{
 "ocl_version": "0.1.0",
 "name": "Tinkey Road",
 "slug": "tinkey-road",
 "confidence": "A",
 "reported_claims": [],
 "ladder": [
  {
   "window_m": 2.0,
   "max_gradient_pct": 32.92146062702841,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 1330.0,
   "end_distance_m": 1332.0,
   "start_elevation_m": 645.2237789904871,
   "end_elevation_m": 645.8822082030276,
   "min_gradient_pct": -21.578933369465858
  },
  {
   "window_m": 3.0,
   "max_gradient_pct": 29.178147872323734,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 363.0,
   "end_distance_m": 366.0,
   "start_elevation_m": 595.5803769788273,
   "end_elevation_m": 596.455721414997,
   "min_gradient_pct": -19.464882879003653
  },
  {
   "window_m": 5.0,
   "max_gradient_pct": 25.82034082691507,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 362.0,
   "end_distance_m": 367.0,
   "start_elevation_m": 595.3587123419036,
   "end_elevation_m": 596.6497293832493,
   "min_gradient_pct": -17.176144393877166
  },
  {
   "window_m": 10.0,
   "max_gradient_pct": 25.7221332013728,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 362.0,
   "end_distance_m": 372.0,
   "start_elevation_m": 595.3587123419036,
   "end_elevation_m": 597.9309256620409,
   "min_gradient_pct": -15.125633246337884
  },
  {
   "window_m": 20.0,
   "max_gradient_pct": 21.782210457568,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 356.0,
   "end_distance_m": 376.0,
   "start_elevation_m": 594.2365542581185,
   "end_elevation_m": 598.5929963496321,
   "min_gradient_pct": -13.813789811068204
  },
  {
   "window_m": 25.0,
   "max_gradient_pct": 20.163900431035017,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 350.0,
   "end_distance_m": 375.0,
   "start_elevation_m": 593.3987064224528,
   "end_elevation_m": 598.4396815302116,
   "min_gradient_pct": -13.292760911780078
  },
  {
   "window_m": 50.0,
   "max_gradient_pct": 17.975842347721255,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 356.0,
   "end_distance_m": 406.0,
   "start_elevation_m": 594.2365542581185,
   "end_elevation_m": 603.2244754319792,
   "min_gradient_pct": -9.580699998453383
  },
  {
   "window_m": 100.0,
   "max_gradient_pct": 15.365532713753169,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 331.0,
   "end_distance_m": 431.0,
   "start_elevation_m": 591.623562934966,
   "end_elevation_m": 606.9890956487192,
   "min_gradient_pct": -4.445051391004654
  }
 ],
 "shape": {
  "ascent_concentration": 0.451,
  "concentration_window_frac": 0.25,
  "longest_pitch_10pct_m": 97.0,
  "shape_class": "stepped"
 },
 "length_m": 1443.000000000018,
 "start_elevation_m": 559.4946951782298,
 "end_elevation_m": 649.4653277223224,
 "endpoint_gain_m": 89.97063254409261,
 "overall_gradient_pct": 6.23497107027661,
 "accumulated_ascent_m": 99.39930420900328,
 "window_maxima": {
  "max_5m": {
   "gradient_pct": 25.82034082691507,
   "start_distance_m": 362.0,
   "end_distance_m": 367.0,
   "midpoint_distance_m": 364.5,
   "start_elevation_m": 595.3587123419036,
   "end_elevation_m": 596.6497293832493,
   "start_xy": [
    658061.0875222292,
    4422141.381099628
   ],
   "end_xy": [
    658057.166998706,
    4422144.484242439
   ]
  },
  "max_10m": {
   "gradient_pct": 25.7221332013728,
   "start_distance_m": 362.0,
   "end_distance_m": 372.0,
   "midpoint_distance_m": 367.0,
   "start_elevation_m": 595.3587123419036,
   "end_elevation_m": 597.9309256620409,
   "start_xy": [
    658061.0875222292,
    4422141.381099628
   ],
   "end_xy": [
    658053.2464751828,
    4422147.58738525
   ]
  },
  "max_20m": {
   "gradient_pct": 21.782210457568,
   "start_distance_m": 356.0,
   "end_distance_m": 376.0,
   "midpoint_distance_m": 366.0,
   "start_elevation_m": 594.2365542581185,
   "end_elevation_m": 598.5929963496321,
   "start_xy": [
    658065.7921504569,
    4422137.6573282555
   ],
   "end_xy": [
    658050.1100563643,
    4422150.0698994985
   ]
  },
  "max_25m": {
   "gradient_pct": 20.163900431035017,
   "start_distance_m": 350.0,
   "end_distance_m": 375.0,
   "midpoint_distance_m": 362.5,
   "start_elevation_m": 593.3987064224528,
   "end_elevation_m": 598.4396815302116,
   "start_xy": [
    658070.4967786847,
    4422133.933556883
   ],
   "end_xy": [
    658050.894161069,
    4422149.449270937
   ]
  },
  "max_50m": {
   "gradient_pct": 17.975842347721255,
   "start_distance_m": 356.0,
   "end_distance_m": 406.0,
   "midpoint_distance_m": 381.0,
   "start_elevation_m": 594.2365542581185,
   "end_elevation_m": 603.2244754319792,
   "start_xy": [
    658065.7921504569,
    4422137.6573282555
   ],
   "end_xy": [
    658026.5869152254,
    4422168.6887563635
   ]
  },
  "max_100m": {
   "gradient_pct": 15.365532713753169,
   "start_distance_m": 331.0,
   "end_distance_m": 431.0,
   "midpoint_distance_m": 381.0,
   "start_elevation_m": 591.623562934966,
   "end_elevation_m": 606.9890956487192,
   "start_xy": [
    658084.6311059485,
    4422121.282213315
   ],
   "end_xy": [
    658006.9842976097,
    4422184.204470417
   ]
  }
 },
 "window_minima": {
  "min_5m": {
   "gradient_pct": -17.176144393877166,
   "start_distance_m": 682.0,
   "end_distance_m": 687.0,
   "midpoint_distance_m": 684.5,
   "start_elevation_m": 623.4719013522254,
   "end_elevation_m": 622.6130941325315,
   "start_xy": [
    657851.8577300209,
    4422378.210614892
   ],
   "end_xy": [
    657848.81241058,
    4422382.176220709
   ]
  },
  "min_10m": {
   "gradient_pct": -15.125633246337884,
   "start_distance_m": 682.0,
   "end_distance_m": 692.0,
   "midpoint_distance_m": 687.0,
   "start_elevation_m": 623.4719013522254,
   "end_elevation_m": 621.9593380275916,
   "start_xy": [
    657851.8577300209,
    4422378.210614892
   ],
   "end_xy": [
    657845.7670911391,
    4422386.141826527
   ]
  },
  "min_20m": {
   "gradient_pct": -13.813789811068204,
   "start_distance_m": 672.0,
   "end_distance_m": 692.0,
   "midpoint_distance_m": 682.0,
   "start_elevation_m": 624.7220959898052,
   "end_elevation_m": 621.9593380275916,
   "start_xy": [
    657857.9483689026,
    4422370.279403255
   ],
   "end_xy": [
    657845.7670911391,
    4422386.141826527
   ]
  },
  "min_25m": {
   "gradient_pct": -13.292760911780078,
   "start_distance_m": 666.0,
   "end_distance_m": 691.0,
   "midpoint_distance_m": 678.5,
   "start_elevation_m": 625.412733205764,
   "end_elevation_m": 622.089542977819,
   "start_xy": [
    657861.6027522316,
    4422365.520676274
   ],
   "end_xy": [
    657846.3761550273,
    4422385.348705363
   ]
  },
  "min_50m": {
   "gradient_pct": -9.580699998453383,
   "start_distance_m": 645.0,
   "end_distance_m": 695.0,
   "midpoint_distance_m": 670.0,
   "start_elevation_m": 626.539253350521,
   "end_elevation_m": 621.7489033512943,
   "start_xy": [
    657874.3930938833,
    4422348.865131839
   ],
   "end_xy": [
    657843.9398994745,
    4422388.521190018
   ]
  },
  "min_100m": {
   "gradient_pct": -4.445051391004654,
   "start_distance_m": 616.0,
   "end_distance_m": 716.0,
   "midpoint_distance_m": 666.0,
   "start_elevation_m": 626.3184413886338,
   "end_elevation_m": 621.8733899976291,
   "start_xy": [
    657892.0559466404,
    4422325.864618095
   ],
   "end_xy": [
    657831.1495578228,
    4422405.176734453
   ]
  }
 },
 "diagnostic_window_maxima": {
  "max_2m": {
   "gradient_pct": 32.92146062702841,
   "start_distance_m": 1330.0,
   "end_distance_m": 1332.0,
   "midpoint_distance_m": 1331.0,
   "start_elevation_m": 645.2237789904871,
   "end_elevation_m": 645.8822082030276,
   "start_xy": [
    657353.6936153921,
    4422739.656461757
   ],
   "end_xy": [
    657352.295946889,
    4422741.087029041
   ]
  },
  "max_3m": {
   "gradient_pct": 29.178147872323734,
   "start_distance_m": 363.0,
   "end_distance_m": 366.0,
   "midpoint_distance_m": 364.5,
   "start_elevation_m": 595.5803769788273,
   "end_elevation_m": 596.455721414997,
   "start_xy": [
    658060.3034175246,
    4422142.00172819
   ],
   "end_xy": [
    658057.9511034106,
    4422143.863613877
   ]
  }
 },
 "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": []
 },
 "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_x65y443_PA_WesternPA_2019_D20.tif"
  ],
  "calculated_at": "2026-09-07T16:25:10+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-band2.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": [
   "x65y443"
  ],
  "route_summit_trim_m": 652.3,
  "route_summit_trim_loss_m": 10.0,
  "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": "Milford",
  "county": "Pennsylvania"
 }
}