{
 "ocl_version": "0.1.0",
 "name": "Bruce Hill Road",
 "slug": "bruce-hill-road",
 "confidence": "B",
 "reported_claims": [],
 "ladder": [
  {
   "window_m": 2.0,
   "max_gradient_pct": 46.80286539373668,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 0.0,
   "end_distance_m": 2.0,
   "start_elevation_m": 203.51364377753086,
   "end_elevation_m": 204.4497010854056,
   "min_gradient_pct": -8.888777435271322
  },
  {
   "window_m": 3.0,
   "max_gradient_pct": 34.67710846015564,
   "diagnostic": true,
   "flags": [],
   "start_distance_m": 0.0,
   "end_distance_m": 3.0,
   "start_elevation_m": 203.51364377753086,
   "end_elevation_m": 204.55395703133553,
   "min_gradient_pct": -8.700727582178539
  },
  {
   "window_m": 5.0,
   "max_gradient_pct": 21.01355609189568,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 1461.0,
   "end_distance_m": 1466.0,
   "start_elevation_m": 306.64121005004165,
   "end_elevation_m": 307.69188785463643,
   "min_gradient_pct": -8.389452493927365
  },
  {
   "window_m": 10.0,
   "max_gradient_pct": 20.597692637808223,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 1453.0,
   "end_distance_m": 1463.0,
   "start_elevation_m": 305.00692699675375,
   "end_elevation_m": 307.06669626053457,
   "min_gradient_pct": -7.909612836152178
  },
  {
   "window_m": 20.0,
   "max_gradient_pct": 20.350255784188676,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 1452.0,
   "end_distance_m": 1472.0,
   "start_elevation_m": 304.8114938295937,
   "end_elevation_m": 308.88154498643144,
   "min_gradient_pct": -7.208181176257256
  },
  {
   "window_m": 25.0,
   "max_gradient_pct": 20.11965149394655,
   "diagnostic": false,
   "flags": [],
   "start_distance_m": 1453.0,
   "end_distance_m": 1478.0,
   "start_elevation_m": 305.00692699675375,
   "end_elevation_m": 310.0368398702404,
   "min_gradient_pct": -6.81675293888884
  },
  {
   "window_m": 50.0,
   "max_gradient_pct": 19.120057656033623,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 1440.0,
   "end_distance_m": 1490.0,
   "start_elevation_m": 302.6297228609493,
   "end_elevation_m": 312.1897516889661,
   "min_gradient_pct": -4.9303067623066
  },
  {
   "window_m": 100.0,
   "max_gradient_pct": 18.446897691024787,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 2152.0,
   "end_distance_m": 2252.0,
   "start_elevation_m": 394.925804566734,
   "end_elevation_m": 413.37270225775876,
   "min_gradient_pct": -1.721178691830005
  }
 ],
 "shape": {
  "ascent_concentration": 0.412,
  "concentration_window_frac": 0.25,
  "longest_pitch_10pct_m": 532.0,
  "shape_class": "sustained"
 },
 "length_m": 3163.248893443362,
 "start_elevation_m": 203.51364377753086,
 "end_elevation_m": 457.5328314607014,
 "endpoint_gain_m": 254.01918768317054,
 "overall_gradient_pct": 8.030325663266332,
 "accumulated_ascent_m": 259.40502762543497,
 "window_maxima": {
  "max_5m": {
   "gradient_pct": 21.01355609189568,
   "start_distance_m": 1461.0,
   "end_distance_m": 1466.0,
   "midpoint_distance_m": 1463.5,
   "start_elevation_m": 306.64121005004165,
   "end_elevation_m": 307.69188785463643,
   "start_xy": [
    373889.27064144274,
    4689920.168602793
   ],
   "end_xy": [
    373892.90761771734,
    4689923.599696434
   ]
  },
  "max_10m": {
   "gradient_pct": 20.597692637808223,
   "start_distance_m": 1453.0,
   "end_distance_m": 1463.0,
   "midpoint_distance_m": 1458.0,
   "start_elevation_m": 305.00692699675375,
   "end_elevation_m": 307.06669626053457,
   "start_xy": [
    373882.39641166216,
    4689916.161205083
   ],
   "end_xy": [
    373890.72543195257,
    4689921.541040249
   ]
  },
  "max_20m": {
   "gradient_pct": 20.350255784188676,
   "start_distance_m": 1452.0,
   "end_distance_m": 1472.0,
   "midpoint_distance_m": 1462.0,
   "start_elevation_m": 304.8114938295937,
   "end_elevation_m": 308.88154498643144,
   "start_xy": [
    373881.456056171,
    4689915.821011682
   ],
   "end_xy": [
    373896.2676753795,
    4689928.566222198
   ]
  },
  "max_25m": {
   "gradient_pct": 20.11965149394655,
   "start_distance_m": 1453.0,
   "end_distance_m": 1478.0,
   "midpoint_distance_m": 1465.5,
   "start_elevation_m": 305.00692699675375,
   "end_elevation_m": 310.0368398702404,
   "start_xy": [
    373882.39641166216,
    4689916.161205083
   ],
   "end_xy": [
    373898.543005466,
    4689934.11611251
   ]
  },
  "max_50m": {
   "gradient_pct": 19.120057656033623,
   "start_distance_m": 1440.0,
   "end_distance_m": 1490.0,
   "midpoint_distance_m": 1465.0,
   "start_elevation_m": 302.6297228609493,
   "end_elevation_m": 312.1897516889661,
   "start_xy": [
    373869.76762324054,
    4689913.6154331025
   ],
   "end_xy": [
    373899.06213794195,
    4689946.002603927
   ]
  },
  "max_100m": {
   "gradient_pct": 18.446897691024787,
   "start_distance_m": 2152.0,
   "end_distance_m": 2252.0,
   "midpoint_distance_m": 2202.0,
   "start_elevation_m": 394.925804566734,
   "end_elevation_m": 413.37270225775876,
   "start_xy": [
    373768.8904841445,
    4690588.082503538
   ],
   "end_xy": [
    373854.9831221811,
    4690609.726461584
   ]
  }
 },
 "window_minima": {
  "min_5m": {
   "gradient_pct": -8.389452493927365,
   "start_distance_m": 918.0,
   "end_distance_m": 923.0,
   "midpoint_distance_m": 920.5,
   "start_elevation_m": 268.2518227471403,
   "end_elevation_m": 267.8323501224439,
   "start_xy": [
    373750.80116562976,
    4689687.666358787
   ],
   "end_xy": [
    373749.00505076465,
    4689692.332617608
   ]
  },
  "min_10m": {
   "gradient_pct": -7.909612836152178,
   "start_distance_m": 913.0,
   "end_distance_m": 923.0,
   "midpoint_distance_m": 918.0,
   "start_elevation_m": 268.62331140605914,
   "end_elevation_m": 267.8323501224439,
   "start_xy": [
    373752.5972804948,
    4689683.000099964
   ],
   "end_xy": [
    373749.00505076465,
    4689692.332617608
   ]
  },
  "min_20m": {
   "gradient_pct": -7.208181176257256,
   "start_distance_m": 912.0,
   "end_distance_m": 932.0,
   "midpoint_distance_m": 922.0,
   "start_elevation_m": 268.6806797732133,
   "end_elevation_m": 267.23904353796183,
   "start_xy": [
    373752.95650346787,
    4689682.066848201
   ],
   "end_xy": [
    373745.77204400743,
    4689700.731883488
   ]
  },
  "min_25m": {
   "gradient_pct": -6.81675293888884,
   "start_distance_m": 908.0,
   "end_distance_m": 933.0,
   "midpoint_distance_m": 920.5,
   "start_elevation_m": 268.89011281196923,
   "end_elevation_m": 267.185924577247,
   "start_xy": [
    373754.3933953599,
    4689678.333841143
   ],
   "end_xy": [
    373745.41282103444,
    4689701.665135251
   ]
  },
  "min_50m": {
   "gradient_pct": -4.9303067623066,
   "start_distance_m": 900.0,
   "end_distance_m": 950.0,
   "midpoint_distance_m": 925.0,
   "start_elevation_m": 269.1418382063603,
   "end_elevation_m": 266.676684825207,
   "start_xy": [
    373757.16465407755,
    4689670.829185985
   ],
   "end_xy": [
    373738.676616986,
    4689717.248731639
   ]
  },
  "min_100m": {
   "gradient_pct": -1.721178691830005,
   "start_distance_m": 888.0,
   "end_distance_m": 988.0,
   "midpoint_distance_m": 938.0,
   "start_elevation_m": 268.9774865683994,
   "end_elevation_m": 267.2563078765694,
   "start_xy": [
    373761.31800539396,
    4689659.570870265
   ],
   "end_xy": [
    373719.8042714963,
    4689750.202729225
   ]
  }
 },
 "diagnostic_window_maxima": {
  "max_2m": {
   "gradient_pct": 46.80286539373668,
   "start_distance_m": 0.0,
   "end_distance_m": 2.0,
   "midpoint_distance_m": 1.0,
   "start_elevation_m": 203.51364377753086,
   "end_elevation_m": 204.4497010854056,
   "start_xy": [
    373150.4,
    4689455.666
   ],
   "end_xy": [
    373152.36827290984,
    4689456.0208263695
   ]
  },
  "max_3m": {
   "gradient_pct": 34.67710846015564,
   "start_distance_m": 0.0,
   "end_distance_m": 3.0,
   "midpoint_distance_m": 1.5,
   "start_elevation_m": 203.51364377753086,
   "end_elevation_m": 204.55395703133553,
   "start_xy": [
    373150.4,
    4689455.666
   ],
   "end_xy": [
    373153.3524093648,
    4689456.198239555
   ]
  }
 },
 "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": 0.152,
   "obstruction_max_height_m": 35.92,
   "flagged_windows_m": [
    50,
    100
   ]
  },
  "review": [],
  "extent": []
 },
 "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/ny/USGS_1M_18_x37y469_NY_FingerLakes_2020_A20.tif",
   "data/cache/usa/ny/USGS_1M_18_x37y470_NY_FingerLakes_2020_A20.tif"
  ],
  "calculated_at": "2026-09-06T12:05:09+00:00",
  "road_source": "OpenStreetMap (local PBF extract)",
  "road_attribution": "\u00a9 OpenStreetMap contributors, ODbL",
  "osm_pbf_path": "data/cache/pbf/new-york-2026-09-06-batch-band1.osm.pbf",
  "osm_snapshot": "",
  "run_id": "ny-run3-260906",
  "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, NY_FingerLakes_2020_A20 (collected 2020)",
  "elevation_tile_ids": [
   "x37y469",
   "x37y470"
  ],
  "climb_origin": "discovered",
  "canopy_source": {
   "kind": "ept_corridor_max_return",
   "ept_source": "https://s3-us-west-2.amazonaws.com/usgs-lidar-public/NY_FingerLakes_1_2020",
   "ept_crs": "EPSG:3857",
   "station_coverage": 0.999,
   "cell_ground_m": 1.0,
   "nodes_failed": 0
  },
  "license": "ODbL-1.0",
  "license_url": "https://howsteep.org/licensing"
 },
 "area": {
  "place": "Newfield",
  "county": "New York"
 }
}