradient_pct": -17.951039629244292
  },
  {
   "window_m": 3.0,
   "max_gradient_pct": 38.0298912234025,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 277.0,
   "end_distance_m": 280.0,
   "start_elevation_m": 357.2019188269218,
   "end_elevation_m": 358.3428155636239,
   "min_gradient_pct": -17.897204196888577
  },
  {
   "window_m": 5.0,
   "max_gradient_pct": 33.92693573512247,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 276.0,
   "end_distance_m": 281.0,
   "start_elevation_m": 356.932928984074,
   "end_elevation_m": 358.62927577083013,
   "min_gradient_pct": -17.889165742883506
  },
  {
   "window_m": 10.0,
   "max_gradient_pct": 26.35132168973371,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 276.0,
   "end_distance_m": 286.0,
   "start_elevation_m": 356.932928984074,
   "end_elevation_m": 359.5680611530474,
   "min_gradient_pct": -17.720198343973266
  },
  {
   "window_m": 20.0,
   "max_gradient_pct": 23.197398794876563,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 275.0,
   "end_distance_m": 295.0,
   "start_elevation_m": 356.7365081671916,
   "end_elevation_m": 361.3759879261669,
   "min_gradient_pct": -16.43031044898919
  },
  {
   "window_m": 25.0,
   "max_gradient_pct": 22.154190168726473,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 275.0,
   "end_distance_m": 300.0,
   "start_elevation_m": 356.7365081671916,
   "end_elevation_m": 362.2750557093732,
   "min_gradient_pct": -15.18309330372449
  },
  {
   "window_m": 50.0,
   "max_gradient_pct": 18.940818752836662,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 259.0,
   "end_distance_m": 309.0,
   "start_elevation_m": 354.42490567909886,
   "end_elevation_m": 363.8953150555172,
   "min_gradient_pct": -10.987370114134478
  },
  {
   "window_m": 100.0,
   "max_gradient_pct": 18.283465252872872,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 250.0,
   "end_distance_m": 350.0,
   "start_elevation_m": 352.9405188759624,
   "end_elevation_m": 371.2239841288353,
   "min_gradient_pct": -5.503718444653487
  }
 ],
 "shape": {
  "ascent_concentration": 0.44,
  "concentration_window_frac": 0.25,
  "longest_pitch_10pct_m": 110.0,
  "shape_class": "sustained"
 },
 "length_m": 474.0389355447907,
 "start_elevation_m": 341.25355553491437,
 "end_elevation_m": 383.8160353552257,
 "endpoint_gain_m": 42.56247982031135,
 "overall_gradient_pct": 8.978688590504975,
 "accumulated_ascent_m": 48.43462169258356,
 "window_maxima": {
  "max_5m": {
   "gradient_pct": 33.92693573512247,
   "start_distance_m": 276.0,
   "end_distance_m": 281.0,
   "midpoint_distance_m": 278.5,
   "start_elevation_m": 356.932928984074,
   "end_elevation_m": 358.62927577083013,
   "start_xy": [
    605058.163271179,
    4525691.65770576
   ],
   "end_xy": [
    605056.2245465897,
    4525687.144958674
   ]
  },
  "max_10m": {
   "gradient_pct": 26.35132168973371,
   "start_distance_m": 276.0,
   "end_distance_m": 286.0,
   "midpoint_distance_m": 281.0,
   "start_elevation_m": 356.932928984074,
   "end_elevation_m": 359.5680611530474,
   "start_xy": [
    605058.163271179,
    4525691.65770576
   ],
   "end_xy": [
    605056.5477943544,
    4525682.155418526
   ]
  },
  "max_20m": {
   "gradient_pct": 23.197398794876563,
   "start_distance_m": 275.0,
   "end_distance_m": 295.0,
   "midpoint_distance_m": 285.0,
   "start_elevation_m": 356.7365081671916,
   "end_elevation_m": 361.3759879261669,
   "start_xy": [
    605058.6252146496,
    4525692.544615129
   ],
   "end_xy": [
    605057.129640331,
    4525673.174246261
   ]
  },
  "max_25m": {
   "gradient_pct": 22.154190168726473,
   "start_distance_m": 275.0,
   "end_distance_m": 300.0,
   "midpoint_distance_m": 287.5,
   "start_elevation_m": 356.7365081671916,
   "end_elevation_m": 362.2750557093732,
   "start_xy": [
    605058.6252146496,
    4525692.544615129
   ],
   "end_xy": [
    605057.4528880959,
    4525668.184706113
   ]
  },
  "max_50m": {
   "gradient_pct": 18.940818752836662,
   "start_distance_m": 259.0,
   "end_distance_m": 309.0,
   "midpoint_distance_m": 284.0,
   "start_elevation_m": 354.42490567909886,
   "end_elevation_m": 363.8953150555172,
   "start_xy": [
    605066.0163101798,
    4525706.735165043
   ],
   "end_xy": [
    605058.0347340725,
    4525659.203533848
   ]
  },
  "max_100m": {
   "gradient_pct": 18.283465252872872,
   "start_distance_m": 250.0,
   "end_distance_m": 350.0,
   "midpoint_distance_m": 300.0,
   "start_elevation_m": 352.9405188759624,
   "end_elevation_m": 371.2239841288353,
   "start_xy": [
    605070.1738014156,
    4525714.71734937
   ],
   "end_xy": [
    605063.3531831964,
    4525618.665294807
   ]
  }
 },
 "window_minima": {
  "min_5m": {
   "gradient_pct": -17.889165742883506,
   "start_distance_m": 11.0,
   "end_distance_m": 16.0,
   "midpoint_distance_m": 13.5,
   "start_elevation_m": 339.7415882140781,
   "end_elevation_m": 338.8471299269339,
   "start_xy": [
    605043.4915844332,
    4525942.189226561
   ],
   "end_xy": [
    605044.0009409938,
    4525937.215238635
   ]
  },
  "min_10m": {
   "gradient_pct": -17.720198343973266,
   "start_distance_m": 8.0,
   "end_distance_m": 18.0,
   "midpoint_distance_m": 13.0,
   "start_elevation_m": 340.2697482329781,
   "end_elevation_m": 338.49772839858076,
   "start_xy": [
    605043.1859704969,
    4525945.173619318
   ],
   "end_xy": [
    605044.204683618,
    4525935.225643464
   ]
  },
  "min_20m": {
   "gradient_pct": -16.43031044898919,
   "start_distance_m": 3.0,
   "end_distance_m": 23.0,
   "midpoint_distance_m": 13.0,
   "start_elevation_m": 341.0806221158374,
   "end_elevation_m": 337.79456002603956,
   "start_xy": [
    605042.6766139363,
    4525950.147607245
   ],
   "end_xy": [
    605044.7140401786,
    4525930.251655538
   ]
  },
  "min_25m": {
   "gradient_pct": -15.18309330372449,
   "start_distance_m": 3.0,
   "end_distance_m": 28.0,
   "midpoint_distance_m": 15.5,
   "start_elevation_m": 341.0806221158374,
   "end_elevation_m": 337.2848487899063,
   "start_xy": [
    605042.6766139363,
    4525950.147607245
   ],
   "end_xy": [
    605045.2233967391,
    4525925.277667611
   ]
  },
  "min_50m": {
   "gradient_pct": -10.987370114134478,
   "start_distance_m": 0.0,
   "end_distance_m": 50.0,
   "midpoint_distance_m": 25.0,
   "start_elevation_m": 341.25355553491437,
   "end_elevation_m": 335.75987047784713,
   "start_xy": [
    605042.371,
    4525953.132
   ],
   "end_xy": [
    605047.4645656054,
    4525903.392120734
   ]
  },
  "min_100m": {
   "gradient_pct": -5.503718444653487,
   "start_distance_m": 0.0,
   "end_distance_m": 100.0,
   "midpoint_distance_m": 50.0,
   "start_elevation_m": 341.25355553491437,
   "end_elevation_m": 335.7498370902609,
   "start_xy": [
    605042.371,
    4525953.132
   ],
   "end_xy": [
    605056.0394930181,
    4525854.49927779
   ]
  }
 },
 "diagnostic_window_maxima": {
  "max_2m": {
   "gradient_pct": 39.8612797547969,
   "start_distance_m": 278.0,
   "end_distance_m": 280.0,
   "midpoint_distance_m": 279.0,
   "start_elevation_m": 357.54558996852796,
   "end_elevation_m": 358.3428155636239,
   "start_xy": [
    605057.2393842377,
    4525689.88388702
   ],
   "end_xy": [
    605056.3154972964,
    4525688.110068281
   ]
  },
  "max_3m": {
   "gradient_pct": 38.0298912234025,
   "start_distance_m": 277.0,
   "end_distance_m": 280.0,
   "midpoint_distance_m": 278.5,
   "start_elevation_m": 357.2019188269218,
   "end_elevation_m": 358.3428155636239,
   "start_xy": [
    605057.7013277083,
    4525690.77079639
   ],
   "end_xy": [
    605056.3154972964,
    4525688.110068281
   ]
  }
 },
 "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": {
  "review": [],
  "extent": [
   "descends_at_start"
  ]
 },
 "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:26917",
  "elevation_resolution_m": 1.0,
  "elevation_tiles": [
   "data/cache/usa/pa-west/USGS_1M_17_x60y453_PA_WesternPA_2019_D20.tif"
  ],
  "calculated_at": "2026-09-07T14:52:10+00:00",
  "road_source": "OpenStreetMap (local PBF extract)",
  "road_attribution": "\u00a9 OpenStreetMap contributors, ODbL",
  "osm_pbf_path": "data/cache/pbf/pennsylvania-2026-09-07-batch-band1.osm.pbf",
  "osm_snapshot": "",
  "run_id": "pa-run4-260907",
  "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, PA_WesternPA_2019_D20 (collected 2020)",
  "elevation_tile_ids": [
   "x60y453"
  ],
  "climb_origin": "discovered",
  "canopy_check": "unavailable \u2014 EPT corridor failed: PA_WesternPA_2019_D20: HTTP Error 404: Not Found",
  "license": "ODbL-1.0",
  "license_url": "https://howsteep.org/licensing"
 },
 "area": {
  "place": "Clearfield",
  "county": "Pennsylvania"
 }
}