{
 "ocl_version": "0.1.0",
 "name": "Camel's Hump Road",
 "slug": "camel-s-hump-road-2",
 "confidence": "B",
 "reported_claims": [],
 "ladder": [
  {
   "window_m": 2.0,
   "max_gradient_pct": 28.608299991518038,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 0.0,
   "end_distance_m": 2.0,
   "start_elevation_m": 332.22409315590147,
   "end_elevation_m": 332.79625915573183,
   "min_gradient_pct": 0.29754619590960374
  },
  {
   "window_m": 3.0,
   "max_gradient_pct": 20.685527031887812,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 0.0,
   "end_distance_m": 3.0,
   "start_elevation_m": 332.22409315590147,
   "end_elevation_m": 332.8446589668581,
   "min_gradient_pct": 0.4858889948044028
  },
  {
   "window_m": 5.0,
   "max_gradient_pct": 18.09635735151346,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 1246.0,
   "end_distance_m": 1251.0,
   "start_elevation_m": 465.1744612398561,
   "end_elevation_m": 466.0792791074318,
   "min_gradient_pct": 0.5793751118835644
  },
  {
   "window_m": 10.0,
   "max_gradient_pct": 17.863110057550102,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 1246.0,
   "end_distance_m": 1256.0,
   "start_elevation_m": 465.1744612398561,
   "end_elevation_m": 466.9607722456111,
   "min_gradient_pct": 0.6294178748748891
  },
  {
   "window_m": 20.0,
   "max_gradient_pct": 17.52301973529967,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 1242.0,
   "end_distance_m": 1262.0,
   "start_elevation_m": 464.4823994669728,
   "end_elevation_m": 467.98700341403276,
   "min_gradient_pct": 1.0139468008449626
  },
  {
   "window_m": 25.0,
   "max_gradient_pct": 17.341134000455668,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 1240.0,
   "end_distance_m": 1265.0,
   "start_elevation_m": 464.1460309723512,
   "end_elevation_m": 468.4813144724651,
   "min_gradient_pct": 1.3051692261542485
  },
  {
   "window_m": 50.0,
   "max_gradient_pct": 16.74363990709719,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 1225.0,
   "end_distance_m": 1275.0,
   "start_elevation_m": 461.7332891523518,
   "end_elevation_m": 470.1051091059004,
   "min_gradient_pct": 2.867588161056233
  },
  {
   "window_m": 100.0,
   "max_gradient_pct": 15.941138707675691,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 1181.0,
   "end_distance_m": 1281.0,
   "start_elevation_m": 455.0713206991479,
   "end_elevation_m": 471.0124594068236,
   "min_gradient_pct": 5.163527421477625
  }
 ],
 "shape": {
  "ascent_concentration": 0.328,
  "concentration_window_frac": 0.25,
  "longest_pitch_10pct_m": 392.0,
  "shape_class": "sustained"
 },
 "length_m": 2183.9835359059502,
 "start_elevation_m": 332.22409315590147,
 "end_elevation_m": 553.2676066409259,
 "endpoint_gain_m": 221.04351348502445,
 "overall_gradient_pct": 10.121116292817298,
 "accumulated_ascent_m": 221.04370729692937,
 "window_maxima": {
  "max_5m": {
   "gradient_pct": 18.09635735151346,
   "start_distance_m": 1246.0,
   "end_distance_m": 1251.0,
   "midpoint_distance_m": 1248.5,
   "start_elevation_m": 465.1744612398561,
   "end_elevation_m": 466.0792791074318,
   "start_xy": [
    666164.9285682909,
    4907342.873389941
   ],
   "end_xy": [
    666164.9879691293,
    4907347.873037082
   ]
  },
  "max_10m": {
   "gradient_pct": 17.863110057550102,
   "start_distance_m": 1246.0,
   "end_distance_m": 1256.0,
   "midpoint_distance_m": 1251.0,
   "start_elevation_m": 465.1744612398561,
   "end_elevation_m": 466.9607722456111,
   "start_xy": [
    666164.9285682909,
    4907342.873389941
   ],
   "end_xy": [
    666165.0256525147,
    4907352.872313359
   ]
  },
  "max_20m": {
   "gradient_pct": 17.52301973529967,
   "start_distance_m": 1242.0,
   "end_distance_m": 1262.0,
   "midpoint_distance_m": 1252.0,
   "start_elevation_m": 464.4823994669728,
   "end_elevation_m": 467.98700341403276,
   "start_xy": [
    666164.7684339904,
    4907338.879124555
   ],
   "end_xy": [
    666164.7495654245,
    4907358.865957987
   ]
  },
  "max_25m": {
   "gradient_pct": 17.341134000455668,
   "start_distance_m": 1240.0,
   "end_distance_m": 1265.0,
   "midpoint_distance_m": 1252.5,
   "start_elevation_m": 464.1460309723512,
   "end_elevation_m": 468.4813144724651,
   "start_xy": [
    666164.598884822,
    4907336.886324245
   ],
   "end_xy": [
    666164.6115218794,
    4907361.8627803
   ]
  },
  "max_50m": {
   "gradient_pct": 16.74363990709719,
   "start_distance_m": 1225.0,
   "end_distance_m": 1275.0,
   "midpoint_distance_m": 1250.0,
   "start_elevation_m": 461.7332891523518,
   "end_elevation_m": 470.1051091059004,
   "start_xy": [
    666162.7943126023,
    4907322.008176832
   ],
   "end_xy": [
    666164.1513767291,
    4907371.852188013
   ]
  },
  "max_100m": {
   "gradient_pct": 15.941138707675691,
   "start_distance_m": 1181.0,
   "end_distance_m": 1281.0,
   "midpoint_distance_m": 1231.0,
   "start_elevation_m": 455.0713206991479,
   "end_elevation_m": 471.0124594068236,
   "start_xy": [
    666146.3211314941,
    4907282.31014128
   ],
   "end_xy": [
    666164.064957758,
    4907377.850444734
   ]
  }
 },
 "window_minima": {
  "min_5m": {
   "gradient_pct": 0.5793751118835644,
   "start_distance_m": 1411.0,
   "end_distance_m": 1416.0,
   "midpoint_distance_m": 1413.5,
   "start_elevation_m": 486.69210713477963,
   "end_elevation_m": 486.7210758903738,
   "start_xy": [
    666192.6109897392,
    4907503.397424288
   ],
   "end_xy": [
    666195.8452607517,
    4907507.210492739
   ]
  },
  "min_10m": {
   "gradient_pct": 0.6294178748748891,
   "start_distance_m": 1410.0,
   "end_distance_m": 1420.0,
   "midpoint_distance_m": 1415.0,
   "start_elevation_m": 486.68161760405854,
   "end_elevation_m": 486.74455939154603,
   "start_xy": [
    666191.9641355367,
    4907502.634810598
   ],
   "end_xy": [
    666198.770185206,
    4907509.905684784
   ]
  },
  "min_20m": {
   "gradient_pct": 1.0139468008449626,
   "start_distance_m": 1407.0,
   "end_distance_m": 1427.0,
   "midpoint_distance_m": 1417.0,
   "start_elevation_m": 486.6325654449506,
   "end_elevation_m": 486.8353548051196,
   "start_xy": [
    666190.2572270802,
    4907500.177053483
   ],
   "end_xy": [
    666204.640035999,
    4907513.675792253
   ]
  },
  "min_25m": {
   "gradient_pct": 1.3051692261542485,
   "start_distance_m": 1404.0,
   "end_distance_m": 1429.0,
   "midpoint_distance_m": 1416.5,
   "start_elevation_m": 486.5553565652789,
   "end_elevation_m": 486.88164887181745,
   "start_xy": [
    666188.678792961,
    4907497.62586832
   ],
   "end_xy": [
    666206.4069625861,
    4907514.612793019
   ]
  },
  "min_50m": {
   "gradient_pct": 2.867588161056233,
   "start_distance_m": 1396.0,
   "end_distance_m": 1446.0,
   "midpoint_distance_m": 1421.0,
   "start_elevation_m": 486.1826254136526,
   "end_elevation_m": 487.6164194941807,
   "start_xy": [
    666185.5663641689,
    4907490.343969187
   ],
   "end_xy": [
    666222.6659618438,
    4907519.349793165
   ]
  },
  "min_100m": {
   "gradient_pct": 5.163527421477625,
   "start_distance_m": 1393.0,
   "end_distance_m": 1493.0,
   "midpoint_distance_m": 1443.0,
   "start_elevation_m": 485.9504012597057,
   "end_elevation_m": 491.1139286811833,
   "start_xy": [
    666184.7687541606,
    4907487.451942515
   ],
   "end_xy": [
    666268.5049346641,
    4907529.696706355
   ]
  }
 },
 "diagnostic_window_maxima": {
  "max_2m": {
   "gradient_pct": 28.608299991518038,
   "start_distance_m": 0.0,
   "end_distance_m": 2.0,
   "midpoint_distance_m": 1.0,
   "start_elevation_m": 332.22409315590147,
   "end_elevation_m": 332.79625915573183,
   "start_xy": [
    665049.6051360954,
    4907005.256830444
   ],
   "end_xy": [
    665050.7591243527,
    4907006.890327032
   ]
  },
  "max_3m": {
   "gradient_pct": 20.685527031887812,
   "start_distance_m": 0.0,
   "end_distance_m": 3.0,
   "midpoint_distance_m": 1.5,
   "start_elevation_m": 332.22409315590147,
   "end_elevation_m": 332.8446589668581,
   "start_xy": [
    665049.6051360954,
    4907005.256830444
   ],
   "end_xy": [
    665051.3361184812,
    4907007.707075325
   ]
  }
 },
 "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": {
  "overhead_obstruction": {
   "obstruction_threshold_m": 2.0,
   "obstructed_fraction": 0.508,
   "obstruction_max_height_m": 26.37,
   "flagged_windows_m": [
    5,
    10,
    20,
    25,
    50,
    100
   ]
  },
  "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:26918",
  "elevation_resolution_m": 1.0,
  "elevation_tiles": [
   "data/cache/usa/vt/USGS_1M_18_x66y491_VT_Statewide_A23.tif"
  ],
  "calculated_at": "2026-09-04T15:31:05+00:00",
  "road_source": "OpenStreetMap (local PBF extract)",
  "road_attribution": "\u00a9 OpenStreetMap contributors, ODbL",
  "osm_pbf_path": "data/cache/pbf/vermont-260821.osm.pbf",
  "osm_snapshot": "2026-08-21T20:21:11Z",
  "run_id": "us-hs-bench-260904",
  "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, VT_Statewide_A23 (collected 2023)",
  "elevation_tile_ids": [
   "x66y491"
  ],
  "climb_origin": "discovered",
  "canopy_source": {
   "kind": "ept_corridor_max_return",
   "ept_source": "https://s3-us-west-2.amazonaws.com/usgs-lidar-public/VT_Statewide_2_A23",
   "ept_crs": "EPSG:3857",
   "station_coverage": 1.0,
   "cell_ground_m": 1.0,
   "nodes_failed": 0
  },
  "license": "ODbL-1.0",
  "license_url": "https://howsteep.org/licensing.html"
 },
 "area": {
  "place": "Huntington",
  "county": "Vermont"
 }
}