{
 "ocl_version": "0.1.0",
 "name": "Garfield Avenue",
 "slug": "garfield-avenue",
 "confidence": "A",
 "reported_claims": [],
 "ladder": [
  {
   "window_m": 2.0,
   "max_gradient_pct": 26.65832379926485,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 122.0,
   "end_distance_m": 124.0,
   "start_elevation_m": 343.24080524820886,
   "end_elevation_m": 343.77397172419415,
   "min_gradient_pct": 0.0007039313629775279
  },
  {
   "window_m": 3.0,
   "max_gradient_pct": 26.250657009442573,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 122.0,
   "end_distance_m": 125.0,
   "start_elevation_m": 343.24080524820886,
   "end_elevation_m": 344.02832495849214,
   "min_gradient_pct": 0.6430806740013395
  },
  {
   "window_m": 5.0,
   "max_gradient_pct": 25.866877975631724,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 122.0,
   "end_distance_m": 127.0,
   "start_elevation_m": 343.24080524820886,
   "end_elevation_m": 344.53414914699044,
   "min_gradient_pct": 1.4879793284853804
  },
  {
   "window_m": 10.0,
   "max_gradient_pct": 25.670485655128914,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 122.0,
   "end_distance_m": 132.0,
   "start_elevation_m": 343.24080524820886,
   "end_elevation_m": 345.80785381372175,
   "min_gradient_pct": 3.344400861489021
  },
  {
   "window_m": 20.0,
   "max_gradient_pct": 25.017089991036983,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 118.0,
   "end_distance_m": 138.0,
   "start_elevation_m": 342.2627150247456,
   "end_elevation_m": 347.266133022953,
   "min_gradient_pct": 5.0769868273008
  },
  {
   "window_m": 25.0,
   "max_gradient_pct": 24.679511417058848,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 117.0,
   "end_distance_m": 142.0,
   "start_elevation_m": 342.0321085736085,
   "end_elevation_m": 348.20198642787324,
   "min_gradient_pct": 5.451486987398994
  },
  {
   "window_m": 50.0,
   "max_gradient_pct": 22.692580192675678,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 106.0,
   "end_distance_m": 156.0,
   "start_elevation_m": 339.7293720890631,
   "end_elevation_m": 351.0756621854009,
   "min_gradient_pct": 6.285200086561872
  },
  {
   "window_m": 100.0,
   "max_gradient_pct": 18.09473966510444,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 103.0,
   "end_distance_m": 203.0,
   "start_elevation_m": 339.2588380060957,
   "end_elevation_m": 357.3535776712001,
   "min_gradient_pct": 6.984811463406913
  }
 ],
 "shape": {
  "ascent_concentration": 0.381,
  "concentration_window_frac": 0.25,
  "longest_pitch_10pct_m": 109.0,
  "shape_class": "sustained"
 },
 "length_m": 460.0504646384869,
 "start_elevation_m": 328.35224150299,
 "end_elevation_m": 379.35298003112746,
 "endpoint_gain_m": 51.00073852813745,
 "overall_gradient_pct": 11.08590088442024,
 "accumulated_ascent_m": 51.00227694712646,
 "window_maxima": {
  "max_5m": {
   "gradient_pct": 25.866877975631724,
   "start_distance_m": 122.0,
   "end_distance_m": 127.0,
   "midpoint_distance_m": 124.5,
   "start_elevation_m": 343.24080524820886,
   "end_elevation_m": 344.53414914699044,
   "start_xy": [
    593245.4055036438,
    4523018.999506735
   ],
   "end_xy": [
    593246.7848144345,
    4523014.193520703
   ]
  },
  "max_10m": {
   "gradient_pct": 25.670485655128914,
   "start_distance_m": 122.0,
   "end_distance_m": 132.0,
   "midpoint_distance_m": 127.0,
   "start_elevation_m": 343.24080524820886,
   "end_elevation_m": 345.80785381372175,
   "start_xy": [
    593245.4055036438,
    4523018.999506735
   ],
   "end_xy": [
    593248.1641252252,
    4523009.387534671
   ]
  },
  "max_20m": {
   "gradient_pct": 25.017089991036983,
   "start_distance_m": 118.0,
   "end_distance_m": 138.0,
   "midpoint_distance_m": 128.0,
   "start_elevation_m": 342.2627150247456,
   "end_elevation_m": 347.266133022953,
   "start_xy": [
    593244.3020550112,
    4523022.844295561
   ],
   "end_xy": [
    593249.8192981739,
    4523003.620351432
   ]
  },
  "max_25m": {
   "gradient_pct": 24.679511417058848,
   "start_distance_m": 117.0,
   "end_distance_m": 142.0,
   "midpoint_distance_m": 129.5,
   "start_elevation_m": 342.0321085736085,
   "end_elevation_m": 348.20198642787324,
   "start_xy": [
    593244.0261928531,
    4523023.805492768
   ],
   "end_xy": [
    593250.986028273,
    4522999.794294159
   ]
  },
  "max_50m": {
   "gradient_pct": 22.692580192675678,
   "start_distance_m": 106.0,
   "end_distance_m": 156.0,
   "midpoint_distance_m": 131.0,
   "start_elevation_m": 339.7293720890631,
   "end_elevation_m": 351.0756621854009,
   "start_xy": [
    593240.9917091136,
    4523034.378662039
   ],
   "end_xy": [
    593255.0709370361,
    4522986.403494317
   ]
  },
  "max_100m": {
   "gradient_pct": 18.09473966510444,
   "start_distance_m": 103.0,
   "end_distance_m": 203.0,
   "midpoint_distance_m": 153.0,
   "start_elevation_m": 339.2588380060957,
   "end_elevation_m": 357.3535776712001,
   "start_xy": [
    593240.1641226391,
    4523037.262253659
   ],
   "end_xy": [
    593268.0913863286,
    4522941.250209446
   ]
  }
 },
 "window_minima": {
  "min_5m": {
   "gradient_pct": 1.4879793284853804,
   "start_distance_m": 371.0,
   "end_distance_m": 376.0,
   "midpoint_distance_m": 373.5,
   "start_elevation_m": 370.80446600689527,
   "end_elevation_m": 370.87886497331954,
   "start_xy": [
    593314.88768956,
    4522780.070350495
   ],
   "end_xy": [
    593317.0126703086,
    4522775.598805641
   ]
  },
  "min_10m": {
   "gradient_pct": 3.344400861489021,
   "start_distance_m": 370.0,
   "end_distance_m": 380.0,
   "midpoint_distance_m": 375.0,
   "start_elevation_m": 370.76218446050837,
   "end_elevation_m": 371.09662454665727,
   "start_xy": [
    593314.3905267875,
    4522780.938007788
   ],
   "end_xy": [
    593317.2187287519,
    4522771.604116676
   ]
  },
  "min_20m": {
   "gradient_pct": 5.0769868273008,
   "start_distance_m": 361.0,
   "end_distance_m": 381.0,
   "midpoint_distance_m": 371.0,
   "start_elevation_m": 370.15174070310076,
   "end_elevation_m": 371.1671380685609,
   "start_xy": [
    593311.1829662265,
    4522789.263005137
   ],
   "end_xy": [
    593317.2702433628,
    4522770.605444436
   ]
  },
  "min_25m": {
   "gradient_pct": 5.451486987398994,
   "start_distance_m": 363.0,
   "end_distance_m": 388.0,
   "midpoint_distance_m": 375.5,
   "start_elevation_m": 370.2885001542981,
   "end_elevation_m": 371.65137190114785,
   "start_xy": [
    593311.6842405436,
    4522787.326842939
   ],
   "end_xy": [
    593317.6308456386,
    4522763.614738749
   ]
  },
  "min_50m": {
   "gradient_pct": 6.285200086561872,
   "start_distance_m": 338.0,
   "end_distance_m": 388.0,
   "midpoint_distance_m": 363.0,
   "start_elevation_m": 368.5087718578669,
   "end_elevation_m": 371.65137190114785,
   "start_xy": [
    593305.4183115802,
    4522811.5288704205
   ],
   "end_xy": [
    593317.6308456386,
    4522763.614738749
   ]
  },
  "min_100m": {
   "gradient_pct": 6.984811463406913,
   "start_distance_m": 288.0,
   "end_distance_m": 388.0,
   "midpoint_distance_m": 338.0,
   "start_elevation_m": 364.66656043774094,
   "end_elevation_m": 371.65137190114785,
   "start_xy": [
    593291.9365929958,
    4522859.670945012
   ],
   "end_xy": [
    593317.6308456386,
    4522763.614738749
   ]
  }
 },
 "diagnostic_window_maxima": {
  "max_2m": {
   "gradient_pct": 26.65832379926485,
   "start_distance_m": 122.0,
   "end_distance_m": 124.0,
   "midpoint_distance_m": 123.0,
   "start_elevation_m": 343.24080524820886,
   "end_elevation_m": 343.77397172419415,
   "start_xy": [
    593245.4055036438,
    4523018.999506735
   ],
   "end_xy": [
    593245.95722796,
    4523017.077112323
   ]
  },
  "max_3m": {
   "gradient_pct": 26.250657009442573,
   "start_distance_m": 122.0,
   "end_distance_m": 125.0,
   "midpoint_distance_m": 123.5,
   "start_elevation_m": 343.24080524820886,
   "end_elevation_m": 344.02832495849214,
   "start_xy": [
    593245.4055036438,
    4523018.999506735
   ],
   "end_xy": [
    593246.2330901182,
    4523016.115915116
   ]
  }
 },
 "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",
   "may_continue_beyond_end"
  ]
 },
 "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_x59y453_PA_WesternPA_2019_D20.tif"
  ],
  "calculated_at": "2026-09-07T12:02:47+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": [
   "x59y453"
  ],
  "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": "Butler",
  "county": "Pennsylvania"
 }
}