{
 "ocl_version": "0.1.0",
 "name": "Radnor Avenue",
 "slug": "radnor-avenue",
 "confidence": "A",
 "reported_claims": [],
 "ladder": [
  {
   "window_m": 2.0,
   "max_gradient_pct": 25.59153040920137,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 195.0,
   "end_distance_m": 197.0,
   "start_elevation_m": 327.2170174020851,
   "end_elevation_m": 327.72884801026913,
   "min_gradient_pct": -25.482692646681926
  },
  {
   "window_m": 3.0,
   "max_gradient_pct": 24.990349355749686,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 194.0,
   "end_distance_m": 197.0,
   "start_elevation_m": 326.97913752959664,
   "end_elevation_m": 327.72884801026913,
   "min_gradient_pct": -25.64881817230571
  },
  {
   "window_m": 5.0,
   "max_gradient_pct": 24.82020967333483,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 191.0,
   "end_distance_m": 196.0,
   "start_elevation_m": 326.2383362942188,
   "end_elevation_m": 327.47934677788555,
   "min_gradient_pct": -24.742145216372364
  },
  {
   "window_m": 10.0,
   "max_gradient_pct": 24.408193500821085,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 189.0,
   "end_distance_m": 199.0,
   "start_elevation_m": 325.76049588182246,
   "end_elevation_m": 328.2013152319046,
   "min_gradient_pct": -23.697780721592494
  },
  {
   "window_m": 20.0,
   "max_gradient_pct": 23.811286623645742,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 190.0,
   "end_distance_m": 210.0,
   "start_elevation_m": 326.0012943063534,
   "end_elevation_m": 330.7635516310825,
   "min_gradient_pct": -21.146455016154277
  },
  {
   "window_m": 25.0,
   "max_gradient_pct": 23.765276310446325,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 189.0,
   "end_distance_m": 214.0,
   "start_elevation_m": 325.76049588182246,
   "end_elevation_m": 331.70181495943405,
   "min_gradient_pct": -19.660843657725536
  },
  {
   "window_m": 50.0,
   "max_gradient_pct": 23.174229793685868,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 181.0,
   "end_distance_m": 231.0,
   "start_elevation_m": 323.95614883274277,
   "end_elevation_m": 335.5432637295857,
   "min_gradient_pct": -12.685392791837558
  },
  {
   "window_m": 100.0,
   "max_gradient_pct": 20.601667414957827,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 123.0,
   "end_distance_m": 223.0,
   "start_elevation_m": 313.1749644369201,
   "end_elevation_m": 333.77663185187794,
   "min_gradient_pct": -2.193621739334162
  }
 ],
 "shape": {
  "ascent_concentration": 0.448,
  "concentration_window_frac": 0.25,
  "longest_pitch_10pct_m": 171.0,
  "shape_class": "sustained"
 },
 "length_m": 387.6063301242028,
 "start_elevation_m": 299.96002649903636,
 "end_elevation_m": 337.53004369138887,
 "endpoint_gain_m": 37.57001719235251,
 "overall_gradient_pct": 9.692828592431331,
 "accumulated_ascent_m": 44.62698564523828,
 "window_maxima": {
  "max_5m": {
   "gradient_pct": 24.82020967333483,
   "start_distance_m": 191.0,
   "end_distance_m": 196.0,
   "midpoint_distance_m": 193.5,
   "start_elevation_m": 326.2383362942188,
   "end_elevation_m": 327.47934677788555,
   "start_xy": [
    597798.5934234895,
    4474117.134356927
   ],
   "end_xy": [
    597793.6648363197,
    4474116.29231862
   ]
  },
  "max_10m": {
   "gradient_pct": 24.408193500821085,
   "start_distance_m": 189.0,
   "end_distance_m": 199.0,
   "midpoint_distance_m": 194.0,
   "start_elevation_m": 325.76049588182246,
   "end_elevation_m": 328.2013152319046,
   "start_xy": [
    597800.5648583573,
    4474117.47117225
   ],
   "end_xy": [
    597790.7330881987,
    4474116.091361922
   ]
  },
  "max_20m": {
   "gradient_pct": 23.811286623645742,
   "start_distance_m": 190.0,
   "end_distance_m": 210.0,
   "midpoint_distance_m": 200.0,
   "start_elevation_m": 326.0012943063534,
   "end_elevation_m": 330.7635516310825,
   "start_xy": [
    597799.5791409235,
    4474117.302764588
   ],
   "end_xy": [
    597780.3475224648,
    4474119.716279078
   ]
  },
  "max_25m": {
   "gradient_pct": 23.765276310446325,
   "start_distance_m": 189.0,
   "end_distance_m": 214.0,
   "midpoint_distance_m": 201.5,
   "start_elevation_m": 325.76049588182246,
   "end_elevation_m": 331.70181495943405,
   "start_xy": [
    597800.5648583573,
    4474117.47117225
   ],
   "end_xy": [
    597776.6474864391,
    4474121.173592886
   ]
  },
  "max_50m": {
   "gradient_pct": 23.174229793685868,
   "start_distance_m": 181.0,
   "end_distance_m": 231.0,
   "midpoint_distance_m": 206.0,
   "start_elevation_m": 323.95614883274277,
   "end_elevation_m": 335.5432637295857,
   "start_xy": [
    597808.4544266282,
    4474118.794987117
   ],
   "end_xy": [
    597763.2973432286,
    4474131.698157805
   ]
  },
  "max_100m": {
   "gradient_pct": 20.601667414957827,
   "start_distance_m": 123.0,
   "end_distance_m": 223.0,
   "midpoint_distance_m": 173.0,
   "start_elevation_m": 313.1749644369201,
   "end_elevation_m": 333.77663185187794,
   "start_xy": [
    597853.5658632107,
    4474142.346815808
   ],
   "end_xy": [
    597769.5920182932,
    4474126.761111946
   ]
  }
 },
 "window_minima": {
  "min_5m": {
   "gradient_pct": -24.742145216372364,
   "start_distance_m": 311.0,
   "end_distance_m": 316.0,
   "midpoint_distance_m": 313.5,
   "start_elevation_m": 336.0635165847429,
   "end_elevation_m": 334.8264093239243,
   "start_xy": [
    597696.4013265555,
    4474174.7632279685
   ],
   "end_xy": [
    597691.8802161188,
    4474176.898540691
   ]
  },
  "min_10m": {
   "gradient_pct": -23.697780721592494,
   "start_distance_m": 307.0,
   "end_distance_m": 317.0,
   "midpoint_distance_m": 312.0,
   "start_elevation_m": 336.97479048223977,
   "end_elevation_m": 334.6050124100805,
   "start_xy": [
    597700.018214905,
    4474173.054977791
   ],
   "end_xy": [
    597690.9759940314,
    4474177.325603235
   ]
  },
  "min_20m": {
   "gradient_pct": -21.146455016154277,
   "start_distance_m": 300.0,
   "end_distance_m": 320.0,
   "midpoint_distance_m": 310.0,
   "start_elevation_m": 338.27480646174905,
   "end_elevation_m": 334.0455154585182,
   "start_xy": [
    597706.3477695165,
    4474170.065539981
   ],
   "end_xy": [
    597688.2633277694,
    4474178.606790868
   ]
  },
  "min_25m": {
   "gradient_pct": -19.660843657725536,
   "start_distance_m": 296.0,
   "end_distance_m": 321.0,
   "midpoint_distance_m": 308.5,
   "start_elevation_m": 338.83349462109936,
   "end_elevation_m": 333.918283706668,
   "start_xy": [
    597709.9646578659,
    4474168.357289804
   ],
   "end_xy": [
    597687.359105682,
    4474179.033853412
   ]
  },
  "min_50m": {
   "gradient_pct": -12.685392791837558,
   "start_distance_m": 277.0,
   "end_distance_m": 327.0,
   "midpoint_distance_m": 302.0,
   "start_elevation_m": 339.90860504490047,
   "end_elevation_m": 333.5659086489817,
   "start_xy": [
    597726.8541184327,
    4474159.767560479
   ],
   "end_xy": [
    597682.0214056586,
    4474181.762690322
   ]
  },
  "min_100m": {
   "gradient_pct": -2.193621739334162,
   "start_distance_m": 283.0,
   "end_distance_m": 383.0,
   "midpoint_distance_m": 333.0,
   "start_elevation_m": 339.79566358021174,
   "end_elevation_m": 337.6020418408776,
   "start_xy": [
    597721.7195450016,
    4474162.805476729
   ],
   "end_xy": [
    597633.6452259612,
    4474209.971647019
   ]
  }
 },
 "diagnostic_window_maxima": {
  "max_2m": {
   "gradient_pct": 25.59153040920137,
   "start_distance_m": 195.0,
   "end_distance_m": 197.0,
   "midpoint_distance_m": 196.0,
   "start_elevation_m": 327.2170174020851,
   "end_elevation_m": 327.72884801026913,
   "start_xy": [
    597794.6505537537,
    4474116.460726281
   ],
   "end_xy": [
    597792.6791188859,
    4474116.123910958
   ]
  },
  "max_3m": {
   "gradient_pct": 24.990349355749686,
   "start_distance_m": 194.0,
   "end_distance_m": 197.0,
   "midpoint_distance_m": 195.5,
   "start_elevation_m": 326.97913752959664,
   "end_elevation_m": 327.72884801026913,
   "start_xy": [
    597795.6362711877,
    4474116.629133943
   ],
   "end_xy": [
    597792.6791188859,
    4474116.123910958
   ]
  }
 },
 "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": "2026-09-07T12:06:20+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": "Forest Hills",
  "county": "Pennsylvania"
 }
}