{
 "ocl_version": "0.1.0",
 "name": "Beech Street",
 "slug": "beech-street-2",
 "confidence": "B",
 "reported_claims": [],
 "ladder": [
  {
   "window_m": 2.0,
   "max_gradient_pct": 19.754653924215404,
   "diagnostic": true,
   "flags": [
    "texture_excluded"
   ],
   "start_distance_m": 567.0,
   "end_distance_m": 569.0,
   "start_elevation_m": 350.6064911267595,
   "end_elevation_m": 351.00158420524383,
   "min_gradient_pct": -7.706642518894569,
   "suppressed_max_gradient_pct": 22.07209765720677,
   "suppressed_location_m": [
    540.0,
    542.0
   ]
  },
  {
   "window_m": 3.0,
   "max_gradient_pct": 19.705942170423896,
   "diagnostic": true,
   "flags": [
    "texture_excluded"
   ],
   "start_distance_m": 566.0,
   "end_distance_m": 569.0,
   "start_elevation_m": 350.4104059401311,
   "end_elevation_m": 351.00158420524383,
   "min_gradient_pct": -7.608088065069296,
   "suppressed_max_gradient_pct": 21.924190025625496,
   "suppressed_location_m": [
    540.0,
    543.0
   ]
  },
  {
   "window_m": 5.0,
   "max_gradient_pct": 19.437192384410764,
   "diagnostic": false,
   "flags": [
    "texture_excluded"
   ],
   "start_distance_m": 565.0,
   "end_distance_m": 570.0,
   "start_elevation_m": 350.2192567849928,
   "end_elevation_m": 351.19111640421335,
   "min_gradient_pct": -7.549395168348383,
   "suppressed_max_gradient_pct": 21.668808664117023,
   "suppressed_location_m": [
    540.0,
    545.0
   ]
  },
  {
   "window_m": 10.0,
   "max_gradient_pct": 18.562338340240103,
   "diagnostic": false,
   "flags": [
    "texture_excluded"
   ],
   "start_distance_m": 562.0,
   "end_distance_m": 572.0,
   "start_elevation_m": 349.6444592785364,
   "end_elevation_m": 351.5006931125604,
   "min_gradient_pct": -7.222838267423413,
   "suppressed_max_gradient_pct": 21.545172076016,
   "suppressed_location_m": [
    540.0,
    550.0
   ]
  },
  {
   "window_m": 20.0,
   "max_gradient_pct": 13.283163801843614,
   "diagnostic": false,
   "flags": [
    "texture_excluded"
   ],
   "start_distance_m": 562.0,
   "end_distance_m": 582.0,
   "start_elevation_m": 349.6444592785364,
   "end_elevation_m": 352.3010920389051,
   "min_gradient_pct": -6.0921818562948715,
   "suppressed_max_gradient_pct": 21.22601747591716,
   "suppressed_location_m": [
    534.0,
    554.0
   ]
  },
  {
   "window_m": 25.0,
   "max_gradient_pct": 11.172239394530607,
   "diagnostic": false,
   "flags": [
    "texture_excluded"
   ],
   "start_distance_m": 562.0,
   "end_distance_m": 587.0,
   "start_elevation_m": 349.6444592785364,
   "end_elevation_m": 352.437519127169,
   "min_gradient_pct": -5.43095945088794,
   "suppressed_max_gradient_pct": 21.116210789373554,
   "suppressed_location_m": [
    534.0,
    559.0
   ]
  },
  {
   "window_m": 50.0,
   "max_gradient_pct": 9.247811478596532,
   "diagnostic": false,
   "flags": [
    "texture_excluded"
   ],
   "start_distance_m": 188.0,
   "end_distance_m": 238.0,
   "start_elevation_m": 333.656953411009,
   "end_elevation_m": 338.28085915030726,
   "min_gradient_pct": -3.8718412778065385,
   "suppressed_max_gradient_pct": 17.728879103610666,
   "suppressed_location_m": [
    531.0,
    581.0
   ]
  },
  {
   "window_m": 100.0,
   "max_gradient_pct": 8.979853372856041,
   "diagnostic": false,
   "flags": [
    "texture_excluded"
   ],
   "start_distance_m": 142.0,
   "end_distance_m": 242.0,
   "start_elevation_m": 329.64749630144934,
   "end_elevation_m": 338.6273496743054,
   "min_gradient_pct": -3.0099220025793443,
   "suppressed_max_gradient_pct": 10.038690414939822,
   "suppressed_location_m": [
    530.0,
    630.0
   ]
  }
 ],
 "shape": {
  "ascent_concentration": 0.383,
  "concentration_window_frac": 0.25,
  "longest_pitch_10pct_m": 52.0,
  "shape_class": "sustained"
 },
 "length_m": 682.1684243994433,
 "start_elevation_m": 320.52892346786814,
 "end_elevation_m": 353.6629654199181,
 "endpoint_gain_m": 33.134041952049984,
 "overall_gradient_pct": 4.857164413791214,
 "accumulated_ascent_m": 37.87312654803384,
 "window_maxima": {
  "max_5m": {
   "gradient_pct": 19.437192384410764,
   "start_distance_m": 565.0,
   "end_distance_m": 570.0,
   "midpoint_distance_m": 567.5,
   "start_elevation_m": 350.2192567849928,
   "end_elevation_m": 351.19111640421335,
   "start_xy": [
    567654.4659350234,
    4460729.181612418
   ],
   "end_xy": [
    567654.5622460283,
    4460724.211728985
   ]
  },
  "max_10m": {
   "gradient_pct": 18.562338340240103,
   "start_distance_m": 562.0,
   "end_distance_m": 572.0,
   "midpoint_distance_m": 567.0,
   "start_elevation_m": 349.6444592785364,
   "end_elevation_m": 351.5006931125604,
   "start_xy": [
    567655.1816117136,
    4460732.058142193
   ],
   "end_xy": [
    567654.8542354853,
    4460722.233158254
   ]
  },
  "max_20m": {
   "gradient_pct": 13.283163801843614,
   "start_distance_m": 562.0,
   "end_distance_m": 582.0,
   "midpoint_distance_m": 572.0,
   "start_elevation_m": 349.6444592785364,
   "end_elevation_m": 352.3010920389051,
   "start_xy": [
    567655.1816117136,
    4460732.058142193
   ],
   "end_xy": [
    567660.3877186191,
    4460714.183464297
   ]
  },
  "max_25m": {
   "gradient_pct": 11.172239394530607,
   "start_distance_m": 562.0,
   "end_distance_m": 587.0,
   "midpoint_distance_m": 574.5,
   "start_elevation_m": 349.6444592785364,
   "end_elevation_m": 352.437519127169,
   "start_xy": [
    567655.1816117136,
    4460732.058142193
   ],
   "end_xy": [
    567664.329003025,
    4460711.106733676
   ]
  },
  "max_50m": {
   "gradient_pct": 9.247811478596532,
   "start_distance_m": 188.0,
   "end_distance_m": 238.0,
   "midpoint_distance_m": 213.0,
   "start_elevation_m": 333.656953411009,
   "end_elevation_m": 338.28085915030726,
   "start_xy": [
    567795.1123336297,
    4460444.162629112
   ],
   "end_xy": [
    567786.2100833586,
    4460493.322483937
   ]
  },
  "max_100m": {
   "gradient_pct": 8.979853372856041,
   "start_distance_m": 142.0,
   "end_distance_m": 242.0,
   "midpoint_distance_m": 192.0,
   "start_elevation_m": 329.64749630144934,
   "end_elevation_m": 338.6273496743054,
   "start_xy": [
    567824.8498438011,
    4460410.129072672
   ],
   "end_xy": [
    567785.6041090835,
    4460497.276316555
   ]
  }
 },
 "window_minima": {
  "min_5m": {
   "gradient_pct": -7.549395168348383,
   "start_distance_m": 521.0,
   "end_distance_m": 526.0,
   "midpoint_distance_m": 523.5,
   "start_elevation_m": 344.0795678518843,
   "end_elevation_m": 343.7020980934669,
   "start_xy": [
    567685.3783873881,
    4460742.534449394
   ],
   "end_xy": [
    567682.6118122553,
    4460746.699254421
   ]
  },
  "min_10m": {
   "gradient_pct": -7.222838267423413,
   "start_distance_m": 519.0,
   "end_distance_m": 529.0,
   "midpoint_distance_m": 524.0,
   "start_elevation_m": 344.2086039686927,
   "end_elevation_m": 343.4863201419504,
   "start_xy": [
    567686.4559309087,
    4460740.84954878
   ],
   "end_xy": [
    567680.9469945555,
    4460749.194927071
   ]
  },
  "min_20m": {
   "gradient_pct": -6.0921818562948715,
   "start_distance_m": 510.0,
   "end_distance_m": 530.0,
   "midpoint_distance_m": 520.0,
   "start_elevation_m": 344.63967164227006,
   "end_elevation_m": 343.4212352710111,
   "start_xy": [
    567692.7779503223,
    4460734.608761201
   ],
   "end_xy": [
    567680.3686107944,
    4460749.993053242
   ]
  },
  "min_25m": {
   "gradient_pct": -5.43095945088794,
   "start_distance_m": 505.0,
   "end_distance_m": 530.0,
   "midpoint_distance_m": 517.5,
   "start_elevation_m": 344.77897513373307,
   "end_elevation_m": 343.4212352710111,
   "start_xy": [
    567696.750810514,
    4460731.572912211
   ],
   "end_xy": [
    567680.3686107944,
    4460749.993053242
   ]
  },
  "min_50m": {
   "gradient_pct": -3.8718412778065385,
   "start_distance_m": 406.0,
   "end_distance_m": 456.0,
   "midpoint_distance_m": 431.0,
   "start_elevation_m": 347.36527787677346,
   "end_elevation_m": 345.4293572378702,
   "start_xy": [
    567757.9805581972,
    4460658.799640158
   ],
   "end_xy": [
    567735.685459643,
    4460701.822405538
   ]
  },
  "min_100m": {
   "gradient_pct": -3.0099220025793443,
   "start_distance_m": 430.0,
   "end_distance_m": 530.0,
   "midpoint_distance_m": 480.0,
   "start_elevation_m": 346.43115727359043,
   "end_elevation_m": 343.4212352710111,
   "start_xy": [
    567752.3516945079,
    4460682.12680585
   ],
   "end_xy": [
    567680.3686107944,
    4460749.993053242
   ]
  }
 },
 "diagnostic_window_maxima": {
  "max_2m": {
   "gradient_pct": 19.754653924215404,
   "start_distance_m": 567.0,
   "end_distance_m": 569.0,
   "midpoint_distance_m": 568.0,
   "start_elevation_m": 350.6064911267595,
   "end_elevation_m": 351.00158420524383,
   "start_xy": [
    567654.3019134025,
    4460727.18834954
   ],
   "end_xy": [
    567654.416256613,
    4460725.201015135
   ]
  },
  "max_3m": {
   "gradient_pct": 19.705942170423896,
   "start_distance_m": 566.0,
   "end_distance_m": 569.0,
   "midpoint_distance_m": 567.5,
   "start_elevation_m": 350.4104059401311,
   "end_elevation_m": 351.00158420524383,
   "start_xy": [
    567654.3839361045,
    4460728.18498
   ],
   "end_xy": [
    567654.416256613,
    4460725.201015135
   ]
  }
 },
 "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": {
  "texture_suppression": {
   "masked_fraction": 0.044,
   "windows_resited": [
    2.0,
    3.0,
    5.0,
    10.0,
    20.0,
    25.0,
    50.0,
    100.0
   ],
   "windows_unresolved": []
  },
  "texture_windows": {
   "rounds": 1,
   "windows_masked": [
    {
     "window_m": 25.0,
     "start_m": 534.0,
     "end_m": 559.0,
     "raw_pct": 21.12,
     "reason": "hump"
    },
    {
     "window_m": 20.0,
     "start_m": 534.0,
     "end_m": 554.0,
     "raw_pct": 21.23,
     "reason": "hump"
    },
    {
     "window_m": 10.0,
     "start_m": 540.0,
     "end_m": 550.0,
     "raw_pct": 21.55,
     "reason": "hump"
    }
   ],
   "advisory": [],
   "unresolved": []
  },
  "excluded_ranges_m": [
   [
    532.0,
    561.0
   ]
  ],
  "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_x56y447_PA_WesternPA_2019_D20.tif"
  ],
  "calculated_at": "2026-09-12T00:05:16+00:00",
  "road_source": "OpenStreetMap (local PBF extract)",
  "road_attribution": "\u00a9 OpenStreetMap contributors, ODbL",
  "osm_pbf_path": "output/texture-us-pa/batch-usa-rchunk01.pbf",
  "osm_snapshot": "",
  "run_id": "texture-us-pa-260911",
  "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": [
   "x56y447"
  ],
  "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": "Cecil",
  "county": "Pennsylvania"
 }
}