{
 "ocl_version": "0.1.0",
 "name": "Creveling Road",
 "slug": "creveling-road",
 "confidence": "B",
 "reported_claims": [],
 "ladder": [
  {
   "window_m": 2.0,
   "max_gradient_pct": 28.92165103030493,
   "diagnostic": true,
   "flags": [
    "texture_excluded"
   ],
   "start_distance_m": 88.0,
   "end_distance_m": 90.0,
   "start_elevation_m": 325.6286715067437,
   "end_elevation_m": 326.20710452734977,
   "min_gradient_pct": -14.273139422550685,
   "suppressed_max_gradient_pct": 54.486292521730206,
   "suppressed_location_m": [
    456.0,
    458.0
   ]
  },
  {
   "window_m": 3.0,
   "max_gradient_pct": 26.976582506466684,
   "diagnostic": true,
   "flags": [
    "texture_excluded"
   ],
   "start_distance_m": 87.0,
   "end_distance_m": 90.0,
   "start_elevation_m": 325.39780705215577,
   "end_elevation_m": 326.20710452734977,
   "min_gradient_pct": -10.514694799407684,
   "suppressed_max_gradient_pct": 53.33488377121777,
   "suppressed_location_m": [
    456.0,
    459.0
   ]
  },
  {
   "window_m": 5.0,
   "max_gradient_pct": 21.569641783939915,
   "diagnostic": false,
   "flags": [
    "texture_excluded"
   ],
   "start_distance_m": 876.0,
   "end_distance_m": 881.0,
   "start_elevation_m": 414.25490909771725,
   "end_elevation_m": 415.33339118691424,
   "min_gradient_pct": -9.151244280827768,
   "suppressed_max_gradient_pct": 49.26913617719606,
   "suppressed_location_m": [
    455.0,
    460.0
   ]
  },
  {
   "window_m": 10.0,
   "max_gradient_pct": 20.055712765595217,
   "diagnostic": false,
   "flags": [
    "texture_excluded"
   ],
   "start_distance_m": 201.0,
   "end_distance_m": 211.0,
   "start_elevation_m": 339.00316856702466,
   "end_elevation_m": 341.0087398435842,
   "min_gradient_pct": -8.463899776986636,
   "suppressed_max_gradient_pct": 37.50073124740652,
   "suppressed_location_m": [
    453.0,
    463.0
   ]
  },
  {
   "window_m": 20.0,
   "max_gradient_pct": 19.814829042600195,
   "diagnostic": false,
   "flags": [
    "texture_excluded"
   ],
   "start_distance_m": 195.0,
   "end_distance_m": 215.0,
   "start_elevation_m": 337.82848031157647,
   "end_elevation_m": 341.7914461200965,
   "min_gradient_pct": -7.698993848957798,
   "suppressed_max_gradient_pct": 25.51564838342074,
   "suppressed_location_m": [
    446.0,
    466.0
   ]
  },
  {
   "window_m": 25.0,
   "max_gradient_pct": 19.675032518937087,
   "diagnostic": false,
   "flags": [
    "texture_excluded"
   ],
   "start_distance_m": 193.0,
   "end_distance_m": 218.0,
   "start_elevation_m": 337.4508307679688,
   "end_elevation_m": 342.36958889770307,
   "min_gradient_pct": -7.251191740247805,
   "suppressed_max_gradient_pct": 22.887903447371855,
   "suppressed_location_m": [
    441.0,
    466.0
   ]
  },
  {
   "window_m": 50.0,
   "max_gradient_pct": 18.65304859861294,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 179.0,
   "end_distance_m": 229.0,
   "start_elevation_m": 335.0131423234124,
   "end_elevation_m": 344.3396666227189,
   "min_gradient_pct": -6.717930866574989
  },
  {
   "window_m": 100.0,
   "max_gradient_pct": 17.056912541506676,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 150.0,
   "end_distance_m": 250.0,
   "start_elevation_m": 330.4853599926005,
   "end_elevation_m": 347.54227253410716,
   "min_gradient_pct": -5.606393807023039
  }
 ],
 "shape": {
  "ascent_concentration": 0.623,
  "concentration_window_frac": 0.25,
  "longest_pitch_10pct_m": 169.0,
  "shape_class": "stepped"
 },
 "length_m": 2667.2689619807065,
 "start_elevation_m": 323.4971766929611,
 "end_elevation_m": 426.93352015576284,
 "endpoint_gain_m": 103.43634346280174,
 "overall_gradient_pct": 3.87798699483198,
 "accumulated_ascent_m": 126.63675123114251,
 "window_maxima": {
  "max_5m": {
   "gradient_pct": 21.569641783939915,
   "start_distance_m": 876.0,
   "end_distance_m": 881.0,
   "midpoint_distance_m": 878.5,
   "start_elevation_m": 414.25490909771725,
   "end_elevation_m": 415.33339118691424,
   "start_xy": [
    575273.3314001604,
    4600599.470818447
   ],
   "end_xy": [
    575277.2600427073,
    4600602.56367566
   ]
  },
  "max_10m": {
   "gradient_pct": 20.055712765595217,
   "start_distance_m": 201.0,
   "end_distance_m": 211.0,
   "midpoint_distance_m": 206.0,
   "start_elevation_m": 339.00316856702466,
   "end_elevation_m": 341.0087398435842,
   "start_xy": [
    574752.9353939168,
    4600170.872510001
   ],
   "end_xy": [
    574761.329800248,
    4600176.264081345
   ]
  },
  "max_20m": {
   "gradient_pct": 19.814829042600195,
   "start_distance_m": 195.0,
   "end_distance_m": 215.0,
   "midpoint_distance_m": 205.0,
   "start_elevation_m": 337.82848031157647,
   "end_elevation_m": 341.7914461200965,
   "start_xy": [
    574747.6962412348,
    4600167.948253701
   ],
   "end_xy": [
    574764.511248483,
    4600178.688619599
   ]
  },
  "max_25m": {
   "gradient_pct": 19.675032518937087,
   "start_distance_m": 193.0,
   "end_distance_m": 218.0,
   "midpoint_distance_m": 205.5,
   "start_elevation_m": 337.4508307679688,
   "end_elevation_m": 342.36958889770307,
   "start_xy": [
    574745.9500538488,
    4600166.973149168
   ],
   "end_xy": [
    574766.8974142128,
    4600180.506918776
   ]
  },
  "max_50m": {
   "gradient_pct": 18.65304859861294,
   "start_distance_m": 179.0,
   "end_distance_m": 229.0,
   "midpoint_distance_m": 204.0,
   "start_elevation_m": 335.0131423234124,
   "end_elevation_m": 344.3396666227189,
   "start_xy": [
    574733.7261945438,
    4600160.148398554
   ],
   "end_xy": [
    574775.5967762201,
    4600187.234891707
   ]
  },
  "max_100m": {
   "gradient_pct": 17.056912541506676,
   "start_distance_m": 150.0,
   "end_distance_m": 250.0,
   "midpoint_distance_m": 200.0,
   "start_elevation_m": 330.4853599926005,
   "end_elevation_m": 347.54227253410716,
   "start_xy": [
    574710.0533562455,
    4600143.446045617
   ],
   "end_xy": [
    574790.723869395,
    4600201.800981263
   ]
  }
 },
 "window_minima": {
  "min_5m": {
   "gradient_pct": -9.151244280827768,
   "start_distance_m": 1569.0,
   "end_distance_m": 1574.0,
   "midpoint_distance_m": 1571.5,
   "start_elevation_m": 402.2279902986664,
   "end_elevation_m": 401.770428084625,
   "start_xy": [
    575908.0290316793,
    4600849.493267383
   ],
   "end_xy": [
    575912.8455433092,
    4600850.8353585135
   ]
  },
  "min_10m": {
   "gradient_pct": -8.463899776986636,
   "start_distance_m": 1565.0,
   "end_distance_m": 1575.0,
   "midpoint_distance_m": 1570.0,
   "start_elevation_m": 402.52890898260375,
   "end_elevation_m": 401.6825190049051,
   "start_xy": [
    575904.1756047377,
    4600848.420375591
   ],
   "end_xy": [
    575913.8089907302,
    4600851.103255987
   ]
  },
  "min_20m": {
   "gradient_pct": -7.698993848957798,
   "start_distance_m": 1562.0,
   "end_distance_m": 1582.0,
   "midpoint_distance_m": 1572.0,
   "start_elevation_m": 402.756780877068,
   "end_elevation_m": 401.21698210727646,
   "start_xy": [
    575901.2858360345,
    4600847.614624371
   ],
   "end_xy": [
    575920.552290952,
    4600852.98152364
   ]
  },
  "min_25m": {
   "gradient_pct": -7.251191740247805,
   "start_distance_m": 1558.0,
   "end_distance_m": 1583.0,
   "midpoint_distance_m": 1570.5,
   "start_elevation_m": 402.9795168321308,
   "end_elevation_m": 401.16671889706885,
   "start_xy": [
    575897.4325018858,
    4600846.54139824
   ],
   "end_xy": [
    575921.5154818806,
    4600853.250341436
   ]
  },
  "min_50m": {
   "gradient_pct": -6.717930866574989,
   "start_distance_m": 1558.0,
   "end_distance_m": 1608.0,
   "midpoint_distance_m": 1583.0,
   "start_elevation_m": 402.9795168321308,
   "end_elevation_m": 399.6205513988433,
   "start_xy": [
    575897.4325018858,
    4600846.54139824
   ],
   "end_xy": [
    575945.5984498909,
    4600859.9593325425
   ]
  },
  "min_100m": {
   "gradient_pct": -5.606393807023039,
   "start_distance_m": 1536.0,
   "end_distance_m": 1636.0,
   "midpoint_distance_m": 1586.0,
   "start_elevation_m": 404.15144206557363,
   "end_elevation_m": 398.5450482585506,
   "start_xy": [
    575876.2394672107,
    4600840.637572876
   ],
   "end_xy": [
    575972.5235883506,
    4600867.6413209895
   ]
  }
 },
 "diagnostic_window_maxima": {
  "max_2m": {
   "gradient_pct": 28.92165103030493,
   "start_distance_m": 88.0,
   "end_distance_m": 90.0,
   "midpoint_distance_m": 89.0,
   "start_elevation_m": 325.6286715067437,
   "end_elevation_m": 326.20710452734977,
   "start_xy": [
    574679.4402016568,
    4600098.94162548
   ],
   "end_xy": [
    574678.8574400591,
    4600100.854839531
   ]
  },
  "max_3m": {
   "gradient_pct": 26.976582506466684,
   "start_distance_m": 87.0,
   "end_distance_m": 90.0,
   "midpoint_distance_m": 88.5,
   "start_elevation_m": 325.39780705215577,
   "end_elevation_m": 326.20710452734977,
   "start_xy": [
    574679.7314023278,
    4600097.984963487
   ],
   "end_xy": [
    574678.8574400591,
    4600100.854839531
   ]
  }
 },
 "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": 0.006,
   "windows_resited": [
    2.0,
    3.0,
    5.0,
    10.0,
    20.0,
    25.0
   ],
   "windows_unresolved": []
  },
  "texture_windows": {
   "rounds": 1,
   "windows_masked": [
    {
     "window_m": 10.0,
     "start_m": 453.0,
     "end_m": 463.0,
     "raw_pct": 37.5,
     "reason": "short-step"
    }
   ],
   "advisory": []
  },
  "excluded_ranges_m": [
   [
    451.0,
    465.0
   ]
  ],
  "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:26917",
  "elevation_resolution_m": 1.0,
  "elevation_tiles": [
   "data/cache/usa/pa-west/USGS_1M_17_x57y460_PA_WesternPA_2019_D20.tif",
   "data/cache/usa/pa-west/USGS_1M_17_x57y461_PA_WesternPA_2019_D20.tif"
  ],
  "calculated_at": "2026-09-11T22:38:51+00:00",
  "road_source": "OpenStreetMap (local PBF extract)",
  "road_attribution": "\u00a9 OpenStreetMap contributors, ODbL",
  "osm_pbf_path": "output/texture-us-pa/batch-usa-rchunk04.pbf",
  "osm_snapshot": "",
  "run_id": "texture-us-pa-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, PA_WesternPA_2019_D20 (collected 2020)",
  "elevation_tile_ids": [
   "x57y460",
   "x57y461"
  ],
  "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": "East Fairfield",
  "county": "Pennsylvania"
 }
}