{
 "ocl_version": "0.1.0",
 "name": "Dornbush Street",
 "slug": "dornbush-street",
 "confidence": "A",
 "reported_claims": [],
 "ladder": [
  {
   "window_m": 2.0,
   "max_gradient_pct": 32.66613726252103,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 83.0,
   "end_distance_m": 85.0,
   "start_elevation_m": 316.0339634814675,
   "end_elevation_m": 316.6872862267179,
   "min_gradient_pct": -1.9570499874561165
  },
  {
   "window_m": 3.0,
   "max_gradient_pct": 32.342474390439214,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 83.0,
   "end_distance_m": 86.0,
   "start_elevation_m": 316.0339634814675,
   "end_elevation_m": 317.00423771318066,
   "min_gradient_pct": -1.7732108467820733
  },
  {
   "window_m": 5.0,
   "max_gradient_pct": 31.082612763348152,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 83.0,
   "end_distance_m": 88.0,
   "start_elevation_m": 316.0339634814675,
   "end_elevation_m": 317.5880941196349,
   "min_gradient_pct": -1.1123769143171103
  },
  {
   "window_m": 10.0,
   "max_gradient_pct": 30.020129063191234,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 78.0,
   "end_distance_m": 88.0,
   "start_elevation_m": 314.58608121331577,
   "end_elevation_m": 317.5880941196349,
   "min_gradient_pct": 0.7341765448160231
  },
  {
   "window_m": 20.0,
   "max_gradient_pct": 29.089707704345074,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 83.0,
   "end_distance_m": 103.0,
   "start_elevation_m": 316.0339634814675,
   "end_elevation_m": 321.8519050223365,
   "min_gradient_pct": 3.6336232035060334
  },
  {
   "window_m": 25.0,
   "max_gradient_pct": 29.063295236082922,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 78.0,
   "end_distance_m": 103.0,
   "start_elevation_m": 314.58608121331577,
   "end_elevation_m": 321.8519050223365,
   "min_gradient_pct": 4.214386116906098
  },
  {
   "window_m": 50.0,
   "max_gradient_pct": 27.819126865382486,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 56.0,
   "end_distance_m": 106.0,
   "start_elevation_m": 308.81708260246734,
   "end_elevation_m": 322.7266460351586,
   "min_gradient_pct": 4.497414934827248
  },
  {
   "window_m": 100.0,
   "max_gradient_pct": 26.144663061837665,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 29.0,
   "end_distance_m": 129.0,
   "start_elevation_m": 302.0822710356679,
   "end_elevation_m": 328.22693409750553,
   "min_gradient_pct": 7.457687433408751
  }
 ],
 "shape": {
  "ascent_concentration": 0.38,
  "concentration_window_frac": 0.25,
  "longest_pitch_10pct_m": 318.0,
  "shape_class": "sustained"
 },
 "length_m": 396.8379931585426,
 "start_elevation_m": 298.48805938866906,
 "end_elevation_m": 366.84005937481834,
 "endpoint_gain_m": 68.35199998614928,
 "overall_gradient_pct": 17.224157254227837,
 "accumulated_ascent_m": 68.41364369946308,
 "window_maxima": {
  "max_5m": {
   "gradient_pct": 31.082612763348152,
   "start_distance_m": 83.0,
   "end_distance_m": 88.0,
   "midpoint_distance_m": 85.5,
   "start_elevation_m": 316.0339634814675,
   "end_elevation_m": 317.5880941196349,
   "start_xy": [
    595088.7002331463,
    4478770.614222145
   ],
   "end_xy": [
    595092.2513118583,
    4478767.094377309
   ]
  },
  "max_10m": {
   "gradient_pct": 30.020129063191234,
   "start_distance_m": 78.0,
   "end_distance_m": 88.0,
   "midpoint_distance_m": 83.0,
   "start_elevation_m": 314.58608121331577,
   "end_elevation_m": 317.5880941196349,
   "start_xy": [
    595085.1456407881,
    4478774.130594305
   ],
   "end_xy": [
    595092.2513118583,
    4478767.094377309
   ]
  },
  "max_20m": {
   "gradient_pct": 29.089707704345074,
   "start_distance_m": 83.0,
   "end_distance_m": 103.0,
   "midpoint_distance_m": 93.0,
   "start_elevation_m": 316.0339634814675,
   "end_elevation_m": 321.8519050223365,
   "start_xy": [
    595088.7002331463,
    4478770.614222145
   ],
   "end_xy": [
    595102.674635739,
    4478756.307611377
   ]
  },
  "max_25m": {
   "gradient_pct": 29.063295236082922,
   "start_distance_m": 78.0,
   "end_distance_m": 103.0,
   "midpoint_distance_m": 90.5,
   "start_elevation_m": 314.58608121331577,
   "end_elevation_m": 321.8519050223365,
   "start_xy": [
    595085.1456407881,
    4478774.130594305
   ],
   "end_xy": [
    595102.674635739,
    4478756.307611377
   ]
  },
  "max_50m": {
   "gradient_pct": 27.819126865382486,
   "start_distance_m": 56.0,
   "end_distance_m": 106.0,
   "midpoint_distance_m": 81.0,
   "start_elevation_m": 308.81708260246734,
   "end_elevation_m": 322.7266460351586,
   "start_xy": [
    595069.5054344119,
    4478789.602631808
   ],
   "end_xy": [
    595104.7593005152,
    4478754.15025819
   ]
  },
  "max_100m": {
   "gradient_pct": 26.144663061837665,
   "start_distance_m": 29.0,
   "end_distance_m": 129.0,
   "midpoint_distance_m": 79.0,
   "start_elevation_m": 302.0822710356679,
   "end_elevation_m": 328.22693409750553,
   "start_xy": [
    595050.3106356777,
    4478808.591041472
   ],
   "end_xy": [
    595120.7417304656,
    4478737.610550428
   ]
  }
 },
 "window_minima": {
  "min_5m": {
   "gradient_pct": -1.1123769143171103,
   "start_distance_m": 340.0,
   "end_distance_m": 345.0,
   "midpoint_distance_m": 342.5,
   "start_elevation_m": 364.12603229447166,
   "end_elevation_m": 364.0704134487558,
   "start_xy": [
    595268.0616386906,
    4478586.640188488
   ],
   "end_xy": [
    595271.5121932375,
    4478583.021670378
   ]
  },
  "min_10m": {
   "gradient_pct": 0.7341765448160231,
   "start_distance_m": 336.0,
   "end_distance_m": 346.0,
   "midpoint_distance_m": 341.0,
   "start_elevation_m": 364.0424725051587,
   "end_elevation_m": 364.1158901596403,
   "start_xy": [
    595265.301195053,
    4478589.535002977
   ],
   "end_xy": [
    595272.2109933497,
    4478583.139574384
   ]
  },
  "min_20m": {
   "gradient_pct": 3.6336232035060334,
   "start_distance_m": 332.0,
   "end_distance_m": 352.0,
   "midpoint_distance_m": 342.0,
   "start_elevation_m": 363.82590796944345,
   "end_elevation_m": 364.55263261014466,
   "start_xy": [
    595262.5407514154,
    4478592.429817465
   ],
   "end_xy": [
    595276.4404293785,
    4478587.395378759
   ]
  },
  "min_25m": {
   "gradient_pct": 4.214386116906098,
   "start_distance_m": 332.0,
   "end_distance_m": 357.0,
   "midpoint_distance_m": 344.5,
   "start_elevation_m": 363.82590796944345,
   "end_elevation_m": 364.87950449867,
   "start_xy": [
    595262.5407514154,
    4478592.429817465
   ],
   "end_xy": [
    595279.9649594027,
    4478590.9418824045
   ]
  },
  "min_50m": {
   "gradient_pct": 4.497414934827248,
   "start_distance_m": 336.0,
   "end_distance_m": 386.0,
   "midpoint_distance_m": 361.0,
   "start_elevation_m": 364.0424725051587,
   "end_elevation_m": 366.2911799725723,
   "start_xy": [
    595265.301195053,
    4478589.535002977
   ],
   "end_xy": [
    595300.4072335424,
    4478611.51160355
   ]
  },
  "min_100m": {
   "gradient_pct": 7.457687433408751,
   "start_distance_m": 296.0,
   "end_distance_m": 396.0,
   "midpoint_distance_m": 346.0,
   "start_elevation_m": 359.34371851501623,
   "end_elevation_m": 366.801405948425,
   "start_xy": [
    595237.696758677,
    4478618.483147863
   ],
   "end_xy": [
    595307.4562935906,
    4478618.604610842
   ]
  }
 },
 "diagnostic_window_maxima": {
  "max_2m": {
   "gradient_pct": 32.66613726252103,
   "start_distance_m": 83.0,
   "end_distance_m": 85.0,
   "midpoint_distance_m": 84.0,
   "start_elevation_m": 316.0339634814675,
   "end_elevation_m": 316.6872862267179,
   "start_xy": [
    595088.7002331463,
    4478770.614222145
   ],
   "end_xy": [
    595090.1220700896,
    4478769.207673281
   ]
  },
  "max_3m": {
   "gradient_pct": 32.342474390439214,
   "start_distance_m": 83.0,
   "end_distance_m": 86.0,
   "midpoint_distance_m": 84.5,
   "start_elevation_m": 316.0339634814675,
   "end_elevation_m": 317.00423771318066,
   "start_xy": [
    595088.7002331463,
    4478770.614222145
   ],
   "end_xy": [
    595090.8329885612,
    4478768.504398849
   ]
  }
 },
 "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_x59y448_PA_WesternPA_2019_D20.tif"
  ],
  "calculated_at": "2026-09-07T13:23:33+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": [
   "x59y448"
  ],
  "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": "Pittsburgh",
  "county": "Pennsylvania"
 }
}