{
 "ocl_version": "0.1.0",
 "name": "Bethel Street",
 "slug": "bethel-street",
 "confidence": "A",
 "reported_claims": [],
 "ladder": [
  {
   "window_m": 2.0,
   "max_gradient_pct": 22.35706587697166,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 600.0,
   "end_distance_m": 602.0,
   "start_elevation_m": 464.99161641289226,
   "end_elevation_m": 465.4387577304317,
   "min_gradient_pct": -5.407769783712979
  },
  {
   "window_m": 3.0,
   "max_gradient_pct": 22.235660610410452,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 599.0,
   "end_distance_m": 602.0,
   "start_elevation_m": 464.7716879121194,
   "end_elevation_m": 465.4387577304317,
   "min_gradient_pct": -5.160905546993415
  },
  {
   "window_m": 5.0,
   "max_gradient_pct": 21.785918672535445,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 592.0,
   "end_distance_m": 597.0,
   "start_elevation_m": 463.273115378463,
   "end_elevation_m": 464.36241131208976,
   "min_gradient_pct": -4.91710794917708
  },
  {
   "window_m": 10.0,
   "max_gradient_pct": 21.656423519686996,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 592.0,
   "end_distance_m": 602.0,
   "start_elevation_m": 463.273115378463,
   "end_elevation_m": 465.4387577304317,
   "min_gradient_pct": -4.861281166276399
  },
  {
   "window_m": 20.0,
   "max_gradient_pct": 21.40366331271025,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 585.0,
   "end_distance_m": 605.0,
   "start_elevation_m": 461.79555412795594,
   "end_elevation_m": 466.076286790498,
   "min_gradient_pct": -4.309962901400297
  },
  {
   "window_m": 25.0,
   "max_gradient_pct": 21.218509972442916,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 583.0,
   "end_distance_m": 608.0,
   "start_elevation_m": 461.3806855500054,
   "end_elevation_m": 466.68531304311614,
   "min_gradient_pct": -4.110374473059892
  },
  {
   "window_m": 50.0,
   "max_gradient_pct": 20.29259377244648,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 572.0,
   "end_distance_m": 622.0,
   "start_elevation_m": 459.25507629020376,
   "end_elevation_m": 469.401373176427,
   "min_gradient_pct": -3.4572481537467183
  },
  {
   "window_m": 100.0,
   "max_gradient_pct": 17.69549319145318,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 535.0,
   "end_distance_m": 635.0,
   "start_elevation_m": 453.902932376879,
   "end_elevation_m": 471.5984255683322,
   "min_gradient_pct": -1.2722305988803555
  }
 ],
 "shape": {
  "ascent_concentration": 0.424,
  "concentration_window_frac": 0.25,
  "longest_pitch_10pct_m": 97.0,
  "shape_class": "sustained"
 },
 "length_m": 1275.2022175302957,
 "start_elevation_m": 423.8986354394482,
 "end_elevation_m": 517.4145507592707,
 "endpoint_gain_m": 93.51591531982251,
 "overall_gradient_pct": 7.333418498984127,
 "accumulated_ascent_m": 95.4784063088756,
 "window_maxima": {
  "max_5m": {
   "gradient_pct": 21.785918672535445,
   "start_distance_m": 592.0,
   "end_distance_m": 597.0,
   "midpoint_distance_m": 594.5,
   "start_elevation_m": 463.273115378463,
   "end_elevation_m": 464.36241131208976,
   "start_xy": [
    675867.2912067561,
    4466615.151859123
   ],
   "end_xy": [
    675866.4950259647,
    4466610.215656519
   ]
  },
  "max_10m": {
   "gradient_pct": 21.656423519686996,
   "start_distance_m": 592.0,
   "end_distance_m": 602.0,
   "midpoint_distance_m": 597.0,
   "start_elevation_m": 463.273115378463,
   "end_elevation_m": 465.4387577304317,
   "start_xy": [
    675867.2912067561,
    4466615.151859123
   ],
   "end_xy": [
    675865.6988451732,
    4466605.279453916
   ]
  },
  "max_20m": {
   "gradient_pct": 21.40366331271025,
   "start_distance_m": 585.0,
   "end_distance_m": 605.0,
   "midpoint_distance_m": 595.0,
   "start_elevation_m": 461.79555412795594,
   "end_elevation_m": 466.076286790498,
   "start_xy": [
    675868.4058598642,
    4466622.062542769
   ],
   "end_xy": [
    675865.2211366983,
    4466602.317732353
   ]
  },
  "max_25m": {
   "gradient_pct": 21.218509972442916,
   "start_distance_m": 583.0,
   "end_distance_m": 608.0,
   "midpoint_distance_m": 595.5,
   "start_elevation_m": 461.3806855500054,
   "end_elevation_m": 466.68531304311614,
   "start_xy": [
    675868.5596092801,
    4466624.054386397
   ],
   "end_xy": [
    675864.7434282234,
    4466599.356010791
   ]
  },
  "max_50m": {
   "gradient_pct": 20.29259377244648,
   "start_distance_m": 572.0,
   "end_distance_m": 622.0,
   "midpoint_distance_m": 597.0,
   "start_elevation_m": 459.25507629020376,
   "end_elevation_m": 469.401373176427,
   "start_xy": [
    675869.1106675849,
    4466635.040574759
   ],
   "end_xy": [
    675862.5141220073,
    4466585.534643499
   ]
  },
  "max_100m": {
   "gradient_pct": 17.69549319145318,
   "start_distance_m": 535.0,
   "end_distance_m": 635.0,
   "midpoint_distance_m": 585.0,
   "start_elevation_m": 453.902932376879,
   "end_elevation_m": 471.5984255683322,
   "start_xy": [
    675855.3212728527,
    4466657.871447746
   ],
   "end_xy": [
    675860.4440519494,
    4466572.70051673
   ]
  }
 },
 "window_minima": {
  "min_5m": {
   "gradient_pct": -4.91710794917708,
   "start_distance_m": 30.0,
   "end_distance_m": 35.0,
   "midpoint_distance_m": 32.5,
   "start_elevation_m": 423.016338165724,
   "end_elevation_m": 422.77048276826514,
   "start_xy": [
    675954.4830358506,
    4466851.595006669
   ],
   "end_xy": [
    675950.5288751591,
    4466848.534841114
   ]
  },
  "min_10m": {
   "gradient_pct": -4.861281166276399,
   "start_distance_m": 25.0,
   "end_distance_m": 35.0,
   "midpoint_distance_m": 30.0,
   "start_elevation_m": 423.2566108848928,
   "end_elevation_m": 422.77048276826514,
   "start_xy": [
    675958.4371965422,
    4466854.655172224
   ],
   "end_xy": [
    675950.5288751591,
    4466848.534841114
   ]
  },
  "min_20m": {
   "gradient_pct": -4.309962901400297,
   "start_distance_m": 23.0,
   "end_distance_m": 43.0,
   "midpoint_distance_m": 33.0,
   "start_elevation_m": 423.3501712784499,
   "end_elevation_m": 422.48817869816986,
   "start_xy": [
    675960.0188608188,
    4466855.879238446
   ],
   "end_xy": [
    675943.8527812721,
    4466844.193300307
   ]
  },
  "min_25m": {
   "gradient_pct": -4.110374473059892,
   "start_distance_m": 22.0,
   "end_distance_m": 47.0,
   "midpoint_distance_m": 34.5,
   "start_elevation_m": 423.38576024359384,
   "end_elevation_m": 422.35816662532886,
   "start_xy": [
    675960.8096929571,
    4466856.491271557
   ],
   "end_xy": [
    675940.2786489575,
    4466842.397310831
   ]
  },
  "min_50m": {
   "gradient_pct": -3.4572481537467183,
   "start_distance_m": 6.0,
   "end_distance_m": 56.0,
   "midpoint_distance_m": 31.0,
   "start_elevation_m": 423.81625590683285,
   "end_elevation_m": 422.0876318299595,
   "start_xy": [
    675973.4630071701,
    4466866.283801334
   ],
   "end_xy": [
    675932.2368512497,
    4466838.35633451
   ]
  },
  "min_100m": {
   "gradient_pct": -1.2722305988803555,
   "start_distance_m": 0.0,
   "end_distance_m": 100.0,
   "midpoint_distance_m": 50.0,
   "start_elevation_m": 423.8986354394482,
   "end_elevation_m": 422.62640484056783,
   "start_xy": [
    675978.208,
    4466869.956
   ],
   "end_xy": [
    675892.9269926981,
    4466818.589392446
   ]
  }
 },
 "diagnostic_window_maxima": {
  "max_2m": {
   "gradient_pct": 22.35706587697166,
   "start_distance_m": 600.0,
   "end_distance_m": 602.0,
   "midpoint_distance_m": 601.0,
   "start_elevation_m": 464.99161641289226,
   "end_elevation_m": 465.4387577304317,
   "start_xy": [
    675866.0173174897,
    4466607.253934957
   ],
   "end_xy": [
    675865.6988451732,
    4466605.279453916
   ]
  },
  "max_3m": {
   "gradient_pct": 22.235660610410452,
   "start_distance_m": 599.0,
   "end_distance_m": 602.0,
   "midpoint_distance_m": 600.5,
   "start_elevation_m": 464.7716879121194,
   "end_elevation_m": 465.4387577304317,
   "start_xy": [
    675866.1765536481,
    4466608.241175477
   ],
   "end_xy": [
    675865.6988451732,
    4466605.279453916
   ]
  }
 },
 "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_x67y447_PA_WesternPA_2019_D20.tif"
  ],
  "calculated_at": "2026-09-07T11:29:58+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": [
   "x67y447"
  ],
  "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": "Westmont",
  "county": "Pennsylvania"
 }
}