{
 "ocl_version": "0.1.0",
 "name": "Sky View Road",
 "slug": "sky-view-road",
 "confidence": "A",
 "reported_claims": [],
 "ladder": [
  {
   "window_m": 2.0,
   "max_gradient_pct": 24.964334191804483,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 348.0,
   "end_distance_m": 350.0,
   "start_elevation_m": 561.4420405845256,
   "end_elevation_m": 561.9413272683616,
   "min_gradient_pct": 2.1243312139404225
  },
  {
   "window_m": 3.0,
   "max_gradient_pct": 23.636992166783937,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 324.0,
   "end_distance_m": 327.0,
   "start_elevation_m": 556.489882301167,
   "end_elevation_m": 557.1989920661705,
   "min_gradient_pct": 2.862717382189809
  },
  {
   "window_m": 5.0,
   "max_gradient_pct": 23.024379133403272,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 324.0,
   "end_distance_m": 329.0,
   "start_elevation_m": 556.489882301167,
   "end_elevation_m": 557.6411012578371,
   "min_gradient_pct": 3.475552665388477
  },
  {
   "window_m": 10.0,
   "max_gradient_pct": 22.301313672799097,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 324.0,
   "end_distance_m": 334.0,
   "start_elevation_m": 556.489882301167,
   "end_elevation_m": 558.7200136684469,
   "min_gradient_pct": 3.7602304541371723
  },
  {
   "window_m": 20.0,
   "max_gradient_pct": 21.286701324165733,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 324.0,
   "end_distance_m": 344.0,
   "start_elevation_m": 556.489882301167,
   "end_elevation_m": 560.7472225660001,
   "min_gradient_pct": 3.874176886520786
  },
  {
   "window_m": 25.0,
   "max_gradient_pct": 20.793547638069413,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 325.0,
   "end_distance_m": 350.0,
   "start_elevation_m": 556.7429403588443,
   "end_elevation_m": 561.9413272683616,
   "min_gradient_pct": 3.9106204611971407
  },
  {
   "window_m": 50.0,
   "max_gradient_pct": 20.172843633030652,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 323.0,
   "end_distance_m": 373.0,
   "start_elevation_m": 556.3040053775507,
   "end_elevation_m": 566.390427194066,
   "min_gradient_pct": 4.142411476727375
  },
  {
   "window_m": 100.0,
   "max_gradient_pct": 17.826458302714855,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 316.0,
   "end_distance_m": 416.0,
   "start_elevation_m": 555.2014150360598,
   "end_elevation_m": 573.0278733387746,
   "min_gradient_pct": 7.038376490142696
  }
 ],
 "shape": {
  "ascent_concentration": 0.347,
  "concentration_window_frac": 0.25,
  "longest_pitch_10pct_m": 331.0,
  "shape_class": "sustained"
 },
 "length_m": 536.3577172099787,
 "start_elevation_m": 517.3292127639818,
 "end_elevation_m": 582.4819038320398,
 "endpoint_gain_m": 65.15269106805806,
 "overall_gradient_pct": 12.147245947530841,
 "accumulated_ascent_m": 65.15269106805806,
 "window_maxima": {
  "max_5m": {
   "gradient_pct": 23.024379133403272,
   "start_distance_m": 324.0,
   "end_distance_m": 329.0,
   "midpoint_distance_m": 326.5,
   "start_elevation_m": 556.489882301167,
   "end_elevation_m": 557.6411012578371,
   "start_xy": [
    644911.2284422145,
    4441549.669006986
   ],
   "end_xy": [
    644915.456217619,
    4441546.999566009
   ]
  },
  "max_10m": {
   "gradient_pct": 22.301313672799097,
   "start_distance_m": 324.0,
   "end_distance_m": 334.0,
   "midpoint_distance_m": 329.0,
   "start_elevation_m": 556.489882301167,
   "end_elevation_m": 558.7200136684469,
   "start_xy": [
    644911.2284422145,
    4441549.669006986
   ],
   "end_xy": [
    644919.6839930236,
    4441544.330125032
   ]
  },
  "max_20m": {
   "gradient_pct": 21.286701324165733,
   "start_distance_m": 324.0,
   "end_distance_m": 344.0,
   "midpoint_distance_m": 334.0,
   "start_elevation_m": 556.489882301167,
   "end_elevation_m": 560.7472225660001,
   "start_xy": [
    644911.2284422145,
    4441549.669006986
   ],
   "end_xy": [
    644928.1395438325,
    4441538.991243078
   ]
  },
  "max_25m": {
   "gradient_pct": 20.793547638069413,
   "start_distance_m": 325.0,
   "end_distance_m": 350.0,
   "midpoint_distance_m": 337.5,
   "start_elevation_m": 556.7429403588443,
   "end_elevation_m": 561.9413272683616,
   "start_xy": [
    644912.0739972955,
    4441549.13511879
   ],
   "end_xy": [
    644933.2128743179,
    4441535.787913905
   ]
  },
  "max_50m": {
   "gradient_pct": 20.172843633030652,
   "start_distance_m": 323.0,
   "end_distance_m": 373.0,
   "midpoint_distance_m": 348.0,
   "start_elevation_m": 556.3040053775507,
   "end_elevation_m": 566.390427194066,
   "start_xy": [
    644910.3828871336,
    4441550.202895181
   ],
   "end_xy": [
    644952.6606411786,
    4441523.508485412
   ]
  },
  "max_100m": {
   "gradient_pct": 17.826458302714855,
   "start_distance_m": 316.0,
   "end_distance_m": 416.0,
   "midpoint_distance_m": 366.0,
   "start_elevation_m": 555.2014150360598,
   "end_elevation_m": 573.0278733387746,
   "start_xy": [
    644904.811136048,
    4441554.427047106
   ],
   "end_xy": [
    644984.1771375944,
    4441494.395997388
   ]
  }
 },
 "window_minima": {
  "min_5m": {
   "gradient_pct": 3.475552665388477,
   "start_distance_m": 103.0,
   "end_distance_m": 108.0,
   "midpoint_distance_m": 105.5,
   "start_elevation_m": 527.3265757665956,
   "end_elevation_m": 527.500353399865,
   "start_xy": [
    644777.1743063873,
    4441720.288312774
   ],
   "end_xy": [
    644780.3829290322,
    4441716.4536366835
   ]
  },
  "min_10m": {
   "gradient_pct": 3.7602304541371723,
   "start_distance_m": 496.0,
   "end_distance_m": 506.0,
   "midpoint_distance_m": 501.0,
   "start_elevation_m": 580.4934023530624,
   "end_elevation_m": 580.8694253984761,
   "start_xy": [
    645042.517894691,
    4441439.841588255
   ],
   "end_xy": [
    645050.8943936595,
    4441434.379513097
   ]
  },
  "min_20m": {
   "gradient_pct": 3.874176886520786,
   "start_distance_m": 496.0,
   "end_distance_m": 516.0,
   "midpoint_distance_m": 506.0,
   "start_elevation_m": 580.4934023530624,
   "end_elevation_m": 581.2682377303665,
   "start_xy": [
    645042.517894691,
    4441439.841588255
   ],
   "end_xy": [
    645059.9495965715,
    4441430.879272791
   ]
  },
  "min_25m": {
   "gradient_pct": 3.9106204611971407,
   "start_distance_m": 495.0,
   "end_distance_m": 520.0,
   "midpoint_distance_m": 507.5,
   "start_elevation_m": 580.4516153626702,
   "end_elevation_m": 581.4292704779695,
   "start_xy": [
    645041.6802447941,
    4441440.387795771
   ],
   "end_xy": [
    645063.9340125489,
    4441430.526527388
   ]
  },
  "min_50m": {
   "gradient_pct": 4.142411476727375,
   "start_distance_m": 473.0,
   "end_distance_m": 523.0,
   "midpoint_distance_m": 498.0,
   "start_elevation_m": 579.504873632704,
   "end_elevation_m": 581.5760793710676,
   "start_xy": [
    645025.0994464462,
    4441454.717733336
   ],
   "end_xy": [
    645066.922324532,
    4441430.261968335
   ]
  },
  "min_100m": {
   "gradient_pct": 7.038376490142696,
   "start_distance_m": 436.0,
   "end_distance_m": 536.0,
   "midpoint_distance_m": 486.0,
   "start_elevation_m": 575.4158224796328,
   "end_elevation_m": 582.4541989697755,
   "start_xy": [
    644998.5358424548,
    4441480.4737994755
   ],
   "end_xy": [
    645079.8716764583,
    4441429.115545775
   ]
  }
 },
 "diagnostic_window_maxima": {
  "max_2m": {
   "gradient_pct": 24.964334191804483,
   "start_distance_m": 348.0,
   "end_distance_m": 350.0,
   "midpoint_distance_m": 349.0,
   "start_elevation_m": 561.4420405845256,
   "end_elevation_m": 561.9413272683616,
   "start_xy": [
    644931.5217641562,
    4441536.855690297
   ],
   "end_xy": [
    644933.2128743179,
    4441535.787913905
   ]
  },
  "max_3m": {
   "gradient_pct": 23.636992166783937,
   "start_distance_m": 324.0,
   "end_distance_m": 327.0,
   "midpoint_distance_m": 325.5,
   "start_elevation_m": 556.489882301167,
   "end_elevation_m": 557.1989920661705,
   "start_xy": [
    644911.2284422145,
    4441549.669006986
   ],
   "end_xy": [
    644913.7651074573,
    4441548.0673424
   ]
  }
 },
 "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": [
   "may_start_earlier"
  ]
 },
 "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_x64y445_PA_WesternPA_2019_D20.tif"
  ],
  "calculated_at": "2026-09-07T15:20:58+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": [
   "x64y445"
  ],
  "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": "Donegal",
  "county": "Pennsylvania"
 }
}