{
 "ocl_version": "0.1.0",
 "name": "Highland Avenue",
 "slug": "highland-avenue-19",
 "confidence": "A",
 "reported_claims": [],
 "ladder": [
  {
   "window_m": 2.0,
   "max_gradient_pct": 29.061248554521057,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 80.0,
   "end_distance_m": 82.0,
   "start_elevation_m": 318.00419179800434,
   "end_elevation_m": 318.58541676909476,
   "min_gradient_pct": -2.020801069409117
  },
  {
   "window_m": 3.0,
   "max_gradient_pct": 28.55112252402705,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 80.0,
   "end_distance_m": 83.0,
   "start_elevation_m": 318.00419179800434,
   "end_elevation_m": 318.86072547372515,
   "min_gradient_pct": -1.7978298333635696
  },
  {
   "window_m": 5.0,
   "max_gradient_pct": 27.796105508436995,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 80.0,
   "end_distance_m": 85.0,
   "start_elevation_m": 318.00419179800434,
   "end_elevation_m": 319.3939970734262,
   "min_gradient_pct": -1.8519018307995339
  },
  {
   "window_m": 10.0,
   "max_gradient_pct": 27.0113140118292,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 76.0,
   "end_distance_m": 86.0,
   "start_elevation_m": 316.959153812261,
   "end_elevation_m": 319.6602852134439,
   "min_gradient_pct": -1.4976121369659268
  },
  {
   "window_m": 20.0,
   "max_gradient_pct": 26.623826589885766,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 66.0,
   "end_distance_m": 86.0,
   "start_elevation_m": 314.33551989546675,
   "end_elevation_m": 319.6602852134439,
   "min_gradient_pct": -1.3852395127321415
  },
  {
   "window_m": 25.0,
   "max_gradient_pct": 26.448056275535464,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 76.0,
   "end_distance_m": 101.0,
   "start_elevation_m": 316.959153812261,
   "end_elevation_m": 323.57116788114485,
   "min_gradient_pct": -1.2908442846771777
  },
  {
   "window_m": 50.0,
   "max_gradient_pct": 25.55282829856094,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 55.0,
   "end_distance_m": 105.0,
   "start_elevation_m": 311.789527018797,
   "end_elevation_m": 324.5659411680775,
   "min_gradient_pct": 0.36456077132811515
  },
  {
   "window_m": 100.0,
   "max_gradient_pct": 20.999319236495747,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 55.0,
   "end_distance_m": 155.0,
   "start_elevation_m": 311.789527018797,
   "end_elevation_m": 332.78884625529275,
   "min_gradient_pct": 4.882055307522023
  }
 ],
 "shape": {
  "ascent_concentration": 0.455,
  "concentration_window_frac": 0.25,
  "longest_pitch_10pct_m": 81.0,
  "shape_class": "stepped"
 },
 "length_m": 447.53086466760817,
 "start_elevation_m": 305.0567237512524,
 "end_elevation_m": 355.8353328403216,
 "endpoint_gain_m": 50.77860908906922,
 "overall_gradient_pct": 11.346392639708483,
 "accumulated_ascent_m": 51.11828921737589,
 "window_maxima": {
  "max_5m": {
   "gradient_pct": 27.796105508436995,
   "start_distance_m": 80.0,
   "end_distance_m": 85.0,
   "midpoint_distance_m": 82.5,
   "start_elevation_m": 318.00419179800434,
   "end_elevation_m": 319.3939970734262,
   "start_xy": [
    616981.589150553,
    4464465.699415584
   ],
   "end_xy": [
    616983.4338140108,
    4464461.052135011
   ]
  },
  "max_10m": {
   "gradient_pct": 27.0113140118292,
   "start_distance_m": 76.0,
   "end_distance_m": 86.0,
   "midpoint_distance_m": 81.0,
   "start_elevation_m": 316.959153812261,
   "end_elevation_m": 319.6602852134439,
   "start_xy": [
    616980.1134197867,
    4464469.417240043
   ],
   "end_xy": [
    616983.8027467025,
    4464460.122678896
   ]
  },
  "max_20m": {
   "gradient_pct": 26.623826589885766,
   "start_distance_m": 66.0,
   "end_distance_m": 86.0,
   "midpoint_distance_m": 76.0,
   "start_elevation_m": 314.33551989546675,
   "end_elevation_m": 319.6602852134439,
   "start_xy": [
    616976.4240928709,
    4464478.711801189
   ],
   "end_xy": [
    616983.8027467025,
    4464460.122678896
   ]
  },
  "max_25m": {
   "gradient_pct": 26.448056275535464,
   "start_distance_m": 76.0,
   "end_distance_m": 101.0,
   "midpoint_distance_m": 88.5,
   "start_elevation_m": 316.959153812261,
   "end_elevation_m": 323.57116788114485,
   "start_xy": [
    616980.1134197867,
    4464469.417240043
   ],
   "end_xy": [
    616989.336737076,
    4464446.180837176
   ]
  },
  "max_50m": {
   "gradient_pct": 25.55282829856094,
   "start_distance_m": 55.0,
   "end_distance_m": 105.0,
   "midpoint_distance_m": 80.0,
   "start_elevation_m": 311.789527018797,
   "end_elevation_m": 324.5659411680775,
   "start_xy": [
    616972.3658332635,
    4464488.9358184505
   ],
   "end_xy": [
    616990.8124678424,
    4464442.463012718
   ]
  },
  "max_100m": {
   "gradient_pct": 20.999319236495747,
   "start_distance_m": 55.0,
   "end_distance_m": 155.0,
   "midpoint_distance_m": 105.0,
   "start_elevation_m": 311.789527018797,
   "end_elevation_m": 332.78884625529275,
   "start_xy": [
    616972.3658332635,
    4464488.9358184505
   ],
   "end_xy": [
    617039.5823636814,
    4464441.998773723
   ]
  }
 },
 "window_minima": {
  "min_5m": {
   "gradient_pct": -1.8519018307995339,
   "start_distance_m": 343.0,
   "end_distance_m": 348.0,
   "midpoint_distance_m": 345.5,
   "start_elevation_m": 350.259887126301,
   "end_elevation_m": 350.16729203476103,
   "start_xy": [
    617226.5834239187,
    4464436.55778444
   ],
   "end_xy": [
    617231.4715876089,
    4464435.506187684
   ]
  },
  "min_10m": {
   "gradient_pct": -1.4976121369659268,
   "start_distance_m": 338.0,
   "end_distance_m": 348.0,
   "midpoint_distance_m": 343.0,
   "start_elevation_m": 350.3170532484576,
   "end_elevation_m": 350.16729203476103,
   "start_xy": [
    617221.6952602285,
    4464437.609381196
   ],
   "end_xy": [
    617231.4715876089,
    4464435.506187684
   ]
  },
  "min_20m": {
   "gradient_pct": -1.3852395127321415,
   "start_distance_m": 338.0,
   "end_distance_m": 358.0,
   "midpoint_distance_m": 348.0,
   "start_elevation_m": 350.3170532484576,
   "end_elevation_m": 350.0400053459112,
   "start_xy": [
    617221.6952602285,
    4464437.609381196
   ],
   "end_xy": [
    617241.2479149895,
    4464433.402994172
   ]
  },
  "min_25m": {
   "gradient_pct": -1.2908442846771777,
   "start_distance_m": 336.0,
   "end_distance_m": 361.0,
   "midpoint_distance_m": 348.5,
   "start_elevation_m": 350.3318203381489,
   "end_elevation_m": 350.0091092669796,
   "start_xy": [
    617219.7399947523,
    4464438.030019899
   ],
   "end_xy": [
    617244.1808132036,
    4464432.772036118
   ]
  },
  "min_50m": {
   "gradient_pct": 0.36456077132811515,
   "start_distance_m": 318.0,
   "end_distance_m": 368.0,
   "midpoint_distance_m": 343.0,
   "start_elevation_m": 349.9197472707587,
   "end_elevation_m": 350.10202765642276,
   "start_xy": [
    617202.1426054675,
    4464441.81576822
   ],
   "end_xy": [
    617250.4323260064,
    4464430.892131102
   ]
  },
  "min_100m": {
   "gradient_pct": 4.882055307522023,
   "start_distance_m": 324.0,
   "end_distance_m": 424.0,
   "midpoint_distance_m": 374.0,
   "start_elevation_m": 350.22244516755944,
   "end_elevation_m": 355.10450047508147,
   "start_xy": [
    617208.0084018958,
    4464440.553852113
   ],
   "end_xy": [
    617240.7701141138,
    4464375.772680421
   ]
  }
 },
 "diagnostic_window_maxima": {
  "max_2m": {
   "gradient_pct": 29.061248554521057,
   "start_distance_m": 80.0,
   "end_distance_m": 82.0,
   "midpoint_distance_m": 81.0,
   "start_elevation_m": 318.00419179800434,
   "end_elevation_m": 318.58541676909476,
   "start_xy": [
    616981.589150553,
    4464465.699415584
   ],
   "end_xy": [
    616982.3270159361,
    4464463.840503355
   ]
  },
  "max_3m": {
   "gradient_pct": 28.55112252402705,
   "start_distance_m": 80.0,
   "end_distance_m": 83.0,
   "midpoint_distance_m": 81.5,
   "start_elevation_m": 318.00419179800434,
   "end_elevation_m": 318.86072547372515,
   "start_xy": [
    616981.589150553,
    4464465.699415584
   ],
   "end_xy": [
    616982.6959486277,
    4464462.91104724
   ]
  }
 },
 "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_x61y447_PA_WesternPA_2019_D20.tif"
  ],
  "calculated_at": "2026-09-07T14:57:18+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": [
   "x61y447"
  ],
  "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": "Jeannette",
  "county": "Pennsylvania"
 }
}