{
 "ocl_version": "0.1.0",
 "name": "Rudman Drive",
 "slug": "rudman-drive",
 "confidence": "B",
 "reported_claims": [],
 "ladder": [
  {
   "window_m": 2.0,
   "max_gradient_pct": 27.82581150560759,
   "diagnostic": true,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 268.0,
   "end_distance_m": 270.0,
   "start_elevation_m": 121.86116983823818,
   "end_elevation_m": 122.41768606835033,
   "min_gradient_pct": 1.4959988438086214
  },
  {
   "window_m": 3.0,
   "max_gradient_pct": 27.179748291215827,
   "diagnostic": true,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 268.0,
   "end_distance_m": 271.0,
   "start_elevation_m": 121.86116983823818,
   "end_elevation_m": 122.67656228697466,
   "min_gradient_pct": 1.6433704591866178
  },
  {
   "window_m": 5.0,
   "max_gradient_pct": 25.733048870994253,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 267.0,
   "end_distance_m": 272.0,
   "start_elevation_m": 121.63907845548623,
   "end_elevation_m": 122.92573089903594,
   "min_gradient_pct": 2.3655855792756597
  },
  {
   "window_m": 10.0,
   "max_gradient_pct": 24.123340210224313,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 159.0,
   "end_distance_m": 169.0,
   "start_elevation_m": 100.07294930535325,
   "end_elevation_m": 102.48528332637568,
   "min_gradient_pct": 4.487762011444687
  },
  {
   "window_m": 20.0,
   "max_gradient_pct": 22.648824133686887,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 152.0,
   "end_distance_m": 172.0,
   "start_elevation_m": 98.59455864913109,
   "end_elevation_m": 103.12432347586847,
   "min_gradient_pct": 5.542844268498968
  },
  {
   "window_m": 25.0,
   "max_gradient_pct": 22.28808404917845,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 146.0,
   "end_distance_m": 171.0,
   "start_elevation_m": 97.34657086900432,
   "end_elevation_m": 102.91859188129894,
   "min_gradient_pct": 5.741590234760565
  },
  {
   "window_m": 50.0,
   "max_gradient_pct": 21.12312906018576,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 146.0,
   "end_distance_m": 196.0,
   "start_elevation_m": 97.34657086900432,
   "end_elevation_m": 107.9081353990972,
   "min_gradient_pct": 8.34140430765052
  },
  {
   "window_m": 100.0,
   "max_gradient_pct": 20.415136155958336,
   "diagnostic": false,
   "flags": [
    "canopy_or_structure"
   ],
   "start_distance_m": 146.0,
   "end_distance_m": 246.0,
   "start_elevation_m": 97.34657086900432,
   "end_elevation_m": 117.76170702496266,
   "min_gradient_pct": 11.735931883271562
  }
 ],
 "shape": {
  "ascent_concentration": 0.322,
  "concentration_window_frac": 0.25,
  "longest_pitch_10pct_m": 225.0,
  "shape_class": "sustained"
 },
 "length_m": 279.4724463113786,
 "start_elevation_m": 78.07939053571158,
 "end_elevation_m": 123.34501661376461,
 "endpoint_gain_m": 45.26562607805303,
 "overall_gradient_pct": 16.196811769994536,
 "accumulated_ascent_m": 45.26562607805303,
 "window_maxima": {
  "max_5m": {
   "gradient_pct": 25.733048870994253,
   "start_distance_m": 267.0,
   "end_distance_m": 272.0,
   "midpoint_distance_m": 269.5,
   "start_elevation_m": 121.63907845548623,
   "end_elevation_m": 122.92573089903594,
   "start_xy": [
    293110.9160105167,
    4787605.282955015
   ],
   "end_xy": [
    293107.95107070776,
    4787601.256898392
   ]
  },
  "max_10m": {
   "gradient_pct": 24.123340210224313,
   "start_distance_m": 159.0,
   "end_distance_m": 169.0,
   "midpoint_distance_m": 164.0,
   "start_elevation_m": 100.07294930535325,
   "end_elevation_m": 102.48528332637568,
   "start_xy": [
    293209.84842932475,
    4787636.1049872665
   ],
   "end_xy": [
    293201.10004630405,
    4787631.26083672
   ]
  },
  "max_20m": {
   "gradient_pct": 22.648824133686887,
   "start_distance_m": 152.0,
   "end_distance_m": 172.0,
   "midpoint_distance_m": 162.0,
   "start_elevation_m": 98.59455864913109,
   "end_elevation_m": 103.12432347586847,
   "start_xy": [
    293215.8957549001,
    4787639.619435663
   ],
   "end_xy": [
    293198.44143206504,
    4787629.885286073
   ]
  },
  "max_25m": {
   "gradient_pct": 22.28808404917845,
   "start_distance_m": 146.0,
   "end_distance_m": 171.0,
   "midpoint_distance_m": 158.5,
   "start_elevation_m": 97.34657086900432,
   "end_elevation_m": 102.91859188129894,
   "start_xy": [
    293220.83532244485,
    4787643.025411657
   ],
   "end_xy": [
    293199.35036969994,
    4787630.29200661
   ]
  },
  "max_50m": {
   "gradient_pct": 21.12312906018576,
   "start_distance_m": 146.0,
   "end_distance_m": 196.0,
   "midpoint_distance_m": 171.0,
   "start_elevation_m": 97.34657086900432,
   "end_elevation_m": 107.9081353990972,
   "start_xy": [
    293220.83532244485,
    4787643.025411657
   ],
   "end_xy": [
    293175.2469279721,
    4787624.251863806
   ]
  },
  "max_100m": {
   "gradient_pct": 20.415136155958336,
   "start_distance_m": 146.0,
   "end_distance_m": 246.0,
   "midpoint_distance_m": 196.0,
   "start_elevation_m": 97.34657086900432,
   "end_elevation_m": 117.76170702496266,
   "start_xy": [
    293220.83532244485,
    4787643.025411657
   ],
   "end_xy": [
    293125.45010054286,
    4787620.369660306
   ]
  }
 },
 "window_minima": {
  "min_5m": {
   "gradient_pct": 2.3655855792756597,
   "start_distance_m": 274.0,
   "end_distance_m": 279.0,
   "midpoint_distance_m": 276.5,
   "start_elevation_m": 123.22075298237824,
   "end_elevation_m": 123.33903226134203,
   "start_xy": [
    293106.7650947842,
    4787599.6464757435
   ],
   "end_xy": [
    293103.80015497527,
    4787595.62041912
   ]
  },
  "min_10m": {
   "gradient_pct": 4.487762011444687,
   "start_distance_m": 1.0,
   "end_distance_m": 11.0,
   "midpoint_distance_m": 6.0,
   "start_elevation_m": 78.13381303733829,
   "end_elevation_m": 78.58258923848275,
   "start_xy": [
    293337.10693336354,
    4787709.924047089
   ],
   "end_xy": [
    293327.60626699904,
    4787713.044517988
   ]
  },
  "min_20m": {
   "gradient_pct": 5.542844268498968,
   "start_distance_m": 2.0,
   "end_distance_m": 22.0,
   "midpoint_distance_m": 12.0,
   "start_elevation_m": 78.1783810476647,
   "end_elevation_m": 79.2869499013645,
   "start_xy": [
    293336.15686672705,
    4787710.23609418
   ],
   "end_xy": [
    293316.75246603444,
    4787711.8090629345
   ]
  },
  "min_25m": {
   "gradient_pct": 5.741590234760565,
   "start_distance_m": 0.0,
   "end_distance_m": 25.0,
   "midpoint_distance_m": 12.5,
   "start_elevation_m": 78.07939053571158,
   "end_elevation_m": 79.51478809440172,
   "start_xy": [
    293338.057,
    4787709.612
   ],
   "end_xy": [
    293313.78398264555,
    4787711.3753506215
   ]
  },
  "min_50m": {
   "gradient_pct": 8.34140430765052,
   "start_distance_m": 0.0,
   "end_distance_m": 50.0,
   "midpoint_distance_m": 25.0,
   "start_elevation_m": 78.07939053571158,
   "end_elevation_m": 82.25009268953684,
   "start_xy": [
    293338.057,
    4787709.612
   ],
   "end_xy": [
    293289.0466210716,
    4787707.761081352
   ]
  },
  "min_100m": {
   "gradient_pct": 11.735931883271562,
   "start_distance_m": 0.0,
   "end_distance_m": 100.0,
   "midpoint_distance_m": 50.0,
   "start_elevation_m": 78.07939053571158,
   "end_elevation_m": 89.81532241898314,
   "start_xy": [
    293338.057,
    4787709.612
   ],
   "end_xy": [
    293255.9446472353,
    4787672.6748098675
   ]
  }
 },
 "diagnostic_window_maxima": {
  "max_2m": {
   "gradient_pct": 27.82581150560759,
   "start_distance_m": 268.0,
   "end_distance_m": 270.0,
   "midpoint_distance_m": 269.0,
   "start_elevation_m": 121.86116983823818,
   "end_elevation_m": 122.41768606835033,
   "start_xy": [
    293110.3230225549,
    4787604.477743691
   ],
   "end_xy": [
    293109.13704663137,
    4787602.867321041
   ]
  },
  "max_3m": {
   "gradient_pct": 27.179748291215827,
   "start_distance_m": 268.0,
   "end_distance_m": 271.0,
   "midpoint_distance_m": 269.5,
   "start_elevation_m": 121.86116983823818,
   "end_elevation_m": 122.67656228697466,
   "start_xy": [
    293110.3230225549,
    4787604.477743691
   ],
   "end_xy": [
    293108.54405866953,
    4787602.062109717
   ]
  }
 },
 "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": 0.705,
   "obstruction_max_height_m": 32.72,
   "flagged_windows_m": [
    2,
    3,
    5,
    10,
    20,
    25,
    50,
    100
   ]
  },
  "review": [],
  "extent": [
   "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/ny/USGS_1M_18_x29y479_NY_FEMAR2_Central_2018_D19.tif"
  ],
  "calculated_at": "2026-09-06T12:44:41+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_FEMAR2_Central_2018_D19 (collected 2018)",
  "elevation_tile_ids": [
   "x29y479"
  ],
  "climb_origin": "discovered",
  "canopy_source": {
   "kind": "ept_corridor_max_return",
   "ept_source": "https://s3-us-west-2.amazonaws.com/usgs-lidar-public/NY_FEMAR2_Central_3_2018",
   "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"
 },
 "area": {
  "place": "Irondequoit",
  "county": "New York"
 }
}