{
 "ocl_version": "0.1.0",
 "name": "Rubisch Road",
 "slug": "rubisch-road",
 "confidence": "A",
 "reported_claims": [],
 "ladder": [
  {
   "window_m": 2.0,
   "max_gradient_pct": 30.512165525021828,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 179.0,
   "end_distance_m": 181.0,
   "start_elevation_m": 609.1502721474294,
   "end_elevation_m": 609.7605154579298,
   "min_gradient_pct": -18.958898919464673
  },
  {
   "window_m": 3.0,
   "max_gradient_pct": 29.500855981253455,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 182.0,
   "end_distance_m": 185.0,
   "start_elevation_m": 610.0075112795668,
   "end_elevation_m": 610.8925369590044,
   "min_gradient_pct": -14.902836409873998
  },
  {
   "window_m": 5.0,
   "max_gradient_pct": 29.157030780952482,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 180.0,
   "end_distance_m": 185.0,
   "start_elevation_m": 609.4346854199567,
   "end_elevation_m": 610.8925369590044,
   "min_gradient_pct": -9.405172324843534
  },
  {
   "window_m": 10.0,
   "max_gradient_pct": 26.229520479474786,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 175.0,
   "end_distance_m": 185.0,
   "start_elevation_m": 608.2695849110569,
   "end_elevation_m": 610.8925369590044,
   "min_gradient_pct": -8.766550774331563
  },
  {
   "window_m": 20.0,
   "max_gradient_pct": 24.655772990938658,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 165.0,
   "end_distance_m": 185.0,
   "start_elevation_m": 605.9613823608166,
   "end_elevation_m": 610.8925369590044,
   "min_gradient_pct": -8.01215085770707
  },
  {
   "window_m": 25.0,
   "max_gradient_pct": 23.567842418442524,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 160.0,
   "end_distance_m": 185.0,
   "start_elevation_m": 605.0005763543937,
   "end_elevation_m": 610.8925369590044,
   "min_gradient_pct": -7.682875977046024
  },
  {
   "window_m": 50.0,
   "max_gradient_pct": 19.460320536350082,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 136.0,
   "end_distance_m": 186.0,
   "start_elevation_m": 601.3401845339184,
   "end_elevation_m": 611.0703448020935,
   "min_gradient_pct": -6.7994993668523875
  },
  {
   "window_m": 100.0,
   "max_gradient_pct": 15.425479399703818,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 108.0,
   "end_distance_m": 208.0,
   "start_elevation_m": 598.0413528187319,
   "end_elevation_m": 613.4668322184357,
   "min_gradient_pct": -5.6273819955706585
  }
 ],
 "shape": {
  "ascent_concentration": 0.483,
  "concentration_window_frac": 0.25,
  "longest_pitch_10pct_m": 292.0,
  "shape_class": "stepped"
 },
 "length_m": 1283.9999999999966,
 "start_elevation_m": 589.7858026938482,
 "end_elevation_m": 675.0474508545319,
 "endpoint_gain_m": 85.26164816068376,
 "overall_gradient_pct": 6.640315277311837,
 "accumulated_ascent_m": 94.74646177455782,
 "window_maxima": {
  "max_5m": {
   "gradient_pct": 29.157030780952482,
   "start_distance_m": 180.0,
   "end_distance_m": 185.0,
   "midpoint_distance_m": 182.5,
   "start_elevation_m": 609.4346854199567,
   "end_elevation_m": 610.8925369590044,
   "start_xy": [
    693516.3043096809,
    4483266.116592154
   ],
   "end_xy": [
    693520.6771141951,
    4483263.6920137
   ]
  },
  "max_10m": {
   "gradient_pct": 26.229520479474786,
   "start_distance_m": 175.0,
   "end_distance_m": 185.0,
   "midpoint_distance_m": 180.0,
   "start_elevation_m": 608.2695849110569,
   "end_elevation_m": 610.8925369590044,
   "start_xy": [
    693511.9315051669,
    4483268.541170608
   ],
   "end_xy": [
    693520.6771141951,
    4483263.6920137
   ]
  },
  "max_20m": {
   "gradient_pct": 24.655772990938658,
   "start_distance_m": 165.0,
   "end_distance_m": 185.0,
   "midpoint_distance_m": 175.0,
   "start_elevation_m": 605.9613823608166,
   "end_elevation_m": 610.8925369590044,
   "start_xy": [
    693503.1858961387,
    4483273.390327517
   ],
   "end_xy": [
    693520.6771141951,
    4483263.6920137
   ]
  },
  "max_25m": {
   "gradient_pct": 23.567842418442524,
   "start_distance_m": 160.0,
   "end_distance_m": 185.0,
   "midpoint_distance_m": 172.5,
   "start_elevation_m": 605.0005763543937,
   "end_elevation_m": 610.8925369590044,
   "start_xy": [
    693498.8130916246,
    4483275.814905971
   ],
   "end_xy": [
    693520.6771141951,
    4483263.6920137
   ]
  },
  "max_50m": {
   "gradient_pct": 19.460320536350082,
   "start_distance_m": 136.0,
   "end_distance_m": 186.0,
   "midpoint_distance_m": 161.0,
   "start_elevation_m": 601.3401845339184,
   "end_elevation_m": 611.0703448020935,
   "start_xy": [
    693477.823629957,
    4483287.4528825525
   ],
   "end_xy": [
    693521.5516750979,
    4483263.207098008
   ]
  },
  "max_100m": {
   "gradient_pct": 15.425479399703818,
   "start_distance_m": 108.0,
   "end_distance_m": 208.0,
   "midpoint_distance_m": 158.0,
   "start_elevation_m": 598.0413528187319,
   "end_elevation_m": 613.4668322184357,
   "start_xy": [
    693453.1178425098,
    4483300.611133869
   ],
   "end_xy": [
    693540.7920149599,
    4483252.538952809
   ]
  }
 },
 "window_minima": {
  "min_5m": {
   "gradient_pct": -9.405172324843534,
   "start_distance_m": 786.0,
   "end_distance_m": 791.0,
   "midpoint_distance_m": 788.5,
   "start_elevation_m": 651.4516818352529,
   "end_elevation_m": 650.9814232190107,
   "start_xy": [
    693889.7216734868,
    4482823.678673477
   ],
   "end_xy": [
    693892.181023203,
    4482819.3253300525
   ]
  },
  "min_10m": {
   "gradient_pct": -8.766550774331563,
   "start_distance_m": 781.0,
   "end_distance_m": 791.0,
   "midpoint_distance_m": 786.0,
   "start_elevation_m": 651.8580782964439,
   "end_elevation_m": 650.9814232190107,
   "start_xy": [
    693887.2623237707,
    4482828.032016902
   ],
   "end_xy": [
    693892.181023203,
    4482819.3253300525
   ]
  },
  "min_20m": {
   "gradient_pct": -8.01215085770707,
   "start_distance_m": 772.0,
   "end_distance_m": 792.0,
   "midpoint_distance_m": 782.0,
   "start_elevation_m": 652.5160061876452,
   "end_elevation_m": 650.9135760161038,
   "start_xy": [
    693882.8354942816,
    4482835.868035067
   ],
   "end_xy": [
    693892.6728931462,
    4482818.454661367
   ]
  },
  "min_25m": {
   "gradient_pct": -7.682875977046024,
   "start_distance_m": 768.0,
   "end_distance_m": 793.0,
   "midpoint_distance_m": 780.5,
   "start_elevation_m": 652.7680568351872,
   "end_elevation_m": 650.8473378409257,
   "start_xy": [
    693880.8680145087,
    4482839.350709806
   ],
   "end_xy": [
    693893.1647630894,
    4482817.583992682
   ]
  },
  "min_50m": {
   "gradient_pct": -6.7994993668523875,
   "start_distance_m": 751.0,
   "end_distance_m": 801.0,
   "midpoint_distance_m": 776.0,
   "start_elevation_m": 653.7538588324338,
   "end_elevation_m": 650.3541091490076,
   "start_xy": [
    693872.5062254738,
    4482854.15207745
   ],
   "end_xy": [
    693898.727097231,
    4482812.49769254
   ]
  },
  "min_100m": {
   "gradient_pct": -5.6273819955706585,
   "start_distance_m": 704.0,
   "end_distance_m": 804.0,
   "midpoint_distance_m": 754.0,
   "start_elevation_m": 655.8663239834895,
   "end_elevation_m": 650.2389419879188,
   "start_xy": [
    693849.3897582885,
    4482895.0743078925
   ],
   "end_xy": [
    693901.5230677926,
    4482811.410242028
   ]
  }
 },
 "diagnostic_window_maxima": {
  "max_2m": {
   "gradient_pct": 30.512165525021828,
   "start_distance_m": 179.0,
   "end_distance_m": 181.0,
   "midpoint_distance_m": 180.0,
   "start_elevation_m": 609.1502721474294,
   "end_elevation_m": 609.7605154579298,
   "start_xy": [
    693515.4297487781,
    4483266.601507844
   ],
   "end_xy": [
    693517.1788705838,
    4483265.631676463
   ]
  },
  "max_3m": {
   "gradient_pct": 29.500855981253455,
   "start_distance_m": 182.0,
   "end_distance_m": 185.0,
   "midpoint_distance_m": 183.5,
   "start_elevation_m": 610.0075112795668,
   "end_elevation_m": 610.8925369590044,
   "start_xy": [
    693518.0534314866,
    4483265.146760772
   ],
   "end_xy": [
    693520.6771141951,
    4483263.6920137
   ]
  }
 },
 "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_x69y449_PA_WesternPA_2019_D20.tif"
  ],
  "calculated_at": "2026-09-07T16:28:03+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": [
   "x69y449"
  ],
  "route_summit_trim_m": 247.5,
  "route_summit_trim_loss_m": 23.3,
  "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": "Cambria",
  "county": "Pennsylvania"
 }
}